Arock is thrown upward with a velocity of 21 meters per second from the top of a 22 meter high cliff, and it misses the cliff on the way back down. when will the rock be 9 meters from the water, below? round your answer to two decimal places.

Afurniture store has 1,500 chairs in storage. a manager uses three delivery receipts to simulate samples to check 100 chairs and note the number of brown chairs. suppose the actual number of brown chairs is 1,080. about how many brown chairs are

Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 −2.00 8.4 −8.4

Using only the digits 5, 6, 7, 8, how many different three digit numbers can be formed if no digit is repeated in a number?