Find the value of each variable to the nearest tenth

△cde maps to △stu with the transformations (x, y) arrowright (x − 2, y − 2) arrowright (3x, 3y) arrowright (x, −y). if cd = a + 1, de = 2a − 1, st = 2b + 3 and tu = b + 6, find the values of a and b. the value of a is and the value of b is .

What is the area of the triangle 10 13 12

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a. p.