Answer: Graph first and fourth.
Step-by-step explanation:
If a function is reflected through line y=x,, we obtained an inverse function of that function.
In first graph,
The function is reflected through line y = x,
Hence, in this graph we obtained inverse functions.
In second graph,
The function is shifted horizontally,
This is why we did not get an inverse function.
In third graph,
The function is reflected through x-axis,
This is why we did not get the inverse of the function.
In fourth graph,
The function is reflected through line y = x,
Hence, in this graph we obtained inverse functions.
Answer:
The 90% confidence interval for the true mean lifespan of this product is between 13.1 and 16.9 years.
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 = 50 - 1 = 49
90% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 49 degrees of freedom(y-axis) and a confidence level of 
. So we have T = 1.6766
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 15 - 1.9 = 13.1 years
The upper end of the interval is the sample mean added to M. So it is 15 + 1.9 = 16.9 years
The 90% confidence interval for the true mean lifespan of this product is between 13.1 and 16.9 years.
Each student should do 1/4 of one board or 1/8 of both boards. This is because 8÷2 is 4, which means 4 people need to work together on one board.
Answer:
<u>The best prediction will be B) 35 </u>
Step-by-step explanation:
By looking at the scatterplot ,
<em>we can see that it the City MPG vs Highway MPG approximately falls on a straight line.</em>
we can either find the slope of it ( which might be a little out of syllabus ) or <em>we can extend the line connecting the maximum number of points.</em>
When we do so, We get a line as attached in the diagram.
And we extend it.
<em><u>From the graph attached we find that the value of City MPG falls somewhere in between the lines of 30 and 35</u></em><u> (</u><em><u> </u></em><u>though this is just and approximation).</u>
thus the more appropriate answer would be : 35
Answer:
A Is the correct answer...
