Which matrix represents b-a

a= 3 -12 b= 4 5

-6 5 -1 8

9 -2 -7 6

a) -1 -17

-5 -3

16 -8

b) 1 -7

-7 3

2 4

c) 1 7

5 3

-16 8

d) -1 -17

7 -3

2 -8

Sunday: 1 1 2 monday: 1 tuesday: 2 1 2 wednesday: 1 3 4 thursday: 2 friday: 1 1 2 saturday: 2 jenna is a swimmer and trains every day. the schedule shown outlines the number of hours she trains each day. what is the total number of hours that jenna trains during the week?

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.