WILL GIVE BRAINLEST!! Solve the triangle. Round answers to the nearest tenth.*

more answer choices:
C)a=2.6,b=2.3
D) a=3,b=1.6

Nnnnneeedd 1.find the residual if you know the actual number is 5.2 and the predicted value is 4.8

△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 .

An object is translated by (x + 4, y - 2). if one point in the image has the coordinates (5, -3), what would be the coordinates of its pre-image? (9, -5) (1, -5) (9, -1) (1, -1)