Answer:
Step-by-step explanation:
z = 2(cos7π/6 +isin7π/6)
cos7π/6 = cos(π/6+π) = - cos(π/6) = - √3 /2
sin7π/6 = sin(π/6+π) = - sin(π/6) = - 1 /2
so : z = 2( - √3 /2+i(- 1 /2))
z= - √3 - i .....(standard form)
<span>8/9 because its if you divide 8 by 9 you get the decimal 0.88888889 which is greater than 5/6's decimal which is 0.83333333. 1/8 decimal is 0.125, which is less than both 8/9 and 5/6.</span>
80/100*n=16
80n=1600
n=1600/80=160/8=20
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Original price: $20.00
Answer: For these 1,151 residents in 2010, we are 95% confident that the average number of days of "not good" mental health is between 3.40 and 4.24 days.
Step-by-step explanation: The survey 95% confidence interval is (3.4,4.24) days in a population of 1,151. What it means is General Social Survey is 95% confident the true mean of days residents are with mental health "not good" is between 3.4 days and 4.24 days.