On a coordinate plane, there is a triangle with the coordinates C (2,5), D ( 2,-2), and E (5,-2). Find the coordinates up to a 270 degree rotation. Include all workings and coordinates. I WILL GIVE BRAINLIEST

What is the common difference in the following arithmetic sequence 7,3,-1,-5

(a) compute the maclaurin polynomial m2(x) for f(x) = cos x. (b) use the polynomial of part (a) to estimate cos π 12. (c) use a calculator to compute the error made using the estimate from part (b) for the value of cos π 12. remember that the error is defined to be the absolute value of the difference between the true value and the estimate.

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?