Solve each equation for x.
1. x2 – 11 = 25

x=18

Step-by-step explanation:

assuming x2 is meant to be 2x

2x-11=25

add 11

2x=36

x=18

theres no picture: /

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