Answer: 
Step-by-step explanation:
Answer:
2.88m/s
Step-by-step explanation:
By using the law of conservation of momentum
Initial momentum = final momentum
v = is their combined velocity afterwards
Solving equation (1) for v
V = 2.88 m/s
Therefore the velocity afterward is 2.88 m/s.
Answer:
102.4
Step-by-step explanation:
Open the bracket
19-6.2=12.8
8(12.8)
8*12.8=102.4
Answer:
-12
Step-by-step explanation:
10-22=-12
enteric shop is 92.28 before
Answer:
X=4
Step-by-step explanation:
-2-10x+100=7x+30
-10x+98=7x+30
-17x+98=30
-17x=-68
17x=68
x=4