## anonymous one year ago Given: AB = CE CD = EF Prove: AB = DF Statement: AB = DF Reason: Substitution Property of Equality Statement: DE = DE Reason: Subtraction Property of Equality Statement: CE = DF Reason: Transitive Property of Equality Statement: CD = DE Reason: Substitution Property of Equality Statement: CE = EF Reason: Transitive Property of Equality

1. anonymous

2. anonymous

3. anonymous

if anyone helps ill become their fan

4. Michele_Laino

here is my resoning: $\Large \begin{gathered} DF = DE + EF = \hfill \\ = DE + CD = \hfill \\ = CE = \hfill \\ = AB \hfill \\ \end{gathered}$

5. anonymous

thx :D can you help me some more? how can you give medals just asking..

6. Michele_Laino

ok!

7. anonymous

how tho?

8. Michele_Laino

you have to click on the "Best Response" button

9. Michele_Laino

thanks! :)

10. anonymous

anytime :D can you help with a couple more?

11. Michele_Laino

ok!

12. anonymous

:D

13. anonymous

Points A(-2, 4), B(1, 3), C(4, -1) and D form a parallelogram. What are the coordinates of D? (5, 5) (0, 0) (1, -2) (1, 0) (3, 4)

14. Michele_Laino

hint: we have the subsequent drawing: |dw:1436446847339:dw|

15. Michele_Laino

what are the coordinates of point D?

16. anonymous

1,3

17. Michele_Laino

are you sure? hint: |dw:1436447202452:dw|

18. anonymous

lol yes its 1,0 xD i looked at b xD \

19. Michele_Laino

correct!

20. anonymous

(Does the happy dance)

21. Michele_Laino

:)

22. anonymous

can we do another one?