10 to the 5th power is 10x10x10x10x10 which equals 100000
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7.5 x 105 = 750,000
10 to the power of 5 or 105 is written as 100,000 in standard notation.
5 times by 10 to the power of 3 in standard notation = 5,000
4.9 × 10-5 written in standard notation is 0.000049
The Roman numeral "XXVX" is not a valid Roman numeral according to the standard rules of Roman numeral notation. In Roman numerals, "V" represents 5 and "X" represents 10. Therefore, "XXVX" would be interpreted as 20 + 5 + 10, which equals 35 in standard Arabic numerals. However, the use of "V" before "X" violates the subtractive principle of Roman numerals, where a smaller numeral before a larger one indicates subtraction.