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OpenStudy (anonymous):
Find an equation for the nth term of a geometric sequence where the second and fifth terms are -21 and 567, respectively.
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OpenStudy (anonymous):
911
OpenStudy (anonymous):
r = 3, so a = -7. so the formula is x(n) = -7 times 3^n-1
OpenStudy (anonymous):
thank you
OpenStudy (anonymous):
wrong
OpenStudy (anonymous):
^ chosen one is right. i mean a = 7 and r = -3 haha xD
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OpenStudy (anonymous):
okay thanks that was one of my choices
OpenStudy (anonymous):
can you help me with another question?
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