Answer:
The standard deviation will be: 2.1
Step-by-step explanation:
We know that standard deviation is basically the square root of variance.
Using the formula to calculate the standard deviation

As
so the standard deviation can be calculated as:
standard deviation 


Therefore, the standard deviation will be: 2.1
Answer: x = -1, -3
Step-by-step explanation:
For this case we have the following functions:

We must find
. By definition we have to:

So:

Finally, the composite function is:

Answer:

Answer:
D
Step-by-step explanation:
try all of them
3x + 2 = 5x - 8
Flip
5x - 8 = 3x + 2
Subtract both sides by 3x
2x - 8 = 2
Add both sides by 8
2x = 10
Divide both sides by 2
x = 5
That's your answer.
Have an awesome day! :)
From your friendly Helper-in-Training, collinjun0827