Subtract.12 - (-12)
A. 0
B. -12
C. 24
D. -24
Answer: C
Mathematics
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Solve by the method specified.Addition method8x + 5y = -704x - 3y = -2
A. (-5, -5) B. (-6, -6) C. (-6, -5) D. (-5, -6)
Mathematics
Simplify the expression. Assume that all variables are positive when they appear.
A. 9y4 B. 3y4 C. 3y6 D. 3y8
Mathematics
Solve the problem.Bill Monotone sells used CDs for $9.00 each. Each used CD costs him $3.00. His overhead is $6300. Express the cost C as a function of x where x is the number of CDs sold.
A. C(x) = 9.00x + 6300 B. C(x) = 3.00x + 6300 C. C(x) = 6300x + 9.00 D. C(x) = 6300x + 3.00
Mathematics
Find the exact value of the following expression without using a calculator.sin (270°)
A. 
B. 
C. 0
D. -1
Mathematics