The standard error of the mean is the standard deviation which is 6.50
Answer:
4th choice: I and IV only
Step-by-step explanation:
Change the form of the given equation to standard form.
y = -2/3 x + 2
3y = -2x + 6
2x + 3y = 6
Now compare this equation with the 4 choices.
Any equation that has the same x- and y-terms but a different constant term is parallel.
I. is parallel.
II. and III. are not parallel.
Look at IV.:
4x + 6y = 3
Divide both sides by 2:
2x + 3y = 3/2
IV. is also parallel.
Answer: 4th choice: I and IV only
Step-by-step explanation:
Consider the provided multiplication.
We need to use associative property of multiplication.
Associative property of multiplication:

Now use the above property and solve the provided multiplication:



The multiplication is verified by associative property.
Answer:
B. 7y - 15
Step-by-step explanation:
10y - 3(y+5)
= 10y -3y - 15
= 7y -15