Answer:
Step-by-step explanation: -3
Answer:

Step-by-step explanation:
we have

Find the inverse function 
step 1
Let
y=f(x)

step 2
Exchanges variables, x for y and y for x

step 3
isolate the variable y



step 4
Let


8.a)
A= (1,1) A’= (3,3)
B= (4,6) B’= (12,18)
C= (6,1). C= (18,3)
8b.)
A= (1,1) A’(0,5,0.5)
B= (4,6) B(2,3)
C= (6,1). C(3,0.5)
Hope this helped ! :)
Answer:
Step-by-step explanation:
1) Find the common denominator.
2) Multiply everything by the common denominator.
3) Simplify.
4) Check the answer(s) to make sure there isn't an extraneous solution.
42.8 in
Step-by-step explanation:
Step one:
given data
we are told that the expression for the depth of a lake after x years is given by
Required
The value of y when x= 4
Step two:
substitute the value of x in the expression to get y
After 4 years the depth will increase by 42.8 in