exam Maths Puzzle Numerical Ability


Hello again. Last question it is again about the tsunami word problem but its another question. SQUARE ROOT 9.8*4000. I am really confused.

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exam Other Question
An 18-ft board is cut into two pieces, one of which is 4 ft longer than the other. How long is each piece? Find the indicated outputs for f(x)=5x squared - 5x.

f(0) =