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Anna007 [38]
2 years ago
5

The diameter of a semicircle is 8 kilometres. What is the semicircle's perimeter?

Mathematics
1 answer:
Andrei [34K]2 years ago
7 0

Answer:

4pi + 8 km

Step-by-step explanation:

the circumference of teh circle is d*pi = 8pi. since this is a semicircle the circumference is 4pi. then the perimeter is 4pi + 8

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If Angle A = 5x-10, find the value(s) for x that would ensure that Angle A was an obtuse angle.
morpeh [17]

Answer:

20 < x < 38.

Step-by-step explanation:

An obtuse angle has a value between 90 and 180.

90 < 5x - 10 < 180

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x < 38

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4 years ago
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2 years ago
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Tems11 [23]

Answer: B. (2,1)

Step-by-step explanation:

its not c because if you look at R you see that it is going 4,3 not 3,4 because when you doing ratios on a number line it goes x-axis then y-axis next not y-axis then the x-axis.

It's not D because if you look at Q you see that it is going 3,5 not 5,3 because when you doing ratios on a number line it goes x-axis then y-axis next not y-axis then x-axis.

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Stolb23 [73]

Answer:

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Step-by-step explanation:

so average is found by taking the sum of numbers of all the numbers given, and dividing by the number of numbers

so

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3 years ago
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