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2 years ago

Anime recommendations?

Mathematics

2 answers:

svlad2 [7]2 years ago

4 0

my favorites --

-- jormungand

-- the god of high school

-- stars align

-- haikyuu

-- terror in resonance

-- bungou stray dogs

-- attack on titan

Alex17521 [72]2 years ago

3 0

Naruto, hxh, my hero academia but ignore the fandom, Tokyo ghoul, banana fish, and a lot more
I have an entire list if you want

You might be interested in

350.0 billion nanoliters to decaliters

Alex17521 [72]

That would be 35 Decaliters
I hope I helped :3

3 0

3 years ago

Read 2 more answers

Choose the equation of the line that is equal to the x-axis.

stiv31 [10]

Answer:

C) x=y

hope it helps.

<h3>stay safe healthy and happy.</h3>

8 0

2 years ago

Solve the following inequality for mm. Write your answer in the simplest form.<br> 10m − 3 > 6m+1

Georgia [21]

Answer:

m > 1

Step-by-step explanation:

Given: 10m − 3 > 6m+1

Add 3 to both sides: 10m > 6m + 4

Subtract 6m from both sides: 4m > + 4

Divide both sides by 4: m > 1

3 0

2 years ago

Read 2 more answers

Ralph and Waldo start in towns that are 70 miles apart and travel in opposite directions for 4 hours.

Lina20 [59]

Answer:

Step-by-step explanation:

Let Waldo's speed = W

Let Ralph's speed = W + 15

Waldo's distance = speed * Time

Time = 4 hours.

Speed = w

distance = 4 * w

Ralph's speed is W + 15. It's not clear if you need a number. We'll get around to that later.

Ralph traveled 4*(W + 15)

4w + 70 + 4(W + 15) = d

You really can't get a definite answer to these questions. Even if you knew whether they were heading away from each other or towards each other it wouldn't help.

6 0

2 years ago

Nitrates are groundwater contaminants derived from fertilizer, septic tank seepage and other sewage. Nitrate poisoning is partic

o-na [289]

Answer:

a) $n=\frac{0.5(1-0.5)}{(\frac{0.02}{1.96})^2}=2401$

And rounded up we have that n=2401

b) $n=\frac{0.07(1-0.07)}{(\frac{0.02}{1.96})^2}=625.22$

And rounded up we have that n=626

And we see that if we have previous info about p the sample size varies a lot.

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

Solution to the problem

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 95% of confidence, our significance level would be given by $\alpha=1-0.95=0.05$ and $\alpha/2 =0.025$ . And the critical value would be given by:

$z_{\alpha/2}=-1.96, z_{1-\alpha/2}=1.96$

Part a

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)

And on this case we have that $ME =\pm 0.02$ 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)

Since we don't have prior information about the population proportion we can use ase estimator $\hat p =0.5$ . And replacing into equation (b) the values from part a we got:

$n=\frac{0.5(1-0.5)}{(\frac{0.02}{1.96})^2}=2401$

And rounded up we have that n=2401

Part b

For thi case the estimator for p is $\hat p =0.07$

$n=\frac{0.07(1-0.07)}{(\frac{0.02}{1.96})^2}=625.22$

And rounded up we have that n=626

And we see that if we have previous info about p the sample size varies a lot.

4 0

2 years ago