The depth of the water, f(x) in meters for a particular body of water is given as a function of time, x, in hours after midnight by the function f(x) = 10 + 7.5 cos(0.2x). Find f'(x). '(x) = How quickly is the tide rising or falling, in meters per hour at 6am? (Round to 4 decimal places and be sure calculator is in radians) Answer: m/hr 12 Human body temperature fluctuates throughout the day. The function H(t) = 98.2 + 1.05 sin (1) models the body's temperature in degrees Fahrenheit at time t hours after 8 am. Find H'(t) and H'(8). H' (t) H'(8) = degrees per hour. degrees per hour. (Round numerical answers to four decimal places and be sure your calcualtor is in RADIANS.)