Please help ...
Evaluate :
Sqr Rt Of 81 + 3^2 - 6 - Sqr Rt Of 16 .....
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OpenStudy (lgbasallote):
what is \(\sqrt{81}\)?
OpenStudy (lgbasallote):
what do you think is the value of that?
OpenStudy (anonymous):
its 5
xD
OpenStudy (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
OpenStudy (anonymous):
8
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OpenStudy (lgbasallote):
?
OpenStudy (lgbasallote):
go on...keep shooting random guesses...im sure you'll hit the right one someday
OpenStudy (anonymous):
\[\sqrt{81}+3^2-6-\sqrt{16}\]=9+9-6-4=8
OpenStudy (anonymous):
if thats the question then the answer is 8 for sure.... :)
OpenStudy (anonymous):
Thank you so muchh :) hal_stirrup :D
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OpenStudy (anonymous):
welcome @ngiee0118
OpenStudy (anonymous):
@Ingiee0118
OpenStudy (anonymous):
So your good at math ...? Can you help me with another question ? pleaseeeeeee .?
:))
OpenStudy (anonymous):
i can try
OpenStudy (anonymous):
you can be my fan and so do i ?
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OpenStudy (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
OpenStudy (anonymous):
There i am a fan :)
OpenStudy (anonymous):
nice
OpenStudy (anonymous):
So can you help me with that question ?
OpenStudy (anonymous):
its being some time since i did trig. i fine out.
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OpenStudy (anonymous):
Huh ...?
OpenStudy (anonymous):
ok use pythagorean theorem, a^2 + b^2 = c^2
OpenStudy (anonymous):
Gur ... Okay thankyou (:
OpenStudy (anonymous):
the answer is D
OpenStudy (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 .
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OpenStudy (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
OpenStudy (anonymous):
Thankyouu(: So much !
OpenStudy (anonymous):
welcome. is that happy or sad face?
OpenStudy (anonymous):
HAPPY (:
OpenStudy (anonymous):
ok thats my happy face :)
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