If x = 30 degree, then which expression is equivalent to 1/2?
a. -sin x
b. sin x
c. -cot x
d. cot x

What is the missing step in this proof ?

What is the solution to the equation in the & show work i’m very

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15