38. You must leave for campus in half an hour, or you will be late for class. Unfortunately, you are snowed in. You can
shovel the driveway in 45 minutes and your brother claims
he can do it in 36 minutes. If you shovel together, how long
will it take to clear the driveway? Will this give you enough
time before you have to leave?

Which of the following transformations will always produce a congruent figure?

The letters g e o r g i a are placed in a bag . if you picked a card and knew it was a vowel , what is the probability that it is an a ?

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¯.