Polonium-210 is a radioactive substance with a half-life of 138 days. if a nuclear facility is handling 180 grams of polonium-210, then how many grams of polonium-210 will be left in 340 days.

Explain why the two figures below are not similar. use complete sentences and provide evidence to support your explanation. (10 points) figure abcdef is shown. a is at negative 4, negative 2. b is at negative 3, 0. c is at negative 4, 2. d is at negative 1, 2. e

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

Bella want to know what the students at her school think of her show. which is the best group to survey to find this information a. go to the mall and ask all of the students she recognizes from school b. ask her viewers to call in durning an episode of the show c. get a list of students at her school from the office and use a random number generator to pick 30 of them d. get a list of students at her school from the office and pick the first 30 students on the list