√(49)=√(7 ×7) = 7 √(81)=√(9 ×9) = 9 √(100)=√(10 ×10) = 10 Hence, nbsp;√(49)+√(81)+√(100) = nbsp;7+9+10 = 26. ...

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Comparison of Quantities Using Exponents

√49+√81+√100 ...

Question

$\sqrt{49}$ + $\sqrt{81}$ + $\sqrt{100}$ = .

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Solution

The correct option is C 26
$\sqrt{49} = \sqrt{7 \times 7} = 7$
$\sqrt{81} = \sqrt{9 \times 9} = 9$
$\sqrt{100} = \sqrt{10 \times 10} = 10$

Hence, $\sqrt{49}$ + $\sqrt{81}$ + $\sqrt{100}$
= 7+9+10
= 26.

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Similar questions

\sqrt{49}

\sqrt{81}

\sqrt{100}

49

:

81

:

:

100

:

?

\begin{matrix} 25 & 81 & (196) 16 & 49 & (121) 64 & 100 & (-) \end{matrix}

9 x - 7 x y

81 x^{2} + 49 x^{2} y^{2}

81 x^{2} - 49 x^{2} y^{2}

81 x^{2} + 49 x^{2} y^{2} - 126 x^{2} y

81 x^{2} + 49 x^{2} y^{2} - 63 x^{2} y

Factorise :

$81 - 49 x^{2}$

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