3 years ago

Identify the property x + 3 = x + 3

Mathematics

2 answers:

lianna [129]3 years ago

5 0

the answer is communicative

salantis [7]3 years ago

4 0

Answer:

I think its commutative

Step-by-step explanation:

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What is the probability that this spinner will stop on blue or white when it is spun?

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Answer:

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Step-by-step explanation:

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3 years ago

the area of a circle is 81 pi m^2. what is the circumference, in meters? express your answer in terms of pi.

mestny [16]

<h3>Answer: 18pi</h3>

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Explanation:

The area 81pi square meters leads to the radius 9 meters

Use the formula A = pi*r^2 to see why this is the case. You plug in A = 81pi and solve for r to get r = 9.

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Once you know the radius, you can determine the circumference C

C = 2*pi*r

C = 2*pi*9

C = 2*9*pi

C = 18pi

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Step-by-step explanation:

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