The population of the United States P t (in millions) since January 1, 1900, can be approximated by P t = 725 1 + 8.295 e − 0.0165 t where t is the number of year since January 1, 1900. (See Example 6) a. Evaluate P 0 and interpret its meaning in the context of this problem. b. Use the function to approximate the U.S. population on January 1, 2020. Round to the nearest million. c. Use the function to approximate the U.S. population on January 1, 2050. d. From the model, during which year would the U.S. population reach 500 million? e. What value will the term 8.295 e 0.0165 t approach as t → ∞ ? f. Determine the limiting value of P t .
The population of the United States P t (in millions) since January 1, 1900, can be approximated by P t = 725 1 + 8.295 e − 0.0165 t where t is the number of year since January 1, 1900. (See Example 6) a. Evaluate P 0 and interpret its meaning in the context of this problem. b. Use the function to approximate the U.S. population on January 1, 2020. Round to the nearest million. c. Use the function to approximate the U.S. population on January 1, 2050. d. From the model, during which year would the U.S. population reach 500 million? e. What value will the term 8.295 e 0.0165 t approach as t → ∞ ? f. Determine the limiting value of P t .
Solution Summary: The author calculates the value of P(0), where t stands for number of years, and interprets its meaning using the graph given below.
The population of the United States
P
t
(in millions) since January 1, 1900, can be approximated by
P
t
=
725
1
+
8.295
e
−
0.0165
t
where t is the number of year since January 1, 1900. (See Example 6)
a. Evaluate
P
0
and interpret its meaning in the context of this problem.
b. Use the function to approximate the U.S. population on January 1, 2020. Round to the nearest million.
c. Use the function to approximate the U.S. population on January 1, 2050.
d. From the model, during which year would the U.S. population reach 500 million?
e. What value will the term
8.295
e
0.0165
t
approach as
t
→
∞
?
Robbie
Bearing Word Problems
Angles
name:
Jocelyn
date: 1/18
8K
2. A Delta airplane and an SouthWest airplane take off from an airport
at the same time. The bearing from the airport to the Delta plane is
23° and the bearing to the SouthWest plane is 152°. Two hours later
the Delta plane is 1,103 miles from the airport and the SouthWest
plane is 1,156 miles from the airport. What is the distance between the
two planes? What is the bearing from the Delta plane to the SouthWest
plane? What is the bearing to the Delta plane from the SouthWest
plane?
Delta
y
SW
Angles
ThreeFourthsMe MATH
2
Find the derivative of the function.
m(t) = -4t (6t7 - 1)6
Find the derivative of the function.
y= (8x²-6x²+3)4
A Problem Solving Approach To Mathematics For Elementary School Teachers (13th Edition)
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