A company manufacturing cars at plant A in Detroit and plant B in St. Louis has found that its total cost function is C = x 2 + 2y 2 + 2xy + 80x + 20y + 40 when x cars are produced at plant A and y at plant B. What production level at plant A should the company set to minimize the costs of production when filling an order for 80 cars?

When drawing a trend line for a series of data on a scatter plot, which of the following is true? a. there should be an equal number of data points on either side of the trend line. b. all the data points should lie on one side of the trend line. c. the trend line should not intersect any data point on the plot. d. the trend line must connect each data point on the plot.

Which function has the same domain as y=2x

What is the expression in factored form? 225x^2 - 144 a. 9(5x+4)^2 b. 9(5x-4)^2 c. 9(4x+5)(4x-5) d. 9(5x+4)(5x-4)