Hello, I have a really simple question, and I'm sure I'm just missing something obvious. It's from the Chapter 3 In Action Problem Set. Question 5 states: When is |x-4| equal to 4-x? When I plug in a negative number for for x (such as -6, for example), I see that x can be any number less than 4, so ...

Hello, This question is from EIV, 4th Ed., Chap 5, P. 79: If f(x) = 3x - √x and g(x) = x^2, what is f(g(4)? The strategy guide only gives 1 answer for this question. Shouldn't there be two answers since √x can equal 4 or -4? My work: 1. g(4) = 4^2 = 16 2. f(16) = 3(16) - √16 = 48 -4 OR 48 +4 =...

Hello, I understand how to solve this DS problem, but when (for the sake of curioisity) I solve the problem mathematically, I get a different answer than what is given in the answer explanation. Please help straighten me out: If a car traveled from Townsend to Smallville at an average speed of 40 mp...

(6.804)^6(1.701)^-13 __________________ (2)^19(3.402)^-7 The expression (6.804)^6(1.701)^-13 _____________________ (2)^19(3.402)^-7 can be simplified as follows: (6.804)^6(3.402)^7 _________________ (2)^19(1.701)^13 Can someone please explain which exponent property is applied to "flip" t...