Solve. Write the answer as a mixed number in simplest form.A nail 3
inches long is driven into a board 2
inches thick. How much of the nail protrudes from the other side of the board?
A. 
in.
B. 2
in.
C. 
in.
D. 
in.
Answer: D
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Graph the polar equation.r2 = 33 cos 4?
A. 
B. 
C. 
D. 
True or false?In Riemannian geometry, it is not possible for two triangles to have identical angles and different perimeters.
A. True B. False
Solve the problem.The consumption of electricity can be modeled by C = Aert, where A is the current use, r is the rate at which the use is increasing, and t is the number of years. Suppose the consumption of electricity grows at 6.8% per year. Find the number of years before the use of electricity has tripled. Round the answer to the nearest hundredth.
A. 1.62 years B. 44.12 years C. 0.16 year D. 16.16 years
Write using radical notation. Then, simplify, if possible.77764/5
A. 1,679,616 B. 1296 C. 279,936 D. 10,077,696