The parabola defined by
y = a(x - h)² + k
has its vertex at (h,k).
After a shift by h units right, followed by a shift of k units vertically, the parabola is defined by
y = a(x - 2h)² + 2k
which has its vertex at (2h, 2k).
Answer: The vertex gets shifted by h units horizontally and k units vertically.
Answer:
C. 50
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence level of 
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of 
.
The margin of error is:
The higher the margin of error, the wider an interval is.
As the sample size increases, the margin of error decreases. If we want a widest possible interval, we should select the smallest possible confidence interval.
So the correct answer is:
C. 50
If the width is 9x², then the length is 27x^5+9x^4-18x^3/9x², which equals 3x³+x²+2x. ☺☺☺☺
<h3>The medians does'nt support the conclusion</h3>
<em><u>Solution:</u></em>
Given that,
Robin's scores: 99, 108, 102, 107, 119
Order the number from least to greatest
99, 102, 107, 108, 119
Median is the middle value of data set
Median is 107
Evelyn's scores: 125, 137, 138, 145, 145
Order the number from least to greatest
125, 137, 138, 145, 145
Medain is 138
The median of Evelyn's scores is greater than the median of Robin's
Therefore, the medians does'nt support the conclusion.
