In Exercises, compute each matrix sum or product if it is defined. If an expression is undefined, explain why. B=11-4-3 Let A + 2B, 3C- E, CB, EB In the rest of this exercise set and in those to follow, you should assume that each matrix. expression is defined. That is, the sizes of the matrices (and vectors) involved "match" appropriately

-1/2 +2

step-by-step explanation:

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

step-by-step explanation:

a

step-by-step explanation:

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.