Solve.
= -1
A. 3
B. -1
C. 1
D. No solution
Answer: C
Mathematics
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Solve.60% of what is 81?
A. 1350 B. 48.6 C. 135 D. 13.5
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Graph.
- 
= 1
A. 
B. 
C. 
D. 
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Classify the angle as acute, obtuse, straight, or right.
A. Obtuse B. Right C. Acute D. Straight
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Show that the equation is not an identity by listing the value(s) of the variable from among 0, ?/4, ?/2, and - ?/4 for which the equation is false.sin ? + sin 
= sin 
A. 
, 
, and 0
B. 
and - 
C. 
, 
, and - 
D. 
and 0
Mathematics