exam Maths Puzzle Numerical Ability

A man at ground level measures the angle of elevation to the top of a building to be 53 degrees. If, at this point, he is 12 feet from the building, what is the height of the buil

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exam Other Question

1)Find x ito 4 decimal places: Ln x-4ln=Ln(5/x)
2)if 4^x=4^2 then x= ?
3)if f(x)=sqrtx-2 then f^-1(x) is equal to?
4)what are the possible real zeros of the polynomial:6x^3+13 I have an answer already but I am not sure that I got this write, can you help?
Thank you
Write the equation of the line passing through (6, -10) and (6, -6).