precalc. Arithmetic and geometric questions.

Calculus
Tutor: None Selected Time limit: 1 Day

in an arithmetic sequence, t1=76 and t3=70, find t101

Apr 7th, 2015

t1 = a = 76

t3 = a+2d= 70   ----------------------------------------1

put value of a in 1

76+2d=70

2d=70-76

2d=-6

d=-6/2

d=-3

t101 = a+100d

        = 76 + 100(-3)

        = 76 - 300

        = -224


Apr 7th, 2015

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Apr 7th, 2015
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