Hi,
f + g is a simple sum of the functions. This refers to increasing the good effect of exercise with diet effect, therefore more weight could be lost.
(f + g)(x) = f(x) + g(x) = 2x + 210 + 2x + 125 = 4x + 335, so (f + g)(x) = 4x + 335.
For x = 3 (meaning 3 hours of exercise) we have:
(f + g)(3) = 4·3 + 335 = 12 + 335 = 347 calories, after 3 hours of exercice.
The correct answer is: 347 calories burned while combining diet with 3 hours of exercise.
Have you understood ?
Green eyes.



with that template in mind, let's see, it went to the right 2 units, and then up 3 units.
that simply means, C = -2, D = 3.
<span>The answer is $624.15</span>
Answer:
r = 49
Step-by-step explanation:
686 = 14r
686/14= 49
r = 49