4points: a, b,c and d are marked in order on a line such that ab: ac = 3: 5 and bd: cd= 7: 2. if cd is 10cm long, find the length of ab.

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?

Christine wong has asked dave and mike to her move into a new apartment on sunday morning. she has asked them both, in case one of them does not show up. from past experience, christine knows that there is a 40% chance that dave will not show up and a 30% chance that mik a. what is the probability that both dave and mike will show up? (round your answer to 2 decimal places.) b. what is the probability that at least one of them will show up? c. what is the probability that neither dave nor mike will show up? (round your answer to 2 decimal places.)e will not show up. dave and mike do not know each other and their decisions can be assumed to be independent.