Write the number in expanded form. $2,111.221 _\text { three }$
A) $2 \cdot 3 ^ { 3 } + 2 \cdot 3 ^ { 2 } + 1 \cdot 3 ^ { 1 } + 1 \cdot 3 ^ { 0 } + 2 \cdot 3 ^ { - 1 } + 2 \cdot 3 ^ { - 2 } + 1 \cdot 3 ^ { - 3 }$
B) $1 \cdot 3 ^ { 3 } + 2 \cdot 3 ^ { 2 } + 2 \cdot 3 ^ { 1 } + 1 \cdot 3 ^ { 0 } + 2 \cdot 3 ^ { - 1 } + 2 \cdot 3 ^ { - 2 } + 1 \cdot 3 ^ { - 3 }$
C) $2 \cdot 3 ^ { 3 } + 1 \cdot 3 ^ { 2 } + 1 \cdot 3 ^ { 1 } + 1 \cdot 3 ^ { 0 } + 2 \cdot 3 ^ { - 1 } + 2 \cdot 3 ^ { - 2 } + 1 \cdot 3 ^ { - 3 }$
D) $1 \cdot 3 ^ { 3 } + 1 \cdot 3 ^ { 2 } + 1 \cdot 3 ^ { 1 } + 1 \cdot 3 ^ { 0 } + 2 \cdot 3 ^ { - 1 } + 2 \cdot 3 ^ { - 2 } + 1 \cdot 3 ^ { - 3 }$
E) $2 \cdot 3 ^ { 3 } + 1 \cdot 3 ^ { 2 } + 2 \cdot 3 ^ { 1 } + 1 \cdot 3 ^ { 0 } + 2 \cdot 3 ^ { - 1 } + 2 \cdot 3 ^ { - 2 } + 1 \cdot 3 ^ { - 3 }$

Question

Quizplus · Accepted Answer

To convert a number to expanded form, we break it down into its place value parts. In this number, the digit 2 is in the thousands place, the digit 1 is in the hundreds place, the digit 1 is in the tens place, and the digit 1 is in the ones place. The digit 2 is also in the tenths place, the digit 2 is in the hundredths place, and the digit 1 is in the thousandths place. Putting these together, we get: $$2\cdot3^{3}+1\cdot3^{2}+1\cdot3^{1}+1\cdot3^{0}+2\cdot3^{-1}+2\cdot3^{-2}+1\cdot3^{-3}$$ So, the correct choice is $\boxed{	extbf{(C)}}$.

Write the Number in Expanded Form 2,111.221 three 2,111.221 _\text { three }2,111.221 three ​

Write the Number in Expanded Form $2,111.221 _\text { three }$