musicalmel

07.06.2021 • 

Mathematics

Four lines are drawn on a coordinate plane to form trapezoid WXYZ. A coordinate grid with 4 lines. Line X W is drawn with point W at (negative 4, 1) and passes through (0, 2) with and (3, 3). Line Y X is drawn with point Y at (3, 0) and passes through (0, 3). Line Z W is drawn with point Z at (0, negative 3) and point W at (negative 4, 1). LIne Z Y is drawn with point Y at (3, 0) and point Z at (0, negative 3).

Which statements are true about the lines? Select three options

Ответ:

bvallinab

31.03.2022

Mathematics

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On your first pick, the chance of picking a white sock is  711  (there are  11  socks in total). On the next selection, the chance of picking white is  610  ( 1  white sock has been removed). So the chance of  2  whites is  711×610  which is  42110

Similarly, the chance of picking two blacks is  411×310  which is  12/110

The chance of picking two equal socks is the sum of these probabilities, that is:  54/110

This simplifies to  27/55

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