Answer:
90.5
Step-by-step explanation:
Velocity is a time-derivative of displacement or the height, in this case.


At maximum height, the velocity is 0 and the height is 128.
Substitute these values into both equations above,


From the first equation,

Substitute for
.





Answer:
The probability of drawing three red marbles is 1/27, or about 3.71%
Step-by-step explanation:
Add all the marbles:
5 + 4 + 6 = 15
Find favourable outcomes:
5
The probability for drawing a red marble is:
5/15 or 1/3
Multiply this ×3 to find the probability of drawing three red marbles.
1/3 × 1/3 × 1/3 = 1/27
1 ÷ 27 = 0.0370370370 ... repeating
Dont say you can't! I believe in youu!
Answer:
12
Step-by-step explanation:
If he shares it equally with his brother, that is 12÷2=6
Then he receives 2, so 2+6=8