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prisoha [69]
4 years ago
7

The quantities

Mathematics
1 answer:
Finger [1]4 years ago
6 0

Answer:

  r = 0.1

Step-by-step explanation:

If (x, y) = (14, 1.4) and the quantities are proportional, the constant of proportionality (r) in ...

  y = rx

is ...

  r = y/x = 1.4/14 = 0.1

The constant of proportionality is 0.1.

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The formula to find the x coordinate is -b/2a. If you plug in the variables

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If the world's population increased exponentially from 5.937 billion in 1998 to 7.238 billion in 2014 and continued to increase
horrorfan [7]

Answer: The world's population in 2015 would have been 7.333 billion.

Step-by-step explanation:

  • Since the increase in population is an exponential one. It then follows a geometric progression defined by, T_{n} = ar^{n - 1}

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  •  Therefore, the population in <u>1998</u> is the <u>first term</u> <em>a</em> = 5.937 billion. The population in <u>2014</u> corresponds to the <u>17th term </u>(i.e., <em>n </em>= 17) = 7.238 billion.

Hence, T_{n} = ar^{n - 1}

7.238 billion = 5.937 billion × r^{17 - 1}

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= 1.219

<em>r</em> = \sqrt[16]{1.219}

<em>r</em> = 1.0125

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Step-by-step explanation:

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Micah and Joel each have a set of five rational numbers. Although their sets are not the same, their sets of numbers have absolu
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