You are about to take a multiple choice test that contains questions of type A worth 7 points, and type B worth 4 points. You must answer at least 2 of type A and 3 of type B. In total, you can answer no more than 10 questions. Assuming you will get all answers right, formulate an optimization problem to determine the number of each type of question to answer. Define the following decision variables:

Asquare picture with sides of 32 inches is to be mounted on a square mat with sides of 52 inches. find the area of the mat that will remain uncovered by the picture.

1. why is a frequency distribution useful? it allows researchers to see the "shape" of the data. it tells researchers how often the mean occurs in a set of data. it can visually identify the mean. it ignores outliers. 2. the is defined by its mean and standard deviation alone. normal distribution frequency distribution median distribution marginal distribution 3. approximately % of the data in a given sample falls within three standard deviations of the mean if it is normally distributed. 95 68 34 99 4. a data set is said to be if the mean of the data is greater than the median of the data. normally distributed frequency distributed right-skewed left-skewed

Marco states that 7.696696669…… is a rational number because it is a repeating decimal. is he correct? justify your answer.