ก n Which property is shown in the matrix addition below?
0 -5.5
0
5.5
0
0
6
19.4 | + -6 -19.4
0
0
0
0
0 0
associative property
O identity property
inverse property
commutative property

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Arestaurant gives out a scratch-off card to every customer. the probability that a customer will win a prize from a scratch-off card is 25%. design and conduct a simulation using random numbers to find the experimental probability that a customer will need more than 3 cards in order to win a prize. justify the model for your simulation, and conduct at least 10 trials.

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left