misswellman misswellman
  • 04-05-2017
  • Mathematics
contestada

the fifth term of a geometric system is 112 and the ninth term is 1792. find the common ratio of the sequence

Respuesta :

irspow
irspow irspow
  • 04-05-2017
We can find the common ratio by setting up a ratio :P of the two given points...

Since any geometric sequence term is a(n)=ar^(n-1) and we have two terms we can say:

1792/112=(ar^8)/(ar^4)

16=r^4

r^2=4

r=2

So the common ratio is 2.
Answer Link

Otras preguntas

g. a car travels at 60m/s for 50minutes south west.calculate how far it will travel
If a peregrine falcon dove at its maximum speed for half a mile to catch prey, how many seconds would the dive take? (round your answer to the nearest second. )
Which animals are cold-blooded, breathe with lungs, most lay eggs, although in some the eggs hatch inside the female, and have scales or plates? question 17 opt
please help i am confused.
write cynical in a sentence. PLEASE THIS IS DUE TODAY!
don't bother to ....... for me ( waiting , wait)​
What year did the united states first stablish a federal army
If my dot plot is not skewed or symmetrical which measure of variability should I use? (15 data points) PLEASE HELP THE ASSIGNMENT IS DUE TONIGHT! these are th
what is the right answer for this
the education foundation hosted an anual fundrasing dinner. there were 192 tickets printed for the dinner and each dinner ticket cost $12.50. if 3/4 of the dinn