Holistic Numerical Methods

Transforming Numerical Methods Education for the STEM Undergraduate

 

MOOC | MOBILE | VIDEOS | BLOG | YOUTUBE | TWITTER | COMMENTS | ANALYTICS | ABOUT | CONTACT | COURSE WEBSITES | BOOKS | MATH FOR COLLEGE


MULTIPLE CHOICE TEST

(All Tests)

BACKGROUND

(More on Simultaneous Linear Equations)

SIMULTANEOUS LINEAR EQUATIONS

(More on Simultaneous Linear Equations)

Pick the most appropriate answer.


Q1. Given [A] = then [A] is  a (an) ______________  matrix.

 

diagonal

identity

lower triangular

upper triangular


Q2. A square matrix [A] is lower triangular if


Q3. Given  then if [C] = [A] [B], then c31= _____________________

-58.2

-37.6

219.4

259.4


Q4. The following system of equations has ____________ solution(s).

        x + y = 2

        6x+6y =12

infinite

no

two

unique


Q5 . Consider there are only two computer companies in a country.  The companies are named Dude and Imac.  Each year, Dude keeps 1/5th of its customers, while the rest switch to Imac.  Each year, Imac keeps 1/3rd of its customers, while the rest switch to Dude.  If in 2003, Dude had 1/6th of the market and Imac had 5/6th of the market, what will be the share of Dude computers when the market becomes stable?

37/90

5/11

6/11

53/90


Q6. Three kids - Jim, Corey and David receive an inheritance of $2,253,453.  The money is put in three trusts but is not divided equally to begin with.  Corey's trust is three times that of David's because Corey made an A in Dr. Kaw’s class.  Each trust is put in an interest generating investment.  The three trusts of Jim, Corey and David pays an interest of 6%, 8%, 11%, respectively.  The total interest of all the three trusts combined at the end of the first year is $190,740.57.  The equations to find the trust money of Jim (J), Corey (C) and David (D) in a matrix form is 

 

Complete Solution

 

Multiple choice questions on other topics


AUDIENCE |  AWARDS  |  PEOPLE  |  TRACKS  |  DISSEMINATION  |  PUBLICATIONS


Copyrights: University of South Florida, 4202 E Fowler Ave, Tampa, FL 33620-5350. All Rights Reserved. Questions, suggestions or comments, contact kaw@eng.usf.edu  This material is based upon work supported by the National Science Foundation under Grant# Creative Commons License0126793, 0341468, 0717624,  0836981, 0836916, 0836805, 1322586.  Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.  Other sponsors include Maple, MathCAD, USF, FAMU and MSOE.  Based on a work at http://mathforcollege.com/nm.  Holistic Numerical Methods licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.

 

ANALYTICS