From a set of 10 cards numbered 1 to 10, two cards are drawn at random without replacement. What is the probability that one is even and one is odd?

What is the smallest integer n such that n\sqrt{2} is greater than 20

What kinds of numbers make up the set of numbers called the real numbers? give examples when you explain a number type. there are a limited set of types of numbers, but an unlimited number of examples of these numbers.

At which value in the domain does f(x) =0?