## anonymous 4 years ago Please help ... Evaluate : Sqr Rt Of 81 + 3^2 - 6 - Sqr Rt Of 16 .....

1. lgbasallote

what is $$\sqrt{81}$$?

2. lgbasallote

what do you think is the value of that?

3. anonymous

its 5 xD

4. anonymous

9-4 = 5 ow im wrong 3^2 is not equal to 6 so its $\sqrt{84} - \sqrt{16}$ I think its $2\sqrt{21} + 4$ I am not quite sure but it can be simplified the two will not exist and 4 will be 2

5. anonymous

8

6. lgbasallote

?

7. lgbasallote

go on...keep shooting random guesses...im sure you'll hit the right one someday

8. anonymous

$\sqrt{81}+3^2-6-\sqrt{16}$=9+9-6-4=8

9. anonymous

if thats the question then the answer is 8 for sure.... :)

10. anonymous

Thank you so muchh :) hal_stirrup :D

11. anonymous

welcome @ngiee0118

12. anonymous

@Ingiee0118

13. anonymous

So your good at math ...? Can you help me with another question ? pleaseeeeeee .? :))

14. anonymous

i can try

15. anonymous

you can be my fan and so do i ?

16. anonymous

Which set of line segments with the given lengths form a right triangle? A ) 9, 27, 81 B ) 10, 24, 38 C )14, 16, 22 D) 15, 36, 39

17. anonymous

There i am a fan :)

18. anonymous

nice

19. anonymous

So can you help me with that question ?

20. anonymous

its being some time since i did trig. i fine out.

21. anonymous

Huh ...?

22. anonymous

ok use pythagorean theorem, a^2 + b^2 = c^2

23. anonymous

Gur ... Okay thankyou (:

24. anonymous

25. anonymous

here is how its done. A ) 9, 27, 81 let 9=a , b=27 and c=81 the pythagorean theorem, a^2 + b^2 = c^2 so plug in the values and see if a^2 + b^2=c^2 .

26. anonymous

if this hold the you have the right answer. If not then try the B and c and D. THATS what i did and found out D IS the right answer

27. anonymous

Thankyouu(: So much !

28. anonymous

welcome. is that happy or sad face?

29. anonymous

HAPPY (:

30. anonymous

ok thats my happy face :)

31. anonymous

:D