In the circle below tangent PA and secant PBC have been drawn. if PB=4 and BC=12 then which of the following is the length of tangent PA?

Does the point (1, sqrt 7) lie on circle shown.

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.

Aline passes through the point (–7, 5) and has a slope of 1/2 which is another point that the line passes through?