The height, h, in feet of the tip of the hour hand of a wall clock varies from 9 feet to 10 feet. which of the following equations can be used to model the height as a function of time, t, in hours? assume that the time at t = 0 is 12: 00 a. m.
a. h=0.5cos(pi/12t)+9.5
b. h=0.5cos(pi/6t)+9.5
c. h=cos(pi/12t)+9
d. h=cos(pi/6t)+9

What is the sum of the first 8 terms of the geometric series

What is the value of x? enter your answer in the box. x =

Harold wrote this equation to model the level of water in a pool over time. the variable x represents time in hours. f(x) = 3,500 - 225x which statements about the situation are true? check all that apply. the water level is rising. the water level is falling. the initial level of water in the pool was 3,500 units. the initial level of water in the pool was 225 units. the pool was empty after 14 hours. the water was 2,600 units high after 4 hours.