Wu. 5.2.4 Practice: Writing Expressions Math 6 Trimester B Points Possible: 5 Practice Presaius Valencia Morales Name: Date: Tips for Success . Read the assignment carefully and make sure you answer each part of the question or questions. Check your work when you're done. Your Assignment Todd and his friends are painting 5 equal sections of a wall. The wall is 10 feet tall, but its length is unknown. Each section will be a different color, so they need to know the area of each section. 10 Ft Total length unknown (x) 1. Write an expression for the total area of the wall. Explain how you came up with your expression. Write your answer in the space below. 2. To find the area of each section, what do you need to do to the total area? Write your answer in the space below.

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?