Find the exact value of the expression.cos
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find n(A) for the set.A = {x : x is a vowel in the word infinite}
A. n(A) = 4 B. n(A) = 2 C. n(A) = 5 D. n(A) = 3
Mathematics
Solve the inequality and graph the solution.-4 < 
A. x < -12
B. x > -12
C. x ? -12
D. x ? -12
Mathematics
Evaluate.-12 ÷ 4
A. -2 B. -4 C. -3 D. 3
Mathematics
Solve the problem. Round to the nearest hundredth, if necessary.The average weekly income of teachers in one school district is $840 with a standard deviation of 
Find the percentage of teachers earning more than $960 a week?
A. 1.09% B. 13.79% C. 84.13% D. 86.21%
Mathematics