Answer:square
Step-by-step explanation: all right angles, all 90 degrees
Which is the best approximation for the solution of the system of equations?
y= -2/5x + 1
Y = 3x -2
A: (0.45, 0.88)
B:(0.88, 0.65)
C:(0.88, 1.11)
D:(1.3, 0.88)
Graph pictured below
Which is the least whole number that rounds to 2000 when rounded to the nearest hundred
The required number is 2001.
To solve this problem we need to know the concept of rounding off.
Rounding off a number means making the value of number equal to the nearest tens place.
When we round off 45 we will get 50; when we round off 44 we get 40.
So, if a number has 5 at its unit place then it will be rounded off to the tens place which is ahead of 5 and if a number is less than 5 then it is rounded off to the tens place before that number.
Here it is asked to find the least whole number that rounds off to 2000 when rounded off to nearest hundred which will be 2001.
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PLEASE ANSWERING THIS QUESTION!!!
Riley drove home from college traveling an average speed of 65.1 mph and drove back to the college the following week at an average speed of 69.6 mph. If the total round trip took 12 hours, how much time did it take Riley to drive from home back to college? Express the time in hours and minutes. Round to the nearest minute.
(Blank) hours (Blank) minutes
Rules answering these questions:
Explain your answer!
Do not spam answers!
Show your work!
Nonsense answers will be reported and delete your answers.
Thanks!
Answer:
5 hours and 48 minutes
Step-by-step explanation:
The equation for finding average speed is: [tex]\frac{\text{Total Distance}}{\text{Total Time}}[/tex]
Let x represent the distance for both the journey from Riley's college to home and back. We can use one variable to represent this because both distances are the same.
We also know that the total round trip took 12 hours. Let y represent the time it took for Riley to drive from college to home. Therefore the time it takes for Riley to drive from home to college is 12 - y.
Using this information, we can set up a system of equations.
Setting up a System of Equations[tex]65.1=\frac{x}{y}\\\\69.6=\frac{x}{12-y}[/tex]
Multiply both sides of the first equation by "y" and both sides of the second equation by "12 - y".
[tex]65.1y=x\\\\835.2-69.6y=x[/tex]
Since both 65.1y and 835.2-69.6y are equivalent to x, we can set them equal to each other.
[tex]65.1y=835.2-69.6y[/tex]
Now, we have to solve the equation for time or "y".
Solving for Time[tex]65.1y=835.2-69.6y[/tex]
Add 69.6y to both sides
[tex]65.1y+69.6y=835.2[/tex]
[tex]134.7y=835.2[/tex]
Divide both sides by 134.7
[tex]y\approx6.2 $ hours = Six hours Twelve Minutes[/tex]
This is the time it took for Riley to drive from college to home, therefore the time it took for Riley to drive from home back to college is:
[tex]12-6.2=5.8=5$ hours and 48 minutes[/tex]
5 hours and 48 minutes
Ch. 1. Problems 6, 7 & 9
6. The only swimmng pool at a motel is outdoors. It is 5.0 m wide and 12.0 m long. If the weekly
evaporation is 2.35 inches how many gallons of water must be added to the pool if it does not rain? If during the next week the pool still loses two. 35 inches of water to evaporation, even with 20 mm of rainfall, how many liters of water must be added?
Answer:
946 gal
629 gal
Step-by-step explanation:
volume that evaporates = LWH
volume = (5.0 m × 100 cm/m × inch / 2.54 cm) × (12.0 m × 100 cm/m × inch / 2.54 cm) × 2.35 inch
volume = 218,550 in.³
volume = 218,550 in.³ × 1 gal / 231 in.³
volume = 946 gallons
You must add 946 gallons.
The loss to evaporation is 2.35 in.
The amount of rain is 20 mm
The net loss is
2.35 in. × 25.4 mm / inch - 20 mm = 39.69 mm
39.69 mm × 1 inch / 25.4 mm = 1.563 in.
The net loss now is 1.563 in. instead of 2.35 in.
We find the fraction of the the previous loss is the loss with rain and multiply by the previous loss.
1.563/2.35 × 946 gal = 629 gal
With rain, then 629 gallons of water must be added.
