Find the exact value by using a half-angle identity.tan 
A. 1 - 
B. -1 - 
C. -1 + 
D. 1 + 
Answer: A
Mathematics
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For right triangle ABC, m
= 90°. If b = 8 and c = 12, find cos B (or cos 
).
What will be an ideal response?
Mathematics
Solve the problem.The function R(x) = 
- 
+ 1000 models the revenue R (in thousands of dollars) of a computer store store for the year x where 
Solve and interpret 
A. The revenue was $1015 thousand dollars in 2022 B. The revenue was $1210 thousand dollars in 2009 C. The revenue was $1014 thousand dollars in 2008 D. The revenue was $1210 thousand dollars in 2022
Mathematics
List all the factors of the number.70
A. 1, 3, 5, 7, 9, 15, 20, 35, 70 B. 1, 2, 5, 7, 10, 14, 35, 70 C. 1, 2, 3, 5, 7, 9, 15, 35, 70 D. 1, 2, 5, 7, 35, 70
Mathematics
Simplify the complex fraction.
A. 
B. 
C. 
D. 
Mathematics