SAT Math Practice Question #7937 - SATify | SATify
#7937
algebra
rate
functions
percentage
exponential
word problem
modeling
medium
90 sec
Calculator OK
The function C(m)=1000(0.95)m gives the amount, in grams, of a certain radioactive substance remaining after m months. What is the annual decay factor for this substance, rounded to two decimal places?
(Assume 1 year = 12 months.)
• Up to 5 characters (6 if negative). Only numbers, decimal (.), fraction (/), negative (-). • Fractions must be in lowest terms. • Mixed numbers must be converted to improper fractions.
