1.
In the expression 2
3
, 2 is called the _____.
A.
base
B.
perfect square
C.
exponent
D.
square root
Hint
2.
Select the correct
first
step when using the order of operations.
A.
Do all operations within grouping symbols starting with the innermost grouping symbols.
B.
Do all additions and subtractions from left to right.
C.
Evaluate all powers in order from left to right.
D.
Do all multiplications and divisions from left to right.
Hint
3.
Simplify
a
4
·
a
2
.
A.
2
a
8
B.
2
a
6
C.
a
8
D.
a
6
Hint
4.
Simplify the expression
A.
3
6
B.
3
10
C.
3
4
D.
1
6
Hint
5.
The rule for negative exponents states that
Which statement is
not
a correct use of this rule?
A.
B.
C.
D.
10
-1
= 1
Hint
6.
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
9
m
B.
1.5 × 10
6
m
C.
1.5 × 10
10
m
D.
1.5 × 10
5
m
Hint
7.
Which square root from the list below is closest to 14?
A.
B.
C.
D.
Hint
8.
Refer to the diagram below. A square with a side length of 6 inches is shown. Find the length
d
of the diagonal. Round to the nearest tenth of an inch, if necessary.
A.
17.0 in.
B.
8.5 in.
C.
6 in.
D.
12 in.
Hint
9.
Write 4
-8
using positive exponents.
A.
8
4
B.
4
8
C.
D.
Hint
10.
The rule for multiplying by powers of 10 states that if the exponent of the 10 is negative, then you move the decimal point __________.
A.
to the left by the same number of spaces as the number in the exponent
B.
to the right by the number of spaces as the number in the exponent plus 1
C.
to the right by the number of spaces as the number in the exponent minus 1
D.
to the right by the same number of spaces as the number in the exponent
Hint
11.
Simplify the expression
.
A.
13
B.
17
C.
12
D.
9
Hint
12.
Simplify
.
A.
B.
C.
D.
Hint
13.
To fertilize the crops on the farm he works at, Omari has to use no less than the fertilizer recommended for 262 yd
2
of land. If the field has the same width and length, that are a whole number of yards long, how long is the field?
A.
19 yd
B.
18 yd
C.
17 yd
D.
16 yd
Hint
14.
If c is the measure of the longest side of a triangle and
c
2
=
a
2
+
b
2
, then ___________________.
A.
the triangle is a right triangle
B.
the triangle is not a right triangle
C.
the triangle is not an isosceles triangle
D.
the triangle is an isosceles triangle
Hint