Let a and b be positive integers with a ::; b, and let X be a random variable that takes as values, with equal probability, the powers of 2 in the interval [2a, 2 b . Find the expected value and the variance of X

Afruit stand has to decide what to charge for their produce. they need $10 for 4 apples and 4 oranges. they also need $15 for 6 apples and 6 oranges. we put this information into a system of linear equations. can we find a unique price for an apple and an orange?

This figure consists of a rectangle and semicircle. what is the perimeter of this figure use 3.14 for pi 60.84m 72.84m 79.68m 98.52m

What is the order of these fractions from least to greatest 2/3 7/10 5/8 65/100