One polynomial identity that crops up often in various areas is the difference of squares identity:
A2-b2=(a-b) (a+b)
We meet this in the context of rationalising denominators.
51 snack in all because 18 + 23 = 51
Answer:
y=2
Step-by-step explanation: horizon shows where the dotted line crosses the y axis
The mean is simply the average of the total movies seen so..



the median is the middle number (or the average of the middle 2 numbers)
so if we line up the numbers in order and cross them out from both ends we get 12 & 14 so we take the average of the 2
Answer:
f ^-1 (x) =7X/5 - 2/5
Step-by-step explanation: