Evaluate.
A. 12
B. 18
C. 30
D. 10
Answer: A
Mathematics
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Simplify the expression.cot x sec x sin x
A. csc2 x B. sec2 x C. tan2 x D. 1
Mathematics
Translate into a system of equations. Do not solve.The sum of two numbers is -50. Five times the smaller number minus twice the larger number is -47. What are the numbers? (Let x represent the smaller number and y represent the larger number.)
A. 
B. 
C. 
D. 
Mathematics
Simplify the following by combining like terms.3.8x3 - 6.5x + 11.7 + 1.5x - x3 - 8.3
A. 2.8x3 - 5x + 3.4 B. 1.2x4 C. 3.8x3 + 8x + 20 D. cannot be simplified
Mathematics
Multiply. 
A. 94,000 B. 95,000 C. 85,000 D. 93,000
Mathematics