Find the sales tax....
1 answer:
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Answer:
The simplified expression is:
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Step-by-step explanation:
Given expression:
To simplify the given expression.
Solution:
In order to simplify, we will combine the like terms by removing the parenthesis.
We have:
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Combining like terms.
⇒
⇒
In order to combine fractions, we will combine the whole number and the fraction separately.
⇒
⇒
Thus, the simplified expression is:
⇒
The balloon has a volume dependent on its radius
:
Differentiating with respect to time gives
If the volume is increasing at a rate of 10 cubic m/s, then at the moment the radius is 3 m, it is increasing at a rate of
The surface area of the balloon is
and differentiating gives
so that at the moment the radius is 3 m, its area is increasing at a rate of