Kylie wants to solve the given system of linear equations. 3x + 2y = 13 x - 4y = 9 Her method is to replace the second equation with an equivalent form so that she can eliminate one of the variables by adding the equations together. Kylie rewrites the system of equations as follows: 3x + 2y = 13 -3x + 12y = What number should go in the blank space to produce the same solution as the original system?

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.

Including 6% sales tax, an inn charges $135.68 per night. find the inns nightly cost

A(1,1) b(-3,0) c(-4,-1) d(3,-2) drag it to correct position