Select ALL of the equations that match the tape diagram
7(x + 19) = 40
40 - 19 = 7x
19...
Mathematics, 22.05.2021 21:40 unknown235
Select ALL of the equations that match the tape diagram
7(x + 19) = 40
40 - 19 = 7x
19 + x = 40
7x + 19 = 40
40 - 7x = 19
40 = 19 * 7x
Answers: 3
Mathematics, 21.06.2019 16:40
What is the average rate of change for this function for the interval from x=2 to x=4 ?
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 22:00
Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of
Answers: 1
Mathematics, 17.11.2020 22:50
History, 17.11.2020 22:50
Mathematics, 17.11.2020 22:50
Mathematics, 17.11.2020 22:50
English, 17.11.2020 22:50
Mathematics, 17.11.2020 22:50
English, 17.11.2020 22:50
Arts, 17.11.2020 22:50
Mathematics, 17.11.2020 22:50
Mathematics, 17.11.2020 22:50
History, 17.11.2020 22:50
English, 17.11.2020 22:50