SAT2数学真题（第1套)calculator-assistive-technology【GHOE】

Mathematics TestCalculator38 QuestionsTurn to Section 4 of your answer sheet to answer the questions in this section.DirectionsFor questions 1 through 30, solve each problem, choose the best answer from the choices provided, and fill in the corresponding circle on your answer sheet. For questions31through38, solve the problem and enter your answer in the grid on the answer sheet.Notes1.The use of a calculator is permitted.2.All variables and expressions used represent real numbers unless otherwise indicated.3.Figures provided in this test are drawn to scale unless otherwise indicated.4.All figures lie in a plane unless otherwise indicated.5.Unless otherwise indicated, the domain of a given functionfis the set of all real numbersxfor which f of xis a real number.ReferenceBegin skippable figure descriptions.The figure presents information for your reference in solving some of theproblems.Reference figure 1 is a circle with radiusr. Two equations are presented below reference figure1.Aequals pi times the square ofr.Cequals 2 pir.Reference figure 2 is a rectangle with lengthand widthw. An equation is presented below reference figure2.Aequalsw.Reference figure 3 is a triangle with base band height h. An equation is presented below reference figure3.Aequals onehalfbh.Reference figure 4 is a right triangle. The two sides that form the right angle are labeledaandb, and the side opposite the right angle is labeledc. An equation is presented below reference figure4.csquared equalsasquared plusbsquared.Special Right TrianglesReference figure 5 is a right triangle with a 30degree angle and a 60degree angle. The side opposite the 30degree angle is labeledx. The side opposite the 60degree angle is labeledxtimes the squareroot of3. The side opposite the right angle is labeled2x.Reference figure 6 is a right triangle with two 45degree angles. Two sides are each labeleds. The side opposite the rightangle is labeledstimes the squareroot of2.Reference figure 7 is a rectangular solid whose base has lengthand widthwand whose height ish. An equation is presented below reference figure7.Vequalswh.Reference figure 8 is a rightcircularcylinder whose base has radiusrand whose height ish. An equation is presented below reference figure8.Vequalspitimes the square ofrtimesh.Reference figure 9 is a sphere with radiusr. An equation is presented below reference figure9.Vequalsfourthirds pi times the cube ofr.Reference figure 10 is a cone whose base has radiusrand whose height ish. Anequation is presented below reference figure10.Vequals onethird times pi times the square ofrtimesh.Reference figure 11 is an asymmetrical pyramid whose base has lengthand widthwand whose height ish. An equation is presented below reference figure11.Vequalsonethirdwh.End skippable figure descriptions.Additional Reference InformationThe number of degrees of arc in a circle is360.The number of radians of arc in a circle is 2pi.The sum of the measures in degrees of the angles of a triangle is180.69精品文档Question 1 refers to the following figure.Begin skippable figure description.The figure presents a line graph in a coordinate plane. The horizontal axis is labeled “Time” in minutes, and the vertical axis is labeled “Target heart rate” in beats per minute. Numbers 0 through 100, in increments of 10, appear along the horizontal axis, and there are vertical gridlines at those numbers. Numbers 40 to 160, in increments of 40, appear along the vertical axis, and there are three horizontal gridlines at 80, 120, and 160. The line graph is divided into three disjointed pieces over three intervals: 0 to 40minutes, 40to74minutes, and 74 to 100minutes.Over the interval from 0 to 40minutes, the line graph moves upward and to the right from 65beats per minute at 0minute, until reaching 80beats at 9minutes. It then moves horizontally, staying at 80beats per minute until 32minutes. The graph then moves downward and to the right, ending at 75beats per minute at 40minutes.Over the interval from 40 to 74minutes, the line graph moves upward and to the right from 95beats per minute at 40minutes, until reaching 120beats per minute at 50minutes. It then moves downward and to the right, until reaching 95beats per minute at 62minutes. The graph then moves upward and to the right, until reaching 120beats per minute at 66minutes. The graph then moves horizontally, ending at 120beats at 74minutes.Over the interval from 74 to 100minutes, the line graph moves upward and to the right from 140beats per minute at 74minutes, until reaching 160beats per minute at 85minutes. It then moves horizontally, staying at 160beats per minute until 92minutes. The graph then moves downward and to the right, ending at 110beats per minute at 100minutes.End skippable fig