Which expression is a sum of cubes? 0-24a15 +125018
-64a27 +08
O
- 3x + 6
81X4+ + By
8y40

This would be C because 27 and 1 are the only factors that can be cubed (remember, when there is no number, 1 is represented)

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