Ata beach the height of the water in metres is modelled by the function N) = pcos(qt)+r, where t is the number of hours after 20:00 hours on I March 2018, for 0sIs 60. The point A(6, 0.8) represents the first low tide and B(12, 2) represents the next high (i) How much time is there between the first low tide and the next high tide? (ii) Find the difference in height between low tide and Find the value of () (ii) (iii) r. [7] There are two low tides on 3 March 2018. At what time does the second low tide occur?

buli4ka    2   02.03.2021 14:07    0