The Formula A = 1/2BH can be used to find the area of a triangle. Solve the formula for H, and use your equation to find the height of a triangle with an 90 Cm2 and a base of 15 cm.
can someone help me solve it and figure out how to solve it
Answer: H=2A/B
H=12 cm
Step-by-step explanation:
A = 1/2BH
2A=BH
H=2A/B
H=2(90)/15
H=180/15
H=12 cm
The height of the triangle is 12 cm.
To solve the formula A = (1/2)BH for H, we need to isolate the variable H.
A = (1/2)BH
Multiply both sides of the equation by 2 to eliminate the fraction:
2A = BH
To solve for H, divide both sides of the equation by B:
H = 2A / B
Now we have the formula for H in terms of A and B.
To find the height of a triangle with an area of 90 cm² and a base of 15 cm, we can substitute these values into the formula:
H = 2(90) / 15
H = 180 / 15
H = 12 cm
Therefore, the height of the triangle is 12 cm.
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I need help with my homework
The lengths of the other two sides is 6 inches each.
The perimeter of any figure is sum of all the sides of the figure.
Here, we are given that the area of a triangle is 18 inches. Also, in the figure, we can see that the 3 sides of the triangle are-
6 inches, s inches and s inches.
Therefore, the perimeter of the given triangle will be-
Perimeter = 6 + s + s
⇒ 18 = 6 + s + s
Thus, the equation to find the lengths of the two sides is-
18 = 6 + 2s
18 - 6 = 2s
12 = 2s
2s = 12
s = 12/ 2
s = 6
Thus, the lengths of the other two sides is 6 inches.
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8. A figure has two pairs of parallel sides and four right angles. The figure is
translated 4 units down. How many parallel sides does the image have?
The image would also have two pairs of parallel sides
How many parallel sides does the image have?The given parameters are:
Two pairs of parallel sides Four right angles. Translation down by 4 unitsThe translation transformation is a rigid transformation
This means that, it keeps the orientation that is being transformed
The initial figure has two pairs of parallel sides
Hence, the image would also have two pairs of parallel sides
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the population in Smalltown was 3,187 in 2017 . 148 more people moved to smalltown. in 2018 . 219 more people moved to smalltown . what was the population of smalltown in 2018 ?
Answer:
3080983
Step-by-step explanation:
ihhueuhreuhefhuuufehuefefeh
Solve for F: C=5/9(F-32)
Answer:
F=9/5c+32
Step-by-step explanation:
Multiply both sides by 9/5 to cancel out the 5/9 on the right side of the equation. This gives you:
9/5C = F-32
C=F−32
Then add 32 to both sides, giving you:
9/5C + 32 = F
C+32=F
Thus, you have:
F= 9/5C + 32F=
5
9
C+32
Answer:
[tex]F= \frac{9}{5}C + 32[/tex]
Step-by-step explanation:
Multiply both sides by 9/5 to cancel out the 5/9 on the right side of the equation. This gives you:
[tex]\frac{9}{5}C = F-32[/tex]
Then add 32 to both sides, giving you:
[tex]\frac{9}{5}C + 32 = F[/tex]
Thus, you have:
[tex]F= \frac{9}{5}C + 32[/tex]
State the cardinality of the set.
The set of subsets of {2, 3, 5, 9, 11}
c
ℵ0
32
25
none of these
Answer:
32
Step-by-step explanation:
The given set has 5 elements, meaning it has 2⁵ = 32 subsets.
This means the cardinality of the desired set is 32.
Determine the intercepts of the line. Do not round your answers. y − 6 = 4 ( x + 5 )
Answer:
x = (- [tex]\frac{13}{2}[/tex], 0)
y = (0,26)
Step-by-step explanation:
To find the x-intercept, substitute in 0 for y and solve for x. To find the y-intercept, substitute in 0 for x and solve for y.
In the 1800s psychologists established______
behavior and mental processes.
Answer:
the scientific approach led to the birth of modern psychology in the 1800's as psychologists argued that ideas about human behavior and mental processes should be supported by this. In the 1800's, psychologists established these for the (scientific study of human behavior and mental processes).
Step-by-step explanation:
Jan is saving money to buy a bike. The bike costs $255. She has $120 saved and each week she adds $15 to her savings. Write and solve an equation to find how long will it take her to save enough money to buy the bike.
How many times larger is 8 x 10^5 than 4 x 10^3?
