How do i get the solutions for this problem:
(x-4)^3 -(x^2) *(x-5)*(x+5)-2*(49x-6*(x^2)- 28)+...
Mathematics, 29.08.2019 09:00, halllawson
How do i get the solutions for this problem:
(x-4)^3 -(x^2) *(x-5)*(x+5)-2*(49x-6*(x^2)- 28)+(x+2)*((x^2) -2x+4) = 0
the solutions are:
x = -5
x = 0
x = 2
x = 5
Answers: 1
Mathematics, 21.06.2019 22:00, sebcbal
The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score
Answers: 1
Mathematics, 21.06.2019 22:30, thelonewolf5020
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
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