Mathematics, 17.05.2021 06:00 sarbjit879
Which student correctly translated the phrase “twice the sum of a number cubed and nine” and evaluated it for r = 3?
Antonio's work. 2 (r cubed + 9) = 2 (3 cubed + 9) = 2 (9 + 9) = 2 (18) = 36.
Jessica's work. 2 (r cubed + 9) = 2 (3 cubed + 9) = 2 (27 + 9) = 2 (36) = 72.
Maria's work. 2 + r cubed + 9 = 2 + 3 cubed + 9 = 2 + 27 + 9 = 29 + 9 = 38.
Mark's work. 2 + 3 r + 9 = 2 + 3 (3) + 9 = 2 + 9 + 9 = 11 + 9 = 20.
Answers: 1
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Which student correctly translated the phrase “twice the sum of a number cubed and nine” and evaluat...
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