# Questions & Answers

JUMP TO TOPIC

- Determine whether each of these functions is a bijection from R to R.
- Based on the normal model N(100, 16), describing IQ scores. What percent of people’s IQ would you expect to be:
- The base of S is an elliptical region with boundary curve 9x^2+4y^2=36. Cross-sections perpendicular to the x-axis are isosceles right triangles with hypotenuse in the base. Find the volume of the Solid.
- Find an explicit description of nul A by listing vectors that span the null space.
- A -10.0 nC point charge and a +20.0 nC point charge are 15.0 cm apart on the x-axis. Find the following: