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fredd [130]
3 years ago
13

What is the approximate area of a circle with a radius of 13cm? A.40.8cm² B.530.7cm² C.784cm² D.2461.8cm²

Mathematics
2 answers:
andriy [413]3 years ago
7 0
The area of a circle can be found by the formula A=pi*r^2. Pi equals 3.14 so multiply that by 13^2. 13^2 equals 169. So 3.14 * 169 = 530.66 cm^2 and that rounded is B) 530.7cm^2
Gnesinka [82]3 years ago
4 0
It would be B (530.7) because if you do 3.14 x 13 x 13 (Or to the second power) Then you get 530.66, the round to the nearest tenths 
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Question: Elizabeth has 1 7/10 as many plants as Rosalie has in her garden. If Elizabeth has 51 plants, how many plants does Rosalie have in her garden?

Answer: X=30

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1 7/10 can be rewritten as 1.7

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question answered by

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3 years ago
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Answer:

They would recieve cents as change.

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3 years ago
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Explanation:

Just because the data points trend upward (as you go from left to right), it does not mean the data is linearly associated.

Consider a parabola that goes uphill, or an exponential curve that does the same. Both are nonlinear. If we have points close to or on these nonlinear curves, then we consider the scatterplot to have nonlinear association.

Also, you could have points randomly scattered about that don't fit either of those two functions, or any elementary math function your teacher has discussed so far, and yet the points could trend upward. If the points are not close to the same straight line, then we don't have linear association.

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In short, if the points all fall on the same line or close to it, then we have linear association. Otherwise, we have nonlinear association of some kind.

Joseph's claim that an increasing trend is not enough evidence to conclude the scatterplot is linear or not.

8 0
3 years ago
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Step-by-step explanation:

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