Volume & Surface Area: Question 5
The Cotton family purchase a glass sculpture in the shape of a
rectangular pyramid. The base measures 7.5 inches by 5 inches. If
the volume of the sculpture is 75 cubic inches, what is the height of
the pyramid, in inches?
Select one:
inches
15 inches
Oo oo
2 inches
37.5 inches

y/x=18

step-by-step explanation:

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation:

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).