Answer:
m = 
Step-by-step explanation:
To find the slope, we have to use the slope formula:
m =
.
Let
and
. Then
m = 
2.8x+x^2+13
<span>5.2x^3 +5x </span>hope this helps
105 because 4*18+33 equals 105
Answer:
C
Step-by-step explanation:
Well, the first useful step to find the Standard Deviation is to organize it into a table. Let's insert the information. The data set ={9,12,14,21} Mean = 14 n= quantity of observations, in this case: 4
1) In the first column, the data set. In the second column, the squared difference of each number minus the mean. The sum of the second column will be plugged into the ∑ formula. (Check below)
2) Notice that in the second row, where x value is 9. (x-xbar)²= (9-14)². Yuri has made that mistake, and He compromised all the calculations.