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3 years ago

F(x) = −2x3 − x2 + 3x + 1?

Mathematics

2 answers:

MrRa [10]3 years ago

6 0

-5x+1 is the answer i think. You could have wrote the problem a little better tho. Yep that should be it tho

aalyn [17]3 years ago

4 0

Your answer is in the graph below. I hope this helps
Answer: -5x+1

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Given the data shown below, which of the following is the best prediction for

Soloha48 [4]

Answer:

The best prediction for the number of years it will take for the population to reach 200,000 is 9.41

Step-by-step explanation:

Year Population

1 11,920

2 16,800

3 23,300

4 33,000

5 45,750

6 64,000

$y_1 =A _0 e ^{kt _1}\\y_2 = A_0 e^{k t_2}\\(t_1,y_1)=(1,11920)\\(t_2,y_2)=(2,16800)$

Substitute the values

$11920=A _0 e ^{k} ---1\\16800 = A_0 e^{2k} ---2$

Divide 1 and 2

$\frac{11920}{16800}=\frac{e^k}{e^{2k}}\\\frac{11920}{16800}=e^{k-2k}\\ln(\frac{11920}{16800})=-k\\k=-1 ln(\frac{11920}{16800})\\k=0.3432\\A_0=y_1 e^{-k t_1}\\A_0=11920 e^{-0.3432}\\A_0=8457.5238$

The exponential function that passes through the points (1, 11920) and (2, 16800) is $y=8457.5238 e^{0.3432t}$

Now we are supposed to find the best prediction for the number of years it will take for the population to reach 200,000

$200000=8457.5238 e^{0.3432t}$

$\frac{200000}{8457.5238}=e^{0.3432t}$

$ln(\frac{200000}{8457.5238})=0.3432t$

t = 9.41

Hence the best prediction for the number of years it will take for the population to reach 200,000 is 9.41

6 0

4 years ago

60 is what percent of 1200

k0ka [10]

Answer:

60 is 5$ of 1200

Step-by-step explanation:

Find the value of the ratio 60/1200 and then multiply the result by 100%:

(1/20)(100%) = 5%

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Neporo4naja [7]

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Mrac [35]

Answer:

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