Answer:
The margin of error is 30.22
Step-by-step explanation:
Sample size 19(lesser than 30), and we only have the sample standard deviation. So we use the t-distribution.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 19 - 1 = 18
Now, we have to find a value of T, which is found looking at the t table, with 18 degrees of freedom(y-axis) and a confidence level of 0.995(
). So we have T = 2.878
The margin of error is:
M = T*s = 10.5*2.878 = 30.22
"More than" indicates addition, and "product" indicates multiplication.
The inequality is:
5 + 8n >= 100
Now we can solve for all positive values of n:
5 + (-5) + 8n >= 100 + (-5)
8n >= 95
8n/(8) >= 95/(8)
n >= 11.875
So all positive values of n include everything between 11.875 and positive infinity, inclusively.
Answer:
I will if you will i need some badly
Step-by-step explanation:
Answer:
16
Step-by-step explanation:
3+5×5-9÷3×4
3+25-3×4
3+25-12
3+13
16
All the numbers listed are rational, since they can all be represented as a fraction, EXCEPT "2 in the house thingy", which I suppose is
.
This last one is irrational, because it cannot be represented as a finite fraction.
The following is a check to make sure:
1/3 is already a fraction
2/7 is already a fraction
2 in the house thingy =
cannot be converted into a finite fraction.
3.624 = 3624/1000 is a fraction
0.6 repeat = 2/3 is a fraction
0.87 repeat = 87/99 = 29/33 is a fraction
-5 = -5/1 is a fraction.
