If a piece of ribbon is 5 and 1 over 2 feet long, how long is it in inches?

don't know sorry bru

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

answer: #1 ads up by 8 and i don't know #2

0

step-by-step explanation:

equals the constant of proportionality.

solve for