4 years ago

Can someone please help ! thank you !

Mathematics

1 answer:

Bess [88]4 years ago

5 0

Linear- y= 5/4x + 4
quadratic- y= -(1/2 + 0)^2 +5

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To 1 significant digit, how much Coumarin (in grams) would a 70 kg (154lb) student have to ingest to reach the LD50?

timofeeve [1]

Answer:

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Step-by-step explanation:

The lethal dose 50 (LD50) of Coumarin is 293 mg/kg body mass. The amount of Coumarin that a 70 kg student would have to ingest to reach the LD50 is:

70 kg body mass × (293 mg/kg body mass) = 20510 mg

1 gram is equal to 1000 milligrams. The mass (in grams) corresponding to 20510 milligrams is:

20510 mg × (1 g/ 1000 mg) = 20.51 g ≈ 2 × 10 g

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