Answer:
True
Step-by-step explanation:
I remembered learning this definition for a matrix:
A Matrix is an arrangement of numbers into rows and columns
so yes matrices consist of rows and columns
Answer:
x= -9
Step-by-step explanation:
.19 seconds
This is because 12.38-12.19= .19
Answer:

Step-by-step explanation:
replace x with -1
solve exponents
-1² = -1 × -1 = 1
subtract
