Which expression is equivalent to 3cos^2(theta/2) -3?
3/2 (COS(theta)-1)
3/2 (cos(theta) –5)
3(cos(theta) + 2)
3(cos(theta) + 1)

Consider the function f(x)=−2/3x+5 . what is f(1/2) ? enter your answer, as a simplified fraction, in the box. f(1/2)=

What is the point-slope form of theequation for the line with a slope of-2 that passes through (1, 4)? a y + 1 = -2(x + 4)b y-1=-2(x-4)c y + 4 = -2(x + 1)d y - 4 = -2(x - 1)

Which exponential function has an initial value of 2? f(x) = 2(3x) f(x) = 3(2x)