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3 years ago

13

The classroom encyclopedia set seems to fill a shelf that is 24 in long each book is 3/4 in thick how many books are in the clas

sroom set

1 answer:

gavmur [86]3 years ago

7 0

24 divided by 3/4= 24*4/3=32books

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Hanson and his classmates placed colored blocks on a scale during a science lab. The blue block weighed 8.1 pounds and the green

Alexeev081 [22]

Answer:

4.342

Step-by-step explanation:

8.1 - 3.758 = 4.342

When you are trying to find the amount of difference between two values you subtract the value less than the other and there you go, the solution!

I hope it was as simple as that and that this helped!

3 0

2 years ago

What is the square root of 200 - the square root of 32

Lady_Fox [76]

$\sqrt{200}-\sqrt{32}=\sqrt{100*2}-\sqrt{16*2}=10\sqrt{2}-4{\sqrt{2}=6\sqrt{2}$

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3 years ago

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everything 3 days seth goes to the grocery store his best friend brian goes 5 days on what day will they both go on to the store

7nadin3 [17]

Wednesday??????????????????????????????????????

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3 years ago

In 2015 as part of the General Social Survey, 1289 randomly selected American adults responded to this question:

Radda [10]

Answer:

B (0.312, 0.364)

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 interval $1-\alpha$ , we have the following confidence interval of proportions.

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

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$

For this problem, we have that:

1289 randomly selected American adults responded to this question. This means that $n = 1289$ .

Of the respondents, 436 replied that America is doing about the right amount. This means that $\pi = \frac{436}{1289} = 0.3382$ .

Determine a 95% confidence interval for the proportion of all the registered voters who will vote for the Republican Party. 

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

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.3382 - 1.96\sqrt{\frac{0.3382*0.6618}{1289}} = 0.312$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.3382 + 1.96\sqrt{\frac{0.3382*0.6618}{1289}} = 0.364$

The 95% confidence interval is:

B (0.312, 0.364)

5 0

3 years ago

What is 309*692 i have noooooooo idea

adell [148]

309 times 692 ***********************

6 0

3 years ago

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