Answer:
Below
Step-by-step explanation:
The ENTIRE perimeter of a circle is pi * d
a semi circle circumference is 1/2 of this 1/2 pi * d PLUS the diameter line
1/2 pi * ( 2 mm) + 2mm = 5.14 mm
cuanto es 92.5 × 10 por la potencia de 2
The expression is equivalent to 9250.
What is scientific notation?Scientific notation is a way of writing very large or very small numbers in the powers of 10.
Given is the expression -
92.5 x 10²
We can write the expression as -
92.5 x 10²
925/10 x 100
925 x 10
9250
Therefore, the expression is equivalent to 9250.
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{
Question in english -
what is 92.5 × 10 times the power of 2
}
Find a discount on a 255 cell phone that is on sale for %35 off
Answer:
Step-by-step explanation:
35% of 255 = 89.25
255-89.25 =165.75
2.14x10^2 in standard form?
Answer:
2.14x10^12= Two and fourteen hundredths times ten to the second power
OR
14x10^2 = Fourteen times ten to the second power
Is that a 2.14 or 14?
What base can you rewrite both 5 and 1 over 25 using properties of exponents?
The expression can be written as 5¹/₂₅.
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
Given that the number is 5 and 1 over 25. The mixed fraction can be written as:-
E = 5 and 1 over 25
E = 5¹/₂₅.
Therefore, the expression can be written as 5¹/₂₅.
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i need to find the slope of each equation
The slopes are :- -5, 1/3, -1/5, undefined, 1/4, -2/3, -1, -1, -2/3 and -5/2
What is slope?The slope of a line is a measure of its steepness. Mathematically, slope is calculated as "rise over run" (change in y divided by change in x).
Given are the equations of the lines, we need to find the slope of the equation,
The general equation of a line is given by,
y = mx + c, where m is the slope and c is the y-intercept of the line.
So, finding slope of given equations by comparing them with the general equation,
1) y = -5x-1
m = -5, slope = -5
2) y = x/3-4
m = 1/3, slope = 1/3
3) y = -x/5-4
m = -1/5, slope = -1/5
4) x = 1,
Since, x=1 is a vertical line, the slope is undefined.
5) y = x/4+1
m = 1/4, slope = 1/4
6) y = -2x/3-1
m = -2/3, slope = -2/3
7) y = -x+2
m = -1, slope = -1
8) y = -x-1
m = -1, slope = -1
9) 2x+3y = 9
Converting into slope-intercept form,
2x+3y = 9
3y = -2x+9
y = -2x/3+3
m = -2/3, slope = -2/3
10) 5x+2y = 6
Converting into slope-intercept form,
5x+2y = 6
2y = -5x+6
y = -5x/2+3
m = -5/2, slope = -5/2
Hence, the slopes are :- -5, 1/3, -1/5, undefined, 1/4, -2/3, -1, -1, -2/3 and -5/2
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Solve 4.5 divided by 0.8
Answer:
5.625
Step-by-step explanation:
4.5/0.8 = 5.625
An oil spill spreads 25 square meters every $\frac{1}{6}$
hour. What is the area of the oil spill after 2 hours?
The rate is 150 square meters per hour. Then the area of the oil spill after 2 hours will be 300 square meters.
What is the rate?The rate is the ratio of the amount of something to the unit. For example - If the speed of the car is 20 km/h it means the car travels 20 km in one hour.
An oil spill spreads 25 square meters every 1/6 hour. Then the number of square meters in each hour is given as,
Rate = 25 / (1/6)
Rate = 25 x 6
Rate = 150 square meters per hour
The area of the oil spill after 2 hours will be given as,
⇒ 150 x 2
⇒ 300 square meters
Thus, the area of the oil spill after 2 hours will be 300 square meters.
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Please help with this its geometry
All the correct fractions are,
⇒ 2 yd / 8 ft = 3 / 4
⇒ 24 in / 3 ft = 2 / 3
⇒ 4 ft / 4 yd = 1 / 3
⇒ 32 in / 2 ft = 4 / 3
What is mean by Ratio?A ratio indicates how many times one number contain in another number. The ratio of two number is written as x : y, which is equivalent to x/y. Where, x and y are individual amount of two quantities. And, Total quantity gives after combine as x + y.
