. If α and β are zeroes of x*2 – 4x + 1, then 1/α + 1/β – αβ is
3
5
-5
<...
Mathematics, 04.06.2020 20:58, maddy121209
. If α and β are zeroes of x*2 – 4x + 1, then 1/α + 1/β – αβ is
3
5
-5
-3
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
Mathematics, 21.06.2019 23:00, kayvontay4
The coordinate grid shows a pentagon. the pentagon is translated 3 units to the right and 5 units up to create a new pentagon. what is the rule for the location of the new pentagon?
Answers: 3
Mathematics, 22.06.2019 01:00, laylalucifer
Asandwich shop has 18 tables. each table seats up to 4 people. to find the greatest number of people that can be seated, you can solve p4 ≤ 18. which step is the best way to solve the inequality? plz asap i repeat plz
Answers: 2
History, 18.11.2019 21:31
Mathematics, 18.11.2019 21:31
History, 18.11.2019 21:31
Biology, 18.11.2019 21:31
Physics, 18.11.2019 21:31
Physics, 18.11.2019 21:31