Acoin is tossed. find the probability of the coin landing on heads. write your answer as a fraction, percent, and decimal

In the image, point a marks the center of the circle. which two lengths must form a ratio of 1 : 2? (options are in the images since thought they were harmful phrases)

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

Abouncy ball is released from a certain height. on the first bounce, it travels 32cm. with each subsequent bounce, it travels 9/10 the distance of the previous bounce. what is the total distance that the ball has traveled when it completes its 25th bounce?