a marketing manager states that the sales of a certain commodity will decline exponentially once the advertising campaign for the commodity is terminated. it is found that 21,000 units are being sold at the time of termination and 5 weeks later the sales level is 19,000 units. - find a function $(t) that gives the sales level t weeks after termination of advertising and determine what sales should be 8 weeks after termination of advertising.

Q: An assignment is worth 200200 points. For each day the assignment is late, the professor deducts 55…

A:

Q: Mobile instant messaging (IM) is a small portion of total IM usage, but it is expected to grow…

A: a). To find the percentage of total enterprise IM accounts were the mobile accounts in 2009,…

Q: 4) A typical cup of coffee contains 100 mg of caffeine. Every hour, approximately 16% of the amount…

A:

Q: The price of 1 gallon of unleaded gasoline at the pump dropped to $2.19 on January 1, 2015, and…

A: As the price of  1 gallon of unleaded gasoline is decreasing  4 cents per month starting from…

Q: Julie used data from 2017 to create this function to model the amount of daylight in New York City…

A:

Q: A person invested $530 in an account growing at a rate allowing the money to double every 8 years.…

A: Given problem is : A person invested $530 in an account growing at a rate allowing the money to…

Q: The below table will show Q, the quantity of carbon-14 (in micrograms, μg) in a 200 μg sample…

A: (a) For a linear model there is a constant slope, that is we know the equation of a line is y =…

Q: Suppose that a company has just purchased a new computer for $2400. The company chooses to…

A:

Q: The worst ecological disaster in U.S. history began on April 20, 2010, and was caused by an…

A: bn=2.520n & rn=441,000n a). an=bn-rn=2.520n-441,000n=-4,40,997.48n

Q: A concert hall has a maximum capacity of 4050. When the ticket price is $31.00 the average…

A: We have to find the function that models the per concent revenue in terms of the attendance x.

Q: A devastating freeze in California's Central Valley in Sanugry fHhe state's out approximately 75% of…

A: The given question should be converted into a linear equation using the given conditions.  Then we…

Q: office depot sells TI-84 plus calculaters for $100 each. In a typical august (right before school…

A:

Differential Equations

Have you ever observed the movement of the satellites and rockets or how the planets go around the sun in their orbits? How will you determine their motion? Definitely they follow some scientific laws and these kinds of problems are framed as differential equations.