Sumira built a garden in her backyard that measured 29 inches by 40 inches and built a fence around it. Later on, she decided to change the size of It to 26 inches by 57 inches How much extra fence does she need to buy to build around her new garden?

Find the perimeter of the old garden, and of the new garden. Then subtract to find the difference.

Help ASAP

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?