1. Kyle has a baseball game after school. He drives 6 miles due west from his home to school. After school, he drives 5 miles du
e north to the baseball field, as shown on the grid below What is the straight-line distance from the baseball field to Kyles home, to the nearest tenth of a mile? A. 3.3 miles B. 5.5 miles C. 7.4 miles D. 7.8 miles
So, to solve this, you need to use the Pythagorean theorem to find the distance from the baseball field to his home. You know two of the sides of the triangle formed, 6 and 5. The Pythagorean theorem is a² + b² = c². In this case, it would be 6² + 5² = c². If you solve this, you would find that c is 7.81024967591. Just round it to the nearest tenth like instructed. This would get you 7.8 as the answer.
You can determine if a number is rational if it can be represented as a terminating or repeated decimal, but if it can not, then the number is irrational.