A professor gives his students 10 essay questions to practice in preparation for an exam. Only 3 of the questions will actually appear on the exam. How many different exams are possible?

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

Write the summation to estimate the area under the curve y = 1 + x2 from x = -1 to x = 2 using 3 rectangles and right endpoints

Find the maximum value of p= 4x + 5y subject to the following constraints :