Jamie just got a new square pool in his backyard. One side measures 7 feet long.
What is the area of his pool?

49 square unit

Step-by-step explanation:

its a square thus all sides are equal

area = side × side

7×7

49square unit

28

Step-by-step explanation:

its 7 ft long and it's a square squares have equal sides so 7 × 4 is 28

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