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Ostrovityanka [42]
3 years ago
12

Estimate how many tennis balls can fit into a small room

Mathematics
1 answer:
gavmur [86]3 years ago
4 0

a tennis ball has a diameter of about 2.5 inches

 so volume of a tennis ball is: 4/3 x pi x r^3 = 8.2 cubic inches ( estimating you could say 8 cubic inches

 1 cubic foot = 1728 cubic inches

 so you could fit 1728/8 = 216 tennis balls in a cubic foot.( estimated)

 you would then need to calculate the volume of the room

lets say a small room is 9 foo by 9 foot by 8 feet high

 9 x 9 x 8 = 648 square feet

 now multiply the 216 by the square feet of the room

216 * 648 = 139,968tennis balls

 now because they are round, there will be empty space around them

 so you could estimate about 139,000 tennis balls would fit I a 9 x 9 room that is 8 feet high.


 You didn't give the dimensions of the room, but this gives you the idea of how to estimate

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Y=-x+7 find x intercept
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Answer:

The x-intercept=7

Step-by-step explanation:

Step 1

Given the equation;

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Step 2

The x-intercept is the value of x when the graph crosses the x-axis. At this point, the value of y=0

Step 3

Substitute the value of y in the linear equation above to solve for the x-intercept.

Given;

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3 years ago
tennis balls with a diameter of 2.5in are sold in cans of three. the can is a cylender. what is the volume of the area not occup
mina [271]

Answer:

The volume of the area not occupied by the tennis balls is 12.28 cubic inches.

Step-by-step explanation:

It is given that tennis balls with a diameter of 2.5in are sold in cans of three. the can is a cylinder.

Radius of ball = Radius of can = \frac{2.5}{2}=1.25

Height of can = 2.5\times 3=7.5

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The volume of a tennis balls is

V=\dfrac{4}{3}\pi (1.25)^3

V=8.18123

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V_2=36.81553

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The volume of the area not occupied by the tennis balls is

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Therefore, the volume of the area not occupied by the tennis balls is 12.28 cubic inches.

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3 years ago
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Answer:

I got

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Answer:

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