The dimension of the null space of A is R^4 because (select all correct answers -- there may be more than one correct answer): A. The basis we found for the null space of A has three vectors. B. rref(A) is the identity matrix. C. rref(A) has three free variable columns. D. Three of the four columns in rref(A) do not have a pivot. E. rref(A) has one free variable column. F. Two of the four columns in rref(A) have pivots. G. rref(A) has a pivot in every ro

y do u put "subscirbe to ence" on a app for ppl who need with their work?

welll its a very hard question but ill

step-by-step explanation:

first you take the 6 dollars and add 10 to it then add the 50 to that then multiply by 8 with xy and your answer will be

hope this

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation: