Which statements are true? Check all that apply.

mArc C B = 120°
mArc C B = 60°
m∠COB = 2(m∠CAB)
m∠COB = 120°
m∠COB = One-half (m∠CAB)

What is sin 7x/4 ? i need on this urgent trig

The american academy of pediatrics wants to conduct a survey of recently graduated family practitioners to assess why they did not choose pediatrics for their specialization. provide a definition of the population, suggest a sampling frame, and indicate the appropriate sampling unit.

Multiply and simplify. 2x^2 y^3 z^2 · 4xy^4 x^2 i will mark you brainliest if right. show how you got the answer, !