The equation of the relation between x and y is y= 2x
How to determine the equationFrom the question, we have the following parameters that can be used in our computation:
The table of values
On the table of values, we can see that
y is twice of x
When represented as an equation, we have
y = 2x
Hence, the equation is y = 2x
Read more about equation at
brainly.com/question/2972832
#SPJ1
Complete question
Without performing any algebraic manipulations, can you define the relation between x and y?
X (input) 7 8 9 10
y (output) 14 16 18 20
Find the exact value of each of the remaining trigonometric functions of θ. Rationalize denominators when applicable.
secθ=−8, given that sinθ>0
The exact values of the remaining trigonometric functions of θ are:
sin(θ) = √(1/64)
cos(θ) = -8
tan(θ) = -8√(1/64)
csc(θ) = 1
cot(θ) = -√(1/64) / 8
Given that sec(θ) = -8 and sin(θ) > 0, we can find the exact values of the remaining trigonometric functions using the Pythagorean identity:
sec^2(θ) = 1/sin^2(θ)
Substituting the value of sec(θ), we have:
(-8)^2 = 1/sin^2(θ)
64 = 1/sin^2(θ)
sin^2(θ) = 1/64
sin(θ) = ±√(1/64)
Since sin(θ) > 0, we take the positive square root:
sin(θ) = √(1/64)
Next, we use the reciprocal identity for cosecant:
csc(θ) = 1/sin(θ)
Substituting the value of sin(θ), we have:
csc(θ) = 1/√(1/64) = 8√(1/64) = 8/√(64) = 8/8 = 1
Next, we use the reciprocal identity for cotangent:
cot(θ) = 1/tan(θ)
We can find the value of tan(θ) using the definition:
tan(θ) = sin(θ) / cos(θ)
Substituting the values of sin(θ) and cos(θ), we have:
tan(θ) = √(1/64) / (-8) = -√(1/64) / 8
Finally, we use the reciprocal identity for a tangent:
tan(θ) = 1/cot(θ)
Substituting the value of cot(θ), we have:
tan(θ) = -8√(1/64)
Therefore, the exact values of the remaining trigonometric functions of θ are:
sin(θ) = √(1/64)
cos(θ) = -8
tan(θ) = -8√(1/64)
csc(θ) = 1
cot(θ) = -√(1/64) / 8
The complete question is:-
Find the exact value of each of the remaining trigonometric functions of
θ. Rationalize denominators when applicable.
secθ=−8, given that sinθ>0
To learn more about trigonometric functions, refer:-
https://brainly.com/question/6904750
#SPJ4
Can any one help with the circled ones
The reasoning based on the information will be:
a) Deductive reasoning.
b) Deductive reasoning.
What is a deductive reasoning?Deductive reasoning follows a top-down method, whereas inductive reasoning follows a bottom-up method. While deductive thinking involves drawing conclusions by moving from general premises to specific conclusions, inductive reasoning involves moving from the specific to the general.
A specific conclusion is reached by the logical process of inductive reasoning, which combines several premises that are all generally accepted as true or discovered to be true. Applications that involve prediction, forecasting, or behavior use inductive reasoning frequently. In both cases, deductions were made based on the information.
Learn more about reasoning on:
https://brainly.com/question/7284582
#SPJ1
a dilation has center (0,0). find the image of the point b (7/2, -6/5) for the scale factor 1/9
The image of the point b(7/2 , -6/5) is (7/18,-2/15)
what is the Cartesian coordinate system?A Cartesian coordinate system in a plane is a coordinate system that specifies each point uniquely by a pair of numerical coordinates,
Given here: A dilation has center (0,0) and image of the point b (7/2,-6/5)
Now it is given that the scale factor is 1/9
Thus the image of the given point is
x=7/2×1/9
x=7/18
y=-6/5×1/9
y=-2/15
Thus the image is (7/18,-2/15)
Learn more about cartesian coordinate system here:
https://brainly.com/question/29762404
#SPJ1
Consider a given function.
find a and b .
The values of a and b, considering the range of the function, are given as follows:
a = -3.b = 4.What is the range of a function?The range of a function is the set that contains all the output values that can be assumed by the function.
Hence, considering the graph, the range of a function is given by the values of y from the graph.
