Answer:
Yes, he is correct
Step-by-step explanation:
25% of 20 is 5 (0.25*20)
100% of 20 is 20
if you take 125% of 20, you'll end up with 25
This is the graph hope this helps.
Answer:
a = 
Step-by-step explanation:
Given
ai + bj and 5i - 2j are perpendicular and b = 3, that is
ai + 3j and 5i - 2j are perpendicular, then
The scalar product = 0 , that is
5a - 6 = 0 ( add 6 to both sides )
5a = 6 ( divide both sides by 5 )
a = 
Answer:
Step-by-step explanation: