Mathematics, 04.08.2019 03:30 alanihuling
The work of a student to solve a set of equations is shown below: equation 1: m = 8 + 2n equation 2: 4m = 4 + 4n step 1: −4(m) = −4(8 + 2n) 4m = 4 + 4n step 2: −4m = −32 − 8n 4m = 4 + 4n step 3: −4m + 4m = −32 − 8n + 4n step 4: 0 = −32 − 4n step 5: n = − 8 in which step did the student first make an error? (4 points) a. step 1 b. step 2 c. step 3 d. step 4
Answers: 1
Mathematics, 21.06.2019 13:00
Which equation requires the division property of equality to be solved?
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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 21:30
What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14
Answers: 2
The work of a student to solve a set of equations is shown below: equation 1: m = 8 + 2n equation...
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