Question 4 10 Points A pendulum moving in simple harmonic motion is modelled by the function S(t) = - 5cos( ) 4), where is measured in inches and " is measured in seconds. Determine the first time when the distance moved is 4 inches. A 0.82 s B 2.6 s C 3.2 s D 9.9 s Question 5 10 Points Solve 2logs(v x) - log5(6x - 1) =0. A X = B X= C X =5 D X =6Question 7 10 Points The following image shows the graph of the function f(x) = V 4 - x2. 15- 1 0.5- -1.5 -05 0.5 15Find the area between the x-axis and the graph of (X) over the interval of [-2, 2] using the shaded squares. A 6.27 square units B 7.5 square units C 12.57 square units D 8 square units