228Th -> 4He+?
90. 2

Arectangle has a diagonal 20 inches long that forms angles of 60 and 30 with the sides. find the perimeter of the rectangle. for geometry

Describe the structure of ammonium lauryl sulfate. refer to the given diagram. your answer should include the type of bonding, the elements contained, and the size and shape of the molecule. write a short paragraph.

Listed below are the amounts of mercury (in parts per million, or ppm) found in tuna sushi sampled at different stores. the sample mean is 0.836 ppm and the sample standard deviation is 0.253 ppm. use technology to construct a 90% confidence interval estimate of the mean amount of mercury in the population.