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likoan [24]
3 years ago
9

12345 :- 987 me pueden ayudar con esta division

Mathematics
1 answer:
Sophie [7]3 years ago
4 0
12.50 espero que te sirva :)
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Please answer this question only if you know it!! 25 points and brainliest!!
rewona [7]

Answer:

D

Step-by-step explanation:

Take 1200+1300+850= 3350

Money per week

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8*10*5= 400 $ per week

3350/400= 8.3

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3 years ago
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What is the expression (a^2+b^2)^2 is equivalent to
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<span>(a^2+b^2)^2
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Louis plans to buy a new washing machine. The washing machine costs $560 and has an estimated annual operating cost of $48. Whic
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Answer:

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2 years ago
Alaina’s sugar cookie recipe calls for 21 4 cups of flour per batch. If she wants to make 2 3 a batch of cookies, how much flour
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"Alaina’s sugar cookie recipe calls for 2 1/4

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Suppose a random sample of 50 college students are asked to measure the length of their right foot in centimeters. A 95% confide
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Answer:

A  99% confidence interval  will be wider than a 95% confidence interval

Step-by-step explanation:

From the question we are told that

  The  95% confidence interval for for the mean foot length for students at the college is found to be 21.709 to 25.091 cm

Generally the width of a confidence interval is dependent on the margin of error.

Generally the margin of error is mathematically represented as  

     E =  Z_{\frac{\alpha }{2} } * \sqrt{\frac{\^ p (1- \^ p)}{n} }

From the above equation we see that

          E \ \  \alpha \ \   Z_{\frac{\alpha }{2} }

Here  Z_{\frac{\alpha }{2} }  is the critical value of the half of the level of significance and this value  increase as the confidence level increase

Now if a  99% confidence level is  used , it then means that the value of  

 Z_{\frac{\alpha }{2} }  will increase, this in turn will increase  the margin of error and in turn this will increase the width of the confidence interval

Hence a 99% confidence interval  will be wider than a 95% confidence interval

5 0
3 years ago
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