A gold mine has two​ elevators, one for equipment and another for the miners. The equipment elevator descends 7 feet per second. The elevator for the miners descends 14 feet per second. One​ day, the equipment elevator begins to descend. After 19 ​seconds, the elevator for the miners begins to descend. What is the position of each elevator relative to the surface after another 7 ​seconds? At that​ time, which elevator is​ deeper?

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²