Mathematics, 28.03.2020 16:59 fyegirl12
A basic cellular phone plan costs $ 18 per month for 50 calling minutes. Additional time costs $ 0.90 per minute. The formula Upper C equals 18 plus 0.90 left parenthesis x minus 50 right parenthesis gives the monthly cost for this plan, C, for x calling minutes, where x greater than 50. How many calling minutes are possible for a monthly cost of at least $ 63 and at most $ 72 question mark
Answers: 1
Mathematics, 20.06.2019 18:04
What is the common difference in the following arithmetic sequence? 7,3,-1,-5
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Mathematics, 21.06.2019 19:40
The owners of four companies competing for a contract are shown in the table below. if a report is released that advocates company b, which of the people having funded the report should result in the most skepticism? company owner of company company a jake adams company b company c company d debby smith henry rose rhonda baker o a. jake adams o b. rhonda baker o c. debby smith o d. henry rose
Answers: 2
Mathematics, 21.06.2019 20:20
Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?
Answers: 1
Mathematics, 21.06.2019 20:50
An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.
Answers: 3
A basic cellular phone plan costs $ 18 per month for 50 calling minutes. Additional time costs $ 0.9...
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