Difference between revisions of "2017 AMC 8 Problems/Problem 3"

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To solve the equation<math>\sqrt{16\sqrt{8\sqrt{4}}}</math>. The square root of four is 2. Multiply this by 8 to get 16, and the square root of sixteen is 4, and multiply this by 16 to get 64. The square root of 64 is 8, hence the answer (C).
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==Problem 3==
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What is the value of the expression <math>\sqrt{16\sqrt{8\sqrt{4}}}</math>?
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<math>\textbf{(A) }4\qquad\textbf{(B) }4\sqrt{2}\qquad\textbf{(C) }8\qquad\textbf{(D) }8\sqrt{2}\qquad\textbf{(E) }16</math>
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==Solution==
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To solve the equation<math>\sqrt{16\sqrt{8\sqrt{4}}}</math>. The square root of four is <math>2</math>. Multiply this by <math>8</math> to get <math>16</math>, and the square root of sixteen is <math>4</math>, and multiply this by <math>16</math> to get <math>64</math>. The square root of <math>64</math> is <math>8</math>, hence the answer (C).
  
 
~pegasuswa
 
~pegasuswa
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==See Also==
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{{AMC8 box|year=2017|num-b=2|num-a=4}}
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{{MAA Notice}}

Revision as of 15:04, 22 November 2017

Problem 3

What is the value of the expression $\sqrt{16\sqrt{8\sqrt{4}}}$?

$\textbf{(A) }4\qquad\textbf{(B) }4\sqrt{2}\qquad\textbf{(C) }8\qquad\textbf{(D) }8\sqrt{2}\qquad\textbf{(E) }16$

Solution

To solve the equation$\sqrt{16\sqrt{8\sqrt{4}}}$. The square root of four is $2$. Multiply this by $8$ to get $16$, and the square root of sixteen is $4$, and multiply this by $16$ to get $64$. The square root of $64$ is $8$, hence the answer (C).

~pegasuswa

See Also

2017 AMC 8 (ProblemsAnswer KeyResources)
Preceded by
Problem 2
Followed by
Problem 4
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
All AJHSME/AMC 8 Problems and Solutions

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