SOLUTION: The total profit is defined as total revenue, R(x), minus total cost C(x), and is given by the function P(x)=R(x)-C(x). Given R(x)=59x-0.4x^2 and C(x)=3x+13, Find each of the follo

Algebra ->  Finance -> SOLUTION: The total profit is defined as total revenue, R(x), minus total cost C(x), and is given by the function P(x)=R(x)-C(x). Given R(x)=59x-0.4x^2 and C(x)=3x+13, Find each of the follo      Log On


   

Question 1037014: The total profit is defined as total revenue, R(x), minus total cost C(x), and is given by the function P(x)=R(x)-C(x). Given R(x)=59x-0.4x^2 and C(x)=3x+13, Find each of the following:
a). P(x)
b). R(90), C(90), and P(90)
*have to use graphing calculator and I dont have one so i need the answer

Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
P%28x%29=59x-0.4x%5E2-%283x%2B13%29

P%28x%29=59x-0.4x%5E2-3x-13
highlight%28P%28x%29=-0.4x%5E2%2B56x-13%29-----if you want in its general form.

Let x=90 and evaluate R, C, and P. You can do all of that without a graphing calculator. You might use Google as an alternative. Just type into the search field, y=-0.4x^2+56x-13, and drag inside the graph to what you want.