Mathematics, 03.02.2021 01:00 tcchef6
Jillian is trying to find out where the fifth grade class would like to their graduation. She randomly selected 50 students
A) Yes but she should also survey their parents
B) No, she really should survey the entire fifth grade class
C)Yes, by randomly selecting them she will get a representative sample
D) No, she should just survey the first 50 people she finds to make it easier.
Answers: 3
Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) β sinh2(x) = 1 and (b) 1 β tanh 2(x) = sech 2(x). solution (a) cosh2(x) β sinh2(x) = ex + eβx 2 2 β 2 = e2x + 2 + eβ2x 4 β = 4 = . (b) we start with the identity proved in part (a): cosh2(x) β sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 β sinh2(x) cosh2(x) = 1 or 1 β tanh 2(x) = .
Answers: 3
Mathematics, 21.06.2019 20:10
In the diagram, the ratios of two pairs of corresponding sides are equal to prove that almn - axyz by the sas similarity theorem, it also needs to be shown that x 6 z un z zz un = 2x zlΙzz lezy
Answers: 1
Mathematics, 21.06.2019 21:30
Yesterday, george drank 1 small bottle and 2 large bottles, for a total of 1,372 grams. the day before , he drank 1 small bottle and 1 large bottle, for the total of 858 grams. how many grams does each bottle hold?
Answers: 1
Jillian is trying to find out where the fifth grade class would like to their graduation. She random...
Mathematics, 02.03.2020 19:48
Mathematics, 02.03.2020 19:48
Business, 02.03.2020 19:48
Computers and Technology, 02.03.2020 19:48