Use the information given about the angle ? to find the exact value of the indicated trigonometric function.cot ? = -3, sec ? > 0Find cos 
.
A. -
B. -
C. 
D. 
Answer: B
Mathematics
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Rewrite the expression with a positive rational exponent. Simplify, if possible.9-3/2
A. 
B. 
C. - 
D. - 
Mathematics
Find the indicated cardinal number.Find n(C × D) given that C = {4, 5, 6} and D = {7, 8, 9, 10}.
A. 7 B. 12 C. 81 D. 27
Mathematics
Solve the equation.
x - 
= 
+ 
x
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Suppose the following matrix represents the input-output matrix of a primitive economy. How much of each commodity should be produced to produce 5 bushels of yams and 1 pigs?
A.
X = 
B.
X = 
C.
X = 
D.
X = 
Mathematics