과목 둘러보기B.E.S.T. Algebra 1 — EOC
B.E.S.T. Algebra 1 · EOC Florida standards 1A-1G
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A ball is thrown upward. Its height is h = −16t² + 48t. When does it hit the ground?

A1 sec
B2 sec
C3 sec
D4 sec

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