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nadezda [96]
3 years ago
14

Solve using quadratic formula. 7x^2-12x+3=0

Mathematics
1 answer:
vazorg [7]3 years ago
4 0
X = (12 +- sqrt (144 -4(7)(3))/14
x = (12 + - sqrt (144 - 84))/14
x = (12 + - sqrt(60))/14
x = (12 + - 2sqrt 15))/14
x = (6 + - sqrt 15) / 7 
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The 95% margin of error simony states that there is a 95% probability that the confidence interval contains the true population mean.

<h3>What is a margin of error?</h3>

It should be noted that the margin of error simply means a measurement that accounts for the difference between the actual result and the projected result in a survey sample.

In this case, the 95% margin of error simply states that there is a 95% probability that the confidence interval contains the true population mean. This is the radius of the 95% confidence interval.

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brainly.com/question/27909412

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joja [24]

Answer:

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Step-by-step explanation:

We are given the following information in the question:

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Variance = 25 days

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Formula:

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0.726 is the probability that the project will be completed in 33 days or less.

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5 and 3 LCM is 15.

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suter [353]

Answer:

A

Step-by-step explanation:

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