A=1x3 means 1 row and 3 columns.
B=3x4 means 3 rows and 4 columns.
AB is a compatible multiplication because A has three columns and B has 3 rows.
However, BA is not a compatible multiplication because B has 4 columns while A has only 1 row.
The general trick is if you read the row/column of the two matrices as 1-3-3-4, and the two middle ones are identical, then AB would be a compatible multiplication. On the other hand, BA would read 3-4-1-3, since 4 and 1 are not identical, so it is not a valid multiplication.
Do remember 1x3 means 1 ROW and 3 COLUMNS.
Answer:
n is 7
Step-by-step explanation:
No circumference of a circle is very easy to me
-4x-x-2-9=-1
or,-5x=10
or,x=-2
The point on the number line that best shows the position of square root 26 is point A.
<h3>Where is the square root 26 located on the number line?</h3>
The first thing to do is to solve for the square root of 26 which is:
= √26
Solving gives:
= 5.099
The best position on the number line would therefore be at a point that is as close to 5 as possible but to the right of it.
That point on the number line is Point A.
Find out more on the number line at brainly.com/question/27855198.
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