a. Find the sixth term of a geometric sequence for which *a _{1} *= -3 and

b. Write an equation for the *n*th term of the geometric sequence 5, 10, 20, 40, . . .

c. Find the seventh term of a geometric sequence for which *a _{3} =* 96 and r = 2.

Marss Feb 24, 2019

#1**+2 **

A a1* r^(n-1) = -3 * -2^5 = 96

B nth= 5* r^(n-1) = 5 * 2^(n-1)

c if a3 =96 and r =2 then a2 = a3/r = 48 a1 = a2/r =24 a7 = a1*r(n-1) = 24*2^6 = 1536

ElectricPavlov Feb 24, 2019