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Maths Questions!! Help! TEN POINTS!!!

Here are three estimated values of &quot;pie&quot;:

3.14 3.1416 22/7

a) Arrange the estimates in order of accuracy.

b) For each given estimated value of &quot;pie&quot;, 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

• 1 十年前
最愛解答

a) Arrange the estimates in order of accuracy:

3.1416 =&gt; error is about 2.3*10^(-6)

22/7 =&gt; 0.04%

3.14 =&gt; 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