Please help with question 4 3 and 2

4. Jordan is sitting in a rocking chair. The distance d(t ), between the wall and the rear of the chair varies sinusoidally with time t. At t=1 s, the chair is closest to the wall and d (1)=1.5m. At t=2, the chair is farthest from the wall and d (2) = 3.2m. a) What is the period of this function? What does it represent in this situation? b) What is the amplitude of this function? What does it represent in this situation? c) What is the equation of this sinusoidal function? d) Sketch the function for Osst $20 s. Distance (m) Time (sec) energies-11-0352....png Humphrey-and-Br...png 1581655448.png P-V2. Sandy lends her buddy $1000 for 5 years and charges him 6% simple interest per year. a) How much interest will Sandy have earned over the 5 years? b) What is the total amount of money that Sandy will be paid back at the end of 5 years? 3. Tim invests $5,000 at 9% per year, compounded quarterly for 4 years. a) Determine the value of the investment at the end of the term. b) Determine the amount of interest earned on the investment. MCR 3LL- Grade 11 University Exam Review 15 52....png energies-11-0352.,.png Humphrey-and-Br....png 1581655448.png