I think you might be referring to the definite integral,

Recall the definition of absolute value:

Then
if
, and
is
. So spliting up the integral at <em>x</em> = 1, we have

The rest is simple:

Answer:
Step-by-step explanation:
Itś 5n²
A. the answer is 5. it is less than 12 3*5=15-6=9
First quartile would 65 because....
well first order the numbers around : 55, 65,72,73,88,90,100
the median is 73, the first quartile in the medians of the numbers lower than the whole sets. That means in the subset of the numbers the median would be: 55, 65, 72.
crossing out 55 and 72 you have 65.