Does this form a right triangle?

Measures of the angle of r, 31 s (x+4) t (3x+9)

Identify which functions are linear or non-linear. a. f(x) = x2 + 1 b. f(x) = 2x + 5 c. f(x) = x 2 + 3 d. f(x) = 3 x + 7 e. f(x) = 4x + 10 2 - 5

Divide. write in the simplest form. 4 1/6 divided by 10