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OpenStudy (anonymous):
@emmathis
OpenStudy (anonymous):
wiil give medal and fan
OpenStudy (anonymous):
Divide?
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
3/64=3/64 is cannotbe simplified.
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OpenStudy (anonymous):
@StudyGurl14
OpenStudy (anonymous):
OpenStudy (anonymous):
@emmathis
OpenStudy (anonymous):
pls help me
OpenStudy (studygurl14):
Okay, so
\(\large\sqrt[3]{64}\)
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OpenStudy (anonymous):
yes
OpenStudy (studygurl14):
This is the same thing as writing \(\large 64^{\frac{1}{3}}\)
OpenStudy (studygurl14):
Basically, what you're trying to find is a value, that when multiplied against itself three times, equals 64. Does that make sense?
OpenStudy (anonymous):
no
OpenStudy (studygurl14):
Okay. So...for example.
\(\large\sqrt[3]{8}=2\)
Because...
\(\large 2^3 = 8\)
Now does it make sense?
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OpenStudy (anonymous):
so the answer is 8
OpenStudy (anonymous):
????????????
OpenStudy (anonymous):
@StudyGurl14
OpenStudy (studygurl14):
No...I didn't say that.
OpenStudy (studygurl14):
I was just giving an example
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OpenStudy (studygurl14):
What number, when multiplied by itself three times, equals 64?
OpenStudy (anonymous):
i dont know
OpenStudy (studygurl14):
Try. Just plug in some numbers.
\(\large 3^3 = (3)(3)(3) = 9(3) = 27\)
\(\large 27\neq 64\), so 3 is NOT the answer. Since 27 is smaller than 64, you know that the answer is \(\large\sqrt[3]{64}\) has to be bigger than 3.
OpenStudy (anonymous):
A.
2
B.
4
C.
8
D.
262,144
OpenStudy (anonymous):
@StudyGurl14
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OpenStudy (studygurl14):
Well...since 3 doesn't work, neither will 2, because it is too small. We already ruled out 8. and D is way too big. So...what answer choice is left?