ABCD is a quadrilateral. The lengths AB, AC, BC and CD are all equal. Angle ACD = 90º.Prove that angle ADB = 30º.

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

Gh bisects fgi. find the measure of hgi •15° •21° •10° •8°

In a column proof the right column states your reasons