The polynomial function f(x) is a fourth degree polynomial. which of the following could be the complete list of the roots of f(x)? 1. 3,4,5,6 2. 3,4,5,6i 3. 3,4+i square root of 6, 5+ square root of 6 4. 3,4,5+i,-5+i

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are:

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.

Kelly walks 0.7 mile to school. mary walks 0.49 mile to school. write an inequality using < ,> , or = to compare the distances they walk to school.