Find the exact value of the expression. Do not use a calculator.sin (3?) + cos 
A. 0
B. -2
C. 1
D. -1
Answer: A
Mathematics
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Determine the sum or difference in clock 12 arithmetic.(12 + 7) + 12
A. 8 B. 3 C. 7 D. 31
Mathematics
Find factors or multiples as indicated for the number or numbers given.484; all factors
A. 1, 2, 4, 11, 22, 33, 44, 121, 242, 484 B. 1, 2, 4, 11, 22, 44, 121, 242, 484 C. 1, 2, 11, 121, 484 D. 1, 2, 3, 4, 11, 22, 121, 242, 484
Mathematics
Simplify the expression.
A. a2 + ab + b2 B. a - b C. a2 + b2 D. a2 - ab + b2
Mathematics
Rationalize the denominator. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Mathematics