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soldier1979 [14.2K]
3 years ago
15

The cup was filled at a constant rate. It started empty. After 2 seconds, it held 70 cm^3 of water.

Mathematics
1 answer:
nydimaria [60]3 years ago
8 0

Answer:

About 90%

Step-by-step explanation:

If the cup was filled at a constant rate, then the cup fills at 70/2=35 cubic centimeters per second. The formula for the volume of a cone is \frac{1}{3} \pi r^2 h, or in this case \frac{112}{3}\pi cubic centimeters. After 3 seconds, the cup would have 35*3=105 cubic centimeters of water inside of it, or about 89.52% which rounds to 90%. Hope this helps!

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photoshop1234 [79]

Answer:

Hi!

Alrighty here we go:

2(9+x)=-5(4-x)

18+2x=-20+5x

Now combine like terms

+20+18+2x=-20+20+5x

38+2x=5x

38+2x-2x=5x-2x

38=3x

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Hope this helped!

8 0
2 years ago
Explain how an estimate help you to place the decimal point when multiplying 3.9x5.3?
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3 years ago
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balandron [24]

Answer:

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Step-by-step explanation:

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2 years ago
Calculate the area of the regular pentagon below:
djverab [1.8K]
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Answer:

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8 0
2 years ago
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