Which expressions represent 8 divided by the sum of 3 and 1? Check all that are true.
1) (8 = 3) + 1
- O 8 = (3 + 1)
-O (3+1)
o 8 ÷ 3+1
8/(3+1)

Mine says put multiple

you probably already have the answer but anyways it's b. 15.0

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

i dont know

step-by-step explanation:

umm. i dont know