whats the answer for use quadrilateral ABCD given that CD is the perpendicular bisector of AB , and AB is the perpendicular bisector of CD. Find the value of y.

Which expression is equivalent to (9x - 3 1/ + 1 3/8)

Find the volume of the solid obtained by rotating the region enclosed by the curves y=1x and y=7^-x about the x-axis. (use symbolic notation and fractions where needed.) volume =

|z| > (1/2) {-1/2, 1/2} {z|(-1/2) < z < (1/2)} {z|z < (-1/2) ∪ z > (1/2)}