Hộp I có 10 sản phẩm tốt, 2 hỏng, hộp II có 20 sản phẩm tốt, 4 hỏng. Từ hộp I lấy ra 1 sản phẩm bỏ qua hộp II, sau đó từ hộp II lấy ra 1 sản phẩm. a) Tính xác xuất từ hộp II là hỏng
b) Nếu sản phẩm từ hộp II là hỏng, tính xác xuất sản phẩm từ hộp I là tốt

The length of a rectangular piece of land is 92 yards more than three times its width. the perimeter is 760 yards. find its dimensions.

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.

Hurry which expression is equivalent to 3√x^5y?