Answer:
D
Step-by-step explanation: I just took the test on edge
Given that:
c(x) = 3x2 − 10x + 200<span>
and
r(x)=</span><span>−2x2 + 100x + 50
Profit is given by:
P(x)=r(x)-c(x)
P(x)=(</span>−2x2 + 100x + 50)-(3x2 − 10x + 200)
P(x)=-5x^2+110x-150
thus:
at maximum profit P'(x)=0
thus:
P'(x)=-10x+110=0
hence:
x=11
thus the number of units required for one to make profit is 11 units
The answer is 110. (Brainly isn't letting me use 'enter', I don't know why) Basically you can cross multiply to get 990 = 9x. Divide both sides by 9 to get 110. Or you can just scale up by multiplying the fraction on the left side by 10/10 to get 90/110. I hope I helped! If it did, feel free to give me a 'brainliest answer'.
Answer:
15.48
Step-by-step explanation:
When we divide 6.45 by 10, we get 0.645 so, we know that is the rate per 0.1 pound. We multiply 6.45 by 2 to get 12.9 and add 0.645 four times since it is 2.4 pounds and get 15.48.
