1.
Write 3
x
3
y
5
as a multiplication expression.
A.
3 · 3 ·
x
· 5 ·
y
B.
2(3
x
3
y
5
)
C.
(
xy
2
)
3
D.
3 ·
x
·
x
·
x
·
y
·
y
·
y
·
y
·
y
Hint
2.
Select the correct
first
step when using the order of operations.
A.
Evaluate all powers in order from left to right.
B.
Do all operations within grouping symbols starting with the innermost grouping symbols.
C.
Do all additions and subtractions from left to right.
D.
Do all multiplications and divisions from left to right.
Hint
3.
Simplify
a
4
·
a
2
.
A.
a
8
B.
2
a
6
C.
a
6
D.
2
a
8
Hint
4.
A tiny virus has a width of 10
-6
millimeter. How many of the tiny viruses could fit across the head of a pin 1 millimeter in diameter?
A.
1
6
B.
10
6
C.
-6
1
D.
10
-6
Hint
5.
The speed of light is about 3 × 10
8
meters per second. How far would a beam of light travel in 5 seconds? Express the answer in scientific notation.
A.
1.5 × 10
5
m
B.
1.5 × 10
10
m
C.
1.5 × 10
6
m
D.
1.5 × 10
9
m
Hint
6.
Simplify
.
A.
B.
C.
D.
Hint
7.
The square root of 135 is between _____.
A.
11 and 12
B.
13 and 14
C.
12 and 13
D.
10 and 11
Hint
8.
Ilias wants to build a square pond for a fountain in his yard. He wants the area of the square to be as close as possible to 150 square feet, but not over 150 square feet. Find the length in whole feet of the largest square pond that he can build and still have the area be less than 150 square feet.
A.
11.5 feet
B.
13 feet
C.
11 feet
D.
12 feet
Hint
9.
Refer to the diagram below. Which equation correctly states the Pythagorean Theorem that is true for any right triangle?
A.
c
2
+
a
2
=
b
2
B.
c
2
=
a
2
-
b
2
C.
c
2
=
a
2
+
b
2
D.
c
2
+
b
2
=
a
2
Hint
10.
Simplify the expression
.
A.
m
1.625
B.
m
-5
C.
m
5
D.
m
21
Hint
11.
Simplify the expression
g
4
h
-8
j
2
.
A.
B.
C.
D.
Hint
12.
Evaluate the expression
.
A.
4,000
B.
40,000
C.
0.004
D.
0.0004
Hint
13.
Simplify
.
A.
B.
C.
D.
Hint
14.
Find the length of the leg of the right triangle.
A.
5 cm
B.
4 cm
C.
17.7 cm
D.
12.5 cm
Hint