Answer: Matrix B is non- invertible.
Step-by-step explanation:
A matrix is said to be be singular is its determinant is zero,
We know that if a matrix is singular then it is not invertible. (1)
Or if a matrix is invertible then it should be non-singular matrix. (2)
Given : A and B are n x n matrices from which A is invertible.
Then A must be non-singular matrix. ( from 2 )
If AB is singular.
Then either A is singular or B is singular but A is a non-singular matrix.
Then , matrix B should be a singular matrix. ( from 2 )
So Matrix B is non- invertible. ( from 1 )
50 x 0.4 = $20
$50 - $20 = $30
Ratcliff
$40 x 0.3 = $12
$40 -$12 = $28
Although, Clothes R Us discount is larger, Ratcliff has the better deal because the sneaker cost $28 vs clothes r us $30.
Answer:
A. ΔADC ~ ΔRTS because ∠A ≅ ∠R, ∠C ≅ ∠S, and ∠D ≅ ∠T
Step-by-step explanation:
The alternative itself answers the question. Just remember that two triangles are similar if the only difference is size.
∠DCA = 32.3º and ∠RTS = 51.2º
Answer:
the answer to this question is A
Step-by-step explanation:
l*w*h
