Determine 3914

Find the quotient and the sixth term of GP if a1 = 420, a1 + a2 = 630.

Correct answer:

q =  0.5
a6 =  13.125

Step-by-step explanation:

a1=420 a1+a2=630 a2=630a1=630420=210 q=a2/a1=210/420=0.5
a6=a1 q61=420 0.561=13.125

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