Mathematics, 20.05.2021 19:20 nathaniel12
Which of the following are identities check all that apply a. cos(x+y)-cos(x-y)=2cosxcosy b. sin(x+y)+sin(x-y)=2cosxsiny c. cos(x+y)+cos(x-y)=2cosxcosy d. tan(x-pi)=tanx
Answers: 1
Mathematics, 22.06.2019 02:30
Determine which solution is correct for solving 5/7y=6 reciprocals.
Answers: 1
Mathematics, 22.06.2019 03:30
Solve the equation for y. -1 = 1/3y + 11. will give 5 stars if answered correctly!
Answers: 2
Mathematics, 22.06.2019 03:50
Arandom sample of n = 25 observations is taken from a n(µ, σ ) population. a 95% confidence interval for µ was calculated to be (42.16, 57.84). the researcher feels that this interval is too wide. you want to reduce the interval to a width at most 12 units. a) for a confidence level of 95%, calculate the smallest sample size needed. b) for a sample size fixed at n = 25, calculate the largest confidence level 100(1 − α)% needed.
Answers: 3
Which of the following are identities check all that apply
a. cos(x+y)-cos(x-y)=2cosxcosy b. sin(x+...
Mathematics, 10.03.2021 01:00
Mathematics, 10.03.2021 01:00
Physics, 10.03.2021 01:00
Chemistry, 10.03.2021 01:00
Mathematics, 10.03.2021 01:00
Chemistry, 10.03.2021 01:00
Mathematics, 10.03.2021 01:00
English, 10.03.2021 01:00
Law, 10.03.2021 01:00
Mathematics, 10.03.2021 01:00
Mathematics, 10.03.2021 01:00
Chemistry, 10.03.2021 01:00
Mathematics, 10.03.2021 01:00
Mathematics, 10.03.2021 01:00