Beginning on January 1, park rangers in Everglades National Park began recording the water level for one particularly dry area of the park. The water level was initially 2.5 ft and decreased by approximately 0.015 ft/day. a. Write a function representing the water level L x (in ft), x days after January 1. b. Write an equation for L − 1 x . c. What does the inverse handier, represent in the context of this problem? d. Evaluate L − 1 1.9 and interpret its meaning in context.
Beginning on January 1, park rangers in Everglades National Park began recording the water level for one particularly dry area of the park. The water level was initially 2.5 ft and decreased by approximately 0.015 ft/day. a. Write a function representing the water level L x (in ft), x days after January 1. b. Write an equation for L − 1 x . c. What does the inverse handier, represent in the context of this problem? d. Evaluate L − 1 1.9 and interpret its meaning in context.
Solution Summary: The author determines the function L(x) ( in ft ) which defines the water level x days after January 1.
Beginning on January 1, park rangers in Everglades National Park began recording the water level for one particularly dry area of the park. The water level was initially 2.5 ft and decreased by approximately 0.015 ft/day.
a. Write a function representing the water level
L
x
(in ft), x days after January 1.
b. Write an equation for
L
−
1
x
.
c. What does the inverse handier, represent in the context of this problem?
d. Evaluate
L
−
1
1.9
and interpret its meaning in context.
After a great deal of experimentation, two college senior physics majors determined that when a bottle of French champagne is shaken several times, held upright, and uncorked,
its cork travels according to the function below, where s is its height (in feet) above the ground t seconds after being released.
s(t)=-16t² + 30t+3
a. How high will it go?
b. How long is it in the air?
+6x²+135x+1) (0≤x≤10). a) Find the number of units
The total profit P(x) (in thousands of dollars) from a sale of x thousand units of a new product is given by P(x) = In (-x²+6x² + 135x+
that should be sold in order to maximize the total profit. b) What is the maximum profit?
The fox population in a certain region has an annual growth rate of 8 percent per year. It is estimated that the
population in the year 2000 was 22600.
(a) Find a function that models the population t years after 2000 (t = 0 for 2000).
Your answer is P(t)
=
(b) Use the function from part (a) to estimate the fox population in the year 2008.
Your answer is (the answer should be an integer)
College Algebra with Modeling & Visualization (5th Edition)
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