Answer:
2571.14
in terms of pi: 818.83
Step-by-step explanation:
(D) -3w2<span> - 9w - 4
I hope this helped :)
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Answer:

Step-by-step explanation:
Expression for the rectangular area and perimeter are, respectively:


After some algebraic manipulation, area expression can be reduce to an one-variable form:


The first derivative of the previous equation is:

Let the expression be equalized to zero:


The second derivative is:

According to the Second Derivative Test, the critical value found in previous steps is a maximum. Then:

The maximum area is:


H= 52 + 21d
D=5, h= 157
D=7, h= 199
D=8, h= 220
D=10, h= 262
Answer: -4
Step-by-step explanation: well when it’s absolute value the -5 turns to positive 5 and the value of -9 turns to positive 9. So that leaves 5-9=-4