Can I get some help??? The function h(t)=−49t² + 98t models the height of a ball, h(t), in feet, t seconds after being launched upward. Which of the following is equivalent to this function and most easily reveals the length of time the ball is in the air?

A. h(t) = −49t (t+2)
B. h(t) = 98t − 49t²
C. h(t) = −49t (t−2)
D. h(t) = −49 (t² − 2t)

What is the order of these fractions from least to greatest 2/3 7/10 5/8 65/100

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

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?