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math ds/dx (derivative)?
A retail sporting goods store estimates that weekly sales S and weekly advertising costs x are related by the equation S = 60,000 - 40,000e^(-0.0005x) . The current weekly advertising costs are $2,000, and these costs are increasing at a rate of $300 per week. Find the current rate of change of weekly sales.
1 AnswerMathematics1 decade agosolving log base 10 problems?
I have a hard time solving the following problems, could someone help out please?
1. log10(x+6) - log10(x-3) = 1
2. log10(x-1) - log10(x+1) = 1
1 AnswerMathematics1 decade agoprime number?
Let f(n) = ((4n-2)/(n+1))*f(n-1), n >1
Supposed f(2) and f(3) are prime numbers. Prove that f(n) is Not prime for any other integer values n>1.
How could I prove that?
1 AnswerMathematics1 decade agoHierarchy of data elements?
List the hierarchy of data elements from small to large. (Large being the database and it's contents.)
3 AnswersOther - Computers2 decades agoBlock coding?
Which encoding method would benefit most from block coding: unipolar, polar or bipolar? Why?
1 AnswerComputer Networking2 decades agoWhat is object oriented programming?
I dont know a lot about computer, but I heard my friend talk about object oriented programming.
What is object oriented programming?
What are its major elements?
Is it an important concept in programming? Why so?
5 AnswersProgramming & Design2 decades agodata communication - response time?
How do transmission media, cable, etc. affect the reponse time?
1 AnswerComputer Networking2 decades ago