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Mathematics 7 Online
OpenStudy (anonymous):

Which of the following expressions is true?

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

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.

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

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

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

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...

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

OpenStudy (anonymous):

thanks anyway guys

OpenStudy (rane):

yw:)

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