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Alekssandra [29.7K]

3 years ago

8

Water rushes over Niagara falls at the rate of 180 million cubic feet every 30 minutes. How much water goes over the falls in 1

minute?

1 answer:

Nadusha1986 [10]3 years ago

5 0

Answer:

180'000'000/30 = 6'000'000 ft³

Step-by-step explanation:

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Evaluating integral by net area

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The graph of $g(x)=\sqrt{64-x^2}$ is the upper half of a circle with radius $\sqrt{64}=8$ . It's symmetric about $x=0$ , so on the interval [0, 8], we're considering a quarter of the circle. The area of such a sector is $\frac{\pi 8^2}4=16\pi$ .

Then use the fact that the definite integral is distributive over sums, meaning

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Step-by-step explanation:

Total students = 82+74+96+99 =351

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(Total earnings) ÷ (Total students )

= $5662.15÷ 351

= $16.13

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