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3 years ago

Not 6 not 5 not 8.46

Mathematics

2 answers:

Sonja [21]3 years ago

7 0

Answer:

The answer is the square root of 72 or it could be 8.49.

kozerog [31]3 years ago

4 0

Answer:

The answer is square root 72 or if you don't want to put it under the square root, just simplify and you get 8.49. Just use the distance formula.

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Answer:

Step-by-step explanation:

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3 years ago

In 2018, the population will grow over 700,000.The population of a city in 2010 was 450,000 and was growing at a rate of 5% per

Firlakuza [10]

Answer:

The year is 2020.

Step-by-step explanation:

Let the number of years passed since 2010 to reach population more than 7000000 be 'x'.

Given:

Initial population is, $P_0=450,000$

Growth rate is, $r=5\%=0.05$

Final population is, $P=700,000$

A population growth is an exponential growth and is modeled by the following function:

$P=P_0(1+r)^x$

Taking log on both sides, we get:

$\log(P)=\log(P_0(1+r)^x)\\\log P=\log P_0+x\log (1+r)\\x\log (1+r)=\log P-\log P_0\\x\log(1+r)=\log(\frac{P}{P_0})\\x=\frac{\log(\frac{P}{P_0})}{\log(1+r)}$

Plug in all the given values and solve for 'x'.

$x=\frac{\log(\frac{700,000}{450,000})}{\log(1+0.05)}\\x=\frac{0.192}{0.021}=9.13\approx 10$

So, for $x > 9.13$ , the population is over 700,000. Therefore, from the tenth year after 2010, the population will be over 700,000.

Therefore, the tenth year after 2010 is 2020.

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2 years ago

If each interior angle of a regular polygon measures 120 , how many sides does the polygon have?

KatRina [158]

Answer:

the ans is 6 sides i guess

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2 years ago

Read 2 more answers

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Step2247 [10]

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3 years ago

Any help please if possible Thank you ❤❤❤

creativ13 [48]

155 - 2⁷ = 27 =3³
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3 years ago