Answer:
50 kmph
Step-by-step explanation:
75/1.5 hours
75 multiply by 2/3 (a mile)
=50
Answer:
i know english only
Step-by-step explanation:
sorry but you stupit you not good at englis
Answer:
45% of the rock is mica
Step-by-step
10% + 45% = 55%. 100% - 55% = 45%
Answer:
42cm^2
3x2=6x7=42
Step-by-step explanation:
For question 11, you essentially need to find when h(t) = 0, since that is when the height of the ball reaches 0 (ie touches the ground).
For question 12, it is asking for a maximum height, so you need to find when dh/dt = 0 and taking the second derivative to prove that there is maximum at t. That will find you the time at which the ball will hit a maximum height.
Rinse and repeat question 12 for question 13
