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  • 1.What is the measure of one exterior angle of a regular polygon having 40 sides?

    1.What is the measure of one exterior angle of a regular polygon having 40 sides?
    2.To the nearest thousandth,what is tan (77o)
    3.When the angle of elevation to the sun is 26o,a flagpole casts a shadow that is 82 feet long.What is the height of the flagpole to the nearest foot?
    9
    4.What is the value of ∑ 2k – 3
    k = 4
    5.1.Find the sum of the infinite geometric series:3 + 1.8 + 1.08 + 0.648 + …
    數(shù)學(xué)人氣:467 ℃時(shí)間:2020-01-31 11:51:19
    優(yōu)質(zhì)解答
    1.9°(正四十邊型的外角度數(shù))
    2.4.331 (tan77°的精確到千分位的數(shù)字)
    3.tan26*82=40.0 feet(仰角26°,旗桿投影82英尺)
    4.from 4 to (求和)
    5+7+9+11+13+15=60
    5.7.5 (等比數(shù)列無(wú)窮項(xiàng)和)
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