3. The population of a town is decreasing at a rate of 6.2% per year. The city council believes they will have to close

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3 The Population Of A Town Is Decreasing At A Rate Of 6 2 Per Year The City Council Believes They Will Have To Close 1 (63.59 KiB) Viewed 49 times

3. The population of a town is decreasing at a rate of 6.2% per year. The city council believes they will have to close another elementary school when the population reaches 76 000. If there are currently 100 000 people living in the town, how long do they have before an elementary school will need to be closed? ✔✔ 4. The vertical position, h, in metres, of a Ferris wheel is modeled using the function h(t) = 7 sin(t-5)] + 12, where t is the time, in seconds, and h is the height in metres. (a) Determine the period and amplitude of this function. Explain the meaning of these quantities within the context of the question. ✓✓ (b) Calculate the height at t = 35 seconds. (c) Determine the first time that the height is 16 m. ✓✓ (d) When is the next time that this height is reached again? ✓✓