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Westkost [7]
3 years ago
15

The gardener is going to cover the path with sand. If one bag of sand can cover 5yd^2, how many bags must be a whole number.

Mathematics
1 answer:
Nesterboy [21]3 years ago
5 0
5 a bag of bags be can cover2 garden
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Use a half-angle identity to find the exact value
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Using the trigonometric identity: \cos \left(30^{\circ}\right)=\frac{\sqrt{3}}{2}

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           $=\frac{\sqrt{2+\sqrt{3}}}{\sqrt{4}}

Using \sqrt{4} =2:

           $=\frac{\sqrt{2+\sqrt{3}}}{2}

$\cos 15^\circ=\frac{\sqrt{2+\sqrt{3}}}{2}

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