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Alina [70]
3 years ago
6

Use long division to convert − 74 8 to a decimal.

Mathematics
2 answers:
chubhunter [2.5K]3 years ago
4 0

Answer:

−9.25

Step-by-step explanation:

Since the fraction is negative, the decimal equivalent is negative, too. Divide 74 by 8. The answer is −9.25.

nasty-shy [4]3 years ago
3 0

Answer: 9.25

Step-by-step explanation:

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You are trying to estimate the average amount a family spends on food during a year. In the past the standard deviation of the a
svetoff [14.1K]

Answer:

n=(\frac{2.58(1000)}{50})^2 =2662.56 \approx 2663

So the answer for this case would be n=2663 rounded up to the nearest integer

Step-by-step explanation:

We have the following info:

ME = 50 margin of error desired

\sigma = 1000 the standard deviation for this case

The margin of error is given by this formula:

ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}    (a)

And on this case we have that ME =50 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

n=(\frac{z_{\alpha/2} \sigma}{ME})^2   (b)

The critical value for 99% of confidence interval now can be founded using the normal distribution. The significance is \alpha=0.01. And for this case would be z_{\alpha/2}=2.58, replacing into formula (b) we got:

n=(\frac{2.58(1000)}{50})^2 =2662.56 \approx 2663

So the answer for this case would be n=2663 rounded up to the nearest integer

5 0
3 years ago
HELP ME PLEAEEEE .HOW TO SOLVE IT
Mrac [35]
You need to clarify whether you need the x or the y or both
4 0
3 years ago
PLEASE HELP AND SHOW WORK i'm very confused
noname [10]

Answer:

a. about 15.51 miles, rounded to 15.5 miles

b. about 31.02 miles, rounded to 31 miles

Step-by-step explanation:

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

 10           20           40          80             160       320        640

 1280      2560        5120      10240       20480   40960    81920

81920/5280 = 15.51515151, rounded to the nearest tenth of a mile, 15.5 miles

Question b asks for how many miles in total has he ran. That means we have to add each of the values shown above and that equals to 163830 feet.

Divide that by 5280 and that equals 31.02 miles, rounded to the nearest tenth, 31 miles.

 

4 0
3 years ago
Choose the ratio equivalent to 10/9
satela [25.4K]
<h3>Answer:</h3>

30/27, 20/18...

<h3>Solution:</h3>
  • There are <em>infinitely many ratios equivalent to 10/9.</em>
  • Here are <em>some </em>of them:
  • 30/27
  • 20/18
  • 100/90
  • 60/54

Hope it helps.

Do comment if you have any query.

3 0
2 years ago
Your teacher wants to encourage you to work harder. Which measure should your teacher use? Explain.
Paul [167]

Answer:

The FitnessGram™ Pacer Test is a multistage aerobic capacity test that progressively gets more difficult as it continues. The 20 meter pacer test will begin in 30 seconds. Line up at the start. The running speed starts slowly, but gets faster each minute after you hear this signal. Ding  A single lap should be completed each time you hear this sound. Ding  Remember to run in a straight line, and run as long as possible. The second time you fail to complete a lap before the sound, your test is over. The test will begin on the word start. On your mark, get ready, ding

Step-by-step explanation:

7 0
3 years ago
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