Indicate whether the function is one-to-one.Age Average Number of Children 18 -------------> 0.1 23 -------------> 0.4 25 -------------> 0.7 30 -------------> 1.2

A. No
B. Yes


Answer: B

Mathematics

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Perform the indicated clock arithmetic.(-9) ? (-7) (12-hr clock)

A. 8 B. Does not exist C. 7 D. 12

Mathematics

Explain the behavior of the graph of f(x) as it approaches its vertical asymptote.f(x) = 

A. Approaches ? from the left, approaches -? from the right B. Approaches ? from the left and the right C. Approaches -? from the left, approaches ? from the right D. Approaches -? from the left and the right

Mathematics

Solve the system of equations by the elimination method. Check your solutions. For any dependent equations, write your answer in ordered pair form.

A. {(-3, -4), (-4, -3)} B. {(3, -4), (3, 4)} C. {(3, 4), (4, 3), (-3, -4), (-4, -3)} D. {(3, 4), (-3, 4), (3, -4), (-3, -4)}

Mathematics

Solve.The weight W of an object on the Moon varies directly as the weight E on earth. A person who weighs 174 lb on earth weighs 34.8 lb on the Moon. How much would a 115-lb person weigh on the Moon?

A. 0.2 lb B. 323.8 lb C. 575 lb D. 23 lb

Mathematics