Iwill give you brainliest. simplify the ratio 120 cm / 1 m. a 1 / 1 b 2/1c 5 / 6d 6 / 5

What is the product of the radical expression. (7-2square root) (8+2 square root)

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

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?