A contractor charges $50 for a service call plus $60 per hour for his work. How long will
he have to work to earn $350?

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Ответ:

munozgiselle

11.09.2020

Mathematics

answer

the correct answer is option c

explanation

we have

$2(\sqrt[4]{16x})- \sqrt[4]{2y}+3(\sqrt[4]{81x})-4\sqrt[4]{32y}$

we simplify as follows;

$2(\sqrt[4]{16} \times \sqrt[4]{x})- \sqrt[4]{2y}+3(\sqrt[4]{81} \times \sqrt[4]{x})-4\times \sqrt[4]{16} \times \sqrt[4]{2y}$

$2(2 \times \sqrt[4]{x})- \sqrt[4]{2y}+3(3\times \sqrt[4]{x})-4 \times2 \sqrt[4]{2y}$

$4\sqrt[4]{x}- \sqrt[4]{2y}+9\sqrt[4]{x}-8 \sqrt[4]{2y}$

$4\sqrt[4]{x}+9\sqrt[4]{x}-2 \sqrt[4]{2y}- 8\sqrt[4]{2y}$

$13\sqrt[4]{x}-10 \sqrt[4]{2y}$

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