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$Consider this matrix: [[-5,7],[-1,2]] Find the inverse of the matrix. Give exact values. Non-integers can be given as decimals or as simplified fractions. ◻ ◻ ◻ ◻$

Consider this matrix: $\newline$ $\left[\begin{array}{cc} -5 & 7 \\ -1 & 2 \end{array}\right]$ $\newline$ Find the inverse of the matrix. $\newline$ Give exact values. Non-integers can be given as decimals or as simplified fractions. $\newline$ $\square$ $\newline$ $\square$ $\newline$ $\square$ $\newline$ $\square$

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Divide whole numbers - 3-digit divisors

Full solution

Q. Consider this matrix:

\newline

\left[\begin{array}{cc} -5 & 7 \\ -1 & 2 \end{array}\right]

\newline

Find the inverse of the matrix.

\newline

Give exact values. Non-integers can be given as decimals or as simplified fractions.

\newline

\square

\newline

\square

\newline

\square

\newline

\square

Identify total tape needed: Step $1$ : Identify the total amount of tape needed and the amount per roll. $\newline$ Total tape needed = $8,000 \, \text{cm}$ , Tape per roll = $2,000 \, \text{cm}$ . $\newline$ Calculate the number of rolls by dividing the total tape needed by the tape per roll. $\newline$ $8,000 \div 2,000 = 4$ .

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