3 years ago

Find the area of a circle with radius 86cm give your answer rounded to 3 SF

Mathematics

1 answer:

natta225 [31]3 years ago

6 0

Area = r^2*pi
A= 23,235.22

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Ariel is filling a giant ball with air. The radius of the beach is 30cm. What is the volume of air that the beach ball will hold

Harman [31]

Answer:

The volume of the air that the beach ball will hold is 113,142.85 cm³.

Step-by-step explanation:

Sphere:

It is a three dimension shape.
It has a center.
Volume= $\frac43 \pi r^3$ , r is the radius of it.
Surface area= 4πr².

Given that,

Ariel is filling a giant ball with air.

The ball is sphere in shape.

The volume of air = The volume of the ball.

The radius of the beach ball is 30 cm.

The volume of the ball is $\frac 43 \pi r^3$

$=\frac43 \pi (30)^3$ cm³

=36,000π cm³

=113,142.85 cm³

The volume of the air that the beach ball will hold is 113,142.85 cm³.

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3 years ago

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Salsk061 [2.6K]

5. The easiest way to determine this is to count the number of zeroes, though this only works for base 10.

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4 years ago

Taryn mows 9 lawns for 7.5 hours and gets paid 112.50. How much does he get paid for mowing 1 lawn

Verdich [7]

112.50=9x
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3 years ago

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vovikov84 [41]

Answer:

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Step-by-step explanation:

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The values in the y column increase by 4 each time.

Therefore, the slope of your equation should be 4.

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3 years ago

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