What is the value of the expression 7–3? A. –21 B. Negative Exponents C. Negative Exponents D. 343

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What is the value of the expression 7–3? A. –21 B. Negative Exponents C. Negative Exponents D. 343

Mathematics
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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|dw:1441903391506:dw|do you know this?
you there?

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Other answers:

yes what do i do
hello
rekt m8
7 minus 3?
4
k hold on lemme see
oh bro
its not 7 minus 3
the 3 is an exponent
ok
so what do i do
|dw:1441904338660:dw|see the pattern?
yes
so we want to go the other direction for negative exponents. to do this we have to do the inverse operation of multiplication. do you know what the inverse operation of multiplication is?
no
well, technically, we multiply by the reciprocal... but ususally people just call it division.
|dw:1441904557762:dw|
ok
so if we are at \(7^3\) and we want to get to \(7^2\), we divide by 7 or multiply by 1/7... okay?
do you follow that?
ok
so let's take it a step further... let's figure out what \(7^0\) should be , using the pattern...
k
|dw:1441904754195:dw|
can you figure out what \(7^0\) is?
0
no... let's follow the pattern. what is the number above \(7^0\)?
you there?
yup
so what is the number above \(7^0\)
|dw:1441904990185:dw|
7
1/343
very good!!! now we use the pattern. to go down (negative direction) we divide by 7. what is 7 divided by 7?
it's the same as 7 times (1/7)...
-1
7 divided by 7 is -1 ??? i don't think so, try again
just 1 sorry
excellent!!!
|dw:1441905368853:dw|so can you figure out the next number? again, follow the pattern...
7 by one
? if you can use an expression or the the number
ok
so what is it... i don't understand what number "7 by one" represents.
don't be afraid... take your time and think, use the pattern and then respond. it's okay to make a mistake because i will help you to learn from it
sorry my computer went out
that's alright... what did you get?
i thihnk it is c
\(7^{-1}=\text{c?}\)
just so you know... my goal here is to help you understand these types of problems. it is not to just help you get the answer for this problem.

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