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Furkat [3]
3 years ago
5

Andy has a collection of movie dvds. in andys collection 3/5 of the dvds are action 1/4 of the dvds are comedy. andy said that 4

/9 of his collection is action or comedy. cynthia said that andy made an errer. explain wether andy is correct or incorect and why.
Mathematics
1 answer:
Cerrena [4.2K]3 years ago
6 0

This question is based on greatest common multiple.

Answer:

Cynthia is right that Andy made an error.

Step-by-step explanation:

As per Andy, action dvds are = \frac{3}{5}

And comedy dvd's are = \frac{1}{4}

So, in total these become = \frac{3}{5}+ \frac{1}{4}

= \frac{12+5}{20} = \frac{17}{20}

This is not 4/9 as per Andy.

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Answer:

OK SO A Which polynomial is prime?

7x2 – 35x + 2x – 10

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Step-by-step explanation:

Which polynomial is prime?

7x2 – 35x + 2x – 10

9x3 + 11x2 + 3x – 33  

10x3 – 15x2 + 8x – 12  

12x4 + 42x2 + 4x2 + 14

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3 years ago
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We have expression -5 < x - 4 \geq 1 that renders the system of inequalities,

\begin{cases}-5 < x - 4 \\x - 4 \geq 1\end{cases}

Which can be simplified to,

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So what we get is something greater than -1 and at the same time greater or equal to 5, so the solution is,

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