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Exam 5 Review for Intermediate Algebra | MTH 140, Exams of Algebra

Saint Louis Community College - MeramecAlgebra

Material Type: Exam; Class: Intermediate Algebra; Subject: Mathematics; University: Saint Louis Community College-Meramec; Term: Unknown 1989;

Typology: Exams

Pre 2010

Uploaded on 08/08/2009

koofers-user-l1z
koofers-user-l1z 🇺🇸

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MTH: 140 INTERMEDIATE ALGEBRA NAME_________________________
Exam 5 Review
Please show all your work and place your final answers in the provided spaces.
Thank you and good luck.
1) Solve using the square root property:
2
15 48 0x
2) Solve:
2
3 7 5 0x x
a) By completing the square.
b) By using the quadratic formula.
1
pf3
pf4
pf5

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MTH: 140 INTERMEDIATE ALGEBRA NAME_________________________ Exam 5 Review Please show all your work and place your final answers in the provided spaces. Thank you and good luck.

  1. Solve using the square root property: (^15) x^2  48  0
  2. Solve: (^3) x^2  7 x  5  0 a) By completing the square. b) By using the quadratic formula.
  1. Solve using U-Substitution a) (^) x^4  29 x^2  100  0 b) (^) x  2 x  6  0
  1. The cost C in dollars of operating a certain concrete–cutting machine is related to the number of minutes n the machine is run by the function C n ( ) 2.2 n^2  66 n  655. For what number of minutes is the cost of running the machine a minimum? What is the minimum cost?
  2. To create the announcement shown below, a graphic artist must follow two design requirements. Please see example 10 page. 781.  A border of uniform width should surround the text.  Equal areas should be devoted to the text and the border. To meet the requirements, how wide should the border be? 4 + 2x 6 + 2x 4 x 6 x x x
  1. Solve by factoring. Please review section 5.7 for an extended review. Circle your final answer.

t^3  6 t^2  7 t  0 ^4 x^ ^9 ^  15 x^^2 ^7 x ^2 ^0

2

x 2 x  1  3 x  x  3   3 x  5  7

 8 x^2  10 x  3 4 ^ x^ ^3 ^ ^ x^^2 ^ x ^3 ^ ^0