What is the center of the circle described by the equation (x - 2)^2 +(y + 7)^2 =169 A (2, 7)
B (-2, -7)
C (2, -7)
D (-2, 7)

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d? are he re

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?

Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3