Mathematics, 09.11.2019 11:31 ariyo0210
At a high school, students can choose between three art electives, four history electives, and five computer electives. each student can choose two electives.
which expression represents the probability that a student chooses an art elective and a history elective?
startfraction 7 c 2 over 12 c 2 endfraction
startfraction 7 p 2 over 12 p 2 endfraction
startfraction (3 c 1) (4 c 1) over 12 c 2 endfraction
startfraction (3 p 1) (4 p 1) over 12 p 2 endfraction
Answers: 1
Mathematics, 21.06.2019 23:00
The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z
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