Asked by Julie

a rolloercoater begins at 90 feet abouve ground level.then it desends 105 feet, find the height of the coaster after the first descent
Answered by drwls
Subtract 105 from 90 and you get -15. It would end up underground.
Answered by Julie
oh okay that's what i thought just making sure
Answered by drwls
Some roller coasters end up in a pond of water, which might be below ground level
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