Evaluate the function requested. Write your answer as a fraction in lowest terms.Find cos ?.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find the unknown side of the right triangle. Use a calculator or square root table when necessary and round to the nearest thousandth.
A. 9.165 in. B. 84 in. C. 21 in. D. 42 in.
Mathematics
Find the solution set of the system.
a. 
b. 
c. 
d. 
Mathematics
Convert the rectangular coordinates to polar coordinates. Express the answer in degrees, using the smallest possible positive angle. Round r to the nearest tenth, if necessary, and round ? to the nearest tenth of a degree.(12, 16)
A. (28, 36.9°) B. (20, 48.6°) C. (20, 53.1°) D. (20, 36.9°)
Mathematics
Solve.List the quadrants and which of the sine, cosine, and tangent have positive values.
What will be an ideal response?
Mathematics