1001 Algebra Problems.PDF

76.Which of the following decimals is between
–0.01 and 1.01?
a.–0.015
b.–0.005
c.1.5
d.1.15

77.Which of the following decimals is equivalent
to ^58 – ^25 ?
a.–0.25
b.0.225
c.0.25
d.0.275

78.(3.09 1012 )3 =

a.1.03 104

b.3.09 104

c.1.03 1012

d.1.033.33^12

79.0.00000321 is equivalent to which of the
following?
a.3.21 10 –6
b.3.21 10 –5
c.3.21 106
d.3.21 105

80.What percentage of^89 results in ^13 ?

a.^13 %

b.29.6%

c.37.5%

d. 40 ^13 %

Set 6 (Answers begin on page 159)

This set contains problems that focus on evaluating

algebraic expressions at numerical values.

81.What is the value of the expression –2x^2 + 3x–

7 when x= –3?

a.–34

b.–27

c.–16

d.–10

e. 2

82.What is the value of the expression a (^27) +aa
when a= –2?
a.–14
b.–7
c.–^74 
d.^74 
e. 7
83.What is the value of the expression 2ax– z
when a= 3,x=6, and z=–8?
a. 28
b. 44
c. 288
d. 20
84.Ify= –x^3 + 3x–3, what is the value ofy
when x= –3?
a.–35
b.–21
c. 15
d. 18
e. 33

• PRE-ALGEBRA FUNDAMENTALS–