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Lera25 [3.4K]
3 years ago
9

Please help: Find the volume of the solid. Use 3.14 for π.

Mathematics
1 answer:
kenny6666 [7]3 years ago
6 0

Answer:

3391.2

Step-by-step explanation:

The formula for the volume of a cylinder is

pi * r^2 * h

Plugging the values in we get

3.14 * 6^2 * 30

= 3.14 * 36 * 30

= 3391.2

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8 0
3 years ago
If a rectangle is rotated about the y-axis as shown below, what three-dimensional figure would be formed?
Xelga [282]

Answer:

Cylinder.  The explanation is not very exact, more intuition and whatnot, so let me know if there was anything you did not understand.  

Step-by-step explanation:

This is assuming the rectangle has its sides parallel with the x and y axes.  

Let's try to eliminate them one by one.  A cone does not seem likely since it has slanted sides, and spinning the two straight sides will keep the sides straight.  This can be used for the pyramid as well.  Let me know if this doesn't make sense though.

Now for me I would imagine that rectangle being a sheet of paper, or metal.  if you set that sheet atop some dirt or something and then rotated it, what shape would be drawn into the material?  It would be a circle.  So we know the 3d shapewill have a base of a circle, which leaves us with a cylinder.  Again, let me know if this method did not make sense.  

5 0
3 years ago
Joan buys cans of beans in bulk. She buys 3 cases of beans for a total of $23.15. Each case contains 6 cans of beans. Complete e
Harman [31]
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8 0
3 years ago
Simplify expression 2g +3(g+5)
Sophie [7]

Answer:

5g+15

Step-by-step explanation:

To solve this question, we will first expand the expression using the distributive rule: x(y+z)=xy+xz

Therefore:

2g+3(g+5)=2g+3*g+3*5

Simplify:

2g+3g+15

Add up like terms:

5g+15

6 0
4 years ago
Read 2 more answers
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35 :) If you change the percent into a decimal (0.70) and multiply that by 50, you will get the answer!
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3 years ago
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