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December 18, 2014

December 18, 2014

Posted by **Mirayah Robinson** on Friday, August 19, 2005 at 8:02pm.

The correct answer is C. Just perform the calculations indicated and you get

1.2 x [1 + (2.3*10^-5 * 50)]

= 1.2 x (1.00115)

= 1.20138

Ignore the 7th significant figure in 1.201386; It is not meaningful.

i don't understand math

can someone help me like joseph in my math class

One additional remark. I have noticed that the answers you have been given on a number of questions are wrong...wrong in the sense of precision. It is not possible to get five or six or seven significant figures from a question that the data is only two or three significant figures. In this problem, 1.2 meters is precise to two significant figures, but the answers are given as "choices" are all greater than that. Point this out to your teacher, it is nonsense to try to get more precision than is given.

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