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julia-pushkina [17]
3 years ago
10

Please help with my math! I need the answer quick! :( *It's been so long since I've done the math LOL*

Mathematics
1 answer:
svetoff [14.1K]3 years ago
5 0

Answer:

unit rate 1:8

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago
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kolezko [41]
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5 0
3 years ago
Simplify the surd 3√ 20 +√ 45 ​
melisa1 [442]

Answer:

9\sqrt{5}

Step-by-step explanation:

Using the rule of radicals

\sqrt{a} × \sqrt{b} ⇔ \sqrt{ab}

Simplify the radicals

\sqrt{20}

= \sqrt{4(5)}

= \sqrt{4} × \sqrt{5}

= 2\sqrt{5}

\sqrt{45}

= \sqrt{9(5)}

= \sqrt{9} × \sqrt{5}

= 3\sqrt{5}

Then

3\sqrt{20} + \sqrt{45}

= 3(2\sqrt{5} ) + 3\sqrt{5}

= 6\sqrt{5} + 3\sqrt{5}

= 9\sqrt{5}

3 0
2 years ago
Read 2 more answers
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