<span>Maybe xy is also given ........................</span>
Answer:
The scale factor is 1.
Step-by-step explanation:
Let k be the scale factor of a dilation of triangle ABC to form the image triangle A'B'C'.
The dilation is a magnification if
In this case, the preimage will be similar to the image triangle.
If
the dilation is a reduction. The image and pre-image will still be similar.
But if
the image is the same as the preimage.
We say the pre-image is congruent to the image triangle.
Calculate the area of the circle= pir^2
= 254,5 cm x height (20)
=45804,42 cm^3
Im pretty sure
The answer is x=17
Answer: e. test for a difference in two population means
Step-by-step explanation:
Since the researcher takes a random sample of patients and measures their cholesterol levels before and after a treatment cycle of the drug, then the two samples are matched pairs. The difference between both samples would be determined and the mean and standard deviation of this difference is calculated. This would be used to determine the test statistic.
Therefore, the type of hypothesis test that they should use is
e. test for a difference in two population means
