A car salesman sold three hybrid cars last week. The cars come in red, white, and black. A sale is listed as RWB if a red car wa
1 answer:
You might be interested in
The scale factor of dilation from ABC to is 0.333.
Step-by-step explanation:
Step 1:
First, we plot the coordinates of both triangles.
The coordinates of the triangle are as follows;
= (2, 3),
= (2, 1), and
= (3, 1).
The coordinates of triangle ABC are;
A = (4, 9), B = (4, 3), and C = (7, 3).
Step 2;
Next, we need to find the distances between at least two coordinates for both triangles.
The distances between vertical lines are found by calculating the difference in y values while for horizontal lines, the distances are found by calculating the difference between the x values.
The distance of , the distance of
.
The distance of AB the distance of BC
Step 3;
To calculate the scale factor, we divide the measurement after scaling by the same measurement before scaling.
In this case, it is the length of the AB.
So The scale factor for AB =
The scale factor for BC =
Answer:
The 95% confidence interval for the population mean daily protein intake is between 69.97g and 84.03g.
Step-by-step explanation:
We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of .
So it is z with a pvalue of , so
Now, find M as such
In which is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 77 - 7.03 = 69.97g.
The upper end of the interval is the sample mean added to M. So it is 77 + 7.03 = 84.03g.
The 95% confidence interval for the population mean daily protein intake is between 69.97g and 84.03g.