The minimum and maximum value of the function are given as follows:
Minimum of -3.Maximum of 4.Hence the values of a and b are given as follows:
a = -3.b = 4.More can be learned about the domain and the range of a function at brainly.com/question/30248800
#SPJ1
for the following functions, determine if the functions are periodic. if so, find the smallest positive period. (reminder: for the time function f(t), t is the period if it is the smallest possible real number that satisfies f(t)
Yes, the function f(x) = 3 sin(2x) is periodic. The smallest positive period of this function is 2π/2 = π.
f(x) = 3 sin(2x) This is because the function is sinusoidal and the period of a sinusoidal function is 2π/n,
where n is the coefficient in front of the x (which in this case is 2). Thus, the period of f(x) = 3 sin(2x) is 2π/2 = π.
This means that the function will repeat itself after every π units. To verify this, we can plug in x = 0 and x = π into the equation and see that we get the same value, 3 sin(2(0)) = 3 sin(0) = 0 and 3 sin(2(π)) = 3 sin(2π) = 0, showing that the function repeats itself after every π units.
Learn more about function here:
https://brainly.com/question/28278690
#SPJ4
PLEASE HELP ITS URGENT
A store is instructed by corporate headquarters to put a markup of 25% on all items. An item costing $24 is displayed by the store manager at a selling price of $6. As an employee, you notice that this selling price is incorrect. Find the correct selling price. What was the manager's likely error?
The correct selling price of an item will be $12.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that a store is instructed by corporate headquarters to put a markup of 25% on all items. An item costing $24 is displayed by the store manager at a selling price of $6.
The selling price will be calculated as:-
Selling price = 25% of 24 + $6
Selling price = 6 + 6
Selling price = $12
Hence, the selling price of the item is $12.
To know more about an expression follow
https://brainly.com/question/15063909
#SPJ1
let $l$ be the line with equation $\dbinom{10}{3} \dbinom{-2}{1}t$. let $\mathbf{v}$ be a vector from the origin to a point on $l$. find the minimum value of $\|\mathbf{v}\|$.
The minimum value of [tex]$\|\mathbf{v}\|$[/tex] is zero.
The minimum value of [tex]$\|\mathbf{v}\|$[/tex] is zero, as it is the distance between the origin and a point on the line. To solve this problem, the formula [tex]$\|\mathbf{v}\| = \sqrt{x^2 + y^2}$[/tex] can be used, where x and y are the coordinates of the point on the line. Since the equation of the line is [tex]$\dbinom{10}{3} \dbinom{-2}{1}t$[/tex], the coordinates of the point on the line can be found by substituting [tex]$t = 0$: $x = 10 \cdot 0 - 2 \cdot 0 = 0$, and $y = 3 \cdot 0 + 1 \cdot 0 = 0$[/tex] . Substituting these values into the formula for [tex]$\|\mathbf{v}\|$ gives $\|\mathbf{v}\| = \sqrt{0^2 + 0^2} = 0$[/tex]. Therefore, the minimum value of [tex]$\|\mathbf{v}\|$[/tex] is zero.
Learn more about minimum value here:
https://brainly.com/question/14316282
#SPJ4
Given the function g(x) = |× + 31, describe the graph of the function, including the vertex, domain, and range.
The graph of the function is V-shaped, vertex domain and range are (-3,0), all the real values and [0, ∞);
What is the absolute value function?The absolute value function, with vertex (h,k), is defined as follows:
y = |x - h| + k.
The features of the function are given as follows;
Vertex: (h,k).
Domain: All real values;
Range: [k, ∞).
Given;
g(x) = |× + 31|
Therefore, for the first item of the function is |x + 3|, since we just have to identify the features;
More can be learned about absolute value functions at; brainly.com/question/3381225
#SPJ1
A rectangular field is four times as long as it is wide. If the perimeter of the field is 560 yards, what are the field’s dimensions?
Answer:
Width=56 yards
length=224 yards
Step-by-step explanation:
let:
Width=x
length= x*4= 4x
perimeter = 2*x + 2*4x
working
[tex](x \times 2) + (4x \times 2) = 560[/tex]
[tex]2x + 8x = 560[/tex]
[tex]10x = 560[/tex]
[tex] \frac{10x}{10} = \frac{560}{10} [/tex]
[tex]x = 56[/tex]
[tex]4x = 56 \times 4 = 224[/tex]
width =56 yards
length = 224 yards
A transportation commission studies driving times between two cities to determine whether the construction of a new highway reduced commute times. Times for 4040 cars driving on the old highway and times for 5050 cars driving on the new highway are obtained. A summary of the data obtained from the study is given below.Highway: Mean commute times; Population standard deviation1 (Old); 5.35; 0.52 (New); 4.95; 0.81)What is the standard error? Type as: #.###2)What is the z-score? Type as: #.###3) What is the p-value? Type as: #.######
Based on the provided information, standard error is 0.138, z-score is 2.898, and p value is 0.0013995.
