When jonas does his math homework, he spends an average of 3 minutes on each problem. last night he spent 1.8 hours on his non-math homework, plus he completed 7 math problems. approximately how much time did jonas spend in total on all of his homework last night?

Which math sentence can be used to determine if the triangle is a right triangle?

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?

Find the area of the surface obtained by rotating the curve z=4e^2y from y = 0 to y =1 about the y-axis. the area is square units