...If you don't read carefully, you'll get x = 4 and pick the answer choice that says 4. But the right answer is 12, because 3x = 12. (Yes, another solution to the equation is x = -10 which would make 3x = -30, but we were asked for a positive value.) I got a perfect score on the GRE Quantitative s... (read more)
...I have tutored both high school and college students in Physics, Chemistry, and Calculus. Also, I have helped student prepare for MCAT, GRE, GMAT, SAT, and AP exams. My tutoring sessions are very interactive and I help student understand concepts in detail. (read more)
...I am a PhD. chemist (UC Berkeley, 1991).
I have taught Organic Chemistry Laboratory, Organic Spectroscopy, and Advanced Organic Spectroscopy as an Adjunct Professor at Southern Oregon University. I am a native speaker of American English with several peer-reviewed scientific publications. I am a graduate of the University of California, where I received a BS. and PhD. in chemistry. (read more)
I have bachelor's degrees in both Physics and Philosophy from UC San Diego, and went on to earn my PhD in theoretical particle physics from Stanford. I now work as a senior research fellow at CERN. I have 10+ years experience teaching math and physics courses at the upper high school and college l... (read more)
...Specifically, I have taught courses on The Solar System, Stars & Galaxies, Big Bang Cosmology, Intro to Astrophysics, and Naked Eye Astronomy. My research interests include how galaxies make stars, the impact of supernovae on galaxy evolution, black hole accretion, and the identity of dark matte... (read more)