The standard error of a statistic refers to the standard deviation of its sampling distribution or an estimate of that standard deviation. It indicates how different the population mean is likely to be from a sample mean. Standard error of two samples is given by:
SE = √((S1^2)/n1+(S2^2)/n2)
In the given case s1 = 0.5, n1 = 40, s2 = 0.8, and n2 = 50. Hence,
SE = √(〖0.5〗^2/40+〖0.8〗^2/50)=0.138
Z-score for two samples is given by:
z = ((x1-x2)/SE) where x1 and x2 are sample means
In the given case x1= 5.35 and x2 = 4.95. Hence,
z = ((x1-x2)/SE) = (5.35-4,95)/0.138=2.898
The p -value from the table is when p(x >z) = 0.0013995.
Learn more about Standard error:
https://brainly.com/question/1191244
#SPJ4
use the definition or identities to find the exact value of each of the remaining five trigonometric functions of the acute angle
The value of Sinθ 1/√197, cos θ = 14/√197, csc θ = H/P =√197, sec θ =√197/14, Cot θ = 14
Trigonometric functions are real functions in mathematics that connect an angle of a right-angled triangle to ratios of two side lengths. They are widely utilised in all geosciences, including navigation, solid mechanics, celestial mechanics, geodesy, and many more.
Trigonometry employs six fundamental trigonometric functions. These ratios are trigonometric functions. The sine function, cosine function, secant function, co-secant function, tangent function, and co-tangent function are the six fundamental trigonometric functions. The ratio of sides of a right-angled triangle is the basis for trigonometric functions and identities.
if triangle is form,
Then Perpendicular(P) = 1 and Base(B) = 14
Then Hypotenuse(H) = √(12 + 142)= √197
Then , sin θ = P/H = 1/√197
cos θ = B/H = 14/√197
csc θ = H/P = √197/1 = √197
sec θ = H/B =√197/14
Cot θ = B/P = 14/1 = 14
For more questions on Trigonometric functions
https://brainly.com/question/24349828
#SPJ4
The complete question should be:
use the definition or identities to find the exact value of each of the remaining five trigonometric functions of the acute angle, given that tan θ = 1/14 ,
An amusement park has opened a new roller coaster. It is so popular that people are waiting for up to 3 hours for a 2-minute ride. Concerned about how people who might be willing to wait in line for 3 hours feel about this, they survey every 15th person in line for the roller coaster, starting from a randomly selected individual. a) What kind of sample is this? b) Is it likely to be representative of the people in line for the roller coaster? c) What is the sampling frame? O A. a simple random sample O B. a systematic sample OC. a convenience sample OD. a census b) Is the sample likely to be representative of the people in line for the roller coaster? O A. Yes OB. No c) Choose the correct sampling frame below. O A. all the patrons of the park OB. all the patrons willing to wait in line for the roller coaster OC. all the people who go to amusement parks OD. all the patrons who like roller coasters
a) The sample is a systematic sample., b) It may not be representative of all people in line for the roller coaster., c) The sampling frame is all the people who are willing to wait in line for the roller coaster.
a) A systematic sample is a sample where individuals are selected from a larger population at regular intervals or through a set pattern. In this case, the amusement park is selecting every 15th person in line, making it a systematic sample.
b) The sample may not be representative of the population of people in line for the roller coaster because by only including every 15th person, certain groups of people who are similar may be overrepresented or underrepresented in the sample, potentially leading to a biased representation of the opinions of the people waiting in line.
c) The sampling frame for this survey is the population of people waiting in line for the roller coaster. This is the group of individuals from which the sample will be taken. In this case, the sampling frame is not limited to just the patrons of the park, or all the people who go to amusement parks, but is specifically focused on the people waiting in line for the roller coaster.
Learn more about systematic sample here:
https://brainly.com/question/28454088
#SPJ4
consider a production process that produces batteries. a quality engineer has taken 20 samples each containing 100 batteries. the total number of defective batteries observed over the 20 samples is 200. the sample standard deviation is
The sample standard deviation is 0.03
As per the given data, a quality engineer has taken the 20 samples in which each containing of 100 batteries.
