Complete the equation. x- 7 arctan arccos %3D 7. 7 < x < 14

Select one: a) 1.367 b) 1.1265 c) 1.0614 d) 1.403

2.Find the number of 6-letter words that use letters from {A,B,C,D,E}   in which no 5 consecutive letters are all the same. (Hint. First count the words that you don'twant to include.)

14! / 8!6!

in a rugby match, a tie at the end of two overtime. Leads to a shoot out with five cakes taken by each team from the center of the 22 m line. Each kid must be taken by a different player. How many ways can five players be selected from the 15 eligible players for the five selected players how many ways can they be designated as first, second, third, fourth, and fifth? 5 players can be selected from the 15 eligible players in ___ different ways. Out of those 5 players that are selected, they can be designated at first, second, third, fourth, and fifth in ____ different ways

Can you find the second subpart to this wue

2)I have a bag containing 40 blue marbles and 60 red marbles. I choose 10 marbles (without replacement) at random. Let X be the number of blue marbles and y be the number of red marbles. Find the joint PMF of X and Y.