Students are playing a game similar to “Shut the Box”. There are cards numbered 3 through 18. Each player takes turns choosing whether to roll two or three dice and if the sum of their dice matches a card, they get a point and that numbered card is removed. If the above numbers are face up, how many dice should Player B roll to increase his chances to win and by what percentage is this better than the other number of dice?

its kind of blurry. can you put a clearer pic?

step-by-step explanation:

b) k’(6, 4); l’(3, 3)

step-by-step explanation:

a 270° clockwise rotation maps every point (x, y) to (y, -x). (it negates the x-coordinate and then switches it and the y-coordinate.)

this means the endpoints of the side congruent to kl, k' and l', would be mapped as:

k'(-4, 6)→(6, 4)

l'(-3, 3)→(3, 3)

the answer is d

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