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Maths Puzzle
Numerical Ability
How do you do this problem? 7g+7=4g-2
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A ship using sound-sensing devices above and below water recorded a surface explosion 39 seconds sooner on its underwater device than on its above-water device. If sound travels in
Express irrational solutions in simplest radical form.
N^2-6=0 Would this be (+-)Sqrt 5?
(n-5)^2=20 Would this be (+-)2*Sqrt 5?