The diagonals ac and bd of the convex quadrilateral abcd with area 28 intersect each other at point o. the lines which are parallel to the diagonal ac come through the midpoints of segments bo and do . find the area of the portion of the quadrilateral that is between those lines.

Name the most appropriate metric unit for each measurement

Use the graph of the sine function y=2sinθ shown below

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?