Solve the problem.Ken and Kara are 27 miles apart on a calm lake paddling toward each other. Ken paddles at 5 miles per hour, while Kara paddles at 8 miles per hour. How long will it take them to meet?

A. 9 hours
B. 1 hours
C. 2 hours
D. 14 hours


Answer: C

Mathematics

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Evaluate the integral.

A. + C
B. + C
C. sec-1 (x + 2) + C
D. csc-1 (x + 2) + C

Mathematics

Use U = universal set = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}, A = {1, 2, 3, 5, 8}, B = {2, 3, 5, 7}, and C = {1, 4, 9} to find the set.A ? C

A. {1, 2, 3, 5, 7, 9} B. {1, 2, 3, 4, 5, 8, 9} C. {4, 6, 7, 9} D. {1}

Mathematics

Solve the triangle, if possible. Approximate values to the nearest tenth when appropriate.a = 3.0, ? = 46.0°, ? = 90°

A. b = 5.1, ? = 44.0°, c = 4.2 B. b = 5.1, ? = 44.0°, c = 5.9 C. b = 2.9, ? = 44.0°, c = 4.2 D. b = 1.8, ? = 44.0°, c = 3.5

Mathematics

Provide an appropriate response.In a normal distribution, 95% of the data will fall within three standard deviations of the mean.

A. True B. False

Mathematics