2 years ago

Simplify r2-2r3+3r2 please help me I forgot the steps

Mathematics

1 answer:

Ksivusya [100]2 years ago

6 0

$r^{2}$ - 2 $r{3}$ + $3r^{2}$ |Combine Like terms

= $-2r^{3}$ + $4r^{2}$

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emmasim [6.3K]

Answer:

$\begin{array}{cccc}&\text{Watch basketball}&\text{Don't watch basketball}&\text{Total}\\\text{Watch soccer}&7&12&19\\\text{Don't watch soccer}&17&13&30\\\text{Total}&24&25&49\end{array}$

Step-by-step explanation:

From the diagram you can see that

17 people watch only basketball;
7 people watch both basketball and soccer;
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in total, 17+7+12=36 people watch some sports;
so, 49-36=13 people do not watch sports.

So, you can fill the table in following way

$\begin{array}{cccc}&\text{Watch basketball}&\text{Don't watch basketball}&\text{Total}\\\text{Watch soccer}&7&12&19\\\text{Don't watch soccer}&17&13&30\\\text{Total}&24&25&49\end{array}$

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2 years ago

What is the sum of 5+5=

madam [21]

Answer: 10

Step-by-step explanation:

If you have 5 apples and you have another group of 5 apples. You have a total of 10 apples.

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10 months ago

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NARA [144]

Answer:

16,30.34

Step-by-step explanation:

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2 years ago

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Leona [35]

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2 years ago

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Answer:

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Step-by-step explanation:

1,-3

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