Find the expected value of the random variable with the given probability distribution.

Is fgh ~ jkl? if so, identify the similarity postulate or theorem that applies.

Ricardo ran the 400 meter race 3 times his fastest time was 54.3 seconds his slowest time was 56.1 seconds if his average time was 55.0 seconds what was his time for the third race

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.