The image is the set of all points in $\mathbb{R}^4$ that you get by multiplying this matrix to points in $\mathbb{R}^5$, you can find these by checking the matrix on the standard basis. The kernel is the set of all points in $\mathbb{R}^5$ such that, multiplying this matrix with them gives the zero vector.
These seven companies alone have produced almost one-fifth (18.7 percent) of all industrial carbon released into the atmosphere since the dawn of the Industrial Revolution.
In 1997, 56 percent of raw steel production was produced in the BOF and 44 percent produced in the EAF.4 The large integrated steel mills use the BOF to produce large amounts of carbon steels. Most of the minimills use the EAF to produce alloy and specialty steels as well as carbon steels.n 1997, 56 percent of raw steel production was produced in the BOF and 44 percent produced in the EAF.4 The large integrated steel mills use the BOF to produce large amounts of carbon steels. Most of the minimills use the EAF to produce alloy and specialty steels as well as carbon steels.