Simplify.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Write an equation to represent the problem.The difference of twice a number and 7 is 15.
A. 2x + 7 = 15 B. 2x - 7 = 15 C. 7 - 2x = 15 D. x - 2 ? 7 = 15
Mathematics
Find the slope of the line and sketch the graph.y = 3x - 1
A. m = -1
B. m = 
C. m = 3
D. m = -3
Mathematics
Use the quadratic formula or graphing methods to solve the inequality.2x2 + 10x + 4 ? 0
A. x ? 
? -4.562 or x ? 
? -0.438
B. x ? 
? -0.438
C. x ? 
? -4.562
D. 
? -4.562 ? x ? 
? -0.438
Mathematics
Find the unknown number in the proportion. Round answer to the nearest hundredth when necessary.
= 
A. x = 30.38 B. x = 1.8 C. x = 2.25 D. x = 0.03
Mathematics