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The symbols on a calculator represent different mathematical operations. For example, the "+" symbol is used for addition, the "-" symbol for subtraction, the "x" symbol for multiplication, and the "/" symbol for division. Other symbols like "^" represent exponentiation, "√" for square root, and "π" for the mathematical constant pi. Understanding these symbols is crucial for performing accurate calculations on a calculator.
Oh, dude, it's like super easy. You just press the square root button on your calculator, type in the number you want the square root of, and voila! The calculator does the math for you. It's like magic, but with numbers.
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The E symbol means 'times ten to the power of'. So 4E7 means 4 x 107 which is 40,000,000.
According to my calculator, that would be 11111.11106... Do you not own a calculator?