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3 years ago

14

Write an expression that represents "the sum of x and itself". Type your answer in the space provided. Use only lower case lette

rs and do not use spaces in your answer.

1 answer:

Nikolay [14]3 years ago

5 0

Either of the following is such a sum:

x+x
2x

The former is more recognizable as matching the given English expression, but the latter is the same thing, in simplified form.

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13 - 6.7 = 0.010 x 13.9=. 8.4/2=. 0.045/0.15=. 1.56/13= 4/0.3 please put work please !!!!!!

Kay [80]

1= 6.3

2= 0.139

3= 4.2

4= 0.3

5= .12

6= 13.3 repeated

hope this helps

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3 years ago

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allsm [11]

The answer is 7418.

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Write y-8=-7(x+2) in standard form

vladimir2022 [97]

Answer:

y-8=(7)/(5)*(x+10)

Step-by-step explanation:

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I really don’t understand this and just need an explanation of how to do it.

sertanlavr [38]

$\bf ~\hspace{12em}\left( \cfrac{2n}{-3n\cdot -2n^2} \right)^4
\\\\[-0.35em]
\rule{34em}{0.25pt}\\\\
\cfrac{2n}{-3n\cdot -2n^2}\implies \cfrac{1}{-3n}\cdot \cfrac{2n}{-2n^2}\implies \cfrac{1}{-3n}\cdot \cfrac{2n}{2n\cdot -n}\implies \cfrac{1}{-3n}\cdot \cfrac{2n}{2n}\cdot \cfrac{1}{-n}$

$\bf \cfrac{1}{-3n}\cdot \boxed{1}\cdot \cfrac{1}{-n}\implies \cfrac{1}{-3n\cdot -n}\implies \cfrac{1}{3n^2}
\\\\[-0.35em]
\rule{34em}{0.25pt}\\\\
\left( \cfrac{2n}{-3n\cdot -2n^2} \right)^4\implies \left( \cfrac{1}{3n^2} \right)^4\implies \stackrel{\textit{distributing the exponent}}{\cfrac{1^4}{3^4n^{2\cdot 4}}}\implies \cfrac{1}{81n^8}$

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3 years ago

Simplify the following expression as a monomial<br><br> X^2y÷yx^2

Novay_Z [31]

$\bf ~\hspace{7em}\textit{negative exponents}
\\\\
a^{-n} \implies \cfrac{1}{a^n}
~\hspace{4.5em}
a^n\implies \cfrac{1}{a^{-n}}
~\hspace{4.5em}
\cfrac{a^n}{a^m}\implies a^na^{-m}\implies a^{n-m}
\\\\[-0.35em]
\rule{34em}{0.25pt}\\\\
x^2\div yx^2\implies \cfrac{x^2}{yx^2}\implies \cfrac{x^2\cdot x^{-2}}{y}\implies \cfrac{x^{2-2}}{y}\implies \cfrac{x^0}{y}\implies \cfrac{1}{y}$

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3 years ago