Find the standard deviation of the data.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 are listed below. Find the standard deviation. Round to the nearest hundredth. 21.1 19.8 40.1 31.2 10.5 14.1
A. 3119.04 mi
B. 3727.76 mi
C. 11.03 mi
D. 35.65 mi
Answer: C
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Two marbles are drawn without replacement from a box with 3 white, 2 green, 2 red, and 1 blue marble. Find the probability.The second marble is white given the first marble is blue.
A. 
B. 
C. 
D. 
Find the indicated angle or side. Give an exact answer.Find the exact length of side a.
A. 2
B. 4
C. 4
D. 2
Solve the problem.Marty's Tee Shirt & Jacket Company is to produce a new line of jackets with a embroidery of a Great Pyrenees dog on the front. There are fixed costs of $610 to set up for production, and variable costs of $43 per jacket. Write a linear equation that can be used to determine the total cost, y, encountered by Marty's Company in producing x jackets, and use the equation to find the total cost of producing 140 jackets.
A. $6610 B. $6642 C. $6622 D. $6630
Find an equation for the hyperbola described. Graph the equation.Center at (0, 0); focus at (
, 0); vertex at (5, 0)
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1