Answer:
No
Step-by-step explanation:
If A were reversible, then such y coudnt not exist, because A⁻¹y would be a solution of the equation Ax=y. This means that A in not reversible, thus, there exist a non zero vector w in R³ such that A*w = 0. If x' were a solution of Ax =z, then x'' = x'+w is a different solution of the equation: Ax'' = A(x'+w) = Ax'+Aw = z+0 = z. This means that a vector z such that there exist a unique solution for the equation Ax=z cant exist.
Answer:
18 square units
Step-by-step explanation:
area = full square units + 1/2 x half- full square units
full square units = 12
half- full square units = 12
= 12 + (1/2 x 12)
=12 + 6
=18 square units
Answer:
<u>2,160 mm³</u>
Step-by-step explanation:
<u>Q5</u>
- V = 1/2 × lwh
- V = 1/2 × 24 × 10 × 18
- V = 12 x 10 x 18
- V = 216 x 10
- <u>V = </u><u>2,160 mm³</u>
Answer:
A. 0
Step-by-step explanation:
Nothing can be equal to itself if you subtract 9 from it.