Chapter 15 Resource Masters - Ithaca Public Schools

Chapter
15
NAME _____________________________ DATE _______________ PERIOD ________
Chapter 15 SAT and ACT Practice (continued)
11. If {x} is defined to be x 2, find the
value of {{3} {5}}.
A 8
B 10
C 12
D 14
E None of these
a b
12. If is defined to be , then
A
B
C
D
E
13. Find the arithmetic mean of
3.4x, 7.3x, and 2.1(x 3).
A 6.3 0.6x
B 1.575 0.45x
C 2.1 0.6x
D 2.025x
E 2.7x
16. (p, q) (m, n) is defined to be
(pm qn, pn qm). If (a, b) (x, y)
(a, b) for all (a, b), then (x, y)
A (0, 0)
B (1, 0)
C (0, 1)
D (1, 1)
E None of these
17–18. Quantitative Comparison
A if the quantity in Column A is greater
B if the quantity in Column B is greater
C if the two quantities are equal
D if the relationship cannot be
determined from the information
given
Column A Column B
17. For all positive integers x,
x x if x is even
x x 1 if x is odd
c
61 65 62 64
14. The arithmetic mean of two numbers
is 2. If twice the smaller number is
added to the larger number, the sum
is 4. Find both numbers.
A 8 and 12
B 6 and 10
C 12 and 16
D 4 and 8
E None of these
15. If //x// is defined to be
x(x 1)(x 2), then / / 8
//
//
2/
/
A 4
B 10
C 20
D 30
E 36
18. For all real numbers x and y,
x * y xy x y
5*x (5) * x
19–20. Refer to the figure below.
19. Grid-In What is the greatest number
of triangles that can be formed using
points on the circle above as vertices of
the triangle
20. Grid-In What is the greatest number
of line segments that can be formed
using points on the circle above as
endpoints
© Glencoe/McGraw-Hill 680 Advanced Mathematical Concepts