For p(x)= 7x^3 -28x^2 – 77X+210
use synthetic substitution to evaluate P(1).p(3) and P(4)

Identify the type of observational study described. a statistical analyst obtains data about ankle injuries by examining a hospital's records from the past 3 years. cross-sectional retrospective prospective

Write an equation of the line that passes through 9,2 and is parallel to the line y=5/3x+9

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.