The shelby university rose garden is a rectangular shape with an area of 192 square feet. the dimensions of the garden are x^2 feet wide by x^2– 61 feet long. how wide is the garden?
a. 3 feet c. 64 feet
b. 8 feet d. 131 feet

both equations and proportions are better.

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

hard

step-by-step explanation: