1. in your formula. Find a possible formula for the trigonometric function graphed below. Use z as the independent variable f( I) = help (formulas) 2. The pressure P (in pounds per square foot), in a pipe varies over time. Six times an hour, the pressure oscillates from a low of 100 to a high of 270 and then back to a low of 100. The pressure at time t = 0 is 100. Let the function P = f(t) denote the pressure in pipe at time t minutes. Find a possible formula for the function P - f(t) described above. f (t) = help (formulas) The volume of air contained in the lungs of a certain athlete is modeled by the equation v = 447 sin(47nt) + 866, where t is time in minutes, and u is volume in cubic centimeters. What is the maximum possible volume of air in the athlete's lungs? Maximum volume= 1313 cubic centimeters What is the minimum possible volume of air in the athlete's lungs? Minimum volume= 419 cubic centimeters 3. How many breaths does the athlete take per minute? breaths per minute