We have to given that;
All the fractions are,
⇒ 2 yd / 8 ft
⇒ 24 in / 3 ft
⇒ 4 ft / 4 yd
⇒ 32 in / 2 ft
Now, We know that;
⇒ 1 yard = 3 feet
⇒ 1 feet = 12 inches
So, By the fractions we get;
⇒ 2 yd / 8 ft
⇒ 6 ft / 8 ft
⇒ 6 / 8
⇒ 3 / 4
⇒ 24 in / 3 ft
⇒ 24 in / 36 in
⇒ 12 / 18
⇒ 2 / 3
⇒ 4 ft / 4 yd
⇒ 4 ft / 12 ft
⇒ 1 / 3
⇒ 32 in / 2 ft
⇒ 32 in / 24 in
⇒ 4 / 3
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Use technology to find points and then graph the function y = √x +3-6 following the instructions below.
ASAP PLEASE
The graph of the function is added as an attachment
How to graph the equationFrom the question, we have the following parameters that can be used in our computation:
y = √x +3-6
Make y the subject
y =√(x + 3) - 6
The above equation is a square root function
The parent of a square root function is represented as
y = √x
This means that the parent function was translated to get the given function
Next, we plot the graph of the equation
See attachment for the graph
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an office building worth $6 million when completed in 1997 was depreciated linearly over 50 years; that is, the book value of the building decreases at a constant rate, so that at the end of 50 years the book value is zero. a) what was the book value, in dollars, of the building in 2014?. answer: b) what will be the book value, in dollars, in 2028? answer:
The book value of the building in 2014 was $3.96 million. The book value of the building in 2028 will be $2.28 million.
a) The book value of the building in 2014 can be calculated as follows:
Book Value = Original Cost - (Depreciation Rate * Years Depreciated)
Depreciation Rate = Original Cost / Number of Years
Depreciation Rate = 6 million / 50 years = $120,000 per year
Years Depreciated = 2014 - 1997 = 17 years
Book Value = 6 million - (120,000 * 17) = 6 million - 2.04 million = $3.96 million
So, the book value of the building in 2014 was $3.96 million.
b) The book value of the building in 2028 can be calculated in a similar manner:
Years Depreciated = 2028 - 1997 = 31 years
Book Value = 6 million - (120,000 * 31) = 6 million - 3.72 million = $2.28 million.
So, the book value of the building in 2028 will be $2.28 million.
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Find an nth-degree polynomial function with real coefficients satisfying the given conditions. If you are using a graphing utility, use it to graph the function and verify the real zeros and the given function
value.
n=4;
- 1, 4, and 4 + 4i are zeros;
f(1) = - 150
This function satisfies the conditions given: it is an nth-degree polynomial with real coefficients, it has zeros at -1, 4, and 4 + 4i, and it has the value of -150 at x = 1.
What do you mean by polynomial?A polynomial is a mathematical expression that is composed of variables and coefficients, which are combined using only addition, subtraction, and multiplication. The variables in a polynomial can be raised to whole number powers, and the highest degree of a polynomial (i.e., the highest power to which a variable is raised) is known as the degree of the polynomial. For example, the polynomial 3x^2 + 2x + 1 has a degree of 2. The terms in a polynomial are usually arranged in descending order of degree, so that the first term has the highest degree and the last term has a degree of zero. The sum or difference of two or more polynomials is also a polynomial.
To find an nth-degree polynomial function with real coefficients that satisfies the given conditions, we can use the following process:
1. Write the polynomial in factored form using the zeros:
p(x) = a(x-1)(x-4)(x-(4+4i))(x-(4-4i))
2. Use the value of f(1) to find the leading coefficient a:
f(1) = p(1) = a(0)(0)(0)(0) = -150
a = -150
3. Write the polynomial in expanded form:
p(x) = -150(x-1)(x-4)(x-(4+4i))(x-(4-4i))
The resulting polynomial function is:
p(x) = -150(x-1)(x-4)(x-(4+4i))(x-(4-4i))
This function satisfies the conditions given: it is an nth-degree polynomial with real coefficients, it has zeros at -1, 4, and 4 + 4i, and it has the value of -150 at x = 1.
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Given lines l, m,l,m,and nn are parallel and cut by two transversal lines, find the value of xx. Round your answer to the nearest tenth if necessary.
The value of x is 12.
What is a transversal?When two or more parallel lines are intersected by a straight line, then the line is said to be a transversal. These produces a series of angles which have some common properties.
In the given question, the lines l, m and n were cut by two transversals. Thus we can compare the corresponding parts of line segments.
We have;
x/ 35 = 14/ 41
cross multiply to have;
41x = 35*14
= 490
x = 490/ 41
= 11.9512
Thus, the value of x is 12.
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Convert 2.75 m° / min to gallons per hour.
