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4 years ago

Can I get help on 1-20 please

Mathematics

1 answer:

stepan [7]4 years ago

6 0

Answer:

no because it is a test do it by ur self

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You are buying 30 acres of farm land at $12,000 per acre. What is the total cost?

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Answer: 360,000 dollars becuz u have to multiply them together

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3 years ago

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The polynomial x3+8 is equal to

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The polynomial x3+8 is equal to (x+2)(x2-2x+4)

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Scientists have discovered a vaccine for a debilitating disease. This year there were 570,000 reported new cases of the disease

Ket [755]

Answer: There are approximately 853827 new cases in 6 years.

Step-by-step explanation:

Since we have given that

Initial population = 570000

Rate at which population decreases is given by

$\frac{2}{3}$

Now,

First year =570000

Second year is given by

$570000\times (\frac{1}{3})$

Third year is given by

$570000(\frac{1}{3})^2$

so, there is common ratio ,

it becomes geometric progression, as there is exponential decline.

so,

$570000,570000\times \frac{1}{3},570000\times( \frac{1}{3})^2,......,570000\times (\frac{1}{3})^6$

a=570000

common ratio is given by

$r=\frac{a_2}{a_1}=\frac{1}{3}$

number of terms = 6

Sum of terms will be given by

$S_n=\frac{a(1-r^n)}{(1-r)}$

We'll put this value in this formula,

$S_6=\frac{570000(1-(\frac{1}{3})^6}{(1-\frac{1}{3})}\\\\=853827.16$

So, there are approximately 853827 new cases in 6 years.

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3 years ago

Using the section of the graph shown, which of these potential roots of the function should you test first? f(x) = 2x3 – 9x2 – 6

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Answer: x = 5 /2 , 4 , -2

Step-by-step explanation:

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Timmy wants to buy a scooter and the price was $50. When

Lunna [17]

Answer:

$30

Srry if its wrong

Step-by-step explanation:

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3 years ago