No, the two rectangles are not similar. Similar rectangles will have the same ratio of shortest to longest side lengths.
3 : 4 ≠ 5 : 6
Answer: 10 m/s
Step-by-step explanation:
Given
Momentum of boy 
Mass of boy is 
Momentum is the product of mass and velocity

Substitute value

Thus, the boy is moving with a velocity of 10 m/s
Answer:
9x^2-9
Step-by-step explanation:
A because it’s just pluss what makes it easier