Solve the equation by the method of your choice. Simplify irrational solutions, if possible.(7x + 9)2 = 64
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Use a sum or difference identity to find the exact value.sin (-165°)
A. 
B. 
C. 
D. - 
Mathematics
Solve the problem.If f(?) = cos ? and f(a) = 
, find the exact value of f(a) + f(a + 2?) + f(a + 4?).
A. 
+ 6?
B. 
C. 
D. 
Mathematics
Simplify the expression. Express the answer so that all exponents are positive. Whenever an exponent is 0 or negative, we assume that the base is not 0.
-1
A. 
B. 
C. 
D. 
Mathematics
Identify the figure.
A. 
B. line segment 
C. line 
D. line segment 
Mathematics