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October 1, 2014

October 1, 2014

Posted by **Melanie** on Monday, March 28, 2011 at 5:14pm.

A. 40.1 x 10 to the -6 power

B. 4.1 x 10 to the -7 power

C. 0.411 x 10 to the -6 power

D. 0.04001 x 10 to the -5 power

I got A, but I'm not quite sure if it's the right answer :/

- Math -
**Reiny**, Monday, March 28, 2011 at 5:37pmA --- 40.1 x 10^-6 = 4.01 x 10^-5

B ---------------- 4.1 x 10^-7

C ------ .411 x 10^-6 = 4.11 x 10^-7

D .04001 x 10^-5 = 4.001 x 10^-7

The largest number is the one with the largest exponent

since -5 > either -6 or -7

your choice of A is correct

- Math -
**Melanie**, Monday, March 28, 2011 at 6:22pmYeah that's what I thought. But I wasn't sure which was greater, the larger exponent or the smaller one. It's kinda confusing when your dealing with decimals and negative exponents. But thankss :)

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