Population decrease of russia. The population of Russia dropped from 150 million in 1995 to 142.5 million in 2013. ( Source : CIA– The World Factbook .) Assume that P ( t ) , the population, in millions, t years after 1995, is decreasing according to the exponential decay model. a. Find the value of k , and write the equation. b. Estimate the population of Russia in 2018. c. When will the population of Russia be 100 million?
Population decrease of russia. The population of Russia dropped from 150 million in 1995 to 142.5 million in 2013. ( Source : CIA– The World Factbook .) Assume that P ( t ) , the population, in millions, t years after 1995, is decreasing according to the exponential decay model. a. Find the value of k , and write the equation. b. Estimate the population of Russia in 2018. c. When will the population of Russia be 100 million?
Solution Summary: The author calculates the value of k and the exponential function that describe the population of Russia after time.
Population decrease of russia. The population of Russia dropped from 150 million in 1995 to 142.5 million in 2013. (Source: CIA–The World Factbook.) Assume that
P
(
t
)
, the population, in millions, t years after 1995, is decreasing according to the exponential decay model.
a. Find the value of k, and write the equation.
b. Estimate the population of Russia in 2018.
c. When will the population of Russia be 100 million?
Is the function f(x) shown in the graph below continuous at x = −5?
f(x)
7
6
5
4
2
1
0
-10
-9
-8 -7
-6
-5
-4
-3
-2
-1 0
1
2
3
4
5
6 7 8 9
10
-1
-2
-3
-4
-5
-6
-7
Select the correct answer below:
The function f(x) is continuous.
○ The right limit exists. Therefore, the function is continuous.
The left limit exists. Therefore, the function is continuous.
The function f(x) is discontinuous.
○ We cannot tell if the function is continuous or discontinuous.
4. Evaluate the following integrals. Show your work.
a)
-x
b) f₁²x²/2 + x² dx
c) fe³xdx
d) [2 cos(5x) dx
e) √
35x6
3+5x7
dx
3
g) reve
√ dt
h) fx (x-5) 10 dx
dt
1+12
Calculus for Business, Economics, Life Sciences, and Social Sciences (14th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, calculus and related others by exploring similar questions and additional content below.
01 - What Is A Differential Equation in Calculus? Learn to Solve Ordinary Differential Equations.; Author: Math and Science;https://www.youtube.com/watch?v=K80YEHQpx9g;License: Standard YouTube License, CC-BY
Higher Order Differential Equation with constant coefficient (GATE) (Part 1) l GATE 2018; Author: GATE Lectures by Dishank;https://www.youtube.com/watch?v=ODxP7BbqAjA;License: Standard YouTube License, CC-BY