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Mariulka [41]
3 years ago
11

Round to the nearest gram

Mathematics
1 answer:
earnstyle [38]3 years ago
5 0

Alright, so after a half-life, half of the previous number would be left. So basically,

180 g ← 0 half lives

90 g ← 1 half life

45 g ← 2 half lives

22.5 g ← 3 half lives

11.25 g ← 4 half lives


Therefore, the answer is 11.25 grams

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Answer:

x_1=\frac{5+\sqrt{33}}{4}≈2.69

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1. You have that the quadratic formula is:

x=\frac{-b+/-\sqrt{b^{2}-4ac}}{2a}

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