<span>Note that the mean (78 +90 +456 +676 + 111+ 381+ 21)/7 = 259
The differences (in absolute value - we're going to square later so it doesn't matter) between each piece of data and the mean are
181, 169, 197, 417, 148, 122, 238
Square each of these and add the results together to obtain 367452
Now your question depends on whether you want the sample standard deviation or population standard deviation - which you have not specified. In the first case divide by 6. In the second case divide by 7. We get roughly 61242 or 52493. The square root of each yields 247.47 or 229.11 depending on whether you want the sample sd or pop sd. The 4 choices imply you are looking for the latter, so the answer is A.i think</span>
Answer:
Y=60
Step-by-step explanation:
S+Y=90
S=(2*Y)-90
Y+2Y-90=90
3Y=180
Y=60
Plug back into S+Y=90
S+60=90
S=30
They are both divisible by 3 so we divide both by 3 and get
3(5+7)
Answer:
The Correct Answer On Edgen2020 Is
A) Linear pair postulate.
Good Luck!! :))
Answer:
look down
Step-by-step explanation:
A 2-column table with 6 rows. Column 1 is labeled x with entries 1, 2, 3, 4, 5, 6. Column 2 is labeled y with entries 14, 28, 42, A, B, C.
Find the relationship between the quantities in the table. Then use the relationship to calculate the missing values in the table.
The relationship between the quantities in the table is x
✔ × 14
equals y.
A =
✔ 56
B =
✔ 70
C =
✔ 84