Answer:
a) -3.5
Step-by-step explanation:
The average rate of change of a function f(x) from x=a to x=b is given by:
We want to find the average rate of change of change of the given function from x=1 to x=4.
From the graph,


The average rate of change is:

a) is closest
If the p-value is greater than the level of significance (alpha), then you fail to reject the null hypothesis (H0). This is like saying we don't have enough evidence to reject the null hypothesis so we effectively accept it for now.
Answer is choice B) fail to reject the null hypothesis
22cm is the greatest
It should be greater than17(20-3)
and smaller than 23(20+3)
To get Density you do 9.45 divided by 3.5 equaling 2.7 and that is the density