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EleoNora [17]
3 years ago
15

Line WX is tangent to circle T at point X. Line WT intersects the circle at points P and Q. The radius of circle T is 12 units a

nd WP = 8 units. What is WX?​

Mathematics
1 answer:
Anastasy [175]3 years ago
5 0

PQ=2PT=2 \times 12=24\Rightarrow QW=PQ+PW=24+8=32 \\ \hat{W} \:  is  \: shared, \widehat{PXW}=\widehat{WQX}\Rightarrow \bigtriangleup PWX\cong \bigtriangleup XWQ \\ \Rightarrow  \frac{WX}{QW}   =  \frac{PW}{WX}  \\ \Rightarrow  {WX}^{2}  = PW.QW = 8 \times 24 = 192\Rightarrow WX =  \sqrt{192}  = 8 \sqrt{3}\: units

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For each employee hired, the are only two possible outcomes. Either it is a man, or it is a woman. The probability of a person hired being a man or a woman is independent of any other person. This means that we use the binomial probability distribution to solve this question.

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This means that n = 21

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This means that p = 0.5

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