What is the measure of angle a?. A: 130, B: 50, C: 70, D: 30

Classify the following triangle check all that apply

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

If y varies directly as x2 and y=6 when x=6, find the constant of variation.