Use identities to write the expression as a function of x alone.sin (45° + x)
A. 
B. - 
C. - 
D. 
Answer: D
Mathematics
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Evaluate using substitution.
Mathematics
Multiply, and then simplify if possible. Assume all variables represent positive real numbers.(
- 
)(
+ 
)
A. 11
+ 3
- 11
+ 33
B. 11
+ 3
+ 11
+ 33
C. 11
- 3
+ 11
+ 33
D. 11
+ 3
- 11
- 33
Mathematics
Identify the intervals where the function is changing as requested.Increasing
A. (-3, 3) B. (-3, ?) C. (-2, 2) D. (-2, ?)
Mathematics
Determine whether the given value is a solution to the given equation.Is 0.07 a solution of -7.9x = -5.53?
A. Yes B. No
Mathematics