WILL GIVE BRAINLEST
A projectile is launched upward from a 20 foot tall platform at an initial velocity of 300 feet per second. The height of
the projectile can be modeled using the equation h(t) =-167 +300++ 20 where t is the time in seconds since the
launch.
Part A
At what time does the projectile reach the maximum height? (Round to the nearest tenth of a second.) Part B. Determine the maximum height of the projectile (round to the nearest foot)

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?