The first and the 2nd one are correct because x is 21 and y is 49
3 and 4 at wrong
Answer:
Step-by-step explanation:
To find the inverse of a function you take it in y=f(x) form, switch x and y and then solve for the new y.
So I'll do the first one.
f(x) = 8x-10
y=8x-10 Now switch x and y
x = 8y-10 Now solve for y.
x+10=8y
(x+10)/8 = y
g(x) is not that, so it is not the inverse. Can you figure out the second one?
Answer:
y=63
x=63
z=72
Step-by-step explanation:
Answer:
17.5 Liters
Step-by-step explanation:
I got it right on a test so I hope this helps you!