Use a sum or difference identity to find the exact value.sin 
cos 
- cos 
sin 
A. 
B. 
C. 1
D. 
Answer: A
Mathematics
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Solve the inequality. Graph the solution set and write it in interval notation.
(x + 3) > 
(5x + 4)
A. 
B. 
C. 
D. 
Mathematics
Fill in the blank with one of the words listed below.
To find an x-intercept of a graph, let 
= 0.
A. x-intercept B. x C. y-intercept D. y
Mathematics
Write the number in scientific notation.33,000
A. 3.3 × 105 B. 3.3 × 10-5 C. 3.3 × 104 D. 3.3 × 10-4
Mathematics
Determine whether the ordered triple is a solution to the given linear system.
A. Yes B. No
Mathematics