the mathematics Department of a college has 11 male professors 12 female professors 9 male teaching assistants and 12 female tea
ching assistant if a person is selected at random from a group find the probability that the selection person is teaching assistant or a female 
1 answer:
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For this case we must find the inverse of the following function:
We follow the steps below:
Replace f(x) with y:
We exchange the variables:
We solve for "y":
Multiply by -2 on both sides of the equation:
We raise both sides of the equation to the square to eliminate the radical:
We subtract 3 from both sides of the equation:
We change y by f ^ {- 1} (x):
Answer: