Thirteen cards numbered 1,...,13 are shuffled and delt one at a time. Say a match occurs on deal K if the kth car revealed is card number k. Let N be the total number of matches that occur on deal K if kth card reveleaded is card number k. Let N be the total number of matches that occur in the thirteen cards. Determine E[N] HINT: Write N = 1A1 + 1A2 + ... + 1A13 where Ak is the event that a match occurs on deal k.

Which of the following describes the graph of y--4x-36 compared to the parent square root function? stretched by a factor of 2, reflected over the x-axis, and translated 9 units right stretched by a factor of 2, reflected over the x-axis, and translated 9 units left stretched by a factor of 2, reflected over the y-axis, and translated 9 units right stretched by a factor of 2, reflected over the y-axis, and translated 9 units left save and exit next submit

Is the point (0, 8) on the x-axis or y-axis? how do you know?

Arectangular courtyard is 12 feet long and 8 feet wide. a tile is 2 feet long and 2 feet wide. how many tiles are needed to cover the courtyard?