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Evaluate: sqrt (11449)...

Evaluate:
`sqrt (11449)`

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The correct Answer is:
To evaluate \( \sqrt{11449} \) using the long division method, follow these steps: ### Step 1: Pair the digits Start from the right and pair the digits of the number 11449. We can pair them as follows: - Pair 49 (the last two digits) - Pair 14 (the next two digits) - The single digit left is 1. So we have the pairs: \( 1 | 14 | 49 \). ### Step 2: Find the largest square Now, we will find the largest square that is less than or equal to the first pair (1). The largest square is \( 1^2 = 1 \). ### Step 3: Subtract and bring down the next pair Subtract \( 1 \) from \( 1 \): \[ 1 - 1 = 0 \] Now, bring down the next pair (14) to get 014. ### Step 4: Double the divisor Double the number we found (which is 1) to get 2. We will now find a digit \( x \) such that \( (20 + x) \times x \) is less than or equal to 14. ### Step 5: Find the suitable digit Testing \( x = 0 \): \[ (20 + 0) \times 0 = 0 \quad \text{(valid)} \] Testing \( x = 1 \): \[ (20 + 1) \times 1 = 21 \quad \text{(not valid)} \] So, we take \( x = 0 \). ### Step 6: Subtract and bring down the next pair Now, we have: \[ 0 \text{ (from the previous step)} + 14 = 14 \] Subtract \( 0 \) from \( 14 \): \[ 14 - 0 = 14 \] Now bring down the next pair (49) to get 1449. ### Step 7: Double the divisor again Double the current quotient (which is 10) to get 20. Now we need to find a digit \( y \) such that \( (200 + y) \times y \) is less than or equal to 1449. ### Step 8: Find the suitable digit Testing \( y = 7 \): \[ (200 + 7) \times 7 = 207 \times 7 = 1449 \quad \text{(valid)} \] So, we take \( y = 7 \). ### Step 9: Final result Now, we have found that the square root of \( 11449 \) is \( 107 \) because: \[ 10 + 7 = 107 \] Thus, \( \sqrt{11449} = 107 \). ### Final Answer: \[ \sqrt{11449} = 107 \]
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