Question

Let A = {2,3,4,7,9,10} and B = {3,6,9,12}. If a number is chosen at random from set A, what is the probability that the number is in A∩B?

Answer 1

A∩B is the set containing the numbers that appear in A and B. So, A∩B = {3,9}. There are 6 numbers in set A, so the probability that a number from set A is in A∩B is 2/6

Answer 2

u there?

Answer 3

???

Answer 4

Yes?

Answer 5

The coordinates of the vertices of triangle ABC are A(4,5), B(2,1), and C(6,3). If P is a point such that APBC is a parallelogram, what are the coordinates of P?

Answer 6

One moment...

Answer 7

The vector between B and C is <4,2>. So the vector between A and P should be the opposite vector, <-4,-2>. So basically P will be at (4-4,5-2). In other words, P is (0,3)