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aliina [53]
1 year ago
8

6. What is the cube of 8? A. 64 B. 2 C. 512 D. 24

Mathematics
1 answer:
Luba_88 [7]1 year ago
7 0

Answer : C. 512

step-by-step explanation :

  • 8
  • 8(square) = 8² = 8 × 8= 64
  • 8(cube) = 8³ = 8 × 8 × 8 = 64 × 8

  • 512
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The product of a rational and irrational number is rational
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Answer:

False

Step-by-step explanation:

I think this is a true or false question.

The statement is false.

Here is an example of it being false:

Choose the irrational number to be \sqrt{2} and the rational to be 1.

The product of these numbers is \sqrt{2} which is irrational, not rational.

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Answer: anwser is D if thats incorrect then its A

Step-by-step explanation:

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Which equation results from adding the equations in this system?<br><br> -8x+8y=8<br><br> 3x-8y=-18
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Just Add the equations 
[ Remember, Like terms together ]

(-8x+3x) + (8y-8y) = (8-18)
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In short, Your Resulted Equation would be: -5x = -10
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4/10x - 2x + 8/5 = 4/5
mamaluj [8]

\large\displaystyle\text{$\begin{gathered}\sf \left(\frac{4}{10}\times x\right)-(2 \times x)+\frac{8}{5}=\frac{4}{5}    \end{gathered}$}

Reduce the fraction 4/10, to its minimum expression, extracting and canceling 2.

  • \large\displaystyle\text{$\begin{gathered}\sf \frac{2}{5}x-2x+\frac{8}{5}=\frac{4}{5}    \end{gathered}$}

Combine \bf{\frac{2}{5}x } and -2x to get \bf{-\frac{8}{5}x}.

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Subtract 8/5 from both sides.

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Since 4/5 and 5/8 have the same denominator, join their numerators to subtract them.

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Subtract 8 from 4 to get -4.

  • \large\displaystyle\text{$\begin{gathered}\sf -\frac{8}{5}x=-\frac{4}{5}   \end{gathered}$}

Multiply both sides by \bf{-\frac{5}{8}}, the reciprocal of \bf{-\frac{5}{8}}.

  • \large\displaystyle\text{$\begin{gathered}\sf x=-\frac{4}{5}\left(-\frac{5}{8}\right)   \end{gathered}$}

Multiply -4/5 by -5/8 (to do this, multiply the numerator by the numerator and the denominator by the denominator).

  • \large\displaystyle\text{$\begin{gathered}\sf x=\frac{-4(-5)}{5\times8} \ \to \ \ Multiply  \end{gathered}$}
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Reduce the fraction 20/40 to its lowest expression by extracting and canceling 20.

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  • <u>Good luck in your studies</u>
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