Simplify the expression. Assume that all variables represent nonnegative numbers.
- 10
- 7
A. 64
B. 95
C. -95
D. -245
Answer: C
Mathematics
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Determine whether the selection is a permutation, a combination, or neither.Mary baked 3 pies: 1 for her father, 1 for her friend Joe, and 1 for her coworkers.
A. neither B. permutation C. combination
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Simplify the expression.27-4/3
A. 81
B. 
C. - 
D. not a real number
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Express the sum using summation notation.35 + 45 + 55 + ... + 85
A. 
B. 
C. 
D. 
Mathematics
Find the following root if it exists.
A. 4 B. -4 C. This root does not exist as a real number D. 16
Mathematics