Use a parameterization to find the flux ModifyingBelow Integral from nothing to nothing Integral from nothing to nothing With Upper S Bold Upper F times n d sigma of Bold Upper F equals z squared Bold i plus xj minus 2 z Bold k in the outward direction​ (normal away from the​ x-axis) across the surface cut from the parabolic cylinder zequals 16minusysquared by the planes xequals ​0, xequals ​1, and zequals 0.

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.

The answer is 49/16 or 3 1/16

8-2x+3x2=6 and six is your answer