MAthz of f.2 quick plz help easy LA`

用戶52535

2007-11-23 8:37 pm

1)Express 55/12 as a decimal number correct to
a) 3d.p.
b) 3sig.fig
2)The weight of 196 apples is 30.32kg.Find the weight of an apple by roundind off the given figures to 1 sig.fig. first.
3)Mr wong uses a 149m long wire to fence a square field.Find
a)The length of the side of the field in m
b)The area of the field im m^2
Correct your answers to 2 decimal places.

回答 (1)

STEVIE-G™

2007-11-23 9:19 pm

✔ 最佳答案

1)Express 55/12 as a decimal number correct to
a) 3d.p.
=4.583
b) 3sig.fig
=4.58
2)The weight of 196 apples is 30.32kg.Find the weight of an apple by roundind off the given figures to 1 sig.fig. first.
the weight of an apple
=196/30.32
=6kg(correct to 1 sig.fig. )
3)Mr wong uses a 149m long wire to fence a square field.Find
a)The length of the side of the field in m
=149/4
=37.25m
b)The area of the field in m^2
=(37.25)^2
=1387.56m^2(correct to 2 decimal places.)
Correct your answers to 2 decimal places.

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