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A stone is thrown into the air. Its height above the ground is given by the function$$h(t) = -5t^{2} + 30t + 2 \text{ metres,}$$where \( t \) is the time in seconds from when the stone is thrown.
How high is the stone above the ground after 3 seconds?
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From what height above the ground was the stone released?
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At what times is the stone 27 m above the ground? (order from lowest to highest)
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\(\log{\,}\)
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\(C\)
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C
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s,
\(\pi\)
\(e\)
\(x\)
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\(i\)
\(\frac{a}{b}\)
\(\sqrt{\,}\)
\({a}^{b}\)
\(\ln{\,}\)
\(\log{\,}\)
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\(C\)
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9
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\(\cos{\,}\)
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\(\div\)
\(\tan{\,}\)
C
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s
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