Find the exact value of the expression.tan 345°
A. 
B. 2 + 
C. -2 - 
D. 
Answer: C
Mathematics
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Determine the principal value without using a calculator.
A. 12 B. 72 C. 13 D. Not a real number
Mathematics
Evaluate.log327
A. x = 3
B. x = 1
C. x = 
D. x = 9
Mathematics
Graph the inequality.y ? 2x - 4
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Anne and Nancy use a metal alloy that is 28.2% copper to make jewelry. How many ounces of an alloy that is 23% copper must be mixed with an alloy that is 30% copper to make 105 ounces of the desired alloy?
A. 83 ounces B. 78 ounces C. 27 ounces D. 29 ounces
Mathematics