Evaluate the given integral by changing to polar coordinates. Sin(x2 y2) da r , where r is the region in the first quadrant between the circles with center the origin and radii 2 and 5.

How can we find the measure of an exterior angle if we know the measurement of an interior angle

What are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)

Over the course of the school year, you keep track of how much snow falls on a given day and whether it was a snow day. your data indicates that of twenty-one days with less than three inches of snow, five were snow days, while of the eight days with more than three inches of snow, six were snow days. if all you know about a day is that it is snowing, what is the probability that it will be a snow day?