Mathematics, 28.01.2020 03:31 luhmimi17
The sum of a number and two times a smaller number is 98. the bigger number is 22 less than three times the smaller number.
the two numbers are 60 and 19 54 and 22 50 and 24 58 and 20 .
Answers: 2
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
Mathematics, 21.06.2019 21:00
The functions below show the amount of money bella and sweet t had saved after earning money for doing chores. which description best compares the two functions?
Answers: 1
Mathematics, 21.06.2019 23:00
The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z
Answers: 2
Mathematics, 22.06.2019 01:30
One of the solutions to x2 - 2x – 15 = 0 is x = -3. what is the other solution? ox=-5 ox= -1 0 x=1 x = 5
Answers: 2
The sum of a number and two times a smaller number is 98. the bigger number is 22 less than three ti...
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