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ioda
3 years ago
13

Need help with this question

Mathematics
2 answers:
larisa [96]3 years ago
7 0

Answer:I believe that it is the first one

Sveta_85 [38]3 years ago
3 0

Answer:

Compatible numbers

Step-by-step explanation:

Compatible numbers are pairs of numbers that are easy to add, subtract, multiply, or divide mentally. When using estimation to approximate a calculation, replace actual numbers with compatible numbers. ... An estimate of 513 + 299 is found by mentally calculating 500 + 300 = 800.

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Answer:

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Step-by-step explanation:

Given -

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The equation of circle is  represented by

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where a and b are center of circle and radius r

Comparing these equation

then a = 4  and b = 9    and r = 1

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4 years ago
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3 years ago
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alukav5142 [94]

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Step-by-step explanation:

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Hope this helped!

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