Decide if the following problem is an example of a permutation or a combination. state your rationale. for a study, 4 people are chosen at random from a group of 10 people. how many ways can this be done? a. combination - set of objects arranged in a certain order c. combination - an unordered arrangement of objects b. permutation - set of objects arranged in a certain order d. permutation - an unordered arrangement of objects

What is the approximate total length of iron edging needed to create the square frame and the two diagonals?

Design a number line containing five (5) points2.benin, one of the smallest countries in africa, has a total area of 43,475 square miles. the population of the country was recently estimated at 10,160,555. about 3,657,790 people live in rural areas. the country has only about 870 miles of surfaced roads. a. round off the total population to the nearest hundred thousand people. b. round off benin’s area in square miles to the nearest thousand. c. round off the number of miles of surfaced roads to the nearest ten. d. round off the number of people who live in rural areas to the nearest million.

Let r = 3. what is the value of r + 58?