SAT Mc Graw Hill 2011

CHAPTER 16 / PRACTICE TEST I 585

2 2 222 2

16. If x> 0 and x= 5 y,then

(A) 2y

(B)

(C) 4y

(D) 16y

(E) 24y

17. If x> x^2 , which of the following must be true?

I. x< 1

II. x> 0

III. x^2 > 1

(A) I only

(B) II only

(C) I and II only

(D) I and III only

(E) I, II, and III

18. Which of the following represents the distance
    from the midpoint of AB

––

to the midpoint of BC

––

on the number line above?

(A)

(B) 2x− 1

(C) 2x+ 3

(D) 3x+ 1

(E) 4x

32

2

x+

–x– 4 0 x 3 x+ 2

ABC

y 6

xxyy^22 −+= 2

19. P is the center of the circle above and
    PQ=QR.If ∆PQRhas an area of , what is
    the area of the shaded region?
    (A) 36π−
    (B)
    (C)
    (D)
    (E)


20. In a class of 160 seniors, the ratio of boys to
    girls is 3 to 5. In the junior class, the ratio of
    boys to girls is 3 to 2. When the two classes are
    combined, the ratio of boys to girls is 1 to 1.
    How many students are in the junior class?
    (A) 400
    (B) 360
    (C) 200
    (D) 180
    (E) 160

693 π−

993 π−

18 π−9 3

24 π−9 3

93

93

Q

R

P

STOP

If you finish before time is called, you may

check your work on this section only. Do not

turn to any other section of the test.