Simplify this expression
21z-6z+13
15z+...
Answers: 1
Mathematics, 21.06.2019 20:00
Mario has $14.35 left in his wallet. he spent $148.43 for tablecloths. then, he spent $92.05 for napkins. how much money did mario have in his wallet to start with?
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 23:30
Dots sells a total of 279 t-shirts ($2) and shorts ($4). in april total sales were $670. how many t-shirts and shorts did dots sell?
Answers: 1
Mathematics, 12.08.2021 19:10
Mathematics, 12.08.2021 19:10
Mathematics, 12.08.2021 19:10
Mathematics, 12.08.2021 19:10
Chemistry, 12.08.2021 19:10
Mathematics, 12.08.2021 19:10
Mathematics, 12.08.2021 19:10
Law, 12.08.2021 19:10
Physics, 12.08.2021 19:10
Mathematics, 12.08.2021 19:10
Computers and Technology, 12.08.2021 19:10