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Questions (1)
Which word best describes Anne’s relationship with her father?
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Answers (2)
Tn=a + (n-1)d T5=a +(5-1)d 0 =a + (4)d...eqn 1 T10 = a +(10 -1)d 10 =a + 9d...eqn 2 Subtract eqn 1 from 2 10 =a + 9d -0 =a + 4d 10 = 5d d = 2 Put d= 2 0 =a + (4)2 0 = a +8 a = 0 - 8 a = -8 Tn = a + (n -1)d T20=-8 +(20 -1) X 2 = -8 + 38 = 30
correct
