Mathematics, 18.02.2021 07:50 Mariaisagon9050
A box contains 24 lightbulbs, of which four are defective. Three of the bulbs are chosen at random. What is the probability all the bulbs chosen work properly? What is the probability two work properly and one doesn’t?
Answers: 2
Mathematics, 21.06.2019 18:00
Liz is shipping a package to her friend.the maximum weight of a medium flat-rate box is 20 pounds,including the box which weighs 6 ounces.write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.
Answers: 2
Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .
Answers: 3
Mathematics, 21.06.2019 23:30
Which of the following statements would be sufficient to prove that parallelograms pqrs is a rectangle ?
Answers: 2
A box contains 24 lightbulbs, of which four are defective. Three of the bulbs are chosen at random....
Mathematics, 20.01.2021 22:20
Arts, 20.01.2021 22:20
Mathematics, 20.01.2021 22:20
Mathematics, 20.01.2021 22:20
Mathematics, 20.01.2021 22:20
World Languages, 20.01.2021 22:20
Physics, 20.01.2021 22:20
Mathematics, 20.01.2021 22:20
Mathematics, 20.01.2021 22:20
Physics, 20.01.2021 22:20
Mathematics, 20.01.2021 22:20