Start with a circle whose equation is (x - a)^2 + (y - b)^2 = r^2. dilate that circle by a scale factor of 1/r, with center of dilation (a, b). what does this transformation demonstrate

Give all possible names for the line shown.calculation tip: lines can be written with either point first.

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

The dash figure is a dilation if the original figure. find the scale factor. classify the dilation as an enlargement or a reduction