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barxatty [35]
3 years ago
12

X / 3 - (x+5) / 5 = 7

Mathematics
1 answer:
Nastasia [14]3 years ago
7 0

Answer:

x= 60

Explanation:

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A similar follow-up study is done on a sample of 25 meat-lovers who never eat vegetables, again randomly selected from the same
Alona [7]

Answer:

The lower limit is  75.04

The upper  limit is  78.96

Step-by-step explanation:

From the question we are told that

   The sample size is  n = 25

   The sample mean is  \=  x  =  77

    The standard deviation is  \sigma  =  5

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

        \alpha =  (100  - 95)\%

         \alpha = 0.05

The critical value for  \frac{\alpha }{2} obtained from the normal distribution table is  

     Z_{\frac{\alpha }{2} } =  1.96

Generally the margin of error is mathematically represented as

       E =  Z_{\frac{\alpha }{2} } *  \frac{\sigma }{\sqrt{n} }

=>   E =  1.96*  \frac{5 }{\sqrt{25} }

=>    E = 1.96

The 95% confidence interval is mathematically represented as

        \= x  -E <  \mu <  \= x  +E

=>   77 -  1.96  <  \mu < 77 +  1.96

=>   75.04 <  \mu < 78.96

   

7 0
3 years ago
HELP !!!!! Let f(x) = 2x, g(x) = 2x2 – x, and h(x) = 3x. Lola finds the composition [f o g o h](x) as shown below. What error di
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I hope this helps you

5 0
3 years ago
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Which of the following shows the polynomial below written in descending order?
Juli2301 [7.4K]

Answer:

A

Step-by-step explanation:

  • The values must decrease
  • x∧12≥3x∧7≥4x³≥9x
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Kelvin saves $60 a day. Al saves $90 a day. How many times Kelvin's savings are Al's savings?
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How many times Kevin's savings are al's savings is 30 more
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