3 years ago

There has been a break in at the local museum

Mathematics

2 answers:

Oliga [24]3 years ago

7 0

Answer:

Ummm, The robber looked at the dinosaur and got scared so he ran away

Step-by-step explanation:

Nadya [2.5K]3 years ago

4 0

Answer:

Step-by-step explanation:

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Step-by-step explanation:

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andrey2020 [161]

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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

$\sqrt{20}$

= $\sqrt{4(5)}$

= $\sqrt{4}$ × $\sqrt{5}$

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$\sqrt{45}$

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= 3 $\sqrt{5}$

Then

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

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

= 9 $\sqrt{5}$

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2 years ago

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3 years ago

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3 years ago