28 + vector b = -12
vector b = -40
vector b has magnitude 40 units in the negative y direction.
I think it is A because i think it is the only one that makes sense
A,10 cm if you like this answer explained to you let me know
Answer:
I don't know that options but......
if we are rounding to the thousands, then the answer would be 3,000
if hundreds, the answer is 3,400
if tens: 3,390
If ones: 3,390
Step-by-step explanation:
round each number up or down based upon what the digit is.