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3 years ago

Pete needs to install a circular window with a radius of 7.25 inches. Which is the closest to the amount of glass he will need?

Mathematics

2 answers:

NeTakaya3 years ago

8 0

Answer:

C) 45.53in cubed.

Step-by-step explanation:

One formula for finding circumference is C=r2(pi).

So, if you plug in the numbers,

= C=7.25(2)(3.14)

= C=14.5(3.14)

= C=45.53

So, the answer is 45.53in cubed after multiplying all of the numbers.

Hope this helps :)

(I'm not sure if it's right though because the answer is cubed.)

katrin [286]3 years ago

7 0

Answer:

)165.05

Step-by-step explanation:

7.25²=52.56

52.56*3.14=165.05

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3 years ago

Matthew made slightly larger blanket that was 8 Ft long. Its area is 64 sq ft what is its perimeter?

Andreas93 [3]

Answer:

32 ft

Step-by-step explanation:

Given data

Length= 8ft

Area= 64 f^2

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64= 8* Width

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3 years ago

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Sergio [31]

Answer:

(m−5)(2m−2)

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3 years ago

Which line is parallel to the line<br> shown below?

Travka [436]

<h3>Answer: Choice D</h3>

4x - 3y = 15

====================================================

Explanation:

The two points (-1,-1) and (2,3) are marked on the line

Let's find the slope of the line through those two points.

$(x_1,y_1) = (-1,-1) \text{ and } (x_2,y_2) = (2,3)\\\\m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}\\\\m = \frac{3 - (-1)}{2 - (-1)}\\\\m = \frac{3 + 1}{2 + 1}\\\\m = \frac{4}{3}\\\\$

The slope is 4/3 meaning we go up 4 and to the right 3.

-------------

Parallel lines have equal slopes, but different y intercepts. We'll need to see which of the four answer choices have a slope of 4/3.

Solve the equation in choice A for y. The goal is to get it into y = mx+b form so we can determine the slope m.

$3x + 4y = -4\\\\4y = -3x-4\\\\y = -\frac{3}{4}x-\frac{4}{4}\\\\y = -\frac{3}{4}x-1$

Equation A has a slope of -3/4 and not 4/3 like we want.

Therefore, this answer choice is crossed off the list.

Follow similar steps for choices B through D. I'll show the slopes of each so you can check your work.

slope of equation B is 3/4
slope of equation C is -4/3
slope of equation D is 4/3

We have a match with equation D. Therefore, the equation 4x-3y = 15 is parallel to the given line shown in the graph.

You can use graphing tools like Desmos or GeoGebra to confirm the answer.

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1 year ago

For the data below what is the outlier? 46, 39, 61, 38, 50, 65, 60, 45, 64, 55

Lubov Fominskaja [6]

The first 3 choices are not outliers, so the answer is D.

8 0

3 years ago

Read 2 more answers