Solve this quadratic word problem
1 answer:
A First, solve the equation
Solving will give:
5 and 1, the largest number is 5, so after 5 seconds it reaches 80 feet for the second time.
B Solve the equation
Solving gives:
t = 0 and t = 6, since it cannot hit the ground within 0 seconds, your awnser is: after 6 seconds it will hit the ground.
C Find the maximum.
Use
to find the time in seconds.
This gives: t = 3
Filling in t = 3 gives: 144 feet.
The max. height is 144 ft.
Solving will give:
5 and 1, the largest number is 5, so after 5 seconds it reaches 80 feet for the second time.
B Solve the equation
Solving gives:
t = 0 and t = 6, since it cannot hit the ground within 0 seconds, your awnser is: after 6 seconds it will hit the ground.
C Find the maximum.
Use
This gives: t = 3
Filling in t = 3 gives: 144 feet.
The max. height is 144 ft.
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Answer:
D.) 89.33°
Step-by-step explanation:
Use the inverse:
Insert this value into a calculator:
Round to the nearest hundredth:
The missing value is 89.33°.