That's what I got. to rationalize the numerator you have to multiply by the conjugate, in this case (√3 + 9) / (√3 + 9), which is what it looks like you did.
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Answer: 1/24 of Ralph's land
Step-by-step explanation:
Ralph gave each of his children a 6th of his land.
= 1/6
Lynn being his daughter got 1/6 of his land. She then shared it to her 4 children.
Children got 1/4 of Lynn's land which is 1/6 of Ralph's land.
Lynn's children therefore got;
= 1/4 * 1/6
= 1/24 of the land