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anonymous
 one year ago
What are the explicit equation and domain for a geometric sequence with the first term of 5 and a second term of 10?
anonymous
 one year ago
What are the explicit equation and domain for a geometric sequence with the first term of 5 and a second term of 10?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0an=5(2)^(n1); all integers when n≥1 an=5(2)^(n1); all integers where n≥0 an=5(15)^(n1); all integers where n≥1 an=5(15)^(n1); all integers where n≥0

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I'm pretty sure the second half is n≥1

phi
 one year ago
Best ResponseYou've already chosen the best response.1You could test each choice. You should get 5, 10 as the first two numbers.

phi
 one year ago
Best ResponseYou've already chosen the best response.1***an=5(2)^(n1); all integers when n≥1*** for n=1 you get \[ a_1 = 5(2)^{11} \\ a_1 = 5\cdot (2)^0 \] anything to the zero power is 1 , so that simplifies to \[ a_1= 5 \cdot 1 \\a_1=5\] that looks good so far

phi
 one year ago
Best ResponseYou've already chosen the best response.1now find a2 for choice A, using n=2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0a2=5(2)^(21) =5(2)^1 =10

phi
 one year ago
Best ResponseYou've already chosen the best response.1yes. so choice A looks like the answer. You could double check the other three, but they won't work (give 5, 10)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok thank you i have another but i don't know how to post the graphs so oh well

phi
 one year ago
Best ResponseYou've already chosen the best response.1do you know how to take a screen shot?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the wording is horrible

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yeah put its on my other computer hang on

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0It says which logarithmic graph can be used to approximate the value of y in the equation 2^y=3

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i don't know how to log that?

phi
 one year ago
Best ResponseYou've already chosen the best response.1take the log of both sides. Log base 2 is the most convenient, but log base 10 or log base 3 (natural log) all can be used. use the "rule" \[ \log(a^b) = b \log(a) \]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so… log10 2^y= log10 3

phi
 one year ago
Best ResponseYou've already chosen the best response.1and then use the rule to write \[ y \log 2 = \log 3 \\ y = \frac{\log 3}{\log 2} \]

phi
 one year ago
Best ResponseYou've already chosen the best response.1to get the answer from a graph, we need to figure out what log base they used. for example, what is the x value that corresponds to y=1 (that should give us the base)

phi
 one year ago
Best ResponseYou've already chosen the best response.1Here are 3 possible logs if they gave you log base 2, read off the y value at x=3
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