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polet [3.4K]
3 years ago
13

The probability of a biased coin landing on heads is 2/7 complete the tree diagram

Mathematics
2 answers:
mamaluj [8]3 years ago
8 0

Answer:

The numbers needed to fill each box are in the image attached

Step-by-step explanation:

The probability of the coin landing on heads is 2/7, so the probability of it landing on tails is 1 - 2/7 = 5/7

The probability of landing heads 2 times is:

P = (2/7) * (2/7) = 4/49

The probability of landing heads and then tails is:

P = (2/7) * (5/7) = 10/49

The probability of landing tails and then heads is:

P = (5/7) * (2/7) = 10/49

The probability of landing tails 2 times is:

P = (5/7) * (5/7) = 25/49

The numbers needed to fill each box are in the image attached.

Mice21 [21]3 years ago
8 0

<u>Step-by-step:</u>

The first flip numbers will always add up to 1 so you do

1 - 2/7= 5/7

now it gets easy...

The second flip  head will be 2/7 because it is a biased dice and the second flip tail will be 5/7

This also applies for the bottom 2: 2/7 head, 5/7 tails

hope this helped :)

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What is a verbal expression for w-24
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Explanation: It would be (What is a 24 less than a number <em>w.</em>), because less than means subtract and you will write it the opposite of how you say it.

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5 0
3 years ago
Translate and solve: <br> Six more than twice a<br> number is atleast -8
pantera1 [17]

Answer:

x > -7

Step-by-step explanation:

Step 1: Translate

Twice a number = 2x

Six more = + 6

At least = >

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Step 2: Write out inequality

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Step 3: Solve

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3 years ago
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frosja888 [35]

Answer:

x=125

Step-by-step explanation:

∠PAT=180° - ∠ATP - ∠APT

∠PAT=180 - 3x - 3 -4x -4= (173 - 7x)°

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If this is true, that point must belong to both lines.

To check this, plug x=3 in both equations, and you must get y=6 once you simplifiy all the numbers.

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