If the ratio of the area of circle a to the area of circle b is 2 : 1, then how many times larger is the circumference of circle a than the circumference of circle b?

What is the size of the matrix resulting from

Explain how you do each step what term makes it inconsistent y=2x - 4 ?

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