Peter records the time it takes him to finish an exercise routine. his two times are 58.39 min and 49.18 min. johnny records his exercise times as well. his two times are 35.71 min and 41.09 min. how many minutes more is peter's total time than johnny's total time? enter the answer as a decimal in the box.

Graph the equation. select integers for x

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b

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