Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find the inverse of the matrix by using a graphing calculator.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The surface area of a sphere is f(x) = 4?x2 square inches, where x is the radius of the sphere in inches. Find the inverse of this function.
A. f-1(x) = 2
B. f-1(x) = 
C. f-1(x) = 2
D. f-1(x) = 
Mathematics
Simplify by factoring. Assume that any variable in a radicand represents a positive real number.
A. 5y
B. 5y5
C. y5
D. 
Mathematics
Simplify the expression. Assume that all variables are positive when they appear.
A. 
B. 
C. 
D. 
Mathematics