The cost for a company to produce x smartphones can be modeled by c(x)= 2x+35 and the company's total profit after selling x smartphones can be modeled by p(x)= -x^2+120x-435. which function below represents the company's revenue for selling smartphones? ( recall that profit equals revenue minus cost) a) r(x)= -x^2+122x-400 b) r(x)= -x^2+118x-470 c) r(x)= -x^2+122x-470 d) r(x)= -x^2+122x+400

A

Step-by-step explanation:

We know Profit = Revenue - Cost

Cost (C(x)) is given as C(x) = 2x+35, and

Profit (P(x)) is given as P(x)=

Substituting Profit function and cost function into the first equation and solving for Revenue:

Answer choice A is right.

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10