Question

simplify and express the results as a power 10.
(5^4 × 5^5) ÷ 5^9​

Answer 1

$( {5}^{4} \: \times \: {5}^{5} ) \: \div \: {5}^{9} \\ ( {5}^{4 + 5}) \: \div {5}^{9} \\ {5}^{9} \: \div \: {5}^{9} \\ 5 ^{9 - 9} \\ {5}^{0} \\ = \: 1$