The half-life of a radioactive isotope is
A) half the time that it takes for a radioactive isotope to eat a large pizza.
B) half the time required for the decay of a large sample of nuclei of that isotope.
C) half the time required for a nucleus of that isotope to decay.
D) the time required for the decay of half of a large sample of nuclei of that isotope.
E) the time required for a nucleus of that isotope to partially decay.
Question 2
Company X increases its profits every year by 1 million. Its growth in profits is
A) Exponential. B) Quadratic. C) Parabolic. D) Linear.