4 years ago

What is the value of the underlined digit? 625 #2

Mathematics

2 answers:

Komok [63]4 years ago

5 0

600+20+5
The answer would be 20

iVinArrow [24]4 years ago

3 0

20. it is in the tens place

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yan [13]

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3 years ago

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zalisa [80]

3)

$\bf ~~~~~~~~~~~~\textit{negative exponents}\\\\
a^{-n} \implies \cfrac{1}{a^n}
\qquad \qquad
\cfrac{1}{a^n}\implies a^{-n}
\qquad \qquad 
a^n\implies \cfrac{1}{a^{-n}}
\\\\
-------------------------------\\\\
\cfrac{-9}{2x^5}\implies \cfrac{-3^2}{2x^5}\implies \cfrac{-3^2}{1}\cdot \cfrac{1}{2}\cdot \cfrac{1}{x^5}\implies -\cfrac{1}{3^{-2}}\cdot 2^{-1}\cdot x^{-5}
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3 years ago

Simplify.<br> 8^15 : 8^-3<br> asap please

torisob [31]

Answer:

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