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2 years ago

HIGH POINTS/WILL MARK BRAINLIEST

Mathematics

1 answer:

Art [367]2 years ago

5 0

Answer:

The leading term is 2x^7. Since n is odd and a is positive, the end behavior is down and up.

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S_A_V [24]

Answer:

Answer is the 72.02 cm³ .I hope it's helpful to you.

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3 years ago

What is the y-intercept of the line given by the equation y equals two x minus nine?

jenyasd209 [6]

Y-Intercept= -9

Your equation is Y=mx+b, and b is the Y-Intercept

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2 years ago

You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable preliminary estim

pogonyaev

Answer:

$n=\frac{0.5(1-0.5)}{(\frac{0.025}{1.28})^2}=655.36$

And rounded up we have that n=656

Step-by-step explanation:

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 80% of confidence, our significance level would be given by $\alpha=1-0.80=0.20$ and $\alpha/2 =0.10$ . And the critical value would be given by:

$z_{\alpha/2}=\pm 1.28$

Solution to the problem

The margin of error for the proportion interval is given by this formula:

$ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}$ (a)

Since we don't have prior info for the proportion of interest we can use $\hat p=0.5$ as estimator. And on this case we have that $ME =\pm 0.025$ and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}$ (b)

And replacing into equation (b) the values from part a we got:

$n=\frac{0.5(1-0.5)}{(\frac{0.025}{1.28})^2}=655.36$

And rounded up we have that n=656

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3 years ago

Can someone help plssss<br> which of the equations below could be the equation of this parabola?

RideAnS [48]

Answer:

Step-by-step explanation:

Both of the y= make upward parabolas

It is also going into the positive direction so it is $x = \frac{1}{4}y^2$

6 0

2 years ago

Read 2 more answers

PLEAS HELP!!!!!

Veseljchak [2.6K]

Answer: 11.59 months

Step-by-step explanation:

You need to divide 339.12 by 29.26. Then you should check your answer by multiplying 11.59 by 29.26. Which should get you 339.1234. When you sound that you get 339.12. Hope this helps!!

4 0

2 years ago