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
Answer:
D?
Step-by-step explanation:
295 she spent
y dollars she can spend on other expanses
then 295+x+y=500
implies x+y=205
Answer:7
Step-by-step explanation: 10 +10 +x+x=34
20+2x= 34
-20 20
2x=14 x=7
Answer:
Step-by-step explanation:
B
