You look behind the stove and discover a slice of bread that you misplaced several days ago. Needless to say, it is covered with mold. Since the mold started growing, the area it has covered has doubled each day. By the end of the 8th day, the entire surface of the bread is covered. Write an equation in any form you like to describe the amount of mold on the bread n days after the bread was lost.

What is the slope of the line shown below?

What can each term of the equation be multiplied by to eliminate the fractions before solving? x – + 2x = + x 2 6 10 12

Aconcession manager at yankee stadium wants to know how temperature affects beer sales. she took a sample of 10 games and recorded the number of beers sold and the temperature in the middle of the game. temperature 80 68 78 79 87 74 86 92 77 84 number of beers 20533 1439 13829 21286 30985 17187 30240 87596 9610 28742 a. draw a scatter plot of the data. b. the manager estimates the regression equation to be: numberofbeers = −100, 678 + 1, 513 ∗ temperature draw this on your scatter plot. c. for one of the estimated points, indicate the residual with ei . d. for that same point, indicate what part of the variation is explained by the model with ˆyi − y¯.