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Aut 2007, Nichifor, Midterm 2, v1
1. (11 pts=2+4+5) Two cars, an Audi and a Bug, start at the same place and drive in the same direction on a
straight road. The distance covered by the Audi in the first t minutes is given by:
= 0.75 (in miles)
The averag
version 1
1. (15 points) The graph below is of the total amount of the water O(t) which was pumped out of a reservoir from
noon until t hours later (during a 12 hour interval, starting at noon).
gallons
5000
(b)
O(t)
4500
(c)
4000
(a)
3500
3000
2500
2000
Math 111
Solutions for Group Activity: Sequences and Population Growth
1. A bacteria colony doubles in size every hour. At noon, there are 1000 bacteria. Let B (t) be the number
of bacteria in the colony t hours after noon.
(a) How many bacteria are in th
Math 111
Solutions for Group Activity: A Fair Deal
Situation: XYZ Corporation issues promissory notes in $1000 denominations under the following terms:
purchase a $1000 note now and, two years from now, they will give the owner of the note $2000. You
purc
Math 111
Solutions for Group Activity: Percent and Proportionate Change
Suppose you are awarded a 5% raise in your salary. We call 5% the percentage change (or just percent
change) in your salary and that percentage expressed as a decimal, 0.05, the propo
Name:
Section:
Math 111
Group Activity: The Method of Linear Programming
The Grass is Greener lawn care company produces two dierent lawn fertilizers: Regular and Deluxe. The
prot on each bag of Regular is $0.75, while the prot on each bag of Deluxe is $1
Name:
Section:
Math 111
Solutions for Group Activity: Maximizing Prot Three Ways
You work for Tasty Tours, organizing tours of a local winery. In order to make your tour competitive with
other companies, you oer price breaks for larger groups. The followi
Math 111
Solutions for Group Activity: Two Vats of Water
30
28
Water is owing in and out of two vats, a red vat and a
green vat. The graphs to the right show the amounts
of water in the two vats over a several-hour period.
We also have a gauge which measu