Remove or add parentheses as indicated.Rewrite a(b + c) - b(c + a) without parentheses.
A. ac + bc
B. 2ab + ac - bc
C. ac - bc
D. ac + bc + 2ab
Answer: C
Mathematics
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Find the probability for the experiment of tossing a six-sided die twice.
The sum is at least What will be an ideal response?
Mathematics
Find the quantity if v = 5i - 7j and w = 3i + 2j.
A. 
B. 
C. 2
- 
D. 
- 
Mathematics
Perform the indicated operation. Round your answer to the nearest hundredth, if necessary.
A. -1.19 B. -5.67 C. -0.03 D. -5.77
Mathematics
Write the expression in lowest terms.
A. -1 B. -m + s C. m + s D. -m - s
Mathematics