Indicate which property is illustrated in step 8.
step 1: 2(3 + 4) - 41 = 1 + i
step 2: 23 + 8 - 41 = 1 + 1
step 3: 8– 2+ = 1+1
step 4: 8 - 21 - i = 1 + 1 - i
step 5: 8-31 = 1
step 6: 8-31 -8=1-8
step 7: -3r = -7
step 8:
step 9:
division property of equality
• a.
b.
distributive property
c.
simplification
d.
subtraction property of equality

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?