Use least common multiple or greatest common divisor to solve the problem.Two runners run around a circular track. The first runner completes a lap in 6 minutes. The second runner completes the track in 13 minutes. If they both start at the same place and the same time and go in the same direction, after how many minutes will they meet again at the starting place?
A. 156
B. 79
C. 19
D. 78
Answer: D
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Provide an appropriate response.Why is the line that forms the boundary of the solutions of an inequality part of the graph of the inequality when the inequality symbol is ? or ? but not when it is < or >?
What will be an ideal response?
Solve the problem.A force of 1000 lb compresses a spring from its natural length of 16 in. to a length of 13 in. How much work is done in compressing it from 13 in. to 6 in.?
A. 30,000 lb?in. B. 8200 lb?in. C. 15,000 lb?in. D. 0.14 lb?in.
Write the expression as one logarithm.logb x + logb y
A. log2b xy B. logb(x + y) C. logb xy D. log2b(x + y)
Find zw or 
as specified. Leave your answer in polar form.z = 10(cos 30° + i sin 30°)w = 5(cos 10° + i sin 10°)Find zw.
A. 15(cos 40° + i sin 40°) B. 50(cos 40° + i sin 40°) C. 15(cos 300° + i sin 300°) D. 50(cos 300° + i sin 300°)