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ioda
3 years ago
10

Find the area of the circle given the following information. Give the exact answer and an approximation to the nearest tenth.

Mathematics
2 answers:
SpyIntel [72]3 years ago
8 0
A = 3.14 x r^2
= 3.14 x 6^2
= 3.14 x 36
= 103.62
goblinko [34]3 years ago
3 0

________________________________

<em>Hey</em><em>!</em><em>!</em><em>!</em><em>!</em><em> </em>

<h3><em>Sol</em><em>ution</em><em>,</em></h3>

<em>Diameter</em><em>=</em><em>1</em><em>2</em><em> </em><em>in</em>

<em>Radius</em><em>=</em><em>1</em><em>2</em><em>/</em><em>2</em><em> </em><em>=</em><em>6</em><em> </em><em>inch</em>

<em>Now</em><em>,</em><em> </em>

<em>Area</em><em> </em><em>of</em><em> </em><em>circle</em><em>=</em><em>pi</em><em> </em><em>r</em><em> </em><em>^</em><em>2</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em>3</em><em>.</em><em>1</em><em>4</em><em>*</em><em>(</em><em>6</em><em>)</em><em>^</em><em>2</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em>3</em><em>.</em><em>1</em><em>4</em><em>*</em><em>3</em><em>6</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em>1</em><em>1</em><em>3</em><em>.</em><em>0</em><em>4</em><em> </em><em>inches^</em><em>2</em>

<h3><em>So</em><em> </em><em>the</em><em> </em><em>area</em><em> </em><em>of</em><em> </em><em>circle</em><em> </em><em>is</em><em> </em><em>1</em><em>1</em><em>3</em><em>.</em><em>0</em><em>4</em><em> </em><em>inches^</em><em>2</em><em>.</em></h3>

<em>Hope</em><em> </em><em>it</em><em> </em><em>helps</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>

<em>Good</em><em> </em><em>luck</em><em> </em><em>on</em><em> </em><em>your</em><em> </em><em>assignmen</em><em>t</em>

<em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em><em>_</em>

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Answer:

y = \frac{4}{3} x - 12

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - \frac{3}{4} x ← is in slope- intercept form

with slope m = - \frac{3}{4} , c = 0

Given a line with slope m then the slope of a line perpendicular to it is

m_{perpendicular} = - \frac{1}{m} = - \frac{1}{-\frac{3}{4} } = \frac{4}{3} , then

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4 0
2 years ago
Please help ASAP thank you!!!!
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Answer:

41. f⁻¹(x) = -9x + 4

43. m⁻¹(x) = ∛(x-2)/4  

Step-by-step explanation:

41. y = (4-x)/9

swap x and y: x = (4-y)/9

solve y: 9x = 4-y

             y = -9x + 4

45. y = 4x³+2

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During a weekend the manager of a mall gave away gift cards to every 80th person who visited the mall. On saturday 12010 on sund
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Answer:

172.8 people got a gift card

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3 years ago
The world population at the beginning of 1980 was 4.5 billion. Assuming that the population continued to grow at the rate of app
AfilCa [17]

Answer:

Q(t) = 4.5(1.013)^{t}

The world population at the beginning of 2019 will be of 7.45 billion people.

Step-by-step explanation:

The world population can be modeled by the following equation.

Q(t) = Q(0)(1+r)^{t}

In which Q(t) is the population in t years after 1980, in billions, Q(0) is the initial population and r is the growth rate.

The world population at the beginning of 1980 was 4.5 billion. Assuming that the population continued to grow at the rate of approximately 1.3%/year.

This means that Q(0) = 4.5, r = 0.013

So

Q(t) = Q(0)(1+r)^{t}

Q(t) = 4.5(1.013)^{t}

What will the world population be at the beginning of 2019 ?

2019 - 1980 = 39. So this is Q(39).

Q(t) = 4.5(1.013)^{t}

Q(39) = 4.5(1.013)^{39} = 7.45

The world population at the beginning of 2019 will be of 7.45 billion people.

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