Name the property illustrated by each equation.
1-2 Properties of Real Numbers
Name the sets of numbers to which each
number belongs.
$16:(5
Q, R
$16:(5
Q, R
$16:(5
N, W, Z, Q, R
$16:(5
Q, R
$16:(5
Inverse (+)
$16:(5
Dist.
$16:(5
Assoc. (+)
$16:(5
Inverse
Find the additive inverse and multiplicative
inverse for each number.
±8
$16:(5
$16:(5
N, W, Z, Q, R
12.1
$16:(5
$16:(5
Z, Q, R
±0.25
$16:(5
$16:(5
N, W, Z, Q, R
$16:(5
$16:(5
I, R
Name the property illustrated by each equation.
$16:(5
$16:(5
Inverse (+)
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$16:(5
Dist.
$16:(5
Page 1
$16:(5
$16:(5
1-2 Properties of Real Numbers
$16:(5
$16:(5
CONSTRUCTION Jorge needs two different kinds
of concrete: quick drying and slow drying. The quickdrying concrete mix calls for
SRXQGVRIGU\FHPHQW+HQHHGVWLPHVPRUH
quick-drying concrete and 3 times more slow-drying
concrete than the mixes make.
a. How many pounds of dry cement mix will he
need?
b. Use the properties of real numbers to show how
Jorge could compute this amount mentally. Justify
each step.
a.
b.
$16:(5
SRXQGVRIGU\
cement, and the slow-drying concrete mix calls for
$16:(5
$16:(5
$16:(5
3
Evaluate 8(4 ± 2) .
$16:(5
64
Evaluate a + 3(b + c) ± d, if a = 5, b = 4, c = 3, and
d = 2.
$16:(5
24
GEOMETRY The formula for the area A of a
circle with diameter d is
:ULWHDQ
expression to represent the area of the circle.
Simplify each expression.
$16:(5
$16:(5
$16:(5
$16:(5
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CONSTRUCTION A 10-meter ladder leans
against a building so that the top is 9.64 meters above
the ground. How far from the base of the wall is the
bottom of the ladder?
$16:(5
about 2.66 m
Page 2
$16:(5
1-2 Properties of Real Numbers
CONSTRUCTION A 10-meter ladder leans
against a building so that the top is 9.64 meters above
the ground. How far from the base of the wall is the
bottom of the ladder?
$16:(5
about 2.66 m
eSolutions Manual - Powered by Cognero
Page 3