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3 years ago

» What is the product? 0.9 x 100 =

Mathematics

2 answers:

Zepler [3.9K]3 years ago

4 0

The product of this is 90

AURORKA [14]3 years ago

4 0

Answer:

0.9 × 100 = 90

Step-by-step explanation:

When you multiply a value by 10, you move the decimal one place to the right. When you multiply by 100, you move the decimal two places to the right. And so on. Therefore, 0.9 × 100 means taking 0.9 and moving the decimal two places to the right.

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Answer:

$11 \frac{25}{64}$

<h3>First answer is correct</h3>

Step-by-step explanation:

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The system of equations may have a unique solution, an infinite number of solutions, or no solution. Use matrices to find the ge

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Answer:

Infinite number of solutions.

Step-by-step explanation:

We are given system of equations

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Firs we find determinant of system of equations

Let a matrix A= $\left[\begin{array}{ccc}5&4&5\\1&1&2\\2&1&-1\end{array}\right]$ and B= $\left[\begin{array}{ccc}-1\\1\\-3\end{array}\right]$

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Apply $R_3\rightarrow R_3+R_2$

$\left[\begin{array}{ccc}1&0&1\\0&1&1\\0&0&-2\end{array}\right]$ : $\left[\begin{array}{ccc}-5\\6\\1\end{array}\right]$

Apply $R_3\rightarrow- \frac{1}{2}$ and $R_2\rightarrow R_2-R_3$

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Apply $R_1\rightarrow R_1-R_3$

$\left[\begin{array}{ccc}1&0&0\\0&1&0\\0&0&1\end{array}\right]$ : $\left[\begin{array}{ccc}-\frac{9}{2}\\\frac{13}{2}\\-\frac{1}{2}\end{array}\right]$

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Therefore, rank of matrix is equal to rank of B.

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