Carbon-14 has a half-life of approximately 5730 years . this exponential decay can be modeled with the function

this is not the answer this is just a question. is this middle school math?

step-by-step explanation:

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !

b

step-by-step explanation:

3 3 6, because in every triangle the longer side is always shorter than the sum of the other two