# Precalculus: Real Mathematics, Real People

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PRECALCULUS: REAL MATHEMATICS, REAL PEOPLE, 7th Edition, is an ideal student and instructor resource for courses that require the use of a graphing calculator. The quality and quantity of the exercises, combined with interesting applications and innovative resources, make teaching easier and help students succeed. Retaining the seriesa emphasis on student support, selected examples throughout the text include notations directing students to previous sections to review concepts and skills needed to master the material at hand. The book also achieves accessibility through careful writing and designaincluding examples with detailed solutions that begin and end on the same page, which maximizes readability. Similarly, side-by-side solutions show algebraic, graphical, and numerical representations of the mathematics and support a variety of learning styles. Reflecting its subtitle, this significant revision focuses more than ever on showing students the relevance of mathematics in their lives and future careers. Important Notice: Media content referenced within the product description or the product text may not be available in the ebook version.A circle has a radius of 4 inches. Find the length of the arc intercepted by a central angle of 240Ad, as shown in Figure 4.10. Solution To use the formula s = rIc first convert 240Ad to radian measure. 240Ad = (240 deg)(Irad180deg) = 4I3radiansanbsp;...

 Title : Precalculus: Real Mathematics, Real People Author : Ron Larson Publisher : Cengage Learning - 2015-01-01