1. consider the surface x^2 + y^2 + 9z^2 = 13 and the surface 1 = 2. (a) (2 points) classify each surface. (b) (2 points) sketch x + y^2 +9z^2 = 13. (c) (3 points) find a vector-valued function representing their intersection. (d) (2 points) find the arc length of this parametrization.

Match the term on the left with its image or description on the right. match term definition diameter a) circle a and a line segment connecting points b and c which are on the circle. circumference b) circle a and a line segment connecting points b and c which are on the circle. radius c) a piece of the circumference of a circle secant d) two circles that share the same center. concentric circles e) the distance around a circle arc f) a segment between two points on a circle that passes through its center

Me because some of question i don’t understand

Eden has a part time job. she is paid ? 7.20 an hour the week she worked 18 and a half hours how much is she paid