For this question, use 24 hour time (example: 10 am = 10, noon = 12, 6 pm = 18, midnight = 24). Mr. Ray rented a cottage last summer in Oak Bay on the Bay of Fundy in New Brunswick. The Bay of Fundy is well known for its high tides (the water goes up and down by several metres). The water outside his cottage reached a maximum depth of 2.0 metres at 4 am, and again at 3:00 pm. The minimum depth is considered to be -0.6 metres (which really means that there is no water in the bay and that the water level is 0.6 m below the surface). a) Determine a function that models the depth of the water over time. b) There is an island about 800 metres from the cottage that you can walk to during low tide. What times during that day can you walk to the island? You can answer in 24 hour time (with decimals) or regular time. You may use Desmos to solve this part. If you do, include a screenshot showing the function used and the graph. Solve each of the following. Include units. If the value has no units, state "no units". a cos! (%) b) SEC (%) When you solve cos ( ac = 1 on a calculator, it gives you the answer Without using technology, use this to solve cos ( ) 2 for all possible values of x on the interval 0