Answer:
Step-by-step explanation:
(2.75m / min) x 60
= 0.04359 gallons / hour
(sorry if im wrong xd)
Which graph represents an increasing function? (1 point) Four graphs of y against x are shown. The title for the first graph is Graph A, the title for the second graph is Graph B, the title for the third graph is Graph C, and the title for the fourth graph is Graph D. Graph A is a straight line joining the ordered pairs 0, 4 and 5, 0. Graph B is a straight line joining the points 0, 0 and 5, 5. Graph C is a straight line joining the points 0, 3 and 5, 3. Graph D is a straight line joining the points 5, 0 and 5, 5. Graph A Graph B Graph C Graph D
keely is looking at leasing a car for 24 months in order to lease the car she needs to give the dealership $750
The cost of the car leasing for 1 month is $31.25.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
Cost of the car leasing for 24 months = $750
Cost of the car leasing for 1 month.
= 750 ÷ 24
= $31.25
Thus,
The monthly cost of car leasing is $31.25.
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The complete question:
Keely is looking at leasing a car for 24 months in order to lease the car she needs to give the dealership $750.
Find the monthly charge for leasing the car.
1. For each expression, use the distributive property to write an equivalent expression. a. 4(x + 2) c. 4(2x + 3) b. (6+8).x d. 6(x+y+z)
The equivalent expressions are:
a) 4*(x + 2) = 4x + 8
b) 4*(2x + 3) = 8x + 12
c) (6 + 8)*x = 14*x
d) 6*(x + y + z) = 6x + 6y + 6z
How to use the distributive property?This is a property of the multiplication, and it says that we can distribute products in the following way:
A*(B + C) = A*B + A*C
So let's do that.
a) 4*(x + 2) = 4*x + 4*2 = 4x + 8
b) 4*(2x + 3) = 4*(2x) + 4*3
= 8x + 12
c) (6 + 8)*x = 6*x + 8*x = 14*x
d) 6*(x + y + z) = 6x + 6y + 6z
These are the equivalent expressions.
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Please help me with this
Solve the proportion 5 over 8 = y over 40
Answer:
Below
Step-by-step explanation:
y/40 = 5/8 multiply both sides of the equation by 40
y = 40 * 5/8 = 200/8 = 25
A Web music store offers two versions of a popular song. The size of the standard version is 2.5 megabytes (MB). The size of the high-quality version is 4.5 MB. Yesterday, the high-quality version was downloaded three times as often as the standard version. The total size downloaded for the two versions was 3840 MB. How many downloads of the standard version were there?
The total size downloaded for both versions was 3840 MB.
What is number?Number is a mathematical object used to count level and measure it is the fundamental concept in mathematics and used in many different way number can be used to represent anything from quantities of object to ideas and concept additionally number are used to describe relationship between different object or concept number are also used to represent position in space as well as represent the time graph of table.
Since the size of the high-quality version was 4.5 MB, the total size downloaded for the high-quality version was 4.5 MB x 3 = 13.5 MB. Therefore, the total size downloaded for the standard version was 3840 MB - 13.5 MB = 3826.5 MB. Since the size of the standard version was 2.5 MB, the number of downloads for the standard version was 3826.5 MB / 2.5 MB = 1530.6. Rounding to the nearest whole number, the number of downloads for the standard version was 1531.
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MATH QUESTION! 50 POINTS
Answer:
229 Feet I think it is right just make sure
Step-by-step explanation:
x+125/255=x/165
cross multiply
255x=165x+20,625
90x=20,625
229=x
a tire company measures the tread on newly-produced tires and finds that they are normally distributed with a mean depth of 0.84mm and a standard deviation of 0.35mm. find the probability that a randomly selected tire will have a depth less than 0.24mm. would this outcome warrant a refund (meaning that it would be unusual)? homework help: 4va. calculating normal probabilities (links to an external site.) (2:18) 4da. description of normal distribution, area, and probabilities, definition of unusual events (links to an external site.)(docx) group of answer choices probability of 0.96 and would warrant a refund probability of 0.96 and would not warrant a refund probability of 0.04 and would warrant a refund probability of 0.04 and would not warrant a refund
the Probability of 0.04 and would warrant a refund.
What is probability?Probability is a number that expresses the likelihood or chance that a specific event will take place. Both proportions ranging from 0 to 1 and percentages ranging from 0% to 100% can be used to describe probabilities.
