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Novay_Z [31]
1 year ago
8

A circle has a diameter of

Mathematics
1 answer:
blsea [12.9K]1 year ago
5 0

Step-by-step explanation:

to calculate circumference:

2\pi \: r

if the diameter is 16 then the radius would be 8.

2\pi \:r \\  = 2\pi(8) \\  = 16\pi \\  =Rationalize(50.26548245744) \\circumference  = 50.27

to calculate the area of a circle:

\pi  {r}^{2}   \\  = \pi( {8})^{2}  \\ = Rationalize(201.06192982975) \\ area = 201.06 \:  ^{2}

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Is this equation infinity many solution 5c+9=5c-12
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Ilia_Sergeevich [38]

Answer:

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Step-by-step explanation:

since the correlation between the FFQ and DR is 0.89

      x                            y               xy                    x^{2}                            y^{2}

    8.26                      1.68          13.8768          68. 2276          2.8224

     0.83                      0               0                    06889                  0

     20.13                   15.1           303.963          405.2169          228.01

      11.16                   7.49          83.5884          124.5456           56.1001

      7.18                    12.84         92.1912            51.5524            164.8656

       1.76                       0                0                   3.0976                 0

     22.46                  25.06        567.8596        513.4756           628.0036

-----------------------------------------------------------------------------------------------------------

       ∑x_{i} =                 ∑y_{i} =              ∑x_{i} y_{i}=               ∑x_{i}^{2} y_{i}^{2}=             ∑y_{i} ^{2}=      

      71.98                   62.17         1061.479            1166.8046      1079.8017  

-------------------------------------------------------------------------------------------------------------

Correlation Coefficient or Pearson Correlation is given by:  

the rest calculation is in the attached image

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Answer:

15 friends

Step-by-step explanation:

37 - 7=30 so then you divide 30 by 2 which equals 15 so there is your answer.

7 0
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