12 Scale: 4 cm represents 1m
The diagram shows of part of a wall to be tiled. The dimensions of the wall in the drawing are
8cm long and 4cm tall.
Kamran is going to cover this part of the wall with square tiles. Each tile has sides of length 10
cm.
The tiles cost 25p each.
Kamran spends £60 on tiles.
Use the scale shown to calculate the 'true' dimensions of the wall. Show that Kamran has
bought enough tiles. *
(4 Points)

In one day there are too high tides into low tides and equally spaced intervals the high tide is observed to be 6 feet above the average sea level after six hours passed a low tide occurs at 6 feet below the average sea level in this task you will model this occurrence using a trigonometric function by using x as a measurement of time assume the first high tide occurs at x=0. a. what are the independent and dependent variables? b. determine these key features of the function that models the tide: 1.amplitude 2.period 3.frequency 4.midline 5.vertical shift 6.phase shift c. create a trigonometric function that models the ocean tide for a period of 12 hours. d.what is the height of the tide after 93 hours?