Simplify the radical expression. Assume that all variables represent nonnegative real numbers.( + )( - )

A. 12 - 2
B. 12 - z
C. 12 - 2
D. 12z


Answer: B

Mathematics

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Use the discriminant to determine if the equation can be solved by factoring. If the equation can be solved by factoring, then factor it.c2 + 6c + 9 = 0

A. (c + 3)2 = 0 B. (c + 3)(c - 3) = 0 C. (c - 3)2 = 0 D. Cannot be solved by factoring

Mathematics

Solve the problem.A survey revealed that 47% of people are entertained by reading books, 27% by watching TV, and 14% are entertained by both books and TV. What is the probability that a person will be entertained by books given that the person is entertained by TV? Round to the nearest thousandth.

A. 0.47 B. 0.298 C. 0.519 D. 0.27

Mathematics

Find the perimeter.

A. 413 feet B. 1068 feet C. 826 feet D. 922 feet

Mathematics

Determine whether the relation is a function.

A. Function B. Not a function

Mathematics