Polygon XYZW is dilated by a scale factor of 2 with point T as the center of dilation, resulting in the image XYZW. If point T lies on YZ what can be said about Y'Z ?

Formulate alisha has a number in mind. if she adds three to her number the result is less than five. use this information to write and solve an inequality about alisha's number. then graph the solution set.

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle

Two cities a and b are 1400km apart and lie on the same n-s line. the latitude of city a is 23 degrees. what is the latitude of city b. the radius of the earth is approximately 6400km.