1.
In the expression 2
5
, 5 is called the _____.
A.
square root
B.
perfect square
C.
exponent
D.
base
Hint
2.
The expression 5 can be written using exponents as _____.
A.
5
1
B.
1
5
C.
5
0
D.
1(5)
Hint
3.
Simplify the expression (-
x
2
y
3
)(5
xy
4
).
A.
-10
x
3
y
7
B.
-10
x
2
y
12
C.
-5
x
2
y
12
D.
-5
x
3
y
7
Hint
4.
Simplify the expression
A.
3
6
B.
3
4
C.
1
6
D.
3
10
Hint
5.
Simplify the expression
c
-1
d
.
A.
B.
C.
D.
Hint
6.
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.
10
6
B.
-6
1
C.
10
-6
D.
1
6
Hint
7.
A whole number that has exactly two factors, the number itself and 1, is called a ______.
A.
square number
B.
radical number
C.
composite number
D.
prime number
Hint
8.
Which square root from the list below is closest to 14?
A.
B.
C.
D.
Hint
9.
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.
13 feet
B.
12 feet
C.
11.5 feet
D.
11 feet
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 same number of spaces as the number in the exponent
D.
to the right by the number of spaces as the number in the exponent minus 1
Hint
11.
Express 8 micrograms in scientific notation.
A.
8 × 10
-9
grams
B.
8 × 10
6
grams
C.
8 × 10
-6
grams
D.
8 × 10
9
grams
Hint
12.
Simplify the expression
.
A.
9
B.
3
C.
27
D.
8
Hint
13.
If c is the measure of the longest side of a triangle and
c
2
=
a
2
+
b
2
, then ___________________.
A.
the triangle is an isosceles triangle
B.
the triangle is not a right triangle
C.
the triangle is a right triangle
D.
the triangle is not an isosceles triangle
Hint
14.
Find the height of the window to the nearest tenth of a foot.
A.
7.5 ft
B.
19 ft
C.
13.6 ft
D.
4.4 ft
Hint