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Mathematics 17 Online
OpenStudy (anonymous):

Can someone look over this if I got something wrong? Simplify: 9^9/9^3 A. 9^3 B. 9^6*** C. 9^12 D. 9^9 - 9^3 Simplify: 5^5 x 5^3 A. 5^2 B. 5^8*** C. 5^15 D. 8(5)

OpenStudy (anonymous):

What do you think the answers are?

OpenStudy (anonymous):

1.B 2.B

OpenStudy (anonymous):

Yep! your answers are correct! :)

OpenStudy (anonymous):

#2 is correct. Think about #1. Do you know how to divide exponents?

OpenStudy (anonymous):

Yes.

OpenStudy (anonymous):

How do you think you are supposed to do that?

OpenStudy (anonymous):

by adding?

OpenStudy (anonymous):

9^9/9^3 9^12

OpenStudy (anonymous):

no, that is how you multiply. what is 9/3?

OpenStudy (anonymous):

3 right?

OpenStudy (anonymous):

yeah. so which option in #1 has 3 as the exponent?

OpenStudy (anonymous):

A.

OpenStudy (anonymous):

right :)

OpenStudy (anonymous):

Thank you so much! but I have no idea how to do these 3 problems could you give me a hand?

OpenStudy (anonymous):

sure :)

OpenStudy (anonymous):

Rewrite the following (3sqrt(t))^2 Rewrite the following k3/2 Rewrite the following 3sqrt(a2)

OpenStudy (anonymous):

I can't read that. Is there anyway that you could type that in as an equation?

OpenStudy (anonymous):

I can try

OpenStudy (anonymous):

This is the only way I can think of http://www.wolframalpha.com/input/?i=%283sqrt%28t%29%29%5E2

OpenStudy (anonymous):

yeah. so rewrite the equation as 9t.

OpenStudy (anonymous):

:)

OpenStudy (anonymous):

But the answer are t3/2 t2/3 3/2t 2/3t

OpenStudy (anonymous):

I don't get it

OpenStudy (anonymous):

oh. well the link you sent me came out as 9t.

OpenStudy (anonymous):

Yeah, I know but it tells me to rewrite the problem. I'm so lost

OpenStudy (anonymous):

I'm sorry. :( I can't figure that out either. My best guess is that you square the t's so the answer would kind-of come out as 3/2t.

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