4x^2+16x=20
Mathematics, 25.09.2019 18:40 solisemily62
❌to solve the equation below by completing the square, what is your first step?
4x^2+16x=20
a) add 8 to each side of the equation.
b) add 64 to each side of the equation
c) multiply both sides of the equation by 1/4.
d) multiply both sides of the equation by 1/8.
Answers: 1
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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
❌to solve the equation below by completing the square, what is your first step?
4x^2+16x=20
4x^2+16x=20
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