Your answe would be 1 9/13
Answer: 1/4 (0.25)
<em>I hope this helps, and Happy Holidays! :)</em>
To find the relationship between them, lets do some algebra:
f(x) = (7/10)^x
g(x) = (7/10)^-x
if we do:
f(x) * g(x) = 1
due to exponents multiplying addition law, therefore, the relationship, gives:
f(x) = 1 / g(x)