The standard form of the equation of a parabola is y = x2 + 4x + 11. what is the vertex form of the equation? a. y = (x + 2)2 + 7 b. y = (x - 2)2 + 18 c. y = (x + 2)(x - 2) + 7 d. y = (x - 2)2 + 12

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

What is the approximate value of  x  in the equation below.–3.396–0.7080.3040.955

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?