So... notice the picture below, that's P(x)
so

so.. when the quantity is

, is when the profit

is the highest
after that, as you can see from the graph, it goes back down
Answer:
(-0.4)²
= -0.4×-0.4
product of two negative numbers is positive
so, 0.4×0.4
=4/10×4/10
=16/100
=0.16
C. 9x is keyword (m=slope which is 9)
A. has slope of 1/4
B. has slope of 7/3
D. has slope of 6
Therefore, C. has the highest slope.
Answer:

Step-by-step explanation:
all you have to do is multiply 3/4 and 8 to get 6
Answer: 
This the expression -3*sqrt(3) or "-3 times the square root of 3"
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Work Shown:
Factor each term inside the square root so that a perfect square is one of the pieces. Then break up the roots and simplify as shown below.