The total number of the defective batteries which are observed over the 20 samples is 200.
Here we have to calculate the value of the sample standard deviation
The number of samples, k = 20
The number of batteries in each sample:
The sample size = 100
The total number of batteries of the sample are:
The total number of samples, [tex]$\sum{n=20 \times 100=2000}$[/tex]
[tex]& \bar{n}=\sum_\frac{n}{k}} \\[/tex]
= [tex]$\frac{2000}{20}[/tex]
= 100
The total number of defective batteries = 200
Now we can calculate the proportion of the deflective battery:
Therefore, [tex]$\bar{p}=$[/tex] The total number of defectives ÷ The total number of samples
= [tex]$\frac{200}{2000}[/tex]
= 0.10
The standard deviation, [tex]$\sigma_{\mathrm{p}}=\sqrt{\frac{\bar{p} \bar{q}}{\bar{n}}}$[/tex]
= [tex]$ \sqrt{\frac{0.1 \times 0.9}{100}} \\[/tex]
= [tex]& \sqrt{0.0009} \\[/tex]
= 0.03
For more questions on sample standard deviation
https://brainly.com/question/1418491
#SPJ4
a company records a journal entry that contains a debit to inventory. which of the following could be a valid entry to complete this journal entry?
When a journal entry contains a debit to inventory, a corresponding credit to an offsetting account, such as Cost of Goods Sold (COGS), is required.
A journal entry that contains a debit to inventory requires a corresponding credit to an offsetting account, such as Cost of Goods Sold (COGS). The formula for the entry would be:
Debit Inventory
Credit Cost of Goods Sold (COGS)
The calculation would depend on the cost of the inventory, the quantity purchased and the applicable tax rate. For example, if the cost of the inventory is $5,000, the quantity purchased is 500 and the applicable tax rate is 5%, the journal entry would look like this:
Debit Inventory $5,000
Credit Cost of Goods Sold (COGS) $4,750 ($5,000 x 95% = $4,750)
In this example, the total cost of the inventory was $5,000, but the credit to COGS was calculated by multiplying the cost of the inventory ($5,000) by 95% (the applicable tax rate of 5% was subtracted). The resulting amount of $4,750 was the amount credited to COGS.
In summary, when a journal entry contains a debit to inventory, a corresponding credit to an offsetting account, such as Cost of Goods Sold (COGS), is required. The formula for the entry is: Debit Inventory, Credit Cost of Goods Sold (COGS). The calculation for the entry depends on the cost of the inventory, the quantity purchased and the applicable tax rate.
Learn more about total cost here:
https://brainly.com/question/6506894
#SPJ4
which pair of segments in the figure below appear to be parallel?
determine which best describes lines g and k.
A. The pair of segments that is parallel will be AB & EF, DH & CG, and BC & FG. Then the correct option is A.
B. The line G and line K will be a skew line. Then the correct option is B.
What is Geometry?One of the first areas of mathematics is geometry, along with maths. It is preoccupied with spatial characteristics including the separation, form, size, and relative placement of objects. A geometer is a mathematician who specializes in shape.
A. The parallel edges of the rectangular is given below.
AB = CD = EF = GH
AE = DH = CG = BF
BC = AD = EH = FG
The pair of segments that is parallel will be AB & EF, DH & CG, and BC & FG. Then the correct option is A.
B. The line G and line K will be a skew lines. Then the correct option is B.
More about the geometry link is given below.
https://brainly.com/question/7558603
#SPJ1
put the following rocks into proper order, from smallest grains (1) to largest (4). note: there are a pair of rock types that have the same grain size. give them the same number.
The sequence of the grains should be from smallest to largest as follows:
1. Breccia, Siltstone
2. Conglomerate
3. Sandstone
4. Shale
What is a sequence?A sequence is an enumerated group of items in mathematics where repetitions are permitted and order is important.
It has members, just like a set does.
The length of the sequence is determined by the number of items.
You should be familiar with the following four main categories of sequences: arithmetic sequences, geometric sequences, quadratic sequences, and special sequences.
So, because the grain size of breccia and siltstone is the same, they should be assigned the same number.
- A cement-like substance holds angular shards of varying sizes together to form a rock called breccia.
- It can also be generated from volcanic ash or other materials but is often formed from angular shards of other rocks.
