Which expression is equivalent to 5× + 2 - × + 10

4x + 12

Step-by-step explanation:

If we simply we get this expression we get

5x + 2 - x + 10 = 4x + 12

4x + 12 is also an expression and it has the same result as the one show in the question, and this is why it is the right answer.

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