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mrs_skeptik [129]
3 years ago
5

Rewrite this decimal fraction as a decimal number. 2 8/100

Mathematics
1 answer:
Lina20 [59]3 years ago
7 0
The decimal version of  2 8/100 is 2.08

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WILL MARK BRANLIESTTT<br> What is the value of x?<br> A. 42°<br> B. 48<br> C. 64°<br> D. 84
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Answer:

<h2>D.84</h2>

Step-by-step explanation:

<u>*It's an isosceles triangle so 2 of the angles are going to be the same degrees</u>

<u>*Every triangle is 180 degrees</u>

(48)+(48)=96 then 180-96=84

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An Article a Florida newspaper reported on the topics that teenagers most want to discuss with their parents. The findings, the
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Answer:

The estimate is  P__{hat}} \pm E  = 0.37 \pm 0.0348

Step-by-step explanation:

From the question we are told that  

    The sample size is  n =  522

    The sample proportion of students  would like to talk about school is  \r p__{hat}} =  0.37

  Given that the confidence level is  90 % then the level of significance can be mathematically evaluated as

                  \alpha  =  100 - 90

                  \alpha  =  10\%

                  \alpha  =  0.10

Next we obtain the critical value of  \frac{\alpha }{2} from the normal distribution table, the value is  

               Z_{\frac{\alpha }{2} } =Z_{\frac{0.10}{2} } =  1.645

Generally the margin of error can be mathematically represented as

               E =  Z_{\frac{\alpha }{2} } *  \sqrt{\frac{\r P_{hat}(1- \r P_{hat} )}{n } }

=>            E = 1.645 *  \sqrt{\frac{0.37 (1- 0.37  )}{522 } }

=>             E = 0.0348

Generally the estimate the proportion of all teenagers who want more family discussions about school at 90% confidence level is  

                       P__{hat}} \pm  E

substituting values

                     0.37 \pm 0.0348

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