Choose the statement that is not always true. a.opposite angles are congruent b. opposite sides are congruent c. the diagonals bisect each other d. the diagonals are perpendicular

Which expression is equivalent to 5r6141 2r+st6

Sketch the vector field vector f( vector r ) = 8vector r in the xy-plane. select all that apply. the length of each vector is 8. the lengths of the vectors decrease as you move away from the origin. all the vectors point away from the origin. all the vectors point in the same direction. all the vectors point towards the origin. the lengths of the vectors increase as you move away from the origin.

How are algebraic expressions evaluated using substitution?