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nignag [31]
3 years ago
7

Which line has a slope of 0? A: x = 1 B: 3y + 6x = 0 C: y = x D: y = -5

Mathematics
1 answer:
padilas [110]3 years ago
3 0

Answer:

D) y=-5

Step-by-step explanation:

..............

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Suppose that you are given a bag containing n unbiased coins. You are told that n-1 of these coins are normal, with heads on one
gladu [14]

Answer:

The (conditional) probability that the coin you chose is the fake coin is 2/(1 + n)

Step-by-step explanation:

Given

Total unbiased coin = n

Normal coins =n - 1

Fake = 1

The (conditional) probability that the coin you chose is the fake coin is represented by

P(Fake | Head)

And it's calculated as follows;

P(Fake | Head) = P(Fake, Head) ÷ P(Head) ----- (1)

Where P(Fake, Head) = P(Fake) * P(Head | Fake)

P(Fake) = 1/n --- because only one is fake

P(Head | Fake) = n/n because all coins (including the fake) have head

So, P(Fake, Head) = P(Fake) * P(Head | Fake) becomes

P(Fake, Head) = 1/n * n/n

P(Fake, Head) = 1/n

P(Head) is calculated by

P(Fake) * P(Head | Fake) + P(Normal) * P(Head | Normal)

P(Fake) * P(Head | Fake) = P(Fake, Head) = 1/n (as calculated above)

P(Normal) * P(Head | Normal) = ½ * (n - 1)/n ----- considering that the coin also has a tail with equal probability as that of the head.

Going back to (1)

P(Fake | Head) = P(Fake, Head) ÷ P(Head) becomes

P(Fake | Head) = (1/n) ÷ ((1/n) + (½(n-1)/n))

= (1/n) ÷ ((1/n) + (½(n-1)/n))

= (1/n) ÷ (1/n + (n - 1)/2n)

= (1/n) ÷ (2 + n - 1)/(2n)

= (1/n) ÷ (1 + n)/(2n)

= (1/n) * (2n)/(1 + n)

= 2/(1 + n)

Hence, the (conditional) probability that the coin you chose is the fake coin is 2/(1 + n)

5 0
3 years ago
7.
Cloud [144]

Answer:

não sei não falo seu idioma

7 0
3 years ago
SOMEONE PLEASE HELP ME WITH THIS ASAP THIS IS ONE OF MY LAST QUESTIONS AND PLEASE SHOW WORK
-Dominant- [34]

Answer:

1296 ft^3.

Step-by-step explanation:

The ratio of the volumes = 1^3 : 6^3

= 1 : 216.

So volume of the larger figure = 6 * 216

= 1296 ft^3.

5 0
3 years ago
HELP HELP HELP HELP HELP HELP PLSSS
Kaylis [27]

Answer:

transpiration and evaporation

7 0
2 years ago
Read 2 more answers
A girl's feet are negative 4 over 5 yards from the surface of a pool. A boy's feet are negative 2 over 5 yards from the surface
ANTONII [103]
There are many ways you can do this. To me, the easiest way is cross multiplying, but since the denominators are the same, there is no need to do that. Also, the fractions are negatives, the one closest to 0 is closer to the surface of the pool
-4/5 = -2/5 in this case -2/5 is closer to the surface of the pool.

Answer: the boy's feet are closer to the surface of the pool
6 0
3 years ago
Read 2 more answers
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