The value 8 x 10^5 is 200 times greater than 4 x 10^3
Scientific notationsThe standard scientific notation is expressed as A * 10^n
where
A is the values between 1 and 10
n is any integer
In order to determine how many times larger is 8 x 10^5 than 4 x 10^3, we will take the ratio;
Ratio = 8 x 10^5/4 * 10^3
Ratio = 8/4 * 10^5/10^3
Ratio = 2 * 10^2
Ratio = 200
Hence the value 8 x 10^5 is 200 times greater than 4 x 10^3
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Which equation best represents the graph shown below? Explain in detail how you arrived at your answer by stating each of the mathematical transformations necessary to produce the graph.
please I need help
In the graph we have a parabola, and its equation is y = (x - 2)^2 - 3
How to find the equation of the graphed function?
In the graph, we can see a parabola.
We only need to identify 3 parts, which are the two x-intercepts (if it has) and the y-intercept.
Remember that if the vertex and the y-intercept. Remember that if the vertex is (h, k) and the leading coefficient is a, then we can write the equation as:
y = a*(x - h)^2 + k
In the image we can see that the vertex is (2, -3), then:
y = a*(x - 2)^2 - 3
And the y-intercept is y = 1, then if we evaluate in x = 0 we should get y = 1, replacing that we get:
1 = a*(0 - 2)^2 - 3
1 = a*4 - 3
1 + 3 = a*4
4/4 = a = 1
Then the quadratic equation is y = (x - 2)^2 - 3
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Two cyclists, 90 miles apart, start riding toward each other at the same time. One cycles 2 times as fast as the
other. If they meet 3 hours later, what' is the speed (in mi/h) of the faster cyclist?
The speed of the faster cyclist is 30 mph.
Two cyclists, distance = 90 miles.
let the speed of one cyclist is = x and
let the speed of the other cyclist = 2x
time after which both the cyclists will meet = 3 hours.
Since they are travelling towards each other the effective speed = 2x ₊ x
= 3x
we know that time = distance/speed
3 = 90/3x
3x = 30
x = 10 mph speed of one cyclist.
speed of the other cyclist will be 3x = 3 × 10 = 30 mph
The speed of the fastest cyclist is 30 mph.
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A cyclist his bike at a speed of 40 kilometers per hour what is this speed in miles? How many miles will the cyclist travel in 5 hours ? In your computations assume that 1 mile is equal to 1.6 kilometers. do not round your answers.
The cyclist cover 200 kilometer in 5 hours and his speed in miles are 25 miles per hour.
According to the statement
We have to find that the speed of the cyclist.
So, For this purpose, we know that the
Speed is the time rate at which an object is moving along a path
From the given information:
A cyclist his bike at a speed of 40 kilometers per hour
Then
The distance he covered in 5 hours = 40*5
The distance he covered in 5 hours = 200.
And then
The speed in miles :
We have given that the 1 mile is equal to 1.6 kilometers
Then
If he covers a 40 kilometers in a hour then
in miles it becomes = 40/1.6
In other words,
Speed in miles = 40/1.6
Speed in miles = 25 miles per hour.
So, The cyclist cover 200 kilometer in 5 hours and his speed in miles are 25 miles per hour.
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can someone help me with this?
The value of the function f(-4) = 16.
What is termed as the function?A function is categorized as a relationship between a set of inputs that each have one output.
A function is an association between inputs in which each input is connected to exactly one output. Each function has a domain as well as a co domain, as well as a range. In general, a function is denoted by f(x), where x is really the input.For the given function in the question;
f(x) = x ² , if x < 0.
f(x) = 0 , if x = 0.
f(x) = 2x + 1 , if x > 0
Now, estimate the values;
(a) f(-4)
As, the value of the x to be substitute is negative, the function used will be.
f(x) = x ² ,for x < 0.
Put the value x = -4
f(-4) = (-4)²
f(-4) = 16
The value of f(-4) = 16.
(b) f(0)
As the value of function is zero.
Then,
f(x) = 0 , if x = 0.
Put x = 0 in function we will get.
f(x) = 0.
(c) f(2)
As the value to be substituted is positive, the function used is;
f(x) = 2x + 1 , if x > 0
Put x = 2
f(2) = 4 + 1
f(2) = 5
Thus, the value of f(2) is 5.
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A patient in therapy jogged 7 km, 2 km, and 4 km. How many miles did that patient jog?
