The constant of proportionality will be same as the slope of the line. Let's take two points from the line: (0,0) and (1,2)
The slope for a line that passes through two points and is:
Substitute the two points into this formula for slope and we have:
After solving and simplifying, we get
Thus, the slope of the line is 2. This means that the constant of proportionality is 2. Let me know if you need any clarifications, thanks!
~ Padoru
Answer:
Confidence interval: (21.9, 32.9).
Step-by-step explanation:
We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.
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 = 26 - 1 = 25
98% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 25 degrees of freedom(y-axis) and a confidence level of . So we have T = 2.485
The margin of error is:
In which s is the standard deviation of the sample and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 27.4 - 5.5 = 21.9 hours
The upper end of the interval is the sample mean added to M. So it is 27.4 + 5.5 = 32.9 hours
Confidence interval: (21.9, 32.9).
I believe is distributive property...
Answer:
X= and Y= 8
Step-by-step explanation:
i hope this helps and i hope you have a good day and I also hope you do well on your quiz
Answer:
Step-by-step explanation:
(-4 + 3)/2= -1/2
(-2 + 3)/2= 1/2
(-1/2, 1/2) the midpoint