A financial analyst determined that the cost, in thousands of dollars, of producing bicycle frames is C = 0.000025f^2 - 0.04f + 40, where f is the number
of frames produced
a. Find the number of frames that minimizes cost.
b. What is the total cost for that number of frames?

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.