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3 years ago

Using the graph as your guide, complete the following statement.

Mathematics

1 answer:

Law Incorporation [45]3 years ago

3 0

Answer:

Option C. positive

Step-by-step explanation:

we know that

If the discriminant of a quadratic function is positive, then the quadratic function has two real solutions

If the discriminant of a quadratic function is zero, then the quadratic function has one real solution

If the discriminant of a quadratic function is negative, then the quadratic function has two complex solutions

In this problem

The quadratic function has two real solutions (x-intercepts)

therefore

The discriminant is positive

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Step-by-step explanation:

For this case we have the following dataset given:

$n= 146$ represent the sample size

$\hat p =0.23$ represent the estimated proportion of interest

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The significance level for this case would be $\alpha=1-0.95=0.05$ and the critical value for this case would be:

$z_{\alpha/2}=1.96$

The margin of error is given by:

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Answer:

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There are 52 weeks in a year, so multiply 450 by 52.

$23400

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