Rita is hiking along a trail that is 13.7 miles long. so far she has hiked along one-tenth of the trail. how far has rita hiked?

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.

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Which expression is equal to (f+g)(x)?