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dusya [7]
3 years ago
8

Which of the following are CORRECT answers

Mathematics
1 answer:
kap26 [50]3 years ago
7 0

(2x+3)^2=11\to2x+3=\pm\sqrt{11}\ \ \ |-3\\\\2x=-\sqrt{11}-3\ \vee\ 2x=\sqrt{11}-3\ \ \ |:2\\\\x=\dfrac{-\sqrt{11}-3}{2}\ \vee\ x=\dfrac{\sqrt{11}-3}{2}

Answer: C. and E.

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Why not write all of the numbers in decimal fraction form, to make them easier to compare?

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Now ask yourself:  Which of the last four numbers is between 68.666.. and 72.500?
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