Add or subtract as indicated.
- 
A. 
B. 
C. 
D. 
Answer: B
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
Use a calculator to give the real number value. Round the answer to 7 decimal places.y = tan-1(-0.7002)
A. -0.6634921 B. -0.5761905 C. -0.6108602 D. 2.5317483
Mathematics
Divide and express the result in standard form.
A. 
+ 
i
B. 
+ 
i
C. 
+ 
i
D. 
- 
i
Mathematics
The graph of a function f is given. On the same axes, sketch the graph of f-1. 
A. 
B. 
Mathematics