2. These are the 3 types of central angle problems. Solve for X, S, and E, and prepare to show your team how to solve them Geogebra https://www. geogebra org/m/s 435tzw c с 86 98 1B E G A​

Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b

Twenty-five percent of the customers entering a grocery store between 5 p.m. and 7 p.m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.

Identify the type of observational study described. a statistical analyst obtains data about ankle injuries by examining a hospital's records from the past 3 years. cross-sectional retrospective prospective