Answer:
39.4°
Step-by-step explanation:
The tangent of the angle is the ratio of its opposite side (XY) to its adjacent side (YZ).
tan(Z) = XY/YZ = 12.4/15.1
∠Z = arctan(12.4/15.1)
∠Z ≈ 39.4°
1. 60/1/5 =12 (purple)
2. The theoretical is 1/5 and in the experimental probability the spinner was spun 60 times and 1/5 of those were purple making the theoretical and experimental probability of purple the same
{y|1 > y}, (-∞, 1); you did not specifically mention what notation you needed, so I wrote both [Internal Notation and Set Notation].