Find the quotient and simplify, if possible.

A. 2x4y2
B. 2x2y
C. 28xy
D. 4x2y


Answer: B

Mathematics

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Solve.The amount (in g) of a radioactive substance remaining after time t (in months) is given by the function . Express  in polynomial form by using the first three terms of the Maclauren expansion.

A. 320 - 6.4t + 0.064t2 + . . . B. 320 + 6.4t + 0.064t2 + . . . C. 320 - 320t + 160t2 + . . . D. 320 - 6.4t + 0.128t2 + . . .

Mathematics

Solve for x using an equivalent exponential expression.log5 25 = x

A. 125 B. 2 C. 30 D. 5

Mathematics

Solve the problem.A cruise boat travels 24 miles downstream in 2 hours and returns to its starting point upstream in 12 hours. Find the speed of the stream.

A. 12 mph B. 7 mph C. 19 mph D. 5 mph

Mathematics

Identify the probability statement as empirical or not.The probability of an adult male's height being at least 6 feet is 0.25.

A. Not empirical B. Empirical

Mathematics