Answer:

And the can be founded with this formula:


And rounded to the nearest tenth we got 
Step-by-step explanation:
For this case we have the following data given:
8, 11, 17, 7, 19
The first step is calculate the sample mean with this formula:

And replacing we got:

And the deviation can be founded with this formula:

And replacing we got:

And rounded to the nearest tenth we got 
Answer:
the wall is 66 inches long
Step-by-step explanation:
hope this helps :)
I can’t do it rn so just dm me later
Answer:
the total will be 1
Step-by-step explanation:
ok so the denomitor are matching so you can add straight across
1/3 +2/3 = 3/3
3/3 = 1 whole so there fore your answer is 1
Angie<3 have the best of best day today
Answer:
Given the expression:
1.

we know:

then;

Therefore, the value of expression
is -16 i.e negative.
2.

we know:


then;

Therefore, the expression
is 16 i.e Positive.
3.

we know:

then;

Therefore, the expression
is 16 i.e Positive.