A sequence of transformations is described below. • A dilation about a point P
• A rotation about another point Q
. Avertical stretch about the horizontal line PO
• A reflection over
PO
Which of the following must be preserved under this sequence of transformations?

With finding limits of multi variable !

Find the volume of the solid whose base is the region bounded by f(x), g(x) and the x-axis on the interval [0, 1], and whose cross-sections perpendicular to the y-axis are squares. your work must show the integral, but you may use your calculator to evaluate it. give 3 decimal places for your answe

Which one is the correct answer, and why?