Perform the indicated operation and simplify.
- 
A. 5y
B. 0
C. 
D. 
Answer: A
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Find the standard deviation for the given data. Round your final answer to one more decimal place than that used for the observations.The manager of a small dry cleaner employs six people. As part of their personnel file, she asked each one to record to the nearest one-tenth of a mile the distance they travel one way from home to work. The six distances ( in miles) are listed below.14.2?14.9?26.8?46.9?11.5?17.7
A. 2904.0 mi B. 3787.0 mi C. 13.29 mi D. 36.9 mi
Find the area. Use ? ? 3.14 when needed.
A. 90 m2 B. 45 m2 C. 504 m2 D. 1008 m2
Find the sum of the infinite geometric series, if it exists.
- 
+ 1 - . . .
A. 
B. - 32
C. 64
D. does not exist
Perform the indicated operations.(10x2 + 15x - 11) + (30x + 11)
A. 10x2 + 45x B. 55x3 C. 10x2 + 45x - 22 D. 10x2 + 15x + 22