Patterns are made using straight lines and arcs. Pattern A (one row)
Pattern B (two rows)

More rows are added to Pattern B so that
number of straight lines : number of arcs = 7:6

How many rows are added?

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.

Which ordered pair (c,d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?