Mathematics
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OpenStudy (anonymous):
. What are the first three terms of the sequence: a1 = 4 and an = 2(an 1)2?
(Points : 4)
8, 16, 32, 64
4, 16, 32, 64
8, 64, 128, 256
4, 32, 2048
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OpenStudy (anonymous):
is this a trick question @Johnbc @Phebe
OpenStudy (phebe):
im here
OpenStudy (phebe):
no its not
OpenStudy (anonymous):
look: it says 3 TERMS and then each one is 4 terms except d
OpenStudy (phebe):
i think its B but hold on k
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OpenStudy (anonymous):
Check the equation again im not sure if it is this:\[2(a_n \times 1)2\]
OpenStudy (phebe):
well it must be D then
OpenStudy (phebe):
yea check the equation
OpenStudy (phebe):
i could have been wrong
OpenStudy (anonymous):
well they define the first term for you so it has to be 4 so the next term to use would be 5
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OpenStudy (anonymous):
That is tricky i dont understand what the _ means if either a subtraction or space?
OpenStudy (anonymous):
i think it is a subtraction sign
OpenStudy (phebe):
well u should put D if it said 3 instead of 4
OpenStudy (anonymous):
\[2(an-1)^{2r}\] This may be the equation
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OpenStudy (anonymous):
without the mini r at the end
OpenStudy (phebe):
byee nd the answer is D k XD
OpenStudy (anonymous):
should i put d?
OpenStudy (phebe):
yes totally
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OpenStudy (anonymous):
haha im worried it is a typo
OpenStudy (anonymous):
if you figure it out what do u get?
OpenStudy (anonymous):
D would be correct f we plug in the next number in the sequence
OpenStudy (anonymous):
If we have a1 = 4 then i get a2 = 32
OpenStudy (anonymous):
when i plug in a2 = 32 i get a3 = 2048
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OpenStudy (anonymous):
but there must be a typo in that question for sure
OpenStudy (anonymous):
alright ty i guess it was a trick question kinda
OpenStudy (anonymous):
Yeah trick question ha ha
OpenStudy (anonymous):
No problem