Suppose x is any positive number. Circle 1: center (5,4) and a radius of 5x Circle 2: center (5,4) and a radius of 2x Why is circle 1 similar to circle 2? Circle 1 is a dilation of a circle with a scale factor of 2.5. Circle 1 is congruent to circle 2. Circle 1 is a dilation of circle 2 with a scale factor of 0.4. Circle 1 and circle 2 have the same radius.​

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.