Mathematics
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OpenStudy (anonymous):
simplify square root of 5 times square root of 500.
Please help will give medals and will fan!!!!
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OpenStudy (anonymous):
\[\sqrt{5}*\sqrt{500}\]
OpenStudy (anonymous):
44
OpenStudy (anonymous):
what is 5 times 500?
OpenStudy (anonymous):
2500
OpenStudy (kc_kennylau):
What's its square root?
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OpenStudy (anonymous):
yes what is the square root of 2500?
OpenStudy (anonymous):
50
OpenStudy (anonymous):
The square root of 5 is approximately 2, and the square root of 500 is approximately 22, and 2 x 22 = 44.
OpenStudy (anonymous):
that is the answer!
OpenStudy (kc_kennylau):
@AnswerMyQuestions don't freaking approximate things when you don't freaking have to
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OpenStudy (anonymous):
thank you @hello1213
OpenStudy (anonymous):
Who said you don't?
OpenStudy (kc_kennylau):
I say so
OpenStudy (anonymous):
hello can you help me more plz
OpenStudy (anonymous):
You're welcome!
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OpenStudy (kc_kennylau):
One formula: \(\sqrt{ab}=\sqrt a\sqrt b\)
OpenStudy (anonymous):
0.125
OpenStudy (anonymous):
let's give @kc_kennylau a turn!
OpenStudy (kc_kennylau):
And \(\sqrt{\frac ab}=\frac{\sqrt a}{\sqrt b}\)
OpenStudy (anonymous):
\[\sqrt{8/18}\] sorry wrote it wrong
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OpenStudy (anonymous):
simplify
OpenStudy (kc_kennylau):
Simplify the fraction inside first
OpenStudy (anonymous):
1
OpenStudy (kc_kennylau):
Simplify 8/18 first
OpenStudy (kc_kennylau):
Notice that both 8 and 18 are even
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OpenStudy (anonymous):
4/9
OpenStudy (kc_kennylau):
Now apply square root to both the numerator (4) and the denominator (9)
OpenStudy (anonymous):
|dw:1395418884419:dw|
OpenStudy (anonymous):
\[1/\sqrt{8}\]
OpenStudy (anonymous):
A. 2/3
B. 2
C.-2/3
D.3/2
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OpenStudy (kc_kennylau):
What is the square root of 4? And that of 9?
OpenStudy (anonymous):
square root of 4 is 2 and of 9 is 3
OpenStudy (kc_kennylau):
Therefore the square root of 4/9 is...
OpenStudy (anonymous):
A. 2/3
B. 2
C.-2/3
D.3/2
OpenStudy (kc_kennylau):
I'm asking you...
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OpenStudy (kc_kennylau):
\[\sqrt{\frac49}=\frac{\sqrt4}{\sqrt9}=?\]