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:
at least 108
Step-by-step explanation:
Because 350÷3.25=107.692308 and it is rounded to 108 so our answef is at least 108.
Answer:
30p+25r+20c
Step-by-step explanation:
to find the amount ty earns for each job multply his hourly rate by the number of hurs he works doing each job. the find the total
Answer:
In mathematics, the slope or gradient of a line is a number that describes both the direction and the steepness of the line. ... Slope is calculated by finding the ratio of the "vertical change" to the "horizontal change" between (any) two distinct points on a line.
Step-by-step explanation:
Since the options are not clear enough, please kindly see the attached file for more explanation
