Answer:
see I need help for chemistry pls anyone here helps me I must submit before 10:30
Answer:
145
Step-by-step explanation:
Answer:





Step-by-step explanation:
Given

Required
Equivalent expressions
No option were given; So, I will list out some possible equivalent expressions.
Using distributive property:

So, we have:

----- (1)
Another:


Another:


Another:


Another:


To determine the maxima and minima of the polynomial, differentiate the given based on x and equate to 0.
C(x) = 400x - 0.2x²
dC(x) / dt = 400 - 0.4 x = 0
The value of x is 1000. This is the value of the maxima. As the value of C(x) continously becomes lesser as the value of x is set higher, the minima is not identified. Substitute x to the original equation,
C(x) = (400)(1000) - 0.2(1000²) = $ 200,000
Thus, the answer is letter B.