Find the root if it is a real number.
A. 3
B. 4
C. -2
D. 2
Answer: C
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Solve the problem. Express any improper fraction as a whole or mixed number.A = 78
square feet
A. 20 ft
B. 10
ft
C. 3
ft
D. 10 ft
Simplify the expression.[(-z)8]5
A. -z13 B. (-z)40 C. (-z)13 D. (-z8)5
Multiply.(2x + 1.6)(2x - 1.6)
A. 4x2 - 3.2 B. 4x2 - 6.4x- 2.56 C. 4x2 - 25.6 D. 4x2 - 2.56
111 college students were interviewed to determine their political party affiliations and whether they favored a balanced-budget amendment to the Constitution. The results of the study are listed in the table, where D represents Democrat and represents Republican. FavorNot favorUnsureTotalD2428860R3115551Total554313111A person is selected at random from the sample. Find the probability that the described person is selected. A Democrat who favors the amendment. Round your answer to one decimal place. ?
A. 22.2% B. 21.6% C. 21.3% D. 24.0% E. 24.9%