It takes 1.2 minutes to clean a window how long to clean 24378?

29253.6 minutes

Step-by-step explanation:

If it takes 1.2 minutes to clean a window,

Then to find the minutes require to clean 24378 windows, we multiply 1.2 by 24378

This implies

dont think so

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