3 years ago

Please help me with this

Mathematics

1 answer:

levacccp [35]3 years ago

6 0

Answer:

uhm more explaing into this please

Step-by-step explanation:

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Increase £240 by 30%?

laila [671]

240*0.30=72

72+240=312 euro

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3 years ago

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What is the sum of StartRoot negative 2 EndRoot and StartRoot negative 18 EndRoot? 4 StartRoot 2 EndRoot 4 StartRoot 2 EndRoot i

Sveta_85 [38]

Adding $\sqrt{-2}\,\,and\,\,\sqrt{-18}$ we get $4\sqrt{2i}$

Option C 4 StartRoot 2 EndRoot i is correct.

Step-by-step explanation:

We need to find the sum of: $\sqrt{-2}\,\,and\,\,\sqrt{-18}$

Finding sum:

$\sqrt{-2}+\sqrt{-18}$

$\sqrt{-2}$ can be written as $\sqrt{2}i$

$\sqrt{-18}$ can be written as $\sqrt{18}i$

We know 18 = 2x3x3 = 2x3^2 so,

$\sqrt{2i}+\sqrt{2\times 3^2}i$

$\sqrt{2i}+3\sqrt{2}i$

Adding like terms:

$4\sqrt{2i}$

So, adding $\sqrt{-2}\,\,and\,\,\sqrt{-18}$ we get $4\sqrt{2i}$

Option C 4 StartRoot 2 EndRoot i is correct.

Keywords: Square root expressions

Learn more about Square root expressions at:

#learnwithBrainly

6 0

3 years ago

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Please help me!!! And explain why you would do that because i dont get it????

Ksivusya [100]

For the example you gave of m+83, you would just write it out, like "m plus eighty three"

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3 years ago

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What is that in simplest form

Nimfa-mama [501]

It is already in simplest form as it has a smaller total of the numerator than of the denominator. 7 2/3- 3 1/6= 4 1/2

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3 years ago

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Nesterboy [21]

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Half of this is 5.75, or 5 3/4.

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3 years ago

Please help me with this​

Please help me with this