Tuesday
July 29, 2014

Homework Help: Algebra Multiple Choice help!!

Posted by Kris on Thursday, March 28, 2013 at 5:35pm.

I need help with these! I got B for 1. C for 2. and D for 3. Thanks for the help!

1.) Find the values of a, b, and c that will make the statement true.
[5 a -2] [5 102]
[3 4 b] = [-3 -4 3]
[2c 5 9] [-2 5 9]
a.) 8R1-R2--> =R2
b.) -8R1-R2 -> =R2
c.) 8R1 +R2 -> =R2
d.) 8R1-R2 -> =R2

2.) Solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give the solution in terms of a parameter.
-x+y+z=0
3x+2y+5z=18
15x+10y+25z=89
A.) (3,2,1)
B.) (3,2,0)
C.) Coincident dependence; {(x,y,z) |-x+y-z=0
D.) No solution, inconsistent

3.) Solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give the solution in terms of a parameter.

X+y-z=3
x-y-2z=6
2x-y+z=3

A.) (0,0,-4)
B.) (0,0,-3)
C.) Coincident dependence; {(x,y,z) | -x+y-z=3
D.) No solution, inconsistent

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

algebra - (38) please help me figure this out. The multiple choice answers did ...
Algebra - Complete the table for each function. 1. f(x) = √x The x values ...
algebra - I need to find the inverse of this function f(x)=9x+7 please show ...
Math - a 10 question multiple choice test has 4 possible answer for each ...
Algebra Multiple Choice - Hello, This is the last of questions I have for my ...
Math - What is the probability of rolling a number cube and getting an even ...
Math check 3 - f(x) = 1/(x+7)+15/(x-8). Find all a for which f(a)=f(a+15). I ...
algebra - I need to find the approx. value for x that are solutions to f(x)=0 ...
Integrating quadratics? - find the antiderivative of f(x) = x^3(x-2)^2 I ...
calc - how do i find the derivative of........ (sinx) ^2-(cosx) ^2 i put it into...

Search
Members