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What ‘’approximate’’ value should come in the place of question mark (?) in the following questions? (You are not expected to calculate the exact value )$$\sqrt[3]{80000}$$=?
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By: anil on 05 May 2019 03.19 am
We need to find the approximate value of $$sqrt[3]{80000}$$ We know that $$2^3 = 8$$ and $$10^3 = 1000$$ Let the value of $$sqrt[3]{80000} = X$$
So, $$X = 2 imes 10 imes sqrt[3]{10}$$ The $$sqrt[3]{10}$$ is approximately equal to 2.1 Hence, the approximate value equals $$20*2.1 = 42$$ The closest option is option (c)
By: anil on 05 May 2019 03.19 am
We need to find the approximate value of $$sqrt[3]{80000}$$ We know that $$2^3 = 8$$ and $$10^3 = 1000$$ Let the value of $$sqrt[3]{80000} = X$$
So, $$X = 2 imes 10 imes sqrt[3]{10}$$ The $$sqrt[3]{10}$$ is approximately equal to 2.1 Hence, the approximate value equals $$20*2.1 = 42$$ The closest option is option (c)
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So, $$X = 2 imes 10 imes sqrt[3]{10}$$ The $$sqrt[3]{10}$$ is approximately equal to 2.1 Hence, the approximate value equals $$20*2.1 = 42$$ The closest option is option (c)