Answer:
17
Step-by-step explanation:
Let the two "middle" vertexes be x1 and x2, and let the "lower" vertex be y. We know that
Therefore x1=x2. We'll call that value just x.
But now we have to be careful, because
Simplifying we can get the value of x:
Now, substituting back in, we get
So, the sum of all vertexes is equal to
A.
It is exponential because the x is listed as an exponent rather than a variable attached to a coefficient.
Answer:
Step-by-step explanation:
To find it we will divide the miles from hours
= 110 ÷ 2 = 55
165 ÷ 3 = 55
220 ÷ 4 = 55
The answer is 55
Answer:
5
Step-by-step explanation:
The interquartile range is the difference between the upper quartile and the lower quartile.
First find the median.
The median is the middle value of the data set arranged in ascending order
1 5 5 7 9 ← data in ascending order
↑ median
The lower quartile is the middle value of the data to the left of the median. If there is not an exact middle then it the average of the values on either side of the middle.
1 5
↑ lower quartile = = 3
The upper quartile is the middle value of the data to the right of the median.
7 9
↑ upper quartile = = 8
Thus
interquartile range = 8 - 3 = 5
Step-by-step explanation:
1