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3 years ago

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Let ABCD and EFGH be two quadrilaterals such that ABCD ~ EFGH. If AB = 15 cm, EF = 18 cm and the perimeter of ABCD is 40 cm, fin

d the perimeter of EFGH.

1 answer:

Andrews [41]3 years ago

7 0

Step-by-step explanation:

this photo is correct answer of this question.

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FromTheMoon [43]

Answer:

1. B

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Step-by-step explanation:

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3 years ago

-5x + y = -2<br> -3x + 6y = -12

Korolek [52]

Answer:

x = 0

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Step-by-step explanation:

-5x + y = -2

x = 0

y = -2

-3x + 6y = -12

x = 0

y = -2

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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\\
if\ q=2 \ then\ \sum_{i=0}^{8}\ 4*(2)^i= 4*\dfrac{1-2^9}{1-2} =2044\\

if \ q=-2 \ then\ \sum_{i=0}^{8}\ 4*(-2)^i= 4*\dfrac{1-(-2)^9}{1+2} =684\\



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Answer B (but see the problem)

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Answer:

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Step-by-step explanation:

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AURORKA [14]

Answer:

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Step-by-step explanation:

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