Answer:
4x + 18
Step-by-step explanation:
This is called a composite function, meaning passing the range of one function as a domain of another function.
For f(f(x)), the inner-function's range is passed as the domain of the outer function.
We can do so by substitution,
The range of f(x) can be written as 2x + 6 for any defined x values,
So we will substitute 2x + 6 as the 'x' of another function which is in this case
f(x) again, so it looks like this 2(2x+6) + 6 which can be simplified into
4x + 18
Answer:that equals that
Step-by-step explanation:
crocket
Answer:
X = 3
Step-by-step explanation:
42 = 6x + 7x + 3
42 = 13x + 3 (simplify)
-3 -3 (subtract 3)
39 = 13x
/13 /13 (divide by 13)
3 = x
Hope this helps!! Can I please have brainliest!!
Step-by-step explanation:
A = A₀ ½^(t / T)
where A is the amount left, A₀ is the original amount, t is time, and T is the half life.
4 days is 96 hours, so the amount left is:
A = 600 ½^(96 / 15)