What is the solution for x in the given equation? square root 9x+7 + square root 2x=7 i wrote the words square root because i cant give the symbols. a.) x = 18 and x = 2 b.) x = 18 c.) x = 2 d.) x = 18 and x = -2

answer: howdy

step-by-step explanation:

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204