Here is another interesting proof. the smaller white square is inside a larger square. each blue area is a right triangle. to find the area of the white square, you can find the area of the big square and subtract the areas of the right triangles. use these areas to write an equation for the area of the white square. simplify the equation if possible.

The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z