Joe is floating on a tube in a wave pool and his height above the bottom of the pool is modeled by a sinusoidal function. At t = 2 John reaches a maximum height of 11 feet above the bottom of the pool. At t = 9 seconds, Joe reaches a minimum height of 4 feet above the bottom of the pool. What is the equation in terms of cosine, that represents Joe's height above the bottom of the pool at time t?

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?

Sketch the vector field vector f( vector r ) = 8vector r in the xy-plane. select all that apply. the length of each vector is 8. the lengths of the vectors decrease as you move away from the origin. all the vectors point away from the origin. all the vectors point in the same direction. all the vectors point towards the origin. the lengths of the vectors increase as you move away from the origin.

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.