Mathematics
7 Online
OpenStudy (anonymous):
Which of the following expressions is true?
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OpenStudy (anonymous):
You didn't type any expressions?
OpenStudy (anonymous):
Yeah Im about to, give me a second
OpenStudy (anonymous):
lol sorry
OpenStudy (anonymous):
No worries lol
OpenStudy (anonymous):
A. 4^3 • 4^4 = 4^12
B. 5^2 • 5^3 > 5^5
C. 3^2 • 3^5 < 3^8
D. 5^2 • 5^4 = 5^8
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OpenStudy (anonymous):
B
OpenStudy (anonymous):
It works like addition when multiplying exponents
OpenStudy (anonymous):
Got it, thanks, can you help me with another one?
OpenStudy (anonymous):
sure
OpenStudy (anonymous):
though in retrospect I think it would be C because 3^7<3^8
I totally read the < as a= sorry.
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OpenStudy (anonymous):
Okay, are you sure?
OpenStudy (anonymous):
Which of the following expressions is true?
8^3 • 8^2 < 8^4
4^4 • 4^4 = 4^16
2^2 • 2^6 < 2^8
3^3 • 3^3 > 3^5
OpenStudy (rane):
c
OpenStudy (anonymous):
Are you sure?
OpenStudy (rane):
yes... i would say maybe if i wasn't sure
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OpenStudy (anonymous):
it can't be C
OpenStudy (anonymous):
Okay, sorry, haha, I just dont want to get it wrong
OpenStudy (rane):
y not?
OpenStudy (rane):
twilight
OpenStudy (anonymous):
How come? @TwilightSparkle
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OpenStudy (anonymous):
2^8=2^8...
OpenStudy (anonymous):
its this one: 3^3 • 3^3 > 3^5
because 3^6>3^5
OpenStudy (rane):
no!!!!
OpenStudy (anonymous):
uhm yea 729>243
OpenStudy (rane):
wht!!! 2^2 • 2^6 < 2^8
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OpenStudy (anonymous):
2^2*2^6=2^8
OpenStudy (anonymous):
2+6=8..
OpenStudy (rane):
yesss...... your point is???
OpenStudy (anonymous):
thus 2^8 isn't greater than 2^8
OpenStudy (anonymous):
its equal to it...
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OpenStudy (rane):
really.... then y did u choose B for the above q'
5^2 • 5^3 > 5^5
2 + 3 = 5
OpenStudy (unklerhaukus):
\[x^n\cdot x^m=x^{n+m}\]
OpenStudy (anonymous):
I didn't, i changed my answer to C. It fullout says "in retrospect i choose see because i didn't see that it was > instead of ="
OpenStudy (anonymous):
C*
OpenStudy (rane):
hm..ok
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OpenStudy (anonymous):
thanks anyway guys
OpenStudy (rane):
yw:)