Answer:
we plot first the data and find the equation. The equation is c(x) = 7x2 - 3x + 5. when x is equal to 5, then c(x) is equal to $165
Step-by-step explanation:
Length=x
Width=4x
4x•x=400 sq cm
x= 10 cm
4x= 40 cm
P=2•10cm+2•40 cm
=100 cm
The answer is R= {-7, 1, 9, 17}. All you have to do is plug in the numbers (the domain) into the equation.
What the question and read the problem again please
Answer: 20
Step-by-step explanation: because 3+17=20