exam Maths Puzzle Numerical Ability

Having trouble. Can you help? Evaluate (f o g)(3), given that f(x)=x^2-5x+1 and g(x)= sqrt(x+1). Thank you.

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exam Other Question

Write the equation of the line L satisfying the given geometric conditions.
L has y-intercept (0,-3)and is parallel to the line with equation y=2/3x+1
The total floor space in three barns is 45,000ft2. The two smaller ones have the same area and the largest one has three times the area of the smaller ones.

1.Determine the flo