In a dog show, there will be a gold, a silver, and a bronze medal awarded. there are 5 finalists. in how many different ways can the 3 medals be awarded?

Find the value of the cosine for angle a

Hurry and answer this! circle x with a radius of 6 units and circle y with a radius of 2 units are shown which steps would prove the circles similar? translate the circles so they share a common center point, and dilate circle y by a scale factor of 4. translate the circles so the center of one circle rests on the edge of the other circle, and dilate circle y by a scale factor of 4. translate the circles so they share a common center point, and dilate circle y by a scale factor of 3. translate the circles so the center of one circle rests on the edge of the other circle, and dilate circle y by a scale factor of 3

Pls the last one and it has to be like number 6