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4 years ago

-3 is greater than w , and -8 is less than w

Mathematics

1 answer:

saveliy_v [14]4 years ago

7 0

Answer:

-8<w<-3

Step-by-step explanation:

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What is the range of f(x) = -x^2 + 4, if the domain is {2,0,1}?

gregori [183]

[8,4.5] i think that is right

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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.

8 0

3 years ago

Mr. Phan fills a portion of his pool with water on Monday. Then on Tuesday, he fills the pool with water coming from a hose at a

Zanzabum

Answer:

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Step-by-step explanation:

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3 years ago

A bed is on sale for 25% off of its original price. It originally cost $879.00. How much is the sale price of the bed?

Arturiano [62]

Answer:

$659.25

Step-by-step explanation:

Since its 25 percent off we need to see what it would look as a decimal

1-.25=.75

879times.75= 659.25

5 0

3 years ago

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How many grams in an ounce

Mrac [35]

In 1 ounce, there is approximately 28.34 grams.

4 0

4 years ago

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