Answer:
7 + 2 + 4 = 13 km
13 km x 0.62 = 8.06
The answer is about 8.06 miles
Step-by-step explanation:
Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!
write an equation that is parallel to y=-5/2x-5
A parallel equation (when graphed) will have the same slope, but a different y-intercept.
As long as you keep y = -[tex]\frac{5}{2}[/tex]x + b, you can input anything for b to solve this question.
Given:
y = -[tex]\frac{5}{2}[/tex]x - 5
Equation of a parallel line:
y = -[tex]\frac{5}{2}[/tex]x + 6, y = -[tex]\frac{5}{2}[/tex]x + 1,356, y = -[tex]\frac{5}{2}[/tex]x - 8, etc
Example answer you can use:
y = -[tex]\frac{5}{2}[/tex]x - 8
Which is the order from least to greatest of the following: seventh fifths, 0.4, one-eighth, seventy-five percent?
A. 0.4, seventy-five percent, seven-fifths, one eighth
B. one-eighth, 0.4, seventy-five percent, seven fifths
C. 0.4, one-eighth, seventy-five percent, seven fifths
D. seventy five percent, one-eighth, 0.4, seven fifths
BTW this is FLVS
The order from least to greatest of the numbers will be B. one eighth, 0.4, seventy five percent, seven fifths.
How to oder the numbers?It should be noted that 7/5 = 1.4
It should be noted that 1/8 = 0.125
It should be noted that 75% = 0.75
Therefore, the ordering of the numbers from least to greatest will be one eighth, 0.4, seventy five percent, seven fifths.
In conclusion, the correct option is B.
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Answer:
b
Step-by-step explanation:
The depth of a local river averages 20 ft, which is represented as |−20|. In January, it measured 6 ft deep, or |−6|, and in July, it was 22 ft, or |−22|. What is the difference between depths in January and July
Answer:
the answer is 16 feet
Step-by-step explanation:
The area of a trapezoid is 145cm2. The height is 10cm and the length of one of the parallel sides is 10cm. Find the length of the second parallel side. Express your answer as a simplified fraction or a decimal rounded to two places
Answer:
19 cm.
Step-by-step explanation:
Area = h(a + b)/2
where h = height, and a and b are parallel sides,
145 = 10(10 + b)/2
290 = 100 + 10b
10b = 190
b = 19 cm.
What is:
2 x 4 + 3 - 8 ÷ 1 x 6 + 4 - 11
Answer:
-44
Step-by-step explanation:
2 x 4 + 3 - 8 ÷ 1 x 6 + 4 - 11=-44
Hope this helps!
Answer:
-44
Step-by-step explanation:
One cubic foot holds7.48 gallons of water, and 1 gallon of water weighs 8.33 pounds. How much dose 6 cubic feet of water weigh in Tons
We can use the concept of unitary method to solve the question.The weight of 6 cubic feet of water is 0.19 Ton.
Unitary method helps us in finding the solution to seemingly complicated problems, here we have been given the amount of water that one cubic foot can hold, first we need to find out how much water 6 cubic feet can hold.
1 cubic foot hols 7.48 gallons of water
6 cubic feet holds 7.48x6 gallons of water=44.88 gallons
Next we know how much 1 gallon of water weighs in pounds,we need to find out how much 44.88 gallons of water weigh in pounds first and then convert it to tons.
1 gallon weighs 8.33 pounds
44.88 gallons weighs 8.33x44.88=373.8504 pounds
1 Ton=2000 pounds
373.8504 pounds=[tex]\frac{373.8504}{2000}[/tex]=0.1869 Ton≈0.19 Ton
Thus we can see that 6 cubic feet of water weighs 0.19 Ton, we used unitary method step by step to reach this result.
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Which ordered pair is a solution to every linear equation of the form y = mx, where m is a real
number?
The ordered pair which is a solution to every linear equation of the form given is; (0, 0).
Which ordered pair is a solution to the linear equation?It follows from the task content that the ordered pair which satisfies the equation of the form y =Mx be determined.
On this note, since the product of any real number, slope in this scenario and 0 is; 0.
Ultimately, it follows that the required ordered pair is; (0, 0) for any real number value of the slope, m.
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QUESTION 8
Simplify 6a+ (-12b) - 9b+8a
O 2a + 3b
O 14a-21b
O2a-21b
O 14a + 3b
After simplification of the given expression, 6a + (-12b) - 9b + 8a the value is (B) 14a - 21b.
