W = { (x, y) | y = x² } có phải là không gian véctơ con của R² không

He concluded that a heavier object dropped from the same height as a lighter object will land

Someone me what is the area of this figure? 18m 18m 8m 16m

Mrs. avila is buying a wallpaper border to go on all of her kitchen walls. she wants to buy 5 extra feet of wallpaper border than she needs to be sure she has enough. she buys 55.5 feet of the border. the store owner selling the border uses the width of mrs. avila's kitchen to determine that the length of her kitchen must be 14.5 feet.