given the relative frequency table below which of the following is corresponding cumulative relative frequency table 3/0.4 4/0.1 5/0.3 6/0.2

Answer question above and explain each step : )

If a is a nonzero real number then the reciprocal of a is

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.