Answer:
YZ = 1
XY = 1.5
XYZ 1.33
Step-by-step explanation:
Answer:
m = 1.643
Step-by-step explanation:
m = rise/run
= 23/-14
For this case we have that by definition, the equation of the line in the slope-intersection form is given by:
Where:
m: It's the slope
b: It is the cut-off point with the y axis
By definition, if two lines are parallel then their slopes are equal.
We have the following line:
Thus, the slope is:
Then 
So, the line is of the form:
We substitute the point
and find b:
Thus, the equation is:
Answer:
We are given
(a, b) ---------------> (a, −b)
we can see that
x-values of both points are 'a'
which is same
while y-value of first =b
y-value of second =-b
so, y becomes as -y
and we know that
when a function is reflected about x-axis
then y becomes -y
so, option-C.................Answer
<span>A medical researcher wants to investigate the amount of time it takes for patients' headache pain to be relieved after taking a new prescription painkiller. She plans to use statistical methods to estimate the mean of the population of relief times. She believes that the population is normally distributed with a standard deviation of 18 minutes. How large a sample should she take to estimate the mean time to within 4 minutes with 97% confidence?
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n = [z*s/E]^2
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n = [2.17*18/4]^2 = 96 when rounded up
</span>
