Find the indicated set.Let A = {2, 7, 9, 12, 15}, B = {3, 9, 15, 20}, and C = {4, 9, 12, 15}.Find 
A. {2, 3, 4, 7, 9, 12, 15, 20}
B. {2, 7, 9, 12, 15, 3, 9, 15, 20, 4, 9, 12, 15}
C. {9, 15}
D. {9, 12, 15}
Answer: A
Mathematics
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Find the indicated decile or percentile.The normal annual precipitation (in inches) is given below for 21 different U.S. cities. Find the seventy-eighth percentile, P78 .
A. 35.0
B. 32.3
C.
| 33.6 |
D. 30.6
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Calculate 
.v = 4i + 6j
A. 2
B. 52
C. 2
D. 5
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Find the LCD for the pair of rational expressions.
, 
A. 24a2b3 B. 24a3b2 C. 192a5b3 D. 24a5b3
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Divide.7.7 ÷ (-11)
A. -1.7 B. -17 C. -7 D. -0.7
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