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alukav5142 [94]
2 years ago
12

A bottle contains 20 blue bags and 15 red bags. If two bags are picked at random one after the other with replacement, what is t

he probability that the first bag is blue and then red?
Mathematics
1 answer:
babymother [125]2 years ago
7 0

Answer:

<h2> 12÷49</h2>

Step-by-step explanation:

The total number of bags in the bottle = 20 + 15 = 35

Then

the probability that the first bag is blue = 20/35

If we replace the first bag :

the probability that the second (picked) bag is blue = 15/35

Conclusion:

If two bags are picked at random one after the other with replacement

Then

the probability that the first bag is blue and then red is :

(20÷35)×(15÷35)

= (4÷7)×(3÷7)

= 12÷49

= 0.244897959184

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Answer:

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Convert the Cartesian equation (x 2 + y 2)2 = 4(x 2 - y 2) to a polar equation.
SashulF [63]

<u>ANSWER</u>

{r}^{2}  = 4  \cos2\theta

<u>EXPLANATION</u>

The Cartesian equation is

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Let us evaluate the exponents to get:

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Factor the RHS to get:

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Divide through by r²

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