Write sigma notation.-1 + 
- 
+ 
- 
+ . . .
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the common ratio, r, for the geometric sequence.2, 6, 18, 54, 162, . . .
A. 1/3 B. 6 C. 81 D. 3
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Perform the indicated operation.2
- 5
A. -45
B. 45
C. -5
D. 5
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Referring to triangle ABC, find the area of the triangle. ? a = 4.9 yd, b = 6.5 yd, c = 7.8 yd ? Round to three significant digits. ? S = __________ yd2
Fill in the blank(s) with the appropriate word(s).
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Simplify the expression. Assume that all variables are positive when they appear.(5
- 5)2
A. 75 + 50
B. 25 - 50
C. 75 - 50
D. 45 - 50
Mathematics