3 years ago

True or false the image of the point (-8,-5) under a reflection across the y-axis is (8,-5)

Mathematics

1 answer:

kakasveta [241]3 years ago

7 0

False. A reflection over the y-axis would result in: (-8,5)

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F(x) = x2 + 10<br> What is the average rate of chan<br> hange of f over the interval [-2, -1]?

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The average rate of change is given by [f(b) - f(a)]/(b - a), where a and b represent the interval [a, b].

Let a = -2

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2 years ago

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gayaneshka [121]

Answer:

0.13 ft/min

Step-by-step explanation:

We are given that

$\frac{dV}{dt}=15ft^3/min$

We have to find the increasing rate of change of height of pile when the pile is 12 ft high.

Let d be the diameter of pile

Height of pile=h

d=h

Radius of pile,r= $\frac{d}{2}=\frac{h}{2}$

Volume of pile= $\frac{1}{3}\pi r^2 h=\frac{1}{12}\pi h^3$

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Substitute the values

$15=\frac{1}{4}\pi(12)^2\frac{dh}{dt}$

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2 years ago

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