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velikii [3]
3 years ago
14

Help me and I'll label the first person the brainest

Mathematics
1 answer:
Zina [86]3 years ago
5 0

irrational since Pi as infinity numbers

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Total world consumption of iron was approximately 900 million tons in 1993. If consumption had increased by 2.5% each year and t
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Step-by-step explanation:

We can model the annual consumption of iron by the equation

c = 900 million tons x 1.025^n, where

n is the number of years after 1993 and

c is the consumption for that year.

An estimate for the total consumption of iron can now be obtained by integrating this equation with respect to a dummy variable, x from 0 to n.

C = 900*10^6* \int\limits^n_0 {1.025^x} \, dx

This equation simplifies to

C = 900 million tons x (1.025^n - 1) / ln(1.025), where

x is a dummy variable and

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Let R be the amount of iron remaining at n years after 1993, so

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R = 480 billion tons - 900 million tons x (1.025^n - 1) / ln(1.025)

We need to find the value of n when R is 0, so

0 = 480 billion tons - 900 million tons x (1.025^n - 1) / ln(1.025)

Simplify this equation to obtain

n = 107.4

So the iron will run out in the year 1993 + 107 = 2100

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2 years ago
What is the slope-intercept from equation of the line that passes through (5,7)and(8,22)?
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Answer:

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Step-by-step explanation:

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