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Alla [95]
3 years ago
12

Write the product of -2 and (3 - 5a) as the sum of two factors

Mathematics
1 answer:
NARA [144]3 years ago
7 0

-6 + 10a


-2x3=6 and -2x-5a is 10a

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Answer:  \bold{(1)\ \dfrac{19,683}{64}\qquad (2)\ 16}

<u>Step-by-step explanation:</u>

(1)           (12, 18, 27, ...)

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(2)\qquad \bigg(\dfrac{1}{16},\dfrac{1}{8},\dfrac{1}{4},\dfrac{1}{2}\bigg)\\\\\\\text{The common ratio is}:\\\\r=\dfrac{a_{n+1}}{a_n}\quad  r=\dfrac{\frac{1}{8}}{\frac{1}{16}}=\boxed{2}\quad \rightarrow \quad r=\dfrac{\frac{1}{4}}{\frac{1}{8}}=\boxed{2}

The equation is:

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3 years ago
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cricket20 [7]
It is 230 I just clculated
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