Saturday

August 30, 2014

August 30, 2014

Posted by **lydia** on Wednesday, February 29, 2012 at 9:35pm.

- Math please help urgent ! -
**lydia**, Wednesday, February 29, 2012 at 9:35pmslope**

- Math please help urgent !- derivative -
**MathMate**, Thursday, March 1, 2012 at 9:27amFirst find the derivative as a product:

d((10-sqrt x)(5+sqrt x))/dx

=(10-sqrt(x))((1/2sqrt(x))+(5+sqrt(x))(-1/2sqrt(x))

=(10-sqrt(x)-5-sqrt(x))/2sqrt(x)

=(5-2sqrt(x))/2sqrt(x)

Evaluate dy/dx at x=25

**Related Questions**

Math Help please!! - Could someone show me how to solve these problems step by ...

Math(Roots) - sqrt(24) *I don't really get this stuff.Can somebody please help ...

Math - How do you find a square root of a number that's not a perfect square? I'...

math calculus please help! - l = lim as x approaches 0 of x/(the square root of...

horizontal tangent - f(x) = sqrt(x^2 + 0.0001) At x = 0, which of the statements...

math,algebra,help - Directions are simplify by combining like terms. x radiacal ...

Calculus - Use implicit differentiation to find the slope of the tangent line to...

Mathematics - sqrt 6 * sqrt 8 also sqrt 7 * sqrt 5 6.92820323 and 5.916079783 So...

calculus - The point on the curve for y = sqrt(2x+1) at which tangent is ...

Algebra 2: Radicals URGENT!! - Could some kind, saintly soul help me solve this ...