Answer:
f^-1(x) = (x² + 21)/7
Step-by-step explanation:
Since f(x) = y = √(7x – 21), to find the inverse of f(x) we have to write x in terms of y in order to make x the dependent variable and y the independent variable. The steps involved are:
Step 1: square both sides of the equation, y = √(7x – 21). Doing that, we have:
y² = 7x – 21
Step 2: Add 21 to both sides of the resulting equation. Doing that, we have:
y² + 21 = 7x
Step 3: Divide both sides of the equation by 7. Doing that we have:
x = (y² + 21)/7
Step 4: Replace x with f^-1(x) and y with x. Doing that, we have:
f^-1(x) = (x² + 21)/7
Answer:
600ft
Step-by-step explanation:
750 - 375 + 225 = 600
Answer:
2.8 miles
Step-by-step explanation:
brian runs 7 miles in 60 minutes at the same rate how many miles would he run in 24 minutes?
(24/60)*7=2.8 miles
Answer:
DONDODA
Step-by-step explanation:
(2n)^4 = (2n)(2n)(2n)(2n)
(2n)(2n)(2n)(2n) is your answer
hope this helps
