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solve (38x10 to the negative fourth power) +(4.000x10 to the negative second power
38*10^(-4)=0.0038 This means you move the decimal to the left (divided by 10) four times. 4.0*10^(-2)=0.04 This means you move the decimal to the left two times. Now add the two. 0.0038+0.04 Always line up decimals when adding them! The final answer is 0.0438
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