Find the common ratio: 4, -16, 64, -256, ...​

you multiply by -4 each time.

Step-by-step explanation:

4 x -4= -16

-16 x -4 = 64

64 x -4 = -256

hope this helps

-4

Step-by-step explanation:

Trust me bro

i think this could be a possible answer (1 / 84) -1

good luck! : d

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