supsavannah 2 years ago Help 3 questions, will return help if needed! Also will fan and give medal!

1. supsavannah

Simplify

2. supsavannah

What is the first quartile of the data set below? 275, 257, 301, 218, 265, 242, 201 201 230 257 218

3. supsavannah

Simplify |dw:1366652053866:dw|

4. supsavannah

5. supsavannah

You mean question 2?

6. briannashepard

yes

7. supsavannah

How did you get that?

8. supsavannah

and do you know how to do the other 2 because i don't know how to do those what so ever!

9. JAMG

just add or subtract across and you will get another 2x2 matrix

10. JAMG

the last one just multiply by -.5 and you get half the numbers but negative

11. supsavannah

Ok hold on i'm going to see if i get one of the answer choices

12. supsavannah

For the third one, for the bottom numbers i'm getting decimals and that isn't in the choices.

13. supsavannah

i'm muliplying -.5 by -2 and getting -2.5

14. JAMG

well basically you are multiplying by 1/2 so whats half of 10

15. supsavannah

5 i got that and then the next one would be 4 but the last two bottom numbers aren't right because i'm getting decimals.

16. JAMG

the other is -2 whats half of this

17. supsavannah

-1

18. JAMG

|dw:1366653173747:dw|so now you get your matrix

19. supsavannah

So all four of them will be negative, right?

20. JAMG

opposite of what they are

21. supsavannah

ok, so thats the answer ^^^?

22. JAMG

:)

23. supsavannah

Can you help with the other one because the +2 threw me off.

24. JAMG

|dw:1366653299824:dw|

25. JAMG

multiply the 2 first and just add across

26. supsavannah

So that's the answer? ^^ thanks so much :)

27. JAMG

np :D

28. supsavannah

is that first number supposed to be a 6?

29. supsavannah

Nevermind, thanks :)

30. JAMG

yes