A ball is thrown vertically into the air. Its height in feet after t seconds is given by the function: h(t) = â5t^2 + 20t. How high will the ball be after 3 seconds?
15 feet
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banana
Go to last place!
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shark
Other team loses 10 points!
Okay!
gift
Win 20 points!
Okay!
baam
Lose 20 points!
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5
If the graph shows price vs profit, what is the maximum profit?
12500
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15
Ed is playing a round of golf when he takes a shot off of a tee. The height of the ball is modeled by the function: h(t) = -16t^2 + 112t. The time it will take before hitting the ground?
7 seconds
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15
Joe Mauer hits a fly ball. You can track the height of the ball using the function: h(t) = -16t^2 + 140t + 2. What was the starting height of the ball?
2 feet
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15
You went to a haunted house on Halloween. The mummy scared you so much that you jumped into the air! The equation h = -4t^2 + 2t models her jump, in feet and t second after the mummy scares her. When did she reach her maximum height?
0.25 seconds
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10
If path of a projectile is modeled by: h(t) = -16t^2 + 20t +6. What is the height after 1 second?
10 feet
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15
The profit from selling local ballet tickets depends on the ticket price. Using past receipts, we find that the profit can be modeled by the function: p= -15x^2 +600x +60. What is the maximum profit you can make from selling tickets?
$6060
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15
A raft is dropped from a helicopter 256 feet in the air above the ocean. Its approximate height, h, after t seconds is given by the function h(t) = -16t^2 + 256. How many seconds did it take the raft to hit the water?