- A sedimentary rock called siltstone is made up of clay-sized particles and often has smaller grains than sandstone.
- A cementing substance holds rounded or sub-rounded grains and pebbles together to form the sedimentary rock known as a conglomerate.
- Sand-sized particles make up the sedimentary rock known as sandstone, which is often created from quartz grains.
- The last sedimentary rock is shale, which typically has a grain size lower than sandstone and is made up of clay-sized particles.
Therefore, the sequence of the grains should be from smallest to largest as follows:
1. Breccia, Siltstone
2. Conglomerate
3. Sandstone
4. Shale
Know more about a sequence here:
https://brainly.com/question/6561461
#SPJ4
Complete question:
points question at position 6 put the following rocks into proper order, from smallest grains (1) to largest (4). note: there are a pair of rock types that have the same grain size. give them the same number.
A) Breccia
B) Conglomerate
C)Sandstone
D) Shale
E) siltstone
I’m thinking of a number. When you multiply it by 5 and subtract 3 you will get a number less than 80. Form an inequality and solve it to describe the range of possible numbers
The range of possible numbers will be (-∞ , 16.6] as per the given conditions.
What is inequality?In mathematics, inequalities specify the connection between two non-equal numbers. Equal does not imply inequality. Typically, we use the "not equal sign ()" to indicate that two values are not equal. But several inequalities are utilized to compare the numbers, whether it is less than or higher than.
Given, I’m thinking of a number. When you multiply it by 5 and subtract 3 you will get a number less than 80.
Let "x" be the number
Thus from the given expression
=> 5*x - 3 < 80
add 3 on both sides
=> 5x -3 + 3 < 80 +3
=> 5x < 83divide by 5 into both sides
=> x < 83/5
=> x < 16.6
thus the range of x for the given Condition will be (-∞ , 16.6]
Learn more about inequalities here:
https://brainly.com/question/30231190
#SPJ1
use cylindrical shells to find the volume of the solid that is generated when the region that is enclosed by the given curves is revolved about the x-axis. y
The volume of the solid that is generated when the region that is enclosed by the given curves V=253/5π
When the volume of a solid is calculated by using the shell method, the result will be a definite integral that represents the sum of the volumes of infinite thick cylinders.
If the axis of rotation is horizontal, the cylinders are horizontal same. The volume of a horizontal cylinder will be 2πrh dy.
The graph defines the area enclosed by a parabola concave upwards, the y-axis, and the line x = 3 in the first quadrant.
There is the volume of the solid is calculated by using the formula:
[tex]V=2\pi \int\limits^d_c {y[g(y)-h(y)]} \, dy[/tex]
y is the radius of the cylinder
h is the height of the cylinder.
Given information is that:
g(y)=3, h(y)=y¹/², c=0, d=9
Now plug the values in the formula:
[tex]V=2\pi \int\limits^9_0 {y(3-y^\frac{1}{2} )} \, dy\\\\\\V=2\pi \int\limits^9_0 (3y-y^\frac{3}{2} )} \, dy[/tex]
Solving the integral:
[tex]V=2\pi (\frac{3}{2} y^2-\frac{2}{5} y^\frac{3}{5})|_0^9[/tex]
Apply the fundamental theorem of calculus:
[tex]V=2\pi [(\frac{3}{2} (9)^2-\frac{2}{5} (9)^\frac{3}{5})-V=2\pi (\frac{3}{2} (0)^2-\frac{2}{5} (0)^\frac{3}{5})]\\\\V=2\pi (\frac{243}{10} -0)\\\\V=2\pi (\frac{243}{10})\\[/tex]
V=243/5π
To know more about the volume of the solid:
https://brainly.com/question/28123312
#SPJ4
Marta is shopping where there is a sales tax of 8\%8%8, percent on any item she buys.
1. Write an equation that represents how much tax (ttt) Marta pays on an item whose price is ppp dollars.
2. How much tax does Marta pay on an item whose price is \$ 20$20dollar sign, 20?
\$$dollar sign
1. An equation that represents "the amount of tax on an item of price p",
t = p x X / 100
2. Marta does pay on an item whose price is $20, $1.6
What is the percentage?Percentage is a way to express a number as a fraction of 100. It is often used to represent ratios and proportions in a more convenient and understandable form, especially in financial and statistical contexts. For example, 50% means 50 per 100, or half of a given quantity. It is denoted using the symbol "%".
