`11.699997 + 18.0011 + 7.0009 xx 4.9898= sqrt(?)`

Options

A. a. 4300
B. b. 9000
C. c. 100
D. d. 10000

Answer

To solve the problem \( 11.699997 + 18.0011 + 7.0009 \times 4.9898 = \sqrt{?} \), we will follow these steps:

### Step 1: Approximate the numbers
We will round the numbers to make the calculations easier:
- \( 11.699997 \approx 12 \)
- \( 18.0011 \approx 18 \)
- \( 7.0009 \approx 7 \)
- \( 4.9898 \approx 5 \)

### Step 2: Substitute the approximated values into the equation
Now we substitute the approximated values into the equation:
\[ 12 + 18 + 7 \times 5 = \sqrt{?} \]

### Step 3: Perform the multiplication
Calculate \( 7 \times 5 \):
\[ 7 \times 5 = 35 \]

### Step 4: Add the results
Now, add the results together:
\[ 12 + 18 + 35 \]

Calculating this step-by-step:
- \( 12 + 18 = 30 \)
- \( 30 + 35 = 65 \)

### Step 5: Set the equation
Now we have:
\[ 65 = \sqrt{?} \]

### Step 6: Square both sides to find the value of ?
To eliminate the square root, we square both sides:
\[ ? = 65^2 \]

### Step 7: Calculate \( 65^2 \)
Now we calculate \( 65^2 \):
\[ 65^2 = 4225 \]

### Final Answer
Thus, the value of \( ? \) is:
\[ ? = 4225 \]

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