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2 years ago

What are the solution(s) to the quadratic equation 50 - x2 = 0?

Mathematics

1 answer:

Pie2 years ago

3 0

Answer:

±5sqrt(2) = x

Step-by-step explanation:

50 - x^2 = 0

Add x^2 to each side

50 - x^2 +x^2= 0+x^2

50 = x^2

Take the square root of each side

±sqrt(50) = sqrt(x^2)

±sqrt(25*2)) = x

±sqrt(25) sqrt(2) = x

±5sqrt(2) = x

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vovikov84 [41]

Answer:

Step-by-step explanation:

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Bingel [31]

Answer:

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Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

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Rouding up

We need a sample size of at least 719

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