Given that,
Tax rate = 8%
1. Let's assume that the sales tax rate is X%.
Then, the equation that represents the amount of tax (t) Marta pays on an item whose price is p can be written as:
t = p x X / 100
2. If the price of the item is $20, the amount of tax Marta pays can be calculated as follows:
t = $20 x X / 100
t = $20 x 8 / 100
t = $1.6
So, Marta pays $1.6 in sales tax on an item whose price is $100.
To know more about Percentage check:
https://brainly.com/question/29306119
#SPJ1
22 Answer:
The variables x and y vary directly. Use the given values to write
an equation that relates x and y: x = 4, y = -16
23 Answer:
Find the slope of the graph of the equation: y = 2x + 5
24 Answer:
Find the y-intercept of the graph of the equation: y = 2x + 5
25 Answer:
Find the slope of the graph of the equation: y = 5 - 3x
26 Answer:
Find the y-intercept of the graph of the equation: y = 5 - 3x
27 Answer:
Solve the equation algebraically: 4x - 3 = 2
28 Answer:
Solve the equation algebraically: 9 = 10 - x
29 Answer:
Are the graphs of the two equations parallel lines
y = 2x + 1 and 2y = 4x + 5
a. yes
b. no
30 Answer:
Do the graphs of the two equations demonstrate parallel lines?
y = 4x - x and y = -4x + 3
a. yes
b. no
The slope of the graph of the equation: y = 2x + 5
Slope = 2
The y-intercept of the graph of the equation: y = 2x + 5
Y-intercept = 5
The slope of the graph of the equation: y = 5 - 3x
Slope = -3.
The y-intercept of the graph of the equation: y = 5 - 3x
Y-intercept = 5
What is an equation of the line?An equation of the line is defined as a linear equation having a degree of one. The equation of the line contains two variables x and y. And the third parameter is the slope of the line which represents the elevation of the line.
The general form of the equation of the line:-
y = mx + c
m = slope
c = y-intercept
Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )
1) y = 2x + 5 Slope = 2 is the slope of the equation's graph.
2.) The equation's graph's y-intercept is written as y = 2x + 5 Y-intercept = 5.
3) y = 5 - 3x Slope = -3 is the slope of the equation's graph.
4) The graph's y-intercept is as follows: y = 5 - 3x Y-intercept = 5.
To know more about an equation of the line follow
https://brainly.com/question/18831322
#SPJ1
At a local play, student tickets cost $6 each and adult tickets cost $11 each. If ticket sales were $3,000 for 400 tickets, how many students attended the play?
A 120
B 180
C 220
D 280
There are 280 students attending the play.
What are linear equations?Each term in a linear equation has an exponent of 1, and when this algebraic equation is graphed, it always produces a straight line. It is called a "linear equation" for this reason.
Both linear equations with one variable and those with two variables exist.
Given student tickets cost $6 each and adult tickets cost $11 each,
let a number of students be x and the number of tickets be y
total tickets sold = 400
x + y = 400
and total amount made = $3000
so 6x + 11y = 3000
from equation 1,
y = 400 - x
substitute in the equation,
6x + 11y = 3000
6x + 11(400 - x) = 3000
6x + 4400 - 11x = 3000
-5x = 3000 - 4400
-5x = -1400
x = 1400/5
x = 280
and y = 400 - 280
y = 120
Hence 280 students attended the play.
Learn more about linear equations;
https://brainly.com/question/11897796
#SPJ1
W=0+4T
640-7t=W
Please help me
Answer:
2560/11
Step-by-step explanation:
�
=
640
11
and
�
=
2560
11
consider the trial on which a 3 is first observed in successive rolls of a six-sided die. let a be the event that 3 is observed on the first trial. let b be the event that at least two trials are required to observe a 3. assuming that each side has probability 1/6, find (a) p(a), (b) p(b), and (c) p(a ub).
P(A) is the probability of observing 3 on first trial. P(B) is probability of observing 3 after at least 2 trials. P(A U B) is total probability of observing 3.
(a) The probability of observing a 3 on the first trial is 1/6. So, p(a) = 1/6.
(b) The probability of not observing a 3 on the first trial is 5/6.
If a 3 is not observed on the first trial, then the same experiment will be repeated with a 5/6 chance of not observing a 3 again.
This can be represented as (5/6)^2.
The probability of not observing a 3 on the first two trials is (5/6)^2.
