Complete.
= 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Use the identities for the cosine of a sum or a difference to write the expression as a single function of ?.cos (? + 90°)
A. cos ? B. sin ? C. -sin ? D. -cos ?
Mathematics
Simplify the expression. Assume all variables represent nonzero real numbers.- 
0
A. 1
B. -1
C. 
D. 
Mathematics
Eliminate the parameter t in the following:
?
What will be an ideal response?
Mathematics
Refer to the double-bar graph below which shows the number of male and female athletes at a university over a four-year period. Solve the problem.
Which year had the same number of male and female athletes?
A. 2004 B. 2005 C. 2003 D. 2002
Mathematics