exam
Maths Puzzle
Numerical Ability
Solve by completing the square :
-7x = 5 - x^2
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exam Other Question
Simplify the expressions.
√2t^5 * √10t^4
(3-2√7)(3+2√7)
Greg spent 1/4 hour (h) responding to emails and 5/8 h returning phone calls. How much time did he spend on the two activities?