The answer is b life goes on
Answer:
See explanation
Step-by-step explanation:
Ana started the work nicely by multiplying out factors to get:\
She multiplied 
correctly using difference of two squares to get: 
Unfortunately: She made a mistake in multiplying 
she mistakenly got 
instead of 
. <em>She left out the coefficient of 2.</em>
Therefore the second step should have been:
The next step will now be:
This simplifies to
YOUR STUPID WHY WOULD YOU YOU HAVE IT THE QUESTION BUT NOT THE ANSWER STUPID
Answer:
A: 171.75
B: 170
Step-by-step explanation:
The mean (or average) can be found by...
- add all the numbers together (we will call this y)
- divide the total sum (or y) by the total amount of numbers used to add
Formula:
(x₁ + x₂ + x₃ + ... + xₙ) ÷ n
For A:
(172 + 130 + 173 + 212) ÷ 4 = 171.75
For B:
(136 + 184 + 168 + 192) ÷ 4 = 170
