1. Vector B is 5 units down, Vector C is 10 units down and Vector D is 5 units up. What is the measure of Vector B + Vector C + Vector D? Be sure to show and explain your work. O 5 units up O 10 units up O 5 units down 10 units down 2. Vector C is 10 units down and Vector D is 5 units down. What is the measure of Vector C + Vector D? Be sure to show and explain your work. O 15 units up O 5 units down 15 units down O 5 units up3. Vector C is 4 units down and Vector D is 5 units up. What is the measure of Vector C - Vector D? Be sure to show and explain your work. B U Font Family AA A Q Q 4. Which of the following are expressed as scalars? O direction O speed O velocity O weight