Really need help !! Triangle STR is reflected across the y-axis. The resulting triangle is dilated about the origin by a scale factor of 2 to create triangle DEF. What is the measure, in degrees, of 2 DFE?

Jose is going to use a random number generator 500500 times. each time he uses it, he will get a 1, 2, 3,1,2,3, or 44.

Circle d circumscribes abc and abe. which statements about the triangles are true? statement i: the perpendicular bisectors of abc intersect at the same point as those of abe. statement ii: the distance from c to d is the same as the distance from d to e. statement iii: bisects cde. statement iv: the angle bisectors of abc intersect at the same point as those of abe. a. i only b. i and ii c. ii and iv d. i and iii e. iii and iv

What is the area of a triangle with vertices at (-3 3) (-3,2) and (1,2)?