Use the Half-angle Formulas to find the exact value of the trigonometric function. tan 165°
A. -2 + 
B. -2 - 
C. 2 + 
D. 2 - 
Answer: A
Mathematics
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Write the number as the product of prime factors.651
A. 21 ? 31 B. 3 ? 3 ? 31 C. 3 ? 7 ? 31 D. 7 ? 7 ? 31
Mathematics
Provide an appropriate response.In right triangle ABC, with right angle C, side a = 4.5, b = 5.4, and c = 7, find the sin A. Round answer to nearest ten-thousandth.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Match the equation to the correct graph.y = 
(x - 2)2 + 5
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Find k if x = 1 is a solution of the equation kx2 + x + 4 = 0.
A. k = 3 B. k = 5 C. k = -3 D. k = -5
Mathematics