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agasfer [191]
3 years ago
12

How would I do number 13 and what's the answer? Please help!!!

Mathematics
1 answer:
Dimas [21]3 years ago
5 0
Area is 9 x 3.14 = 28.3
C = 6 x 3.14 = 18.8
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ASSIGNMENT
Sergeu [11.5K]

Answer:

B. 140 degrees

Step-by-step explanation:

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3 years ago
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A) find a cartesian equation for the curve described by the given polar equation. r =3 sin g
Radda [10]
Recall that r^2 = x^2 + y^2, so that r = sqrt(x^2+y^2).

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r = 3 sin g becomes    sqrt(x^2+y^2) = 3*-----------------------
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Squaring both sides,

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If this is correct (and I'm not convinced that it is), then (x^2+y^2)^2 = 9y^2
shows the relationship between x and y.  Can anyone improve on this result?

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120 , I think ......................
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The answer to this question is B) 0
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