A manufacturer incurs the following costs in producing x water ski vests in one​ day, for 0 Required:
a. What is the average cost per vest if x vests are produced in one day?
b. Find the critical values of c(x), the intervals on which the average cost per vest is decreasing, the intervals on which the average cost per vest is increasing, and the local extrema.

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answer: 88

step-by-step explanation:

the answer is 8/21

hope this

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh