How do I find 5a-4b????

asked Sep 19, 2022 12.8k views

21 votes

7.2k points

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5 votes

Answer:

(e).

Explanation:

5A =
$\left[\begin{array}{ccc}5(-9)&5(-7)&5(7)\\5(5)&5(-1)&5(7)\end{array}\right]$

4B =
$\left[\begin{array}{ccc}-28&28&24\\-4&28&24\end{array}\right]$

5A - 4B =
$\left[\begin{array}{ccc}-17&-63&11\\29&-33&11\end{array}\right]$

Karg answered Sep 22, 2022

by Karg

7.9k points

9 votes

Explanation:

e is the required answer.hope this helps

TedBurrows answered Sep 23, 2022

7.4k points

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