Question

R(x) = 150 (x2 + 1) gives the monthly revenue in millions x months after an ad campaign. In how many months will the revenue be 30 million? A) 2 months B) 4 months C) 6 months D) 8 months

Answer 1

d.8 months i hope it help

Answer 2

A) 2 months

Explanation:

Given the revenue as a function of the time in months, to make 30 million in revenue, the function will be equated to the amount and then solved for x which is the number of months.

As such, if the revenue function is

R(x) = 150/(x2 + 1)

Then

R(x) = 150/(x2 + 1) = 30

(x2 + 1) = 150/30

x2 + 1 = 5

x2 = 4

x = √4

x = 2

it will take 2 months to generate 30 million