A rock is thrown into a pool 72 inches deep. The rock sinks at a rate of 4 inches per second (s). The rock's height (h) above
the bottom of the pool is given by the equation h = 72 - 4s
After how many seconds will the rock be half way to the
bottom?

Is fgh ~ jkl? if so, identify the similarity postulate or theorem that applies.

The numbers on a football field indicate 10 yard increments. you walk around the perimeter of a football field between the pylons. you walk a distance of 30623 yards. find the area and perimeter of the indicated regions. write your answers as mixed numbers, if necessary. a. one end zone: perimeter: yd area: yd2 b. the playing field (not including end zones): perimeter: yd area: yd2 c. the playing field (including end zones): perimeter: yd area: yd2

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.