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Work Shown:
[tex](a * 10^b) \div (c * 10^d) = \frac{a}{c}*10^{b-d}\\\\(5.75 * 10^{4}) \div (2.5 * 10^{3}) = \frac{5.75}{2.5}*10^{4-3}\\\\(5.75 * 10^{4}) \div (2.5 * 10^{3}) = 2.3*10^{1}\\\\[/tex]
Side note,
[tex]2.3 *10^1 = 23[/tex]