Denzel wants to work out the density, in g/cm cubed, of a block of wood, The block of wood is in the shape of a cuboid. His measurements are length 17.7cm
width of 8.3cm and
height 13.0cm .]

He also measured the mass at 2090g. By considering bounds, work out the density of the wood. Give your answer to a suitable degree of accuracy Show all your working and give full reason for your answer

Aconstruction worker has rope 9 m long he needs to cut it in pieces that are each 3 /5 m long how many such pieces can he cut without having any rope leftover?

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.

Use the given information to determine the exact trigonometric value.