So, the probability of observing a 3 on the third trial is
1 - (5/6)^2
This can be represented as
1 - (5/6)^n where n is the number of trials
The probability of requiring at least two trials to observe a 3 is the sum of the probabilities of observing a 3 on the third, fourth, fifth, etc. trials. This is equivalent to the sum of an infinite geometric series. The sum can be calculated using the formula
S = a/(1 - r) where S is the sum, a is the first term, and r is the common ratio.
In this case, a = 1 - (5/6)^2 and r = 5/6. So, the sum is S = (1 - (5/6)^2)/(1 - 5/6) = 6/36 = 1/6. Therefore, p(b) = 1/6.
(c) The probability of observing a 3 on the first trial or at least two trials is the sum of p(a) and p(b). So, p(a or b) = p(a) + p(b) = 1/6 + 1/6 = 1/3.
Learn more about geometric series :
https://brainly.com/question/4617980
#SPJ4
the united states of of representatives has 35 more members than four times the number of members in the unites states senate. define a variable and write an expression to represent the number of members in the house of representatives. Then find the number of members in the house of representatives, if there 100 members in the senate.
There are 435 members in the House of Representatives.
What is the algebraic expression?Algebraic expressions are mathematical statements with a minimum of two terms containing variables or numbers.
Let's call the number of members in the Senate "s".
The expression for the number of members in the House of Representatives is "h".
According to the problem, there are 35 more members in the House than four times the number of members in the Senate, so the expression for the number of members in the House is:
h = 4s + 35
If there are 100 members in the Senate, then we can substitute this value into the expression:
h = 4 × 100 + 35
h = 435
So, there are 435 members in the House of Representatives.
Learn more about the algebraic expression here :
brainly.com/question/21751419
#SPJ1
You are paid $11.75/hr. You work 40 hr/wk. Your deductions are FICA (7.65%), Federal tax withholding (10.75%), and state tax withholding (7.5%)
2.If you are able to work 20 hours of overtime the next month and are paid 1.5 times your regular rate, how does this change your budget for that month?
Compared to your regular wage without overtime, this would push your monthly budget up by $607.63.
What does a budget mean?In a budget, projected expenses are stated together with suggestions for how to fund them. A budget can show a surplus of resources for future use or a deficit where expenses are greater than income or other resources.
What are the three different sorts of budgets?Surplus Budget, Balanced Budget, and Deficit Budget are 3 types of annual governmental budgets based on estimation. A balanced budget is one in which the revenues are larger than the expenses or equal to them. In the above link, you can read about the Highlights of the Union Budget for UPSC.
Let's calculate the regular earnings for 40 hours of work first:
Regular earnings = $11.75 x 40 hours = $470
Next, let's calculate the overtime earnings:
Overtime rate = $11.75 x 1.5 = $17.63
Overtime earnings = $17.63 x 20 hours = $352.60
Now let's add the regular earnings and overtime earnings to get the total gross pay for the month:
Total gross pay = $470 + $352.60 = $822.60
Now let's calculate the deductions:
FICA = $822.60 x 7.65% = $63.17
Federal tax withholding = $822.60 x 10.75% = $89.11
State tax withholding = $822.60 x 7.5% = $61.69
Total deductions = $63.17 + $89.11 + $61.69 = $214.97
So, the net pay for the month (total gross pay minus total deductions) would be:
Net pay = $822.60 - $214.97 = $607.63
Therefore, working 20 hours of overtime would increase your budget by $607.63.
To know more about Budget visit:
https://brainly.com/question/18803390
#SPJ1
Proving Vertical Angles Are Congruent
Given: 2 and Z4 are vertical
angles.
Prove: 42 44
4
1
P
3
E
2
n
Assemble the proof by dragging tiles to
the Statements and Reasons columns.
Statements Reasons
m22+ m23 = 180
m23+ m24 = 180
42 and 43 are a linear pair 23 and 24 are a linear pair
Statements
Reasons
22
anc
mz
me
20. In a right triangle with a hypotenuse of length 24, a square with side 7 is inscribed as in the picture. What is the area of the right triangle?
The area of the right triangle is 80.5 square units.
What is the area of a triangle?The area of a triangle is described as the total region that is enclosed by the three sides of any particular triangle.
In the right triangle, one of the legs is equal to 7, as the side length of the square inscribed in it.
