Answer:
the marked answer is correct
Step-by-step explanation:
The desired end result is an identity matrix in the first three columns. The diagonal values are 1, as needed, so what remains is to eliminate the off-diagonal values. In row 2 that can be done by adding row 3 to it.
The next step should be to add rows 2 and 3 and replace row 2 with that sum.
To represent the length of the string, we can use the variable
y.
Y is four times longer than X.
Hope this helps!
Answer:
all work is shown and pictured
Answer:
No
Step-by-step explanation:
Integers are whole numbers 1, 2, 3, 4, so on and so on
3x - 5 =
divide 3 on both sides
you cancel out the 3 and when you divide the 5 by 3 you get 1.7
therefore x = 1.7
