ANALYZE Consider rectangle QRST with QR=ST=4 centimeters and RS=QT=2 centimeters. If point U is on QR⎯⎯⎯⎯⎯ such that QU=UR and point V is on RS⎯⎯⎯⎯⎯ such that RV=VS , then is QU⎯⎯⎯⎯⎯⎯ congruent to RV⎯⎯⎯⎯⎯ ? Justify your argument. Input Field 1 of 1

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