Posted by **Jamie** on Monday, November 8, 2010 at 12:55pm.

f(x)= 4-x^2 and g(x)= sqrt (x)

find the implied domain of fg(x)

fg(x)= f(sqrt(x))

fg(x)= 4-(sqrt(x))^2

fg(x)=4-(sqrt x)(sqrt x)

fg(x)=4-x

domain= (x:x=all real numbers)

Am I correct?

## Answer This Question

## Related Questions

- Math Help please!! - Could someone show me how to solve these problems step by ...
- Math - How do you find a square root of a number that's not a perfect square? I'...
- is this correct?- math - find the domain of the real valued function; f(x) = ...
- Math(Roots) - sqrt(24) *I don't really get this stuff.Can somebody please help ...
- Mathematics - sqrt 6 * sqrt 8 also sqrt 7 * sqrt 5 6.92820323 and 5.916079783 So...
- Algebra - Evaluate sqrt7x (sqrt x-7 sqrt7) Show your work. sqrt(7)*sqrt(x)-sqrt(...
- Real Analysis (Math) - Prove: [1/sqrt(2)] [sqrt(a) + sqrt(b)] <= sqrt(a + b...
- math,algebra,help - Directions are simplify by combining like terms. x radiacal ...
- Inequality - When I solve the inquality 2x^2 - 6 < 0, I get x < + or - ...
- math calculus please help! - l = lim as x approaches 0 of x/(the square root of...

More Related Questions