The length of a swimming pool is 8 m longer than it's width and the area is 105m²

Below

Step-by-step explanation:

The area of the swimming pool is

● A = L × w    where L is the length and w is the width

The length is 8 m more than the width L = w + 8

● A = (w+8)×w

● A = w^2 +8w

● 105 = w^2 + 8w

● w^2 + 8w - 105 = 0

This is a quadratic equation.

We will solve by graphing it using a graphing tool

The solutions are the intersection points with the x-axis

We will only take the positive solution since the width can't be negative.

The solution is 7 (picture below)

● w = 7 m

The length is

● L = w + 8

● L = 7 + 8

● L = 15 m

d? maybe

step-by-step explanation:

just take the area of the square and then the area of the circle then subtract the circle area from the squares area

step-by-step explanation: