How can we write 1.25+1.25 +1.25 as a multiplication, using words, and as a single number? Make sure you answer all three parts
1 answer:
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Answer:
Step-by-step explanation:
In this problem we have a exponential function of the form
where
f(x) is the remaining mass of the element in grams
x is the time in minutes
a is the initial value (y-intercept of the exponential function)
b is the base
r is the rate
In this problem we have
---> is negative because is a decay's rate
substitute
The exponential function is equal to
For x=15 minutes
substitute in the function
The answer to the missing value is X = 3
