Over the last 50 years, the average temperature has increas ed by 2.5 degrees worldwide (i made this up). what is the rate of change in worldwide temperatures per year?

If there is no real number solution to the quadratic equation x^2+2x+c=0 what is a possible value of c? 1 -2 0 3

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

Find the amplitude of a sinusoidal function that models this temperature variation