Complete the identity.
- 
= ?
A. 1
B. -sec2 ?
C. 0
D. 1 - sin ?
Answer: A
Mathematics
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Simplify and add or subtract wherever possible.10
+ 9
+ 7
A. 10
B. 1684
C. -1684
D. 166
Mathematics
Solve the problem.In a geometric sequence, find the first term if the 13th term is 512 and the ratio is 
.
A. 8
B. 4
C. 8
D. 4
Mathematics
Find the area of the figure. Use 3.14 for ?. Round your answer to the nearest tenth.
A. Not enough data B. 820.5 yd2 C. 770.2 yd2 D. 921.0 yd2
Mathematics
Simplify the rational expression. If the rational expression cannot be simplified, so state.
A. 
B. 
C. cannot be simplified
D. 
Mathematics