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Guided Practice

2. COLLEGE The function C(x) = 2.46x3 – 22.37x2 + 53.81x + 548.24 can be used to

approximate the number, in thousands, of international college students studying in the

United States x years since 2000. How many international college students can be

expected to study in the U. S. in 2015?

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39

Write a description of each inequality. 1. -5a + 3 > 1 2. 27 - 2b < -6 (this < has a _ under it) 3. 1/2 (c + 1) > 5 (this > has a _ under it)

Anew test for ra is being developed. the test is administered to 750 patients with ra and 750 without ra. for the sake of the question, assume the prevalence of ra in this population is 50%. of the 750 patients with ra, 575 have a positive result. of the 750 patients without ra, 150 have a positive result. what is the positive predictive value of the new test? a575/(575+150) b. 600/(600+ 150) c. 575/(575+125) d. 600/(600+ 125)