We will use the Pythagorean theorem to find the length of the other leg and the calculation is shown below:
a^2 + b^2 = c^2
7^2 + b^2 = 24^2
49 + b^2 = 576
b^2 = 527
b = √t(527) = 23
The area of the right triangle is then:
A = (1/2)ab = (1/2) * 7 * 23 = (1/2) * 161 = 80.5 square units
Learn more about area of the right triangle at: https://brainly.com/question/28470545
#SPJ1
A starship voyages to a distant planet 10 ly away. The explorers stay 4.0 yr , return at the same speed, and arrive back on earth 26 yr after they left. Assume that the time needed to accelerate and decelerate is negligible.
How much time has elapsed on the astronauts' chronometers?
Express your answer using two significant figures
The total time elapsed on the astronauts' chronometers is 20 years. This is calculated by subtracting the time spent traveling to and from the distant planet (2 * 10 years = 20 years) from the total time elapsed on Earth (26 years).
This result takes into account the time dilation effect of special relativity, which states that time passes more slowly for a moving object relative to a stationary observer. Since the astronauts were traveling at high speeds for much of their journey, the time elapsed on their chronometers would be less than the time elapsed on Earth.
The total time elapsed on the astronauts' chronometers is 20 years. This is calculated by subtracting the time spent traveling to and from the distant planet (2 * 10 years = 20 years) from the total time elapsed on Earth (26 years).
Learn more about subtracting :
https://brainly.com/question/2346316
#SPJ4
1.5.2For the telephone usage model of Example 1.18, let Bm denote the event that a call is billed for m minutes. To generate a phone bill, observe the duration of the call in integer minutes (rounding up). Charge for M minutes M = 1,2,3,... if the exact duration T is M-1
(a) The probability that a call is classified as long (L) is [tex]$P[L] = 1 - P[B_3] = 1 - \alpha (1-\alpha)^2 = 0.829$.[/tex]
(b) The probability that a call will be billed for nine minutes or less is
[tex]P[B1] + P[B2] + P[B3] + P[B4] + P[B5] + P[B6] + P[B7] + P[B8] + P[B_9] = \alpha + \alpha(1-\alpha) + \alpha(1-\alpha)^2 + \alpha(1-\alpha)^3 + \alpha(1-\alpha)^4 + \alpha(1-\alpha)^5 + \alpha(1-\alpha)^6 + \alpha(1-\alpha)^7 + \alpha(1-\alpha)^8 = 0.958[/tex]
Probability is a branch of mathematics that deals with the likelihood of an event occurring. It is expressed as a number from 0 to 1, with 0 indicating that an event is impossible and 1 indicating that it is certain to occur. Probability is used to calculate the chance of a random event happening or to predict the outcome of a situation. Probability theory is also used to describe the underlying mechanics and dynamics of random phenomena
Learn more about probability:
https://brainly.com/question/24756209
#SPJ4
Complete question:
For the telephone usage model of Example 1.18, let [tex]$B_m$[/tex] denote the event that a call is billed for $m$ minutes. To generate a phone bill, observe the duration of the call in integer minutes (rounding up). Charge for M minutes [tex]$M=1,2,3, \ldots$[/tex] if the exact duration T is [tex]$M-1 < t \leq M$[/tex]. A more complete probability model shows that for $m=1,2, \ldots$ the probability of each event [tex]$B_m$[/tex] is
[tex]$$P\left[B_m\right]=\alpha(1-\alpha)^{m-1}$$[/tex]
where [tex]$\alpha=1-(0.57)^{1 / 3}=0.171$[/tex]
(a) Classify a call as long, L, if the call lasts more than three minutes. What is [tex]$P [L]$[/tex] ?(b) What is the probability that a call will be billed for nine minutes or less?Which of the following is a solution to this inequality?
y less than two thirds times x plus 2
(0, 3)
(−3, 1)
(3, 5)
(1, 2)
The point that is a solution if the inequality:
y < (2/3)*x + 2
is (1, 2).
Which one is a solution of the inequality?Here we want to find a solution for the inequality below:
y < (2/3)*x + 2
To check if an ordered pair is a solution, then we need to replace the values of the ordered point and check if the inequality is true.
If we try with the first point we will get:
3 < (2/3)*0 + 2
3 < 2
That is false.
The correct option is (1, 2)
2 < (2/3)*1 + 2
2 < 8/3
Learn more about inequalities at:
https://brainly.com/question/24372553
#SPJ1