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bulgar [2K]
3 years ago
6

I WILL MARK BRAINIEST HELP ASAP Please answer question 16

Mathematics
1 answer:
MA_775_DIABLO [31]3 years ago
7 0

Answer:

Step-by-step explanation:

The smaller rectangle has a perimeter of 200 meters. Let's say that the smaller rectangle has length 60 and width 40. This would give it a perimeter of 200, since 2*(60+40) = 200.

If these are the length and width of the smaller one, we can multiply each by 5/4 to get the length and width of the larger one.

length of larger rectangle = 60*5/4 = 75

width of larger rectangle = 40*5/4 = 50

These dimensions would give a perimeter of 250, since 2*(50 + 75) = 250.

It is worth noticing that 250 is equal to 200 * 5/4. In the future, you can simply multiply perimeter by the ratio instead of going through all these steps.

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Answer:

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Step-by-step explanation:

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g In 2013, the Pew Research Foundation reported that 43% of U.S. adults report that they live with one or more chronic condition
SOVA2 [1]

Answer:

We are 95% confident that the true proportion of U.S. adults who live with one or more chronic conditions is between 39.7% and 46.33%

Step-by-step explanation:

From the question we are told that

  The  sample  proportion is \r p = 43\%  = 0.43

   The  standard error is SE =  0.017

Given that the confidence level is 95%  then the level of significance is mathematically represented as  

      \alpha =  (100-95)\%

=>   \alpha = 0.05

Generally from the normal distribution table the critical value  of  \frac{\alpha }{2} is  

   Z_{\frac{\alpha }{2} } =  1.96

Generally the margin of error is mathematically represented as

     E = Z_{\frac{\alpha }{2} } *  SE

=>    E = 1.96 *  0.017

=>     E = 0.03332

Generally 95% confidence interval is mathematically represented as

      \r p -E <  p <  \r p +E

=>   0.43 -0.03332 <  p <  0.43 + 0.03332

=>    0.39668 <  p <  0.46332

Converting to percentage

(0.39668 * 100)<  p <  (0.46332*100)        

39.7\% <  p < 46.33 \%    

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3 years ago
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OlgaM077 [116]
The correct answer is:
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