2 years ago

John took a quiz and got 42 out of 50. What is amount in decimals and percentages

Mathematics

1 answer:

Norma-Jean [14]2 years ago

8 0

Answer:

0.84, 84%

Step-by-step explanation:

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The total volume is the sum of volume of cone and volume of cylinder.

Volume of cylinder = πr²h
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So, volume of cylinder equals:

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Volume of cone = $\frac{1}{3} \pi r^{2}h$
π = 3.14
r = 2 mm
h = 3 mm

So, volume of cylinder equals:

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Thus, total volume of the figure = 25.12 + 18.84 = 43.96 mm³

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