Which are perfect square trinomials? Select two options. x2-9
x2-100
x2 - 4x + 4
x2 + 10x + 25
x2 + 15x + 36

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

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.