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Formation of Algebraic Expressions

43.5 : 25 i...

Question

$4^{3.5}$ : $2^{5}$ is the same as

4 : 1

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2 : 1

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7 : 5

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7 : 10

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Solution

The correct option is A $4 : 1$
$4^{3.5} : 2^{5} = (2^{2})^{3.5} : 2^{5}$

$= 2^{7} : 2^{5}$
$= \frac{2^{7}}{2^{5}} : 1$

$= 2^{7 - 5} : 1$

$= 2^{2} : 1$

$= 4 : 1$

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Write the cubes of:

(1) −2

(2) +1

(3) −5

(4) +7

(5) −10

(6) 2

(7) 3

(8) 10

(9)

(10)

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