If A=28, then the measure of arc BA is_

Evaluate cos2θ for cosθ = square root of 3/2

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83

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