2 years ago

Help will mark brainliest............

Mathematics

1 answer:

Nataliya [291]2 years ago

7 0

The answer is 90, Because angle D is a 90 degree angle, and 180- 90=90, so the answer is 90.

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the answer is B

Step-by-step explanation:

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pochemuha

Answer:

V'(t) = $-250(1 - \frac{1}{40}t)$

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Step-by-step explanation:

Given:

V = $5000(1 - \frac{1}{40}t )^2$ , where 0≤t≤40.

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We have to use the chain rule to find the derivative.

V'(t) = $2(5000)(1 - \frac{1}{40} t)d/dt (1 - \frac{1}{40}t )$

V'(t) = $2(5000)(1 - \frac{1}{40} t)(-\frac{1}{40} )$

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If we know the time, we can plug in the value for "t" and find how much water drained for the given point of t.

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3 years ago

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1 year ago