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sattari [20]
3 years ago
15

Find the area and circumference of a circle with diameter 8yd

Mathematics
2 answers:
Klio2033 [76]3 years ago
5 0
The area is 25.12 and the circumference is also 25.12
Lilit [14]3 years ago
4 0
50.27yd²
Using the formulasA<span>=</span><span>π</span><span>rto the second power</span>d<span>=</span><span>2</span><span>r</span>Solving forAA=14πd2=14·π·82≈50.26548yd²
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Write the radical below in the simplest radical form<br><br> √210 <br><br> Pls show ur work
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Answer:

\sqrt{210}

Step-by-step explanation:

Let's look at the prime factors of 210.

210 = 2 * 3 * 5 * 7

\sqrt{210} = \sqrt{2 \times 3 \times 5 \times 7} = \sqrt{210}

Since no factor appears more than once, this radical cannot be simplified.

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2 years ago
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Brilliant_brown [7]

Answer:

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2 years ago
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dusya [7]

Answer: 11x-8y=-9

Step-by-step explanation:

For this exercise you need to remember:

1) The mulitplication of signs:

(+)(+)=+\\(-)(-)=+\\(-)(+)=-\\(+)(-)=-

2) By definition, like terms contain the same variables with the same exponent.

Then knowing this, and given the equations:

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You must subtract the like terms, which means that you must subtract the numerical coefficients of each term.

Then, you get the result is:

8x - 4y = -4\\-3x+ 4y = 5\\...............................................\\8x-(-3x)-4y-4y=-4-5\\8x+3x-8y=-9\\11x-8y=-9

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3 years ago
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Read 2 more answers
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