Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Perform the indicated operation.
- 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The number of ways that the first-, second-, and third-place winners in a singing competition can be selected from n finalists is given by P(n) = n3 - 3n2 + 2n. If there are 6 finalists, how many ways can the first-, second-, and third-place winners be selected?
A. 216 B. 20 C. 120 D. 720
Mathematics
Find the probability.A basketball player hits her shot 41% of the time. If she takes four shots during a game, what is the probability that she hits all four? Express the answer as a percentage, and round to the nearest tenth (if necessary).
A. 82% B. 10.3% C. 41% D. 2.8%
Mathematics
Find the inverse of the function.f(x) = 3x + 8
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = 
D. f-1(x) = 
Mathematics