Atowe3006
Please help. Will give medal.
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ethompsonn
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kk, what is it?
jiteshmeghwal9
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Yup, plz tell us wht's ur question ?
hba
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@Atowe3006 Sure,What is the question mam ?
Atowe3006
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\[-9m ^{-2}n ^{5}*2m ^{-3}n ^{-6}\]
tcarroll010
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You merely add exponents of like bases:\[-18m ^{-5}n ^{-1}\]and multiply the numerics.
hba
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Let me clear the point,
\[\huge\ a^x * a^y=a^{x+y}\]
Atowe3006
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Would it be a fraction?
Atowe3006
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Since there is negatives?
tcarroll010
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So, for the base "m", you add -2 and -3 to get -5. You could represent it as a fraction.\[\frac{ -18 }{ m ^{5}n }\]
tcarroll010
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Yes, because the exponents are negative, they can go into the denominator.
Atowe3006
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Thank you so much, Can you please help me with some others? I keep watching the video my teacher gave us to watch but I barely understand it.
tcarroll010
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Good luck in all of your studies and thx for the recognition! @Atowe3006 I'll try to help with more. And you are welcome very much!
Atowe3006
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3. A rectangular pasture has a fence around the perimeter. The length of the fence is \[16x ^{7}\] and the width is \[48x ^{4}\]. What is the area of the pasture? (1 point)
Atowe3006
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And no problem (:
Atowe3006
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and 21,504 isn't an answer.
tcarroll010
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np. A(rea) = (l)(w) =\[(16x^{7})(48x ^{4}) = 768x ^{11}\]where you add the 4 and 7 for the like base "x" and just multiply 16 by 48.
Atowe3006
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Oh!!! Omfg that was so blonde of me. Hah hah! I really appreciate you helping.
tcarroll010
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We all have little slip-ups. I do them all the time!
jiteshmeghwal9
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\((-9*2)m^{-2}.m^{-3}.n^5. n^{-6}\)
jiteshmeghwal9
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\(\LARGE{-18m^{-2+(-3)}.n^{5+(-6)}}\)
tcarroll010
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A good way to remember that you add exponents for like bases when multiplying is from the following simple example:\[2^{2}2^{3} = (4)(8) = 32 = 2^{5}\]If you can reconstruct that when you have a "blonde" moment, you'll do great!
jiteshmeghwal9
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i think u can solve it further
Atowe3006
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Thank you!!!
tcarroll010
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you're welcome!