Suppose that an object is dropped from a height of h meters and hits the ground with a velocity of v meters per second. Then y=19.6h. If an object is dropped from a height of 21.3 meters, with what velocity does it hit the ground?
Round your answer to the nearest tenth.

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

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

Anna is constructing a line segment that is congruent to another segment ab. for the construction, which tool should be used to mesure segment ab