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jek_recluse [69]
2 years ago
11

I need help with this

Mathematics
1 answer:
Leno4ka [110]2 years ago
6 0

Answer:

756pi  unit^3.

Step-by-step explanation:

This is the sum of the volume of 3 spheres

V of a sphere = 4/3 pi r^3, so we have:

4/3 pi 2^3 + 4/3 pi 6^3 + 4/3 pi 7^3

= 4/3pi (2^3 + 6^3 + 7^3)

= 756pi.

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Answer:

About 20%

Step-by-step explanation:

The probability of a point on the un-shaded region will be given by;

Area of the shaded region/total area

Considering that the circles are of the same size, then the length of the square is 2d

Area of the square = 4d²

Area of the shaded = (4d² -4π(d/2)²

                                = 4d² -πd², but π = 22/7

                                = 6/7d²

Probability = (6/7d² ÷ 4d²) × 100%

                  = (6/28 d²) × 100%

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Therefore; the answer is about 20%

3 0
2 years ago
A 16 ft monument consists of a rectangular prism and a square pyramid, as shown below. If the exposed surfaces of the monument a
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Answer and Step-by-step explanation:

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1 square with area 36.

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A proof should always begin with stating the given information.<br> True<br> False
const2013 [10]
<span>A proof should always begin with stating the given information.
True</span>
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