Please I need help with questions 2 and 3 and it’s very hard and I’m struggling with it and if you need to see the picture big then click on it and it will be big

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asked Sep 28, 2019 179k views

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Sternze · Answer 1 · 2019-10-01T20:06:11+0000

2-first we change the scientific notations into fraction then do the calculation. at the end, you can change them to scientific notations

$8.42 * {10}^(4) - 12 * {10}^(2) \\ = 8420 - 0.012 = 8419.998$
hope this helps

Please I need help with questions 2 and 3 and it’s very hard and I’m struggling with it and if you need to see the picture big then click on it and it will be big

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