Sam needs to study a possible link between anti-inflammatory drugs and heart disease. Help Sam design a study that would be appropriate. Explain the type of study, the sampling method,…
Month: July 2015
Problem 828
John has taken out a loan for college. He started paying off the loan with a first payment of $100. Each month he pays, he wants to pay back 1.1…
Problem 827
Tony has been planting strawberries in a garden in his backyard. Tony started with strawberries in one square foot of garden modeled by the function s(x) = 20. He is…
Problem 826
Stephanie is organizing the seating arrangements for a concert in her local park. The first row’s seats are modeled by the function f(x) = 15. To give everyone a good…
Problem 825
A baseball player has been improving every season since making it to the big leagues. Below is a table of the runs he has scored. His manager wants to try…
Problem 824
A biologist is comparing the growth of a population of flies per week to the number of flies a lizard will consume per week. She has devised an equation to…
Problem 823
We found that the marketing research department for the company that manufactures and sells memory chips for microcomputers established the following price-demand and revenue functions. P(x) = 105 – 4x…
Problem 822
The table contains price-supply data and price-demand data for corn. Find a linear regression model for the price-supply data where x is supply and y is prices. Do the same…
Problem 821
Complete the square and find the vertex from of the quadratic function. f(x) = -x2+6x-38 Solution:- Factor the coefficient of x2 out of the first two terms. f(x)…
Problem 820
The perimeter of a rectangle is 310 meters. Express the area A(L) as a function of the length L, and state the domain of this function. Solution:- …
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