# calc

posted by
**Anonymous**
.

If x2 + y2 = 100 and dy/dt = 9, find dx/dt when y = 8. (Enter your answers as a comma-separated list.)

posted by
**Anonymous**
.

If x2 + y2 = 100 and dy/dt = 9, find dx/dt when y = 8. (Enter your answers as a comma-separated list.)