Science and Mathematics for Engineering 6th Edition by John Bird

Exercise 20

If $\mathrm { a } = 0.270 , \mathrm {~b} = 15.85 , \mathrm { c } = 0.038 , \mathrm {~d} = 28.7$ and $\mathrm { e } = 0.680$ , evaluate $\mathrm { v }$ correct to 3 significant figures, given that: $\quad v = \sqrt { \left( \frac { a b } { c } - \frac { d } { e } \right) }$