(I)
(II)
Get alone in equation (II)
Insert new equation (II) in equation (I)
Insert in equation (II)
Answer:
B.The matrix is invertible because the determinant is defined.
Step-by-step explanation:
<u>Definition:</u> A matrix is invertible if the determinant is not equal to zero.
Given the matrix:
The determinant of the matrix:
Since the determinant, , the matrix is invertible because the determinant is defined.
Answer:
Step-by-step explanation:
you can use the pythagorean theorem. form a triangle, the distance on one side should be 6, the other 1.
Answer:2/15
Step-by-step explanation: 10/3 - 12/5 = lcm of 3 and 5 = 15
= 10/15 - 12/15
= 2/15