3 years ago

PLEASE Help with number 14

1 answer:

8 0

14) The sum of anything and its additive inverse is zero. (That is the definition of additive inverse.) The appropriate choice is ...

... A) equal to 0

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The answer must be a comma separated list of values. If there aren't any answers, just say 0

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jenyasd209 [6]

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3 years ago

find the sum of a 9-term geometric sequence when the first term is 4 and the last term is 1,024 and select the correct answer be

olasank [31]

Hello,

$u_{1} =4\\
 u_{2} =4*q\\
 u_{3} =4*q^2\\
...\\

 u_{9} =4*q^8\\\\
==\textgreater\ 4*q^8=1024\\
==\textgreater\ q^8=256\\
==\textgreater\ q=2\mbox{( and there is a problem in the question) } \ or \ q=-2\\
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$

Answer B (but see the problem)

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3 years ago

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