Answer:
280
Step-by-step explanation:
what i did was just go step by step in what your teacher tells you to do but i am going to say this may be wrong.
Answer:
20 maybe
Step-by-step explanation:
Answer:
10) - 45 degrees
12) 0 degrees
Step-by-step explanation:
10)
Find the x and y components that define the vector that joins C with D:
x-component: -4 - (-8) = - 4 + 8 = 4
y-component: 4 - 8 = -4
use the tangent function to find the angle
:

12)
Find the x and y components that define the vector that joins A with B:
x-component: 7 - 4 = 3
y-component: - 1 - (-1) = -1 + 1 = 0
use the tangent function to find the angle
:

230
because 5x23 is 115 x 2 which is 230