Maths question

2010-03-27 5:50 am
Find the values of the following expressions, and state whether the answer are rational number

1. 0.6 + 0.3


2. 3 1/4 - 1.3

mean recurring

回答 (1)

2010-03-27 6:43 am
✔ 最佳答案
1. 0.6 + 0.3
= 2/3 + 1/3
= 1( rational number)

rational numbers are numbers that can be expressed inthe form p/q , wherep and q are integers and q is not equal to 0.

2. 3 1/4 - 1.3
= 3 又1/4 - 1又 1/3
= 23/12( rational number)

2010-03-26 22:45:49 補充:
3. √0.0036
= (36/10000)^(1/2)
=[( 6/100)^2])^(1/2)
= 6/100
or 0.06


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