2 years ago

Which sign makes this number sentence true?

Mathematics

1 answer:

Karolina [17]2 years ago

8 0

Answer:

its D

Step-by-step explanation:

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lakkis [162]

Answer:

Second Option

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Step-by-step explanation:

To simplify the expression you must multiply the numerator and the denominator of the fraction by the conjugate of the denominator.

If you have an expression of the form

$a -b$ then its conjugate will be $a + b.$

The result of that multiplication will be

$a ^ 2 -b ^ 2$

Therefore we have the expression

$\frac{5}{\sqrt{11} -\sqrt{3}}$

By multiplying by the conjugate of the denominator we have

$\frac{5}{\sqrt{11} -\sqrt{3}}*\frac{\sqrt{11} +\sqrt{3}}{\sqrt{11} +\sqrt{3}}\\\\\\\frac{5(\sqrt{11} +\sqrt{3})}{(\sqrt{11})^2 -(\sqrt{3})^2}\\\\\\\frac{5\sqrt{11} +5\sqrt{3}}{11 -3}\\\\\\\frac{5\sqrt{11} +5\sqrt{3}}{8}$

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How many ways are there to choose 6 items from 10 dis- tinct items when?

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Assuming the order doesn't matter it would be 10c6 = 210 ways

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3 years ago

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Alexeev081 [22]

You can say -17.9+(-4.2)

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dolphi86 [110]

I think that the answer is C

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nadezda [96]

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Step-by-step explanation:

all of them have parallel sides except triangle

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