Determine if the statement is true or false: a. If two matrices are equivalent, then one can be transformed into the other with a sequence of elementary row operations.

b. Different sequences of row operations can lead to different echelon forms for the same matrix.

c. Different sequences of row operations can lead to different reduced echelon forms for the same matrix.

d. If a linear system has four equations and seven variables, then it must have infinitely many solutions.

a net is a diagram that shows a “flattened” view of a solid. in a net, each face and base is shown with all of its dimensions. a net can also serve as a pattern to build a three-dimensional solid.

a pyramid is a three-dimensional object with a base that is a polygon and triangular faces that meet at one vertex.

" the net of a triangular pyramid consists of four triangles. the base here we are given of the pyramid is a equilateral   triangle, and the lateral faces are also triangles "

correct answers below:

maybe i can

a and c

step-by-step explanation: