What is the slope of a line l, perpendicular to the line y = 6? A. Because y = 6 is a vertical line, line l has a slope of zero.
B. The slope of line l would be a negative reciprocal of 6. Line l has a slope of -1/6.
C. Because y = 6 is a horizontal line, line l has a slope of zero.
D. Because y = 6 is a horizontal line, line l has an undefined slope.

State one method by which you can recognize a perfect square trinomial.

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 is the scale factor proportion for the enlargement shown?