TAILIEUCHUNG - Sat - MC Grawhill part 7

The flashcards-although there aren't enough of them-are very cool in pointing out the common errors that students make on SAT I math problems. (I made a bunch of them myself, sad to say.) The McGraw-Hill guide uses a method that really focuses on the reasoning skills that are the basis of the SAT I, AND ACTUALLY TEACHES YOU THOSE SKILLS!! Unless you have looked at all of these books as I have, you don't know how refeshing that is! The "College Hill Lesson" format is incredibly clear and easy to follow, and helps students to actually become better readers, writers. | 50 McGRAW-HILL S SAT 7 7 7 7 7 7 SECTION 7 Time 20 minutes 16 questions Turn to Section 7 of your answer sheet to answer the questions in this section. Directions For this section solve each problem and decide which is the best of the choices given. Fill in the corresponding circle on the answer sheet. You may use any available space for scratchwork. 1. The use of a calculator is permitted. 2. All numbers used are real numbers. 3. Figures that accompany problems in this test are intended to provide information useful in solv- ing the problems. They are drawn as accurately as possible EXCEPT when it is stated in a specific problem that the figure is not drawn to scale. All figures lie in a plane unless otherwise indicated. 4. Unless otherwise specified the domain of any function f is assumed to be the set of all real num- bers x for which f x is a real number. h b A w A 1 2 bh V Cwh V nr2h L Q D A nr2 C 2nr a c2 a2 b2 Special right triangles The number of degrees of arc in a circle is 360. The sum of the measures in degrees of the angles of a triangle is 180. 2 1. The number that is of 60 is what fraction 3 of 80 A - B 3 C 2 D E 2. If 4x 2y 8 then x y A b C 1 D 2 E 4 3 4 8 9 GO ON TO THE NEXT PAGE CHAPTER 2 DIAGNOSTIC SAT 51 7 7 7 7 7 7 3. 29 apples 21 pears and 64 oranges are to be distributed among three baskets with each basket getting an equal number of apples each basket getting an equal number of pears and each basket getting an equal number of oranges. If as much of the fruit as possible is distributed in this way what fruit will remain undistributed A 2 apples 2 pears and 1 orange B 2 apples 1 pear and 1 orange C 2 apples and 1 orange D 1 pear and 1 orange E 1 apple only 4. For all values of x and y let x y be defined by the equation x y x x - 1 y y - 1 . What is the value of 1 2 A 1 B 2 C 3 D 4 E 5 5. In AABC AB 15 and BC 9. Which of the following could not be the length of AC A 5 B 7 C 9 D 16 E 22 7. The average arithmetic mean of x 2 6 and 10 is

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