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# (pre-algebra) me with the questions above!    ### Another question on Mathematics Mathematics, 21.06.2019 14:30
Bismuth-210 is an isotope that radioactively decays by about 13% each day, meaning 13% of the remaining bismuth-210 transforms into another atom (polonium-210 in this case) each day. if you begin with 233 mg of bismuth-210, how much remains after 8 days? Mathematics, 21.06.2019 16:30
In two or more complete sentences, formulate how to use technology to calculate the appropriate regression model for the given data. you are not required to find the model, just choose the appropriate regression and explain how to use the technology. (-5,,2.,0.8), (0,-0.5), (2,-1.3), (3,-0.8), (5,2) Mathematics, 21.06.2019 19:00
Solve x+3y=6 and 4x-6y=6 by elimination . show work ! Mathematics, 21.06.2019 19:30
Una carretera recta forma un ángulo de 2°27' con el plano horizontal. de acuerdo con esto, ¿cuál es la distancia que se debe recorrer para elevarse 8.7 m sobre el nivel del punto de partida? a) 203.5 m b) 37.19 m c) 12.3 m d) 8.71 m
(pre-algebra)

me with the questions above!
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