exam
Maths Puzzle
Numerical Ability
The width of a tennis court is 12yd. How many feet is that?
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exam Other Question
Can you walk me thru this problem
Simplify: -(-(-1)).
Please help me.
Solve by completing the square.
2x^2+10x+11=0
I get-5+-sqrt23/2
not sure how I got there. Is it right? How should I work it out.