Mathematics, 27.02.2020 18:44 bossdde
Jaime and Sam both factored the polynomial 2x2 + 10xy + 8y. Which student is
correct? Explain.
Jaime
2x+ + 10xy + 8y
2(x² + 5xy + 4y?)
2(x + y)(x + 4y)
Sam
2x + 10xy + 8y?
(2x + 2y)(x + 4y)
Answers: 3
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The pair of coordinates that do not represent the point( 5,150’) is a. (5,-210) b. (5,210) c. (-5,330) d. (-5,-30)
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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?
Answers: 3
Jaime and Sam both factored the polynomial 2x2 + 10xy + 8y. Which student is
correct? Explain....
correct? Explain....
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