Answer:
Explanation:
P = 2(W + L)
L = 2x - 3
W = x + 4
P = 2[(x + 4) + (2x - 3)]
So thats the expression for the perimeter
The Solution:
Given:

Required:
To write the given equation in the form below:

Clearly, the given equation is already in the required form.
The parameters are:
Answer:
x = - 9, x = 0, x = 7
Step-by-step explanation:
Given
x(x - 7)(x + 9) = 0 ← in standard form
Equate each factor to zero and solve for x
x = 0 ⇒ x = 0
x - 7 = 0 ⇒ x = 7
x + 9 = 0 ⇒ x = - 9
The distance from 7 to 0 is 7 because the absolute value of 7 is 7.
Correct Answer: A