Determine whether the Law of Sines or the Law of Cosines should be used to begin to solve the given triangle. Do not solve the triangle. 
A. Law of Sines
B. Law of Cosines
Answer: B
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Solve the problem.A tour group split into two groups when waiting in line for food at a fast food counter. The first group bought 8 slices of pizza and 4 soft drinks for $37.64. The second group bought 6 slices of pizza and 7 soft drinks for $34.59. How much does one slice of pizza cost?
A. $2.09 per slice of pizza B. $3.41 per slice of pizza C. $1.59 per slice of pizza D. $3.91 per slice of pizza
Use a sum or difference identity to find the exact value.tan 
A. 2 - 
B. - 2 - 
C. 2 + 
D. - 2 + 
Find the first five terms in the sequence whose nth term is given. 4n + 5
A. 9, 13, 17, 21, 25 B. 9, 14, 19, 24, 29 C. 20, 40, 60, 80, 100 D. 9, 18, 27, 36, 45
Determine if the function is a power function. If it is, then state the power and constant of variation.f(x) = 4 ? 5x
A. Not a power function B. Power is x; constant of variation is 20 C. Power is 5; constant of variation is 4 D. Power is x; constant of variation is 4