(a) If the half-life of 238. "Pu is 87.7 yr, write a function of the form Q (t) = Qe -kt to model the quantity Q (t) of " Pu left after t years. Round the value of k to five decimal places. Do not round intermediate calculations. -0.008t Q(t) = e e
(a) If the half-life of 238. "Pu is 87.7 yr, write a function of the form Q (t) = Qe -kt to model the quantity Q (t) of " Pu left after t years. Round the value of k to five decimal places. Do not round intermediate calculations. -0.008t Q(t) = e e
Chapter5: Exponential And Logarithmic Functions
Section5.5: Exponential And Logarithmic Models
Problem 30E: The table shows the mid-year populations (in millions) of five countries in 2015 and the projected...
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Transcribed Image Text:238
Pu is used to make thermoelectric power sources for spacecraft. Suppose that a space probe was launched in 2012 with 2.0 kg of
The isotope of plutonium
238 pu-
Part: 0 / 2
Part 1 of 2
238.
Pu left after t years. Round the value of
-kt
to model the quantity Q (t) of
(a) If the half-life of °Pu is 87.7 yr, write a function of the form Q (t) = Qe
k to five decimal places. Do not round intermediate calculations.
- 0.008t
Q (t) = e
e
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