In the problem, t is a real number and P = (x, y) is the point on the unit circle that corresponds to t. Find the exact value of the indicated trigonometric function of t.(- 
, 
)Find cos t.
A. 
B. - 
C. - 
D. - 
Answer: B
Mathematics
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Solve the system by graphing.2x + y = 2 x + 6y = -21
A. (3, 2) B. (3, -4) C. (-3, -4) D. (-1, 4)
Mathematics
Using the table, set up proportions to solve.The table shows a scale for the cost of sending printed matter to different countries using the services of an undisclosed courier.
Is it cheaper to send a 3.5 lb package to Mexico or a 3.5 lb package to Canada?
A. 3.5 lb package to Mexico B. 3.5 lb package to Canada
Mathematics
Simplify the rational expression. Assume that no variable has a value which results in a denominator with a value of zero.
A. 4p2 - 4 B. 4p C. -4p D. 4p2 + 4
Mathematics
Perform the indicated operation.
A. 
B. - 
C. - 
D. 
Mathematics