Sociologists have found that information spreads among a population at an exponential rate. Suppose that the function

Rui Baldwin
2021-08-03
Answered

Sociologists have found that information spreads among a population at an exponential rate. Suppose that the function

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liannemdh

Answered 2021-08-04
Author has **106** answers

Step 1

Determine the$90\mathrm{\%}$ of the people on the town:

$=0.9\times 525=472.5$

then graph$y=472.5$

the x coordinate of intersection point represent the time required for the$90\mathrm{\%}$ to hear the opening

conclude that$t\approx 61$ hour

Step 2

Determine the

then graph

the x coordinate of intersection point represent the time required for the

conclude that

Step 2

asked 2020-11-03

The exponential models describe the population of the indicated country, A, in millions, t years after 2010.Which country has the greatest growth rate? By what percentage is the population of that country increasing each year?

India,

Iraq,

Japan,

Russia,

asked 2021-02-25

The population of California was 29.76 million in 1990 and 33.87 million in 2000. Assume that the population grows exponentially.

(a) Find a function that models the population t years after 1990.

(b) Find the time required for the population to double.

(c) Use the function from part (a) to predict the population of California in the year 2010. Look up California’s actual population in 2010, and compare.

(a) Find a function that models the population t years after 1990.

(b) Find the time required for the population to double.

(c) Use the function from part (a) to predict the population of California in the year 2010. Look up California’s actual population in 2010, and compare.

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Show that an exponential model fits the data. Then write a recursive rule that models the data.

n 0 1 2 3 4 5 f(n)0.75 1.5 3 6 12 24

n 0 1 2 3 4 5 f(n)0.75 1.5 3 6 12 24

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Mr. Lopez picks up 2 pallets of dog food to deliver to the animal shelter. Each pallet contains 40 bags of dog food, and the dog food weighs

A

B 2 T

C

D

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The values of two functions, f and g, are given in a table. One, both, or neither of them may be exponential. Give the exponential models for those that are. (If an answer does not exist, enter DNE.)

asked 2021-09-06

The initial value of building is $1,456,000. After one year the value of the building is $1,405,040. What exponential dunction models the expected value of the building? Estimate the value of the building after 5 years.

asked 2021-06-29

Give an example of an exponential function that models exponential growth and an example of an exponential function that models exponential decay.