Mathematics, 15.07.2020 21:01 afloareiandrei8615
A wireless phone company has a pricing scheme that includes 200 minutes' worth of phone usage in the basic $50. Each minute over and above the first 200 minutes of usage is charged at $0.60 per minute. A) Let x be the number of minutes of phone usage per month. What is the expression for the average cost per minutes if the value of x is between 0 and 200? B) What is the expression for the average cost per minute if the value of x is in the interval (200,300]? C) If phone usage in a certain month is 300 minutes, what is the average cost per minute. Round to the nearest cent.
Answers: 2
Mathematics, 21.06.2019 19:30
Now max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.
Answers: 1
Mathematics, 21.06.2019 19:30
Suzanne began a trip with 18 1/2 gallons of gas in the gas tank of her car if she hughes 17 3/4 gallons on the trip how many gallons does she have left once she finish the trip
Answers: 1
A wireless phone company has a pricing scheme that includes 200 minutes' worth of phone usage in the...
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