Which is 1024 written as a power of a number?
A.
5122
B.
45
C.
54
D.
2564
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OpenStudy (mathmale):
You've typed:
" B. 45." Is there any chance that you actually meant \[4^5?\]
OpenStudy (mathmale):
|dw:1463713557248:dw|
OpenStudy (tronedude):
A 512^2
B 4^5
C 5^4
D 256^4
Sorry
OpenStudy (mathmale):
Critical difference! Have you tried evaluating any of these four possible answers?
Does your calculator do exponentiation? If so, find the value of 512^2, or \[512^2\]
OpenStudy (tronedude):
Yea sorry forgot it did not automatically do it for me
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OpenStudy (mathmale):
Please find the square of 9.
OpenStudy (tronedude):
3
OpenStudy (tronedude):
Hello?
OpenStudy (tronedude):
@mathmale
OpenStudy (mathmale):
3 is actually the square root of 9, not the square of 9.
"The square of 9" is indicated by 9^2,
or\[9^2.\]
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OpenStudy (mathmale):
What is it? Use your calculator.
OpenStudy (tronedude):
81
OpenStudy (mathmale):
Much better.
What's the square root of 625?
OpenStudy (tronedude):
25
OpenStudy (mathmale):
Now for your Option A: What is 512^2?
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OpenStudy (tronedude):
262144?
OpenStudy (mathmale):
Right. Obviously that's not equal to 1024.
Discard A as an option.
Next: B. What is 4^5?
OpenStudy (tronedude):
1024
OpenStudy (tronedude):
Thanks for your help @mathmale
OpenStudy (mathmale):
Identical to the number in the question. So? Your response?
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