Answer:
Step-by-step explanation:
x² - y² = (x + y)(x-y)
c² - (5b - 3a)² = (c + [5b -3a]) ( c - [5b - 3s] )
= (c + 5b - 3a) (c - 5b + 3s)
Step-by-step explanation:
equation of the line passing through two points
x-x1/x2-x1=y-y1/y2-y1
x-(-8)/1-(-8)=y-2/9-2
x+8/9=y-2/7
7x+56=9y-18
9y=7x+56+18
y=7/9x+74/9
y=mx+b m is the slope
so m=7/9
there is a short way showing slope shown in the picture
Answer: the answer is 0.435
Step-by-step explanation:
Answer:
Variance = 4.68
Step-by-step explanation:
The formula for the variance is:

Where:

The mean can be calculated as each value multiplied by its probability


Replacing the mean and the summatory of X:
