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23 September, 16:08

Viola drives 2 kilometers up a hill that makes an angle of 9 with the horizontal. To the nearest tenth of a kilometer, what horizontal distance jade she covered?

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  1. 23 September, 17:42
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    cosine (CAH) = Adjacent / hypothenus

    cos9 = x / 2

    let x represent the horizontal distance

    2 cos 9 = x

    x = 2 (0.98768834)

    x = 1.975

    x = 1.97

    therefore the horizontal dstance jade covers is 1.97km
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