Have you ever thought of questioning why your grades are good or poor in mathematics? Please discuss the issue with your art-stream group and science-stream group peers.

What school are you from and what state are you from?

In the figure, polygon abcd is transformed to create polygon a′b′c′d′. this transformation is a by a factor of .

Some gamma ray bursts are hypothesized to come from mergers of neutron stars or black holes. if this hypothesis is correct, what else should we in principle be able to detect from such mergers? a. gravitiational waves b. x-ray bursts c. significant disruption of gas thousands of light-years away in the surrounding galaxy d. an "afterglow" of bright visible light, lasting for weeks