An iir filter is described by the following system function 2-2-1 1-0.75z-1 1 02-122 1-0.8z-10.64z2 1+2z-1+2-2 1 0.81z-2 h(z) 2 determine and draw the following structures. 1. transposed direct form i 2. normal direct form ii 3. cascade form containing transposed 2nd-order direct-form-ii sections 4. parallel form containing normal 2nd-order direct-form-ii sections . lattice-ladder form

answer and explanation;

composition refers to both the types of minerals within a rock and the overall chemical makeup of the rock while texture refers to the size and arrangement of the minerals or grains that make up a rock. both composition and texture can be used to classify rocks, such as igneous rocks. texture describes how the rock became solid or crystallized from liquid, melted rock. composition of a rock describes the minerals that make up a particular rock.