Answer:
this is only one functions, it means all is correct.
2 candies for each kid
explanation- if 6+7= 13 then there is 6 kids and 6 divided by 3 kids is 2 candies
Answer:
9x^2 - 49y^2
Step-by-step explanation:
Answer:
kerri's speed is 50 MPH (miles per hour)
Step-by-step explanation:
You look at the one, and follow the line upward until it stops, and that shows the speed, per hour. I know thats correct so i hope this helps you and good luck on the rest of the test :)
Answer:
90
Step-by-step explanation:
The sum of squares of the deviation from mean=sum(x-xbar)²=?
x
12
6
15
9
18
12
xbar=sumx/n
xbar=(12+6+15+9+18+12)/6=72/6=12
x x-xbar (x-xbar)²
12 12-12=0 0
6 6-12=-6 36
15 15-12=3 9
9 9-12=-3 9
18 18-12=6 36
12 12-12=0 0
sum(x-xbar)²=0+36+9+9+36+0=90
So, the sum of squares of the deviations from the mean is 90.