The height of a ball thrown directly up with a velocity of 10 feet per second from a initial height of of 100 feet is given by t
he equation , where t is the time in seconds and h is the ball’s height, measured in feet. When will the ball hit the ground? Round your answer to the nearest tenth.
1 answer:
Answer:
2.8 seconds
Step-by-step explanation:
Given that a ball is thrown directly up
Initial velocity u = 10 ft/sec INitial height = 100 ft
t = time from time of throw
The equation as
Since h(0) =100 we find that h is measured from earth
When the ball hits the ground h=0
So we have
Use binomial formulae to solve this to get
t=2.832 or t =-2.207
Since time cannot be negative
we get t=2.832
At 2.8 seconds ball hits the ground
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The second way is to FOIL them out. When you check B you get
combine your like terms and you have your original expression of 
Hope that helps
The second way is to FOIL them out. When you check B you get
Hope that helps
Answer:
0.06% annually
Step-by-step explanation:
Divide $720 by 3. We get $240, so we know this is the amount of interest we get per year. Dividing $240 by $4,000 gives us