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3 years ago

PLS HELP ME ASAP FOR 20!! (MUST SHOW WORK!!) + LOTS OF POINTS maybe SHOW a pic

Mathematics

2 answers:

yuradex [85]3 years ago

7 0

A=l×w
1/6=1/3×l
l=1/2 miles, so the length of a rectangle park is 1/2 mile. Hope it help!

almond37 [142]3 years ago

6 0

1/2 because when you divide by 1/2 you get 1/6 , if you do the problem backwards you get 1/6

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The population of the world was 7.1 billion in 2013, and the observed relative growth rate was 1.1% per year. A) Estimate how lo

VLD [36.1K]

Answer:

A) 63.36 years.

B) 100.42 years.

Step-by-step explanation:

We have been given that the population of the world was 7.1 billion in 2013, and the observed relative growth rate was 1.1% per year.

A) Since we know that population increases exponentially, therefore we will use our given information to form an exponential model for population increase and then we will solve for the time by which our population will be double.

$P(t)=7.1(1.011)^{t}$

$7.1 \times 2=7.1(1.011)^{t}$

$\frac{7.1 \times 2}{7.1} =(1.011)^{t}$

$2 =(1.011)^{t}$

Now let us solve for t using logarithm.

$ln(2) =ln (1.011)^{t}$

$ln(2) =t \cdot ln(1.011)$

$0.6931471805599453 =t \cdot 0.0109399400383344$

$t=\frac{0.6931471805599453}{0.0109399400383344}$

$t=63.3593217267282743049\approx 63.36$

Therefore, it will take 63.36 years the population to be double.

B) Now we will find the number of years it will take the population to be triple of its size.

$7.1 \times 3=7.1(1.011)^{t}$

$\frac{7.1 \times 3}{7.1} =(1.011)^{t}$

$3 =(1.011)^{t}$

Now let us solve for t using logarithm.

$ln(3) =ln (1.011)^{t}$

$ln(3) =t \cdot ln(1.011)$

$1.0986122886681097 =t \cdot 0.0109399400383344$

$t=\frac{1.0986122886681097}{0.0109399400383344}$

$t=100.4221490079915311298\approx 100.42$

Therefore, it will take 100.42 years the population to triple of its size.

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2 years ago

The volume of the oblique cylinder is 24 ft3.

Assoli18 [71]

Answer:

A: The height of the cylinder is 3.4 ft.

C: The diameter of the cylinder is about 3 ft.

E: A right cylinder with the same height and radius as this oblique cylinder would also have a volume of 24 ft3.

Step-by-step explanation:

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2 years ago

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Slav-nsk [51]

Answer:

14 or 11

Step-by-step explanation:

because 14 is more than 11 and the question asks how many people it feeds not how many people can it feed out the people there

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2 years ago

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5n + 3n<br> simplify each expression

Setler79 [48]

Answer: 8n

Step-by-step explanation: 5n + 3n

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2 years ago

Don't know this please help

nikitadnepr [17]

I would say answer number 2

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2 years ago

PLS HELP ME ASAP FOR 20!! (MUST SHOW WORK!!) + LOTS OF POINTS *maybe SHOW a pic*

PLS HELP ME ASAP FOR 20!! (MUST SHOW WORK!!) + LOTS OF POINTS maybe SHOW a pic