Arectangular swimming pool is represented by x as the width and one less than twice the width as the length. if the area of the swimming pool is given by 28 sq. ft., which equation could be used to model the area of swimming pool?

a) 28 = 2x-1•x

b) 28x = 2x -1

c) 28 = (2x-1) + (x)

d) 28 = (2x - 1) (x)

Option D.

Step-by-step explanation:

Let

x ----> the width of the rectangular swimming pool in feet

y ----> the length of the rectangular swimming pool in feet

we know that

the area of the  rectangular swimming pool is equal to

we have

so

-----> equation A

---> equation B

substitute equation B in equation A

step-by-step explanation:

i found the koficent of the linear function and i foun c acordind to the strict formula y=kx+c and then i took 2 as an x and replacet it on the formula i found and then foun the y

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.