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Andreas93 [3]
3 years ago
5

Paul predicts that n stalks of corn planted together will produce (2n2–2n)(2n2–2n) ears of corn. If Paul plants three corn plant

s, how many ears of corn does Paul expect to harvest? 24 ears 30 ears 12 ears 6 ears
Mathematics
1 answer:
Free_Kalibri [48]3 years ago
6 0
Given that the production of n stalks of corn planted has been modeled by (2n^2-2n), then the approximate ears of corn produced by 3 stalks will be given by:
2n^2-2n
plugging in n=3 in the formula we get:
2(3)^2-2(3)
simplifying we get:
2(9)-6
=18-6
=12
the answer is: 12 ears
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3 years ago
the half-life of chromium-51 is 38 days. If the sample contained 510 grams. How much would remain after 1 year?​
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For t, since one half-life occurs every 38 days, we can substitute t/38 for t, where t is the time in days.

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\displaystyle f(t)=510\Big(\frac{1}{2}\Big)^{t/38}

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Therefore, the amount remaining after one year will be:

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f(365)=510e^{365\ln(.5)/38}\approx 0.6548

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