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Serjik [45]
3 years ago
10

ABCDEFGH is a regular octagon. The minimum degree of rotation by which this octagon can map onto itself is (30 ; 45 ; 90 ; 120 °

). It will take ( 2 ; 4 ; 6 ; 8 ) increments of that degree of clockwise rotation for A′ (the image of A) to coincide with C.
Mathematics
1 answer:
Damm [24]3 years ago
4 0
First one is 45 the second one is 2             
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Alice is inventorying two different warehouses. In the first warehouse, she determines that there are 4.6X10 to the third power
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A jar has 16 marbles, 10 green, 2 blue, 4 red. what is the probability of randomly choosing a red marble then without putting it
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<h3>How to find the probability?</h3>

In the jar we have a total of 16 marbles, such that:

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First, the probability of getting a red marble is give by the quotient between the number of red marbles and the total number of marbles:

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Now we need to draw a green one, the probability is computed in the same way, but this time there are 15 marbles, because we already took one.

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If you want to learn more about probability:

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