Mathematics, 22.07.2019 05:00 jakhunter354
The cost of a piece of machinery is $1,750 if supplied by company a and $1,680 if supplied by company b. company a's contract offers unlimited repairs for $25 per month. company b's contract charges $150 per repair. the table lists the probabilities of the number of repairs required by company b's machinery during one year. number of repairs 0 1 2 3 probability 0.25 0.41 0.22 0.12 based on the data provided, which statement about the total cost for one year is true?
Answers: 2
Mathematics, 21.06.2019 15:00
1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.
Answers: 1
Mathematics, 21.06.2019 17:00
At the beginning of the day, stock xyz opened at $6.12. at the end of the day, it closed at $6.88. what is the rate of change of stock xyz? a. 1.17% b. 11.0% c. 12.4% d. 81.5%
Answers: 1
Mathematics, 21.06.2019 23:00
The sum of 5consecutive even numbers is 100. what is the first number in this sequence?
Answers: 1
The cost of a piece of machinery is $1,750 if supplied by company a and $1,680 if supplied by compan...
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