exam Maths Puzzle Numerical Ability

1/(x- square root 5)

thank you for your help :]

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exam Other Question

draw a mapping diagram using 2 lines from x=-5 to x=10.map all integer values onto diagram x(arrow)x+3 & x(arrow)2x+4. thanks! I hope someone can help me solve this problem:

I need to perform the indicated operation:
11-6/7-7

Thanks,
Ashley