B. 4
3n - (2 + n)
3(4) - (2 + 4)
12-6
=6
Answer:
a) 24
b) f^-1 = 
c) 3
Step-by-step explanation:
Just plug the numbers in for x:
(5)^2 -1 = 24
Switch x and y then solve for y and replace y with f^-1(x):
x = y^2 -1
sqrt(x +1) = y = f^-1(x)
Now plug in 8:
f^-1(x) = sqrt(8 +1) = 3
Answer:
Karen (and Devante) walked x feet. They will be toguether after walking 115 feet each.
Step-by-step explanation:
I will assume that you want to know how much karen was walked towards Devante. Since they both travel at the same speed, then if Devante walks x feet, so does Karen.
SInce both of them are traveling in opposite directions, then in order for them to meet they need to walk a total of 230 feet in combination toguether. Since they travel at the same speed, then each one has to travel half that amount, hence each one will travel 230/2 = 115 feet until they meet.
Answer:
b = 64
Step-by-step explanation:
