Thursday
April 24, 2014

Homework Help: Math

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

First Name:
School Subject:
Answer:

Related Questions

College Algebra - I need to find the domain of f, the excluded values of f, the ...
derivative (fg)' - This problem tests calculating new functions from old ones: ...
Math - How do you find a square root of a number that's not a perfect square? I'...
Algebra2 - If f (x) = x + 3 and g (x) = 3x - 1 then find the following: 1a. (f+...
Mathematics - sqrt 6 * sqrt 8 also sqrt 7 * sqrt 5 6.92820323 and 5.916079783 So...
Math - Given the polynomial functions, find the product function and the ...
Math Help please!! - Could someone show me how to solve these problems step by ...
Algebra 2 - If f(x)= x^2 + 3 and g(x) = 3x - 1 then find the following: 1a. (f+g...
algebra - Simplify: sqrt (21) (sqrt(7) + sqrt(3)) a) 7 sqrt (3) + 3 sqrt(7) b) 7...
is this correct?- math - find the domain of the real valued function; f(x) = ...

Search
Members