The table below shows the number of correct answers that students gave on a recent 5-question quiz. If the mean number of correct answers is 4, determine the value of k.
Number Correct 1 34 5
Frequency
5 | 12

The triangles are similar. what is the value of x? show your work.

Angle mno is s rotated 180 degrees counterclockwise about the origin to form angle m’n’o’. which statement shows the measure of angle m’n’o’?

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.