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Natali5045456 [20]
3 years ago
7

Cos 0.43 =cos (-0.43)

Mathematics
1 answer:
katrin [286]3 years ago
4 0
This is true because cos(x) is an odd function meaning that if you plug in a negative value, you will still get the same answer if you plugged in the absolute value of that number.
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General equation of exponential decay/growth:

N = Noe^(kt)

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Therefore, our equation is now:

N = 100e^((ln(.5)/710)t)

Now, we substitute t with 600:

N = 100e^(ln(.5)/710)600

N = 100e^(-.585758)

N = 100(.556684)

N = 55.668 grams

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