For the following exercises, solve the equation for x , if there is a solution. Than graph both sides of the equation, and observe the point of intersection (if it exists) to verify the solution. 3 log 2 ( 10 ) − log ( x − 9 ) = log ( 44 )
For the following exercises, solve the equation for x , if there is a solution. Than graph both sides of the equation, and observe the point of intersection (if it exists) to verify the solution. 3 log 2 ( 10 ) − log ( x − 9 ) = log ( 44 )
For the following exercises, solve the equation for x , if there is a solution. Than graph both sides of the equation, and observe the point of intersection (if it exists) to verify the solution.
Let matrix A have order (dimension) 2x4 and let matrix B have order (dimension) 4x4.
What results when you compute A+B?
The resulting matrix will have dimensions of 2x4.
○ The resulting matrix will be a single number (scalar).
The resulting matrix will have dimensions of 4x4.
A+B is undefined since matrix A and B do not have the same dimensions.
If
-1
"[a446]-[254]
4b
=
-1
, find the values of a and b.
○ There is no solution for a and b.
○ There are infinite solutions for a and b.
O a=3, b=3
O a=1, b=2
O a=2, b=1
O a=2, b=2
A student puts a 3x3 system of linear equations is into an augmented matrix. The student then correctly
puts the augmented matrix into row echelon form (REF), which yields the following resultant matrix:
-2
3
-0.5
10
0 0
0
-2
0 1 -4
Which of the following conclusions is mathematically supported by the work shown about system of linear
equations?
The 3x3 system of linear equations has no solution.
○ The 3x3 system of linear equations has infinite solutions.
The 3x3 system of linear equations has one unique solution.
A Problem Solving Approach To Mathematics For Elementary School Teachers (13th Edition)
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