13. the area of a rectangle is 991 cm². if 991
is a prime number, what are the whole
num...
![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 07.09.2019 19:10, Kameon
13. the area of a rectangle is 991 cm². if 991
is a prime number, what are the whole
number dimensions of the rectangle?
explain your reasoning.
![answer](/tpl/images/cats/otvet.png)
Answers: 3
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If p(x) is the total value of the production when there are x workers in a plant, then the average productivity of the workforce at the plant is a(x) = p(x) x . (a) find a'(x). a'(x) = xp'(x) − p(x) x a'(x) = xp'(x) − p(x) x2 a'(x) = p'(x) − p(x) x a'(x) = xp'(x) − p'(x) x2 a'(x) = p'(x) − xp(x) x2 why does the company want to hire more workers if a'(x) > 0? a'(x) > 0 ⇒ a(x) is ; that is, the average productivity as the size of the workforce increases. (b) if p'(x) is greater than the average productivity, which of the following must be true? p'(x) − xp(x) > 0 p'(x) − xp(x) < 0 xp'(x) − p'(x) > 0 xp'(x) − p(x) < 0 xp'(x) − p(x) > 0
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![image](/tpl/images/cats/mat.png)
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