Answer:
![-2.7 g/min](https://tex.z-dn.net/?f=-2.7%20%20g%2Fmin)
Step-by-step explanation:
Given: a graph
To find: the average rate of change of the amount of the element over the 10-minute experiment
Solution:
A rate of change of one quantity with respect to another quantity is known as rate of change. If y is the dependent variable and x is the independent variable then average rate of change = change in y /change in x.
From the graph,
change in x (time) =
minutes
change in y ( amount of the element) =
g
So, average rate of change = ![\frac{-26.78}{10} =-2.7 g/min](https://tex.z-dn.net/?f=%5Cfrac%7B-26.78%7D%7B10%7D%20%3D-2.7%20%20g%2Fmin)
The answer is letteer C. You just have to multiply 9 and pi
Answer:
h≈2.86
Step-by-step explanation:
As we know that
x=x0*[1/2]n
putting the values
375=3000*[1/2]n
375/3000=<span>[1/2]n
</span>1/8=<span>[1/2]n
simplify
[1/2]3=</span><span>[1/2]n
by cancelling them
so n=3
so it will take 3 minutes
hope it helps</span>
Because they show exactly how much of something is there/needed.