Answer:
The product is the difference of squares is 
Step-by-step explanation:
Explanation
- The given expression is (x y-9)(x y+9).
- We have to multiply the given expression.
- Square the first term xy. Square the last term 9 .
Answer: Quedarían nueve
Step-by-step explanation:
Standard error of the mean is computed by:
Standard error = SD/ sqrt N
Where:
N is the sample size
SD is the standard deviation
To get the standard deviation, you need to get the sqrt of
the variance = sqrt 9 = 3
So plugging in our data:
Standard error = 3 / sqrt (16)
= 0.75
Zx because letters always have to line up woth each other c is place z and a is place x (i loved this unit )
3 and 4 because girls might like the school while boys don't and because men might hate the towel but women might love it.
