Answer:oh yeah I remember that
Step-by-step explanation:
That’s tuff
The empirical rule says that approximately 68% of a normal distribution falls within one standard deviation of the mean. In this case, this would include all values of the variable in the interval

.
Answer:
AB=30
AC=22.5
Step-by-step explanation:
8/15=12/x
x=22.5 (AC)
8/15=16/x
x=30 (AB)
Its 3 cause 160 x 4 is 640 , so 643 - 640 is 3 so the answer of the problem is 3
Answer:
its A
Step-by-step explanation:
If its one of these signs(<>) then its open and if its one of the signs with the line under it then its closed