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bixtya [17]
3 years ago
6

29^2-22^2 whole divided by 51

Mathematics
1 answer:
klio [65]3 years ago
5 0
The answer is 7. You need to use BIDMAS - Brackets Indices Division Multiplication Addition Subtraction
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Charles asked his teammates how many hours they practiced swimming during the week. He recorded his data in the table below and
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Answer:

The answer is C.

Step-by-step explanation:

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24 - (6)(-3) equals to what
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42

Step-by-step explanation:

6*(-3) = (-18)

24-(-18) = 42

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I need help with these questions asap
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Express the confidence interval 0.555 less than 0.777 in the form Modifying above p with caret plus or minus Upper E.
Elina [12.6K]

Complete Question

Express the confidence interval 0.555 less than p less than  0.777 in the form Modifying above p with caret plus or minus Upper E.

Answer:

The modified representation is \r p \pm  E  = 0.666 \pm  0.111

Step-by-step explanation:

From the question we are told that

    The  confidence interval interval is  0.555 <  p <  0.777

Now looking at the values that make up  the up confidence interval we see that this is a symmetric  confidence interval(This because the interval covers 95%  of the area under the normal curve which mean that the probability of a value falling outside the interval is 0.05 which is divided into two , the first half on the left -tail and the second half on the right tail  as shown on the figure in the first uploaded image(reference - Yale University ) ) which means

     Now  since the confidence interval is  symmetric , we can obtain the sample proportion as follows

             \r p  =  \frac{0.555 + 0.777}{2}

            \r p  =0.666

Generally the margin of error is mathematically represented as

            E  =  \frac{1}{2}  *  K

Where  K is the length of the confidence interval which iis mathematically represented as

           K  =  0.777 -0.555

         K  = 0.222

Hence  

          ME  =  \frac{1}{2}  *  0.222

           ME  =  0.111

So the confidence interval can now be represented as

        \r p \pm  E  = 0.666 \pm  0.111

     

3 0
3 years ago
The value of n in the inequality 3n + 1 &lt; 7 is
aliya0001 [1]

3n + 1 < 7

Solve:

3n < 6

n < 2

The answer is C.

8 0
3 years ago
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