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.

Solve for x i'll try to attach the files bc it's not letting me for some reason

Which mathematical statements are true? 1) if 3 is an odd number, then 3 times 3 is an even number. 2) if 6 is less than 7, then 4 is greater than 7. 3) six is divisible by 3, and 10 is a multiple of 2. 4) the average of the data is greater than the largest value in the data, or it’s less than the largest value in the data. 5) the slope of a linear graph is its rate of change, and the graph’s y-intercept is the initial value. 6) if an equilateral triangle has equal angles, then all its angles will measure 45°.

Which statement about the relative areas of δabc and δxyz is true? the area of δabc > the area of δxyz the area of δabc < the area of δxyz the area of δabc = the area of δxyz more information is needed to compare.