Given, A tire company measures the tread on newly-produced tires and finds that they are normally distributed with a mean depth of 0.84mm and a standard deviation of 0.35mm.
probability = P(X<0.24)
= (Z<(0.24-0.84)/0.35)
= P(Z<(-1.7143)
= 0.0432 ~ 0.04
since the above probability is less than 0.05 ;
this event can be termed unusual
therefore, the Probability of 0.04 and would warrant a refund.
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in hypothetical measurements, you record 1 decimal when using a graduated cylinder, 2 decimals when using a buret, and 4 decimals when using a balance. which device is most precise in measuring volume? why?
The graduated cylinder is most precise in measuring volume.
Precision is the degree to which separate measurements agree with one another. The general rule is that you can estimate one additional digit past the measuring device's smallest division, 100-mL graduated cylinders are read to 1 decimal, and the smallest graduated cylinder will hold the entire volume.
Precision refers to the number of significant figures in a measurement. When measuring liquid volumes, it is critical to read the graduated scale from the lowest point on the curved surface of the liquid, known as the liquid meniscus.
Graduated cylinders are ideal for precise liquid measurements with a much smaller margin of error.The device with the most precision in measuring volume is the balance. Precision refers to the level of detail and the number of significant digits in a measurement, and more significant digits indicate a higher level of precision. In this case, the balance provides the greatest level of precision with 4 decimal places, while the graduated cylinder provides only 1 decimal place and the buret provides 2 decimal places.This means that the balance provides the most accurate and detailed measurement of volume compared to the other two devices.
Hence, the graduated cylinder is most precise in measuring volume.
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What are the partitions the segment into a ratio of 1 to 2
so hmmm let's call the points A(-10 , 5) and B(8 , 2) and the point "C" partitions them, so
[tex]\textit{internal division of a line segment using ratios} \\\\\\ A(-10,5)\qquad B(8,2)\qquad \qquad \stackrel{\textit{ratio from A to B}}{1:2} \\\\\\ \cfrac{A\underline{C}}{\underline{C} B} = \cfrac{1}{2}\implies \cfrac{A}{B} = \cfrac{1}{2}\implies 2A=1B\implies 2(-10,5)=1(8,2)[/tex]
[tex](\stackrel{x}{-20}~~,~~ \stackrel{y}{10})=(\stackrel{x}{8}~~,~~ \stackrel{y}{2}) \implies C=\underset{\textit{sum of the ratios}}{\left( \cfrac{\stackrel{\textit{sum of x's}}{-20 +8}}{1+2}~~,~~\cfrac{\stackrel{\textit{sum of y's}}{10 +2}}{1+2} \right)} \\\\\\ C=\left( \cfrac{ -12 }{ 3 }~~,~~\cfrac{ 12}{ 3 } \right)\implies C=(-4~~,~~4)[/tex]
a time study showed that, on average, the productivity of a worker after t hours on the job can be modeled by
The equation P(t) = A - Bexp(-ct) can be used to model a worker's productivity after t hours on the job, where A, B, and c are positive constants.
We can then define the change in productivity over a brief period of time dt as
dP(t) = P(t+dt) - P(t)where P(t) is the productivity at time t. We can assume that dP(t) is negative because productivity is assumed to decrease over time.
As a result, the equation can be written as dP(t)/dt = -cP(t), or it can be rewritten as P(t) = Aexp(-ct), where A is a constant. P(t) = A - Bexp(-ct) can be obtained by adding a constant B to the right side of the equation to account for the fact that productivity can never be negative.
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1/2x+8≤10
simplify pls
Answer:
4
Step-by-step explanation:
1/2x + 8 ≤10 / ×2
x + 16 ≤ 20
x ≤ 20 - 16
x ≤ 4
[tex]\dfrac{1}{2} x+8\leq 10[/tex]
Subtract 8 from both sides:
[tex]\dfrac{1}{2} x+8-8\leq 10-8[/tex]
[tex]\dfrac{1}{2} x\leq 2[/tex]
Multiply both sides by 2:
[tex]2\times(\dfrac{1}{2} x)\leq 2\times(2)[/tex]
[tex]\boxed{x\leq 4}[/tex]
Identify the domain and range for the relation.
{(1, 3), (2, 5), (3, 7), (4, 9), (5,9)}
D= {1, 2, 3, 4, 5)
R = {3, 5, 7, 9, 9)
D=(3, 5, 7, 9}
R = {1, 2, 3, 4, 5}
D=(3, 5, 7, 9, 9}
R= {1, 2, 3, 4, 5}
D= {1, 2, 3, 4, 5)
R = {3, 5, 7, 9)
The domain and range of the relation is
Domain = {1, 2, 3, 4, 5}
Range = {3, 5, 7, 9}
Option D is the correct answer.
