What is the inverse of the function y=x^2 - 12

Interchange the variables and solve for y

inverse = y = ±√x+12

Step-by-step explanation:

y=x^2-12 becomes x=y^2-12

x+12=y^2

±√x+12=y

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk