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-Dominant- [34]

3 years ago

11

Suppose a student is totally unprepared for a five question true or false test and has to guess for every question. Getting one

question correct is independent of getting another question correct. What is the probability that she guessed all five of them correctly?

1 answer:

MrRa [10]3 years ago

3 0

Answer:

1/32

Step-by-step explanation:

½×½×½×½×½ = 1/32

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Solve by taking the square root of both sides. 3(x+4)^2-24=0

VARVARA [1.3K]

<span>3(x+4)^2-24=0
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<span>3(x+4)^2 = 24
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<span>(x+4)^2 = 24/3
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<span>(x+4)^2 = 8
</span><span>
</span><span>(x+4)² = (2√2)² ⇒ x+4 = 2√2 ⇒ x = 2√2 - 4
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