1.
Which of the following sentences is true?
A.
when
x
= 4.
B.
3
x
+ 5 <
x
2
when
x
= 4.
C.
when
x
= 5.
D.
when
x
= 6.
Hint
2.
Find the solution of 4
x
+ 10 = 42
if the replacement set is {6, 7, 8, 9}.
A.
7
B.
9
C.
8
D.
6
Hint
3.
Find the solution of 4
x
+ 10 = 42
if the replacement set is {6, 7, 8, 9}.
A.
7
B.
8
C.
9
D.
6
Hint
4.
Find the solution of 2(
x
– 5) = 30
if the replacement set is {19, 20, 21, 22}.
A.
20
B.
19
C.
22
D.
21
Hint
5.
Solve
=
x
.
A.
x
= 0
B.
x
= 5
C.
x
= 10
D.
x
= 25
Hint