If A=38x-x^2 then
dA/dx=38-2x
d2A/dx2=-2
Since the acceleration, d2A/dx2 is a constant negative, when velocity, dA/dx=0, it will be an absolute maximum for A(x)
dA/dx=0 only when 38=2x, x=19
A(19)=38(19)-19^2
A(19)=722-361
A(19)=361 ft^2
So the maximum possible area is 361 ft^2
(This will always be true as the maximum possible area enclosed by a given amount of material will always be a perfect square...)
The answer is 3.2 as a decimal. In mixed for it is 3 1/5 and in simplest form it is 16/15
Answer:
74.32
Step-by-step explanation:
Add the two together, and you have your answer b/c it's asking for the total length of the line
90 ÷ 2 is the same as 1/2 of 90.
Either way you get 45.
Answer:
The second one.
Step-by-step explanation:
Because adding x by anything is 0 since you dont have any other numbers.
