Maths Questions!! Help! TEN POINTS!!!

Here are three estimated values of "pie":

3.14 3.1416 22/7

a) Arrange the estimates in order of accuracy.

b) For each given estimated value of "pie", under what condition will it be used?

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In the each of following, find 3 pairs of compatible numbers:

435 625 565 275 600 725 190 310 700 850 400 250

2 個解答

評分
  • 1 十年前
    最愛解答

    a) Arrange the estimates in order of accuracy:

    3.1416 => error is about 2.3*10^(-6)

    22/7 => 0.04%

    3.14 => 0.05%

    b) 22/7 is usually for primary or junior secondary schools.

    22/7 or 3.14 is usually for engineering work where accuracy above 99.9% is already practicable.

    3.1416 is for higher precision calculations.

  • 1 十年前

    a, most acc:22/7 most inaccur:3.14

    資料來源: me
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