Answer the question.Find cos ? given that cos 2? = 
and 0 ? ? < 
.
A. 
B. 6
C. 
D. 
Answer: C
Mathematics
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Factor out a factor with a negative coefficient.-2x2 + 4x - 84
A. 2(-x2 + 2x + 42) B. 2(x2 + 2x + 42) C. -2(-x2 + 2x + 42) D. -2(x2 - 2x + 42)
Mathematics
Use the given triangles to evaluate the expression. Rationalize all denominators. 
sec 
- cos 
A. 
B. 
C. 
D. 
Mathematics
Determine the integral by making an appropriate substitution.
dx
A. 
+ C
B. 
+ C
C. 
+ C
D. 
+ C
Mathematics
Determine the unit rate.791 boxes filled in 0.1 hour
A. 79 boxes/hr B. 7910 boxes/hr C. 3955 boxes/hr D. 791 boxes/hr
Mathematics