1.
Simplify
Assume the denominator is not equal to zero.
A.
B.
C.
D.
Hint
2.
Evaluate (3.2 × 10
-5
)(5.4 × 10
9
). Express the result in scientific notation.
A.
0.1728 × 10
6
B.
17.28 × 10
4
C.
1.728 × 10
3
D.
1.728 × 10
5
Hint
3.
Find a number that when squared equals 484.
A.
None of these is correct
B.
-22 only
C.
22 only
D.
22 or -22
Hint
4.
Which is the graph of
y
= 2.5
x
?
A.
B.
C.
D.
Hint
5.
Which expression describes this pattern of numbers:
4, 16, 64, 256, 1,024.
A.
x
4
B.
4 +
x
C.
4
x
D.
4
x
Hint
6.
Evaluate.
A.
6
B.
8
C.
5
D.
–6
Hint