Which line is parallel to a line that has a slope of 3 and a y intercept at (0,0)

Express the following as a function of a single angle, cos(60) cos(-20) - sin(60) sin(-20)

Given the function f(x) = 3x + 1, evaluate f(a + 1). a. 3a + 1 b. a + 2 c. 3a + 4

Which are factor pairs of 350? choose all answers that are correct. a) 30 and 12 b) 35 and 10 c) 70 and 5 d) 2 and 125