Find the exact value of the trigonometric expression without the use of a calculator.cos (135° + 240°)
A. 
B. 
C. - 
D. - 
Answer: A
Mathematics
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List the critical values of the related function. Then solve the inequality.
? 
A. -3, 1, 3, 7; (-?, -3) ? (1, 3) ? 
B. -3, 1, 3, 7; (-3, 1) ? 
C. No critical values; ?
D. 3; (-?, 3)
Mathematics
A college needs two additional faculty members: a chemist and a statistician. In how many ways can these positions be filled if there are three applicants for the chemistry position and four applicants for the statistics position?
a. 10 b. 11 c. 16 d. 12
Mathematics
Solve the equation for the unknown value.13 = 3x - 8
A. x = 22 B. x = 12 C. x = 7 D. x = 18
Mathematics
Use the even-odd properties to find the exact value of the expression. Do not use a calculator.sin (-60°)
A. 
B. 
C. - 
D. - 
Mathematics