Don breaks a 4×7 array into a 2×7 and another array. what is the fact for don's second array?

Pj is decorating pupcakes for rocky's birthday party. her color scheme is black, purple, and green. she will use this spinner to determine the color of sprinkles on each pupcake. which model shows the probability of randomly landing on each color?

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

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