If set a = {3, 4, 7, 9} and set b = {8, 9, 10, 11}, then a∪b is
{9}

{3, 4, 7, 8, 10, 11}

{3, 4, 7, 8, 9, 10, 11}

In the final round of trivia competition, contestants were asked to name as many states that begin with the letter m as they could in 15 seconds. the bar graph shows the number of states the contestants were able to name. how many contestants participated in the final round of the competition? a) 6 b) 8 c) 14 d) 20

In the given figure ar(adf) =ar(cda) and ar(cdf) = ar(cdf). show that abdc and cdfe are trapeziums.

In angle pqr find the measure of