Aball is dropped from a height of 30 feet and each time it hits the ground it bounces 0.75 of the previous height. what is the height of the ball after it makes its third bounce? round to the nearest hundredth of a foot. a) 0.47 feet b) 9.49 feet c) 12.66 feet d) 16.88 feet

(a) (8%) compute the probability of an even integer among the 100 integers 1! , 2! , 3! , until 100! (here n! is n factorial or n*(n-1)*(n-2) *… 1) (b) (16%) compute the probability of an even integer among the 100 integers: 1, 1+2, 1+2+3, 1+2+3+4, …., 1+2+3+… + 99, and 1+2+3+… + 100

Technicians have installed a center pivot, circular irrigator for a farm that covers 25 acres. a.) how long is the irrigation boom (in feet) from the center pivot to its farthest extent? b.) if the irrigation boom makes 4 full revolutions in a day, how many miles does the end of the boom travel in 5 days?

Compute the standard deviation of the following set of data to the nearest whole number. 10, 10, 15, 20, 25