Simplify.15 + (-17) - 9 - (-12) + (-16)
A. 45
B. -39
C. -21
D. -15
Answer: D
Mathematics
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Find the exact value of the expression without using a calculator.sin 25° cos 35° + cos 25° sin 35°
A. 
B. 
C. 
D. 
Mathematics
Solve the logarithmic equation. Be sure to reject any value that is not in the domain of the original logarithmic expressions. Give the exact answer.log x + log (x -1) = log 6
A. {3}
B. {3, -2}
C. 
D. {-2}
Mathematics
Solve the problem.The sum of a student's three scores is 195. If the first is 10 points more than the second, and the sum of the first two is 12 more than twice the third, what was the first score?
A. 72 B. 62 C. 51 D. 61
Mathematics
Tell whether the statement is true or false.{2, 16, 26, 9, 32} = {32, 16, 9, 62, 2}
A. True B. False
Mathematics