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Delvig [45]
3 years ago
8

A circle with an area 9pi has a sector with a central angle of 1/9pi what is the area of the sector

Mathematics
1 answer:
ludmilkaskok [199]3 years ago
8 0

Answer:

½pi or 0.5pi units²

Step-by-step explanation:

Area : angle

9pi : 2pi

x : pi/9

9pi/2pi = x/(pi/9)

4.5 × pi/9 = x

x = ½pi or 0.5pi units²

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The difference between mixed numbers gives:

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So the correct option is the third one.

<h3 /><h3>How to get the difference between mixed numbers?</h3>

Here we want to compute the difference between two mixed numbers.

First, remember that we can rewrite those as:

-5¹/₆ = (-5 - 1/6)

-8¹/₂ = (-8 - 1/2)

Now, let's go to the difference:

-5¹/₆ - (-8¹/₂)

First you can see that there are two negative signs together, so it is equivalent to a positive sign:

-5¹/₆ - (-8¹/₂) = -5¹/₆  + 8¹/₂

Now we can replace the mixed numbers to get:

-5¹/₆  + 8¹/₂ = (-5 - 1/6) + (8 + 1/2) = (8 - 5) + (1/2 - 1/6) = (3 + 2/6) = 3 + 1/3

And that can be rewritten to:

3 + 1/3 = 3¹/₃

Which is completely simplified.

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If you want to learn more about mixed numbers:

brainly.com/question/1746829

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6 0
2 years ago
Marvin used a customary unit of measure to estimate the weight of a watermelon he grew in his backyard what could the estimated
Andrej [43]

Answer:

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Step-by-step explanation:

Since Marvin uses Customary units, and considering the Watermelon.

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He could choose another customary units, but it wouldn't be practical and unusual to say a watermelon of 160 quarters, also it would leave all the listeners without parameters.

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3 years ago
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Hope this helps with the answer to your question :)

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kondor19780726 [428]

Answer: It equals 8.

Step-by-step explanation:

6 0
2 years ago
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matrenka [14]
To find percent error, you subtract the actual number from your estimate, take the absolute value, and divide by the actual number.

l 96 - 118 l
l -22 l
l 22 l
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Hope this helps!
3 0
3 years ago
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