14. A rectangular dog pen is 6 feet longer than the width. The perimeter of the pen is 48 ft. Find the length and the width of the pen.

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

where is the diagram? shown below where? ?

step-by-step explanation:

c-   36

taxicab circle radius 9 has 4(9) = 36 points