Current location - Training Enrollment Network - Mathematics courses - 20 1 1 how to do the seventh multiple-choice question in the college entrance examination of mathematics and science in Shandong province?
20 1 1 how to do the seventh multiple-choice question in the college entrance examination of mathematics and science in Shandong province?
For linear programming problems, this equation must pass the average value of x and y.
Given that b is 9.4, substitute the average value of x 3.5 and the average value of y 42.