4 years ago

Can someone help me with these???? I'm not fully understanding this unit.

1 answer:

5 0

For the first one you need to change the decimals into a fraction then after you do that you multiply the fractions then you get your answer

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3 years ago

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lara31 [8.8K]

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3 years ago

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Natasha2012 [34]

Answer: Second option is correct.

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$450=100e^{0.25h}\\\\\frac{450}{100}=e^{0.25h}\\\\4.5=e^{0.25h}\\\\\text{Taking natural log 'ln' on both sides}\\\\\ln (4.5)=0.25h\\\\1.50=0.25h\\\\h=\frac{1.50}{0.25}\\\\h\approx 6\ hours$