Saini Sprinkler Company installs irrigation systems. To track monthly costs C and revenues R, they use the following functions, where x is the number of systems they install. R(x)=8x^2+12x+4

C(x)=7x^2+20x-12

The monthly profit can be found by subtracting cost from revenue.

P(x)=R(x)-C(x)

Find a function to project monthly profit and then use it to find the break-even point where the profit is zero.

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true