Mathematics, 26.07.2019 09:00 coolcat3190
Cerium-144 is a radioactive isotope with a half-life of 285 days. how long would it take for an initial sample of 15 grams of cerium-144 to decay until only 5 gram remains? a. about 452 days b. about 855 days c. about 570 days d. about 407 days
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Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !
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Type the correct answer in each box. use numerals instead of words. if necessary, use / fir the fraction bar(s). the graph represents the piecewise function: h
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Mathematics, 21.06.2019 22:30
Which statements about the system are true? check all that apply. y =1/3 x – 4 3y – x = –7 the system has one solution. the system consists of parallel lines. both lines have the same slope. both lines have the same y–intercept. the equations represent the same line. the lines intersect.
Answers: 2
Cerium-144 is a radioactive isotope with a half-life of 285 days. how long would it take for an init...
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