Let X be a set. If A X is a subset of X the characteristic function of A is the function x- (0,11 given by xA(ar) 0 if z E A A. R if 1 Let A and B be two subsets of X. Prove that (a) XAnB XAXB

Which composition of similarity transformations maps polygon abcd to polygon a'b'c'd'? a dilation with a scale factor less than 1 and then a reflection a dilation with a scale factor less than 1 and then a translation a dilation with a scale factor greater than 1 and then a reflection a dilation with a scale factor greater than 1 and then a translation

Divide. write in simplest form 41/6 divided by 10

If a company produces x units of an item at a cost of $35 apiece the function c=35x is a of the total production costs