What is a function?A function is a relationship between inputs where each input is related to exactly one output.
Example:
f(x) = 2x + 1
f(1) = 2 + 1 = 3
f(2) = 2 x 2 + 1 = 4 + 1 = 5
The outputs of the functions are 3 and 5
The inputs of the function are 1 and 2.
We have,
{(1, 3), (2, 5), (3, 7), (4, 9), (5,9)}
It is in ordered paired as (x, y).
x-coordinate is the domain and the y-coordinate is the range.
So,
Domain = {1, 2, 3, 4, 5}
Range = {3, 5, 7, 9}
Thus,
Domain = {1, 2, 3, 4, 5}
Range = {3, 5, 7, 9}
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what is the correct answer
The percentage of the race he finished first is 40%
What is percentage?A number or ratio that can be expressed as a fraction of 100 is referred to as a percentage in mathematics. If we need to calculate a percentage of a number, we should divide it by its entirety and then multiply it by 100. The proportion therefore refers to a component per hundred. Per 100 is what the word percent means. The letter "%" stands for it.
Glenn raced his motorcycle 30 times and he finished first 12 times.
So, 12/30 = 2/5 = x/40
by using cross multiplication we get,
⇒ 5 * x = 2 * 100
⇒ 5 * x = 200
divided both side by 5 we get,
⇒ 5 * x / 5 = 200 / 5
⇒ x = 40
So that the percentage of the race he finished first is 40%
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you run a regression analysis on a bivariate set of data ( ). you obtain the regression equation with a correlation coefficient of (which is significant at ). you want to predict what value (on average) for the explanatory variable will give you a value of 150 on the response variable. what is the predicted explanatory value?
Without the actual values of b0 and b1, it is not possible to determine the predicted explanatory value. The correlation coefficient alone does not give enough information to make this prediction.
To find the predicted explanatory value that gives an average response value of 150, you would need to use the regression equation.
The regression equation takes the form:
y = b0 + b1x
where y is the response variable, x is the explanatory variable, b0 is the y-intercept, and b1 is the slope.
To find the x value that gives you a y value of 150, you would rearrange the equation as follows:
x = (y - b0)/b1
Plug in 150 for y and the y-intercept and slope values from your regression analysis to find the predicted explanatory value.
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a storage room is 4 yards long by 3 yards wide by 1 1/2. a yard is 27 feet. how many cubic feet is the shed
Answer:
354.294 cu ft
Step-by-step explanation:
4*3*1.5 = 18 cube yard *27³ = 354.294 cu ft
you have to multiply 27 three times because every side of the shed 4, 3, 1.5 yards equals to 4*27 ft, 3*27 ft, 1.5*27 ft
suppose that one of the 400 accidents is chosen at random. what is the probability that the accident involved more than a single vehicle?
Assuming a binomial distribution for the number of auto accidents. If 7 in 10 auto accidents involve a single vehicle, the probability, p =[tex]\frac{7}{10}[/tex] = 0.7
Then the probability that the accident involved multiple vehicles is
q = 1 - p = 1 - 7/10 = 3/10 = 0.3
Since 14 accidents are randomly selected, n = 14
The formula for binomial distribution is expressed as
P(x = r) = nCr × q*(n - r) × p*r
a) we want to determine P(x = 4) =
P(x = 4) = 14C4 × [tex]0.3^{10}[/tex] × 0.7^4
P(x = 4) = 0.00142
b) we want to find P(x lesser than or equal to 4) = P(x = 0) + P(x = 1) + P(x = 2) + P(x = 3) + P( x = 4)
P(x = 0) = 14C0 × [tex]0.3^{14}[/tex] × 0.7^0 = 0.00000004783
P(x = 1) = 14C1 × [tex]0.3^{13}[/tex] × 0.7^1 = 0.00011
P(x = 2) = 14C2 × [tex]0.3^{12}[/tex] × 0.7^2 = 0.00002
P(x = 3) = 14C3 ×[tex]0.3^{11}[/tex] × 0.7^3 = 0.00022
P(x = 4) = 0.00142
P(x lesser than or equal to 4) = 0.00000004783 + 0.00011 + 0.00002 + 0.00022 + 0.00142 = 0.00177
c) p = 0.7, q = 0.3
P(x = 5)= 14C5 × 0.7^(14 - 5) × 0.3^5 = 0.19631
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