Answer:
First vector

Second vector

Step-by-step explanation:
Given that
Vector a , a= 4 i + 5 j + 0 k
Vector b , b= 0 i + 1 j - 3 k
The orthogonal vector V is given as
V = a x b
V is the cross product of the above two vector which is orthogonal to the vectors a and b.

The unit vectors

First vector

Second vector

Aaron is 11 and Laura is 12. Hope this helped.
The best method here is to plug in so plug in -1 (-1)+5+3(-1)=1 so the answer is A
Answer:
145°
Step-by-step explanation:
< 6 + <2 = 180° {being linear pair }
70° + < 2 = 180°
< 2 = 180° - 70°
< 2 = 110°
Now
< 4 = < 1 + < 2 (exterior angle of a triangle is equal to the sum of two opposite interior angles)
<4 = 35° + 110°
= 145°
Hope it will help :)
Answer:
784
Step-by-step explanation:
Use long multiplication to evaluate.