7×4=28
now subtract:
50-28=22
there are 22 marbles left in the can
hope this helped
Answer:
C. True; by the Invertible Matrix Theorem if the equation Ax=0 has only the trivial solution, then the matrix is invertible. Thus, A must also be row equivalent to the n x n identity matrix.
Step-by-step explanation:
The Invertible matrix Theorem is a Theorem which gives a list of equivalent conditions for an n X n matrix to have an inverse. For the sake of this question, we would look at only the conditions needed to answer the question.
- There is an n×n matrix C such that CA=
. - There is an n×n matrix D such that AD=
. - The equation Ax=0 has only the trivial solution x=0.
- A is row-equivalent to the n×n identity matrix
. - For each column vector b in
, the equation Ax=b has a unique solution. - The columns of A span
.
Therefore the statement:
If there is an n X n matrix D such that AD=I, then there is also an n X n matrix C such that CA = I is true by the conditions for invertibility of matrix:
- The equation Ax=0 has only the trivial solution x=0.
- A is row-equivalent to the n×n identity matrix
.
The correct option is C.
Is that .9? or was that period mark accidental?
Answer:
g(x)=e^x-1 - 3
(Answer Choice C.)
Step-by-step explanation:
Answer:
K-KPOP
BTS=JUNGKOOK JIMIN JIN SUGA V TEHYUNG RM J-HOPE
BLACK PINK=LISA ROSE KIM JENNI KIM JI-SOO
Step-by-step explanation:
K-KPOP YANG DISUKI SELURUH DUNIA