A fence enclosure consists of a rectangle of length L and width 2R and a semicircle of radius R. The enclosure will have an area, A, of 1600 ft2. The cost of the fence is $40/ft for the curved portion and $30/ft for the straight sides. Find the values of R and L required to minimize the total cost of the fence. Also compute the minimum cost.

Mercury poisoning is dangerous overload of mercury within the body. a major source of mercury within the body, a major source of mercury poisoning is consuming fish that contain mercury. certain fish are more prone to having higher levels of mercury than others. the pie chart shows the distribution of four breeds of fish at a hatchery. the hatchery has approximately 6,000 fish. a biologist from the centers for disease control and prevention randomly test 5% of each breed of fish for mercury content. her findings are shown in the following table. based on the biologist's findings, if a single salmon is randomly selected from those that were tested, what is the probability that this particular fish would have a dangerous mercury level? a) 0.001 b) 0.004 c) 0.02 d) 0.08

()1. how do you find range? 2.the following set of data is to be organized into a histogram. if there are to be five intervals on the graph, what should the length of each interval be? 30, 34, 23, 21, 27, 25, 29, 29, 25, 23, 32, 31

The monetary value earned for selling goods or services to customers is called a.) revenue b.) assets c.) money d.) accounting