What are expressions?An expression is a collection of numbers or variables that have been combined using the operations +, -, × or ÷. Arithmetic expressions consist only of numbers and mathematical operators, whereas algebraic expressions consist of variables, numbers, and mathematical operators.So, 6a + (-12b) - 9b + 8a:
6a + (-12b) - 9b + 8a6a + -12b -9b + 8a6a - 21b + 8a14a - 21bTherefore, after simplification of the given expression, 6a + (-12b) - 9b + 8a the value is (B) 14a - 21b.
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The correct question is given below:
Simplify 6a+ (-12b) - 9b+8a
A. 2a + 3b
B. 14a-21b
C. 2a-21b
D. 14a + 3b
A 5.ft tall man casts a shadow along the ground that is 8 ft. long. At the same time a giraffe casts a shadow that is 12 ft. long. How tall is the Giraffe?
Answer : 7.5 ft
Step-by-step explanation:
when the length of the shadow is 8ft, the actual height of the man = 5ft
8:5
let the giraffe be 'x' ft tall.
if the length of the shadow is 12ft, actual height = x ft
12:x
8:5 x 12:x
[tex]\frac{8}{5}[/tex] × [tex]\frac{12}{x}[/tex]
x= [tex]\frac{15}{2}[/tex]
x=7.5 ft
Therefore, the giraffe is 7.5ft tall.
Answer:
[tex]7.5\; {\rm ft}[/tex].
Step-by-step explanation:
The height of objects nearby under the sun are approximately proportional to the length of their shadows.
In other words, if the man and the giraffe are near each other and under the sun:
[tex]\begin{aligned} \frac{\text{height of man}}{\text{length of shadow of man}} = \frac{\text{height of giraffe}}{\text{length of shadow of giraffe}}\end{aligned}[/tex].
Given that:
[tex](\text{height of man}) = 5\;{\rm ft}[/tex], [tex](\text{length of shadow of man}) = 8\;{\rm ft}[/tex], and [tex](\text{length of shadow of giraffe}) = 12\; {\rm ft}[/tex].Rearrange the equation to find [tex](\text{height of giraffe})[/tex]:
[tex]\begin{aligned} (\text{height of giraffe}) &= (\text{length of shadow of giraffe})\times \frac{\text{height of man}}{\text{length of shadow of man}} \\ &= 12\; {\rm ft} \times \frac{5\; {\rm ft}}{8\; {\rm ft}} \\ &= 7.5\; {\rm ft}\end{aligned}[/tex].
On average, Carmen can drive 33 miles on every gallon of gasoline. If she fills up her tank for $2.29 per gallon, how much will it cost her to drive 429 miles?
Answer:
$29.77
Step-by-step explanation:
First, divide 429 by 33 to find how many gallons that she's paying for, then multiply that by $2.29 to find the answer.
The cost for Carmen to drive 429 miles is $29.77.
What is Proportion?Proportions are defined as the concept where two or more ratios are set to be equal to each other.
Given that,
Distance car travels per gallon = 33 miles per gallon
Cost of gasoline per gallon = $2.29 per gallon.
33 miles can be travelled with 1 gallon of gasoline.
1 mile can be travelled with 1/33 gallon of gasoline.
429 miles can be travelled with 429/33 = 13 gallon of gasoline.
Amount of gasoline needed for 429 miles = 13 gallon.
Cost of gasoline for 1 gallon = $2.29
Cost of gasoline for 13 gallon = 13 × $2.29 = $29.77
Hence it will cost $29.77 for her to drive 429 miles.
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Use the following information to write an equation in terms of X. Then solve the equation and find RS and RT.
RS = 2x - 8
ST = 11
RT = x + 10
equation:?
x=?
RS=
RT=
We get the values of RS and RT as 6 and 17 respectively after solving the equations.
We are given the equations:
RS = 2x - 8
ST = 11
RT = x + 10
Now, we know that:
RS + ST = RT.
Substituting the values, we get that:
2 x - 8 + 11 = x + 10
2 x + 3 = x + 10
2 x - x = 10 - 3
x = 7
Now substituting it to find RS and RT:
RS = 2 x - 8
RS = 2 ( 7 ) - 8
RS = 14 - 8
RS = 6
RT = x + 10
RT = 7 + 10
RT = 17
Therefore, we get the values of RS and RT as 6 and 17 respectively after solving the equations.
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