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3 years ago

Is 63 a prime or composite number

2 answers:

8 0

$63|3 \\ 21|3 \\ 7 \ |7 \\ 1 \\\\ 63=3^2*7 \\\\ 63-composite \ number \ because \ it \ can \ be \ divided \ by \ D_{63=\{1;3;7;9;21;63 \}$

notsponge [240]3 years ago

3 0

The answer is composite because a prime number is only divisible by 1 and itself. You can divide sixty-three by 9, 7,21,3,63, and 1.

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2 x 6 ÷ 2 + 1 Best Friends Answer (:

KatRina [158]

Answer:

Step-by-step explanation:

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4 years ago

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kirza4 [7]

Answer:

The products of AB and BA is given by

AB= $\left[\begin{array}{cc}21&-6\\ 9&3\end{array}\right]$

BA= $\left[\begin{array}{cc}9&-1\\-18&15\end{array}\right]$

Step-by-step explanation:

Given the matrices A= $\left[\begin{array}{cc}6&-5\\-3&-4\end{array}\right]$ and

B= $\left[\begin{array}{cc}1&-1\\-3&0\end{array}\right]$

To find the product AB and BA

AB= $\left[\begin{array}{cc}6&-5\\-3&-4\end{array}\right] \left[\begin{array}{cc}1 & -1\\-3 &0\end{array}\right]$

$=\left[\begin{array}{cc}6+15& -6+0\\-3+12&3-0\end{array}\right]$

Therefore the product of AB is

AB= $\left[\begin{array}{cc}21&-6\\ 9&3\end{array}\right]$

BA= $\left[\begin{array}{cc}1&-1\\-3&0\end{array}\right]$ $\left[\begin{array}{cc}6&-5\\-3&-4\end{array}\right]$

$=\left[\begin{array}{cc}6+3& -5+4\\-18+0&15+0\end{array}\right]$

Therefore the product of BA is

BA= $\left[\begin{array}{cc}9&-1\\-18&15\end{array}\right]$

The products of AB and BA is given by

AB= $\left[\begin{array}{cc}21&-6\\ 9&3\end{array}\right]$

BA= $\left[\begin{array}{cc}9&-1\\-18&15\end{array}\right]$

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Let the number be x.
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vampirchik [111]

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