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## Sample Document Text

A
September 26, 2005 MATH 113-TEST 1 Name: ______________ __
P2 - 2.3 Section:
Instructions:
Do all problems in the spaces provided. Mark your answers clearly and write them in simplified form. You must show all
appropriate work in order to receive credit for an answer. You may use graphing calculators, but show work algebraically
and find exact answers where indicated.
4x x
1. (a) Subtact and simplify:
--::-------- - ----
x
2
+2x-8 x-2
[6]
1
(b) If f (x) = X 3
27
Find: f(-) , writing your answer as an exact answer.
8
[5]
(c) Simplify, if possible, writing your answer with only positive exponents:
[6]
2. (a) A person throws a rock straight up in the air at 40 feet per second from a height of 5 feet. How long will it take the
rock to hit the ground? (Use the position equation S = - 16t
2
+ vot + So )
A
[6]
(b) How far from the ground is the rock after 2 seconds?
[4]
Page 1 of4
3. (a) The revenue for selling x units ofa product is R = 80x. The cost of p...

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