Solve the equation in the real number system.3x3 - 14x2 + 13x + 6 = 0
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.If the shaded triangle ABD shown is a gnomon to triangle BCD, then y =
A. 18. B. 32. C. 40. D. 30. E. none of these
Find the exact value of the expression or state that it does not exist.sin-1 
A. 
B. 
C. 
D. 
Decide what number must be added to the binomial to make a perfect square trinomial.x2 + 8x
A. 8 B. 16 C. 4 D. 32
Solve the problem. If necessary, round your result to the nearest tenth unless instructed differently. The precise value of your approximation may depend on the conversion path that you choose.In a certain medium, sound travels at a speed of 5205 feet per second. How many meters per second does sound travel in this medium? Round to the nearest tenth.
A. 17,072.4 m/s B. 2030.0 m/s C. 4736.6 m/s D. 1561.5 m/s