Answer: 0; Yes
Step-by-step explanation:
-8 x 4.5 = -36
2 x 18 = 36
-36 + 36 = 0
since the product is zero, the vectors are perpendicular
Answer:
30
Step-by-step explanation:
Answer:6
Step-by-step explanation:
-7=s+(-13)
Open bracket
-7=s-13
Collect like terms
s=-7+13
s=6
The sum of angles is equal to 180 so they are called supplementary angles