81 is the correct answer
hope it helps you have a good day
For any scalar , is a vector pointing in the same direction as .
To force this vector to have the same length as another vector , first normalize by dividing it by its norm,
then multiply this vector by the norm of , so that
To confirm that has the same length as :
Answer:
yes it does, -6x2= -18
Step-by-step explanation: