SOLUTION: What is the determinant? |5 7| |3 8| This is altogether but I couldn't make a straight line that was long enough

Algebra ->  Matrices-and-determiminant -> SOLUTION: What is the determinant? |5 7| |3 8| This is altogether but I couldn't make a straight line that was long enough      Log On


   

Question 613276: What is the determinant?
|5 7|
|3 8|
This is altogether but I couldn't make a straight line that was long enough
Found 3 solutions by Alan3354, brittanylynn, smaraya:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
What is the determinant?
|5 7|
|3 8|
----------
Det = 5*8 - 3*7
= 19

Answer by brittanylynn(1) About Me  (Show Source):
You can put this solution on YOUR website!
5*8 - 3*7
40 - 21
Determinant = 19

Answer by smaraya(8) About Me  (Show Source):
You can put this solution on YOUR website!
the Ans is 19
(5)(8)-(7)(3)=19