A group of 10 people is choosing a chairperson and vice chairperson. They put all 10 people’s name into a hat. The first name drawn becomes chair. The second name drawn becomes vice-chair. How many possible combinations of chair and vice-chair are there?

Suppose you want just guess at the answers in a 5 question multiple-choice test. each question has 3 responses and only one is correct. what is the probability of getting two questions right just guessing? 20 points 0.3275 0.2753 0.7532 none of the above

What is the absolute value of the complex number -4-sqrt2i

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?