Helen is trying to prove the difference formula for cosine. She has started her proof as shown above. What property would she need to use for the next step in the proof?

How to use order of operation in 20 divide by 4 multiply 5 = 1

The function below show how much jayna and hannah charge for babysitting. which statement best compares the two plants?

Me with this assignment ! i only partially understand, so explain. also it's a work sample. at the championship bike race, steve and paula were fighting for first place. steve was 175 feet ahead of paula and had only 300 feet left to go. he was very tired and was going only 9 feet per second. paula was desperate to catch up and was going 15 feet per second. who won the bike race and by how far did she/he win?