Mathematics, 26.06.2020 20:01, thedocgalloway

# Zia was driving his truck on the superhighway. His speed was recorded by the motorway camera between 6:00 am to 8:30 am. He covered a distance of 250km during this time. Calculate his average speed between this time duration.

Answers: 1

Mathematics, 21.06.2019 19:00, fluffypuppies24

The vertex of a parabola is at $(12, -4)$, and its axis of symmetry is vertical. one of the $x$-intercepts is at $(15, 0)$. what is the $x$-coordinate of the other $x$-intercept?

Answers: 1

Mathematics, 21.06.2019 20:50, brea2006

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

Zia was driving his truck on the superhighway. His speed was recorded by the motorway camera between...