Find the mean.The normal monthly precipitation (in inches) for August is listed for 20 different U.S. cities. Find the mean of the data. Round to the nearest hundredth.3.5 1.6 2.4 3.7 4.13.9 1.0 3.6 4.2 3.43.7 2.2 1.5 4.2 3.42.7 0.4 3.7 2.0 3.6
A. 3.09 in.
B. 3.27 in.
C. 2.94 in.
D. 2.80 in.
Answer: C
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Is the function graphed below one-to-one?
A. No B. Yes
Provide an appropriate response.Given ?ABC~?DEF, AB = 2.2, DE = 0.6, BC = 2.4, what does EF equal?
A. 8.8 B. 0.65 C. 0.55 D. 7.67
Solve the problem.Jane wants to buy a photocopier. The salesperson has the following information on 3 models. If all 3 are used, a specific job can be done in 50 minutes. If copier A operates for 20 minutes and copier B for 50 minutes, one-half the job is finished. If copier B operates for 30 minutes and copier C for 80 minutes, three-fifths of the job is done. Which is the fastest copier, and how long does it take for this copier to finish the whole job?
A. A is fastest; 120 minutes B. C is fastest; 100 minutes C. B is fastest; 100 minutes D. C is fastest; 120 minutes
Solve and graph the solution set on a number line.
? 9
A. [-6, 0]
B. [-4, 2]
C. (-6, 0)
D. (-4, 2)