Mathematics, 05.07.2019 20:40 dozsyerra
Manufacture of a certain component requires three different machining operations. machining time for each operation has a normal distribution, and the three times are independent of one another. the mean values are 20, 30, and 15 min, respectively, and the standard deviations are 2, 1, and 1.4 min, respectively. what is the probability that it takes at most 1 hour of machining time to produce a randomly selected component? (round your answer to four decimal places.)
Answers: 2
Mathematics, 21.06.2019 14:10
Students are given 3 minutes for each multiple-choice question and 5 minutes for each free-response question on a test. there are 15 questions on the test, and students are given 51 minutes to take it.how many multiple-choice questions are on the test?
Answers: 1
Mathematics, 21.06.2019 17:00
Alonso walked with his friend andy one day, and wanted to compare their speeds. alonso walked 3 miles in one hour, and andy walked 2 miles in 2 hours. complete the table to graph the relationship for each person.
Answers: 3
Mathematics, 21.06.2019 17:30
Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.
Answers: 2
Manufacture of a certain component requires three different machining operations. machining time for...
History, 02.07.2019 12:40
English, 02.07.2019 12:40
Mathematics, 02.07.2019 12:40
Social Studies, 02.07.2019 12:40
Spanish, 02.07.2019 12:40
Mathematics, 02.07.2019 12:40
Mathematics, 02.07.2019 12:40
Mathematics, 02.07.2019 12:40
Biology, 02.07.2019 12:40