The former needs to repair the pig pen. The number on the picture above is the amount of lumber in inches he needs to buy. If the farmer buys 13 feet of lumber, will he have enough lumber to fix he
pig pen?

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

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.

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*