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4 years ago

Determine the solution for X^2-3x-28>0[–7, 4][–4, 7] or or

Mathematics

2 answers:

Daniel [21]4 years ago

6 0

Check the attachment for answer.

alina1380 [7]4 years ago

3 0

Answer:

its the third one

Step-by-step explanation:

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Angles!!!!!!!!!!!!!!!!!

schepotkina [342]

1= 136 degrees

2= 44 degrees

3= 136 degrees

5 0

3 years ago

Read 2 more answers

An article reported that, in a study of a particular wafer inspection process, 356 dies were examined by an inspection probe and

Marta_Voda [28]

Answer:

The 95% confidence interval for the proportion of all dies that pass the probe is (0.637, 0.733).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the z-score that has a p-value of $1 - \frac{\alpha}{2}$ .

356 dies were examined by an inspection probe and 244 of these passed the probe.

This means that $n = 356, \pi = \frac{244}{356} = 0.685$

95% confidence level

So $\alpha = 0.05$ , z is the value of Z that has a p-value of $1 - \frac{0.05}{2} = 0.975$ , so $Z = 1.96$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.685 - 1.96\sqrt{\frac{0.685*0.315}{356}} = 0.637$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.685 + 1.96\sqrt{\frac{0.685*0.315}{356}} = 0.733$

The 95% confidence interval for the proportion of all dies that pass the probe is (0.637, 0.733).

4 0

3 years ago

Find the equation of a line that is parallel to y = 5x + 7 and passes through (4, 3)

vredina [299]

Answer:

B) y=5x-17

Step-by-step explanation:

I got this answer, by first making sure it was parallel to y=5x+7. Which was easy because the only thing they need to be parallel is the same slope, in this case was 5. Next I pluged in (4,3) to y=5x-17. I substituted 4 into x and got 20. Then I substituted 3 into y. Since 20-17 is equal to 3, then B. is your answer.

7 0

4 years ago

Read 2 more answers

Solve for L:<br> P=2L+2W

Korvikt [17]

Answer:

$L=\frac{1}{2}P-W$