Answer:
-4
Step-by-step explanation:
Answer:
B. 
Step-by-step explanation:
To find the inverse of a function/equation:
- Replace f(x) with y: y=5x+4
- Switch x and y: x=5y+4
- Solve for y: x-4=5y ->

- Write in standard inverse notation:

I hope this helps!!
gl!
Answer:
L=80
W=20
Step-by-step explanation:
Perimeter = 2×L+2×w
L=w+60
Perimeter - 2×60 = 4×w
200-120 = 80
80/4= w = 20
L=w+60 = 80
Answer:
yes
Step-by-step explanation:
You just have to arrange the equation such that the p is the only term at the left hand side of the equation. Express it in terms of r and m.
r = 1/2*m²*p
Divide both left and right hand side equations by 1/2*m²
p = r/(1/2 *m²)
Take the reciprocal of 1/2 and multiply it. The final answer is:
p = 2r/m²