Question

please solve step by step no direct answer

Rationalize the questions

who will do correct I will mark as brilliant​

Answer 1

Answer:

water is flowing into water tanks at the rate of20 cubic centimetre per second if the volume of water collected in X seconds in y cubic centimetre then write a linear equation and find volume of water after 5 second

Answer 2

Answer:

$\frac{1}{ \sqrt[3]{7} } \\ = \frac{1}{ \sqrt[3]{7} } \times \frac{ - \sqrt[3]{7} }{ - \sqrt[3]{7} } \\ = \frac{ - \sqrt[3]{7} }{7 }$

$\frac{1}{2 + \sqrt{5} } \\ = \frac{1}{2 + \sqrt{5} } \times \frac{ 2 - \sqrt{5} }{ 2 - \sqrt{ 5} } \\ = \frac{ 2 - \sqrt{5} }{4 - 5} = \frac{2 - \sqrt{5} }{ - 1}$

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