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sladkih [1.3K]
3 years ago
12

What is the circumference of the circle if r = 3.5 feet? Use 22 7 for π.45 pts

Mathematics
2 answers:
Natasha_Volkova [10]3 years ago
6 0
We know, Circumference of a Circle = 2πr
C = 2 * 22/7 * 3.5
C = 2 * 22/2
C = 2 * 11
C= 22

In short, Your Answer would be 22 Feet 

Hope this helps!
Komok [63]3 years ago
3 0
3.5 x 3.14(pi) = 10.99
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Add 3/4+(−2 1/2) using the number line.
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-1 3/4

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4) A line has a slope of -5 and passes through the point (2, 2). An equation for this line is
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D: y= -5x+12

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Since the slope is -5 is either C or D. Let's replace x= 2 in either to see what we get.

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Michelle is making a scale model of her favorite car. The actual car is 8 feet long and 4 feet wide. Michelle wants her model to
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6 inches

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Find the volume of the cylinder in terms of π and to the nearest tenth.
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5 0
3 years ago
Pls help i will give brainly!!!
Hatshy [7]

Answer:

Greatest population density: Denmark

Smallest population density: The U.S.

Step-by-step explanation:

Population density = population / area

So let's find the population density of each country

For U.S

Population: 272,648,000

Area: 9,364,520 sq km

Population density: 272,648,000/9,364,520=29.1 ( rounded to the nearest tenth )

So the population density of the U.S is 29.1 people per sq km

For Denmark

Population: 5,248,000

Area: 42,077

Population density: 5,248,000/42,077=124.7 ( rounded to the nearest tenth )

So the population density of Denmark is 124.7 people per sq km

For Ghana

Population: 18,339,000

Area: 237,533

Population density: 18,339,000/237,533=77.2 ( rounded to the nearest tenth ).

So the population density of Ghana is 77.2 people per sq km

Now that we have calculated the population density of each country let's look back at the question

Which country has the greatest population density? Which country has the least?

Looking at the population densities we can conclude that Denmark has the largest population density at 124.7 people per sq km and the U.S. has the smallest population density at 29.1 people per sq km

3 0
3 years ago
Read 2 more answers
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