Evaluate without using a calculator by using ratios in a reference triangle.cos 
A. 
B. - 
C. 
D. - 
Answer: A
Mathematics
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Divide, if possible. If a quotient is undefined, state so.
A. -40 B. 40 C. -5 D. 5
Mathematics
If an island's only residents are penguins and bears, and if there are 17 heads and 38 feet on the island, how many penguins and how many bears are on the island? ? The number of bears is __________. ? The number of penguins is __________. ?
What will be an ideal response?
Mathematics
Determine whether the equation is quadratic.
= -4
A. Yes B. No
Mathematics
Solve the system by graphing. If there isn't a unique solution to the system, state the reason.
A. (-1, -2) B. (1, 2) C. (2, 1) D. inconsistent system of equations
Mathematics