Solve the problem.One maid can clean the house in 3 hours. Another maid can do the job in 2 hours. How long will it take them to do the job working together?
A. 6 hr
B. 
hr
C. 
hr
D. 
hr
Answer: B
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Solve the problem.Tim and Judy mix two kinds of feed for pedigreed dogs. They wish to make 54 pounds of feed worth $0.28 per pound by mixing one kind worth $0.24 per pound with another worth $0.42 per pound. How many pounds of the cheaper kind should they use in the mix?
A. 42 pounds B. 22 pounds C. 32 pounds D. 12 pounds
Two sides and an angle are given. First, determine whether the given information results in no triangle, one triangle, or two triangles. Solve each resulting triangle.a = 26, b = 9, B = 10°
A. one triangle; A = 149.89°, C = 20.11°, c = 17.82 B. one triangle; A = 30.11°, C = 139.89°, c = 33.39 C. two triangles; A1 = 30.11°, C1 = 139.89°, c1 = 33.39 or A2 = 149.89°, C2 = 20.11°, c2 = 17.82 D. no triangle
Solve the problem.Find the surface area of a right regular hexagonal pyramid with sides 3 cm and slant height 6 cm. Round your answer to the nearest hundredth.
A. 70.15 cm2 B. 65.69 cm2 C. 108.00 cm2 D. 77.39 cm2
Evaluate the function.Find f(-3) when f(x) = 3x - 1
A. -8 B. 2 C. -10 D. -6