Consider vector u. Find the angle θ ∈ [0, 2π) that vector u makes with the positive direction of the x-axis, in a counter-clockwise direction.

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

Aline has a slope of negative 1/4 the past two points -5/4 and 1 what is the equation of the line

70 points ! pls 2. given the following two sets of data what is the union of the two sets and what is the intersection of the two sets. set a = {1, 2, 3, 4, 5, 6, 7, 8, 9} set b = {2, 4, 6, 8, 10, 12, 14} 3. given a regular deck of cards. describe a way of pulling cards that would create a dependent event and then one that would create an independent event. 4. what is the probability of drawing a red card and then drawing a spade without replacing the card that was drawn first?