Answer:
1.474
Step-by-step explanation:
Given that :
Population standard deviation, σ = 4
Sample size = 7
Confidence level = 99%
Since we ore using the population standard deviation, the we use the Z distribution table:
The margin of error :
Zcritical * σ/√n
Zcritical at 99% = 2.58
The margin of error :
2.58 * 4/√7
2.58 * 0.5714285
= 1.474
As suggested, let's use polar coordinates:
To get
We can simplify the expression to
And simplify to get
So, as , as well.
The solution is s
-3-34c+136=54
-34c+133=54
-34c=-79
c=79/34
feleetus
Step-by-step explanation:
Answer: A person can boost their immune system by taking in vitamins, also getting plenty of exercise and well as getting vaccinated. Also most important get plenty of rest and eat healthy.