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zhenek [66]
3 years ago
15

If the radius of the circle is 7 cm, find its area, rounded to 2 decimal places.

Mathematics
1 answer:
JulsSmile [24]3 years ago
5 0

Answer:

14 :)

Step-by-step explanation:

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That would be the area of a circle of radius 12 miles

= pi r^2 =  452.4  square miles to nearest tenth.
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3 years ago
Help me please, i’m confused. thanks!
harkovskaia [24]

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Step-by-step explanation:

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A spinner numbered 1 through 12 is spun. Find the probability that
anastassius [24]

Answer:

\dfrac{1}{6}

Step-by-step explanation:

Let <em>A</em> be the event of getting an odd number.

<em>P(A)</em> be the probability of getting an odd number.

Total odd numbers here are 6 i.e. \{1,3,5,7,9,11\}

Here, total numbers in the game are 12 i.e \{1,2,3,....,12\}.

Formula for probability of an <em>event E</em> can be observed as:

P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}

P(A) = \dfrac{6}{12}\\\Rightarrow \dfrac{1}{2}

Let <em>B</em> be the event of getting 11.

<em>P(B)</em> be the probability of getting 11.

Total number of possible cases is 1.

P(B) = \dfrac{1}{12}

P(A \cap B) is the probability that we get 11 and an odd number.

Possible number of cases = 1

P(A\cap B) = \dfrac{1}{12}

<em>P(B/A)</em> is the probability that we get an 11 given that it is an odd number.

P(B/A) = \dfrac{P(A \cap B)}{P(A)}\\\Rightarrow \dfrac{\dfrac{1}{12}}{\dfrac{1}{2}}\\\Rightarrow \dfrac{1}{6}

Hence, P(B/A) = \dfrac{1}{6}

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4 years ago
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Answer:

9

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if z=8 then z^2 would be 64, which is not equal to 80

iz z=9 then z^2 would be 81, which is closer to 80 than 64

therefore, 9 is the whole number than z would be closest to

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3 years ago
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Whitepunk [10]
3x-10+x+8=90
4×-2=90
4x=92
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One angle is 31. 23+8
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