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alex41 [277]
3 years ago
14

CAN ANYONE PLEASE HELP ME OR ATLEAST TAKE A GUESS​

Mathematics
1 answer:
anzhelika [568]3 years ago
5 0

l \parallel k\Rightarrow x + 95 = 4x - 10\Leftrightarrow 3x = 105\Leftrightarrow x = 35

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Using the approximation 3.14 for pi​, what is the radius of a circle with circumference 69.1 ​m?
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Answer:

11.0

Step-by-step explanation:

Circumfrence = 2 x pi x r.

making radius, r the subject of relation, you.get 11.003184713

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With full explanation from the internet like before<br> 3x2-6x+5=0
Elodia [21]

Answer:

\sf x=1+i\sqrt{\dfrac{2}{3}}   \ \quad and  \quad \:x=1-i\sqrt{\dfrac{2}{3}}

Explanation:

<u>Given Expression</u>:

  • 3x² - 6x + 5 = 0

Use the Quadratic Formula:

\sf x = \dfrac{ -b \pm \sqrt{b^2 - 4ac}}{2a}  \  \ when   \ \  ax^2 + bx + c = 0

<u>insert coefficients</u>

\Longrightarrow \sf x = \dfrac{-\left(-6\right)\pm \sqrt{\left(-6\right)^2-4\cdot \:3\cdot \:5}}{2\cdot \:3}

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\Longrightarrow \sf x =1 \pm   i\dfrac{\sqrt{6} }{3}

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2 years ago
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Consider a circle whose size can vary. The circumference of the circle is always 2π times as large as its radius. Let r represen
ser-zykov [4K]

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A randomized controlled study was designed to test whether regular drinking of cranberry juice can prevent the recurrence of uri
Kamila [148]

Answer:

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The p-value for the test = 0.89

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Step-by-step explanation:

1. The Chi squared test is given as follows;

\chi ^{2} = \sum \dfrac{\left (Observed - Expected  \right )^{2}}{Expected  }

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The chi-squared statistic is given as follows;

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The degrees of freedom, df = 18 - 1 = 17 since the all of the expected count have a minimum value of 18

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The p-value for the test = 0.89  

2. The range of the p-value from the Chi squared table is given as follows;

0.75 < p-value < 0.90.

5 0
3 years ago
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