A parachutist's rate during a free fall reaches 90 meters per second. What is this rate in feet per second? At this rate, how many feet will the parachutist fall during 20 seconds of free fall? In your computations, assume that 1 mile is equal to 5280 feet. Do not round your answers.

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.

Amachine that produces a special type of transistor (a component of computers) has a 2% defective rate. the production is considered a random process where each transistor is independent of the others. (a) what is the probability that the 10th transistor produced is the first with a defect? (b) what is the probability that the machine produces no defective transistors in a batch of 100? (c) on average, how many transistors would you expect to be produced before the first with a defect? what is the standard deviation? (d) another machine that also produces transistors has a 5% defective rate where each transistor is produced independent of the others. on average how many transistors would you expect to be produced with this machine before the first with a defect? what is the standard deviation? (e) based on your answers to parts (c) and (d), how does increasing the probability of an event a↵ect the mean and standard deviation of the wait time until success?

Can someone me with my math problems i have a bunch. i will give brainliest and lots of pleeeaaasssee