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3 years ago

9

rew wants to build a square sandbox with an area of 324 square feet. What is the total length of wood Drew needs to make the sid

es of the sandbox?

1 answer:

ale4655 [162]3 years ago

4 0

Answer: 44

Step-by-step explanation:

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The volume of a box of soup broth is 972 cubic centimeters. The box is 20 centimeters high and 10.8 centimeters long. How wide i

Naddik [55]

V=l*w*h
972=20*10.8*w
972=216w
w=4.5

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3 years ago

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A triangle with vertices A(0,0), B(6,0), and C(0,9) is rotated 360 about the y-axis. What is the volume of the figure?

Luden [163]

Given:

A triangle with vertices A(0,0), B(6,0), and C(0,9) is rotated 360 about the y-axis.

To find:

The volume of the figure.

Solution:

Points A(0,0) and C(0,9) lies on the y-axis. Length of AC is 9 units.

Points A(0,0) and B(6,0) lies on the x-axis. Length of AB is 6 units.

If a triangle with vertices A(0,0), B(6,0), and C(0,9) is rotated 360 about the y-axis, then it will form a cone with radius 6 units and height 9 units.

Volume of a cone is

$V=\dfrac{1}{3}\pi r^2h$

where, r is radius of the base and h is vertical height of the cone.

Putting r=6 and h=9, we get

$V=\dfrac{1}{3}\pi (6)^2(9)$

$V=\pi (36)(3)$

$V=108\pi$

Therefore, the volume of the figure is $108\pi$ sq. units.

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3 years ago

What what is the mean of the cars

tatuchka [14]

Mean is the average. to find mean, you add all the numbers and divide it by how many numbers there are.

68 + 75 + 85 + 80 + 75 + 82 = 465

There are 6 numbers. That means you have to divide 465 by 6 to get the mean.

Divide:

465 / 6 = 77.5

The answer is D. 77.5

Hope this helped☺☺

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3 years ago

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Write an expression for the sequence of operations described below.

Lemur [1.5K]

This might look hard at first, but if you break it down into parts, it will be much easier. With that said, start with what you know. You see that the word problem says "the difference of y and 9", which means that you have to stubtract them. So, part of the equation is going to be y - 9. Now to look at the rest of the word problem. It says to divide by 3, so now you have to take what you have so far and divide that by 3. This means that you are going to have to divide the y - 9 by 3.

Your answer should be:
y - 9 / 3

***** Note: The slash means division. *************************************

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3 years ago

210 students were asked whether they want to go to a water park or a roller skating rink for a class party.

Brrunno [24]

Answer:

60.3

Step-by-step explanation:

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3 years ago