Choose the correct trigonometric ratio cos = adjaoent hypoternuse opposite hypotenuse opposite adjaoent

The diameter of a table is 5 feet. what is the circumference

This is so hard and it’s for a test

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