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Romashka-Z-Leto [24]
3 years ago
7

A bag contains 3 green, 4 blue, 2 red, 1 black, 6 yellow and 4 brown marbles. Suppose you randomly select a marble, replace it i

n the bag, and randomly pick a second
marble. What is the probability you pick a blue marble and then another blue marble?
Mathematics
1 answer:
natima [27]3 years ago
7 0

Answer:

1/25

Step-by-step explanation:

At the start there is a 4/20 (1/5) chance of drawing a blue marble. After putting the marble back in the bag, there is again a 1/5 chance of drawing a blue marble again. To calculate the overall probability, you must multiply the two numbers together: 1/5 x 1/5 = 1/25.

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Answer: A. There all 90 degrees


Step-by-step explanation:

Given: Three parallel lines are cut by a transversal and one angle is measured to be 90 degrees.

We know that if two lines cut by transversal the following pairs are equal:

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If one angles measures 90°, then its supplement would be 90°.

Then by using above properties , we will get measure of all angles as 90°.



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Step-by-step explanation:

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