Simplify by removing parentheses and collecting like terms.
2x - 6(4x - 2) - 5
A. -22x - 17
B. -22x + 7
C. -22x - 7
D. -2x - 17
Answer: B
Mathematics
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Simplify. Assume that all variables represent nonnegative numbers.
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A. 
B. 
C. 
D. 
Mathematics
Graph the function. Show at least one period.y = 4 sin(-2x - ?)
A. 
B. 
C. 
D. 
Mathematics
Simplify the expression. Express the answer so that all exponents are positive. Whenever an exponent is 0 or negative, we assume that the base is not 0.
-1
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.An older model computer came with 930 MB of memory, while a more modern computer comes with 2 GB of memory. The modern computer has how many times as much memory as the old, to the nearest tenth?
A. 0.2 times as much memory B. 21.5 times as much memory C. 4.7 times as much memory D. 2.2 times as much memory
Mathematics