1.
is _____.
A.
an integer and rational number
B.
a rational number
C.
a whole number
D.
an integer
Hint
2.
Solve the equation
x
2
= 0.81.
A.
none of these is correct
B.
x
= 0.9 or
x
= -0.9
C.
x
= 0.9 only
D.
x
= -0.9 only
Hint
3.
Suppose you are in a building and your eyes are 1,000 feet above the ground. The distance you can see to the horizon is
where
h
represents the height your eyes are from the ground in feet and
d
is the distance in miles. About how far can you see to the horizon if you estimate
to the nearest whole number?
A.
about 37 miles
B.
about 36 miles
C.
about 39 miles
D.
about 38 miles
Hint
4.
The hypotenuse of a right triangle is 38 meters long, and one of its legs is 15 meters long. Find the length of the other leg.
A.
about 34.9 m
B.
about 52.9 m
C.
about 40.9 m
D.
about 46.4 m
Hint
5.
Write an equation you could use to find the length of the missing side of the right triangle.
A.
22
2
= 7
2
-
b
2
B.
b
2
= 22
2
+ 7
2
C.
7
2
= 22
2
+
b
2
D.
b
2
= 22
2
- 7
2
Hint
6.
Which set of numbers is a Pythagorean triple?
A.
5-12-13
B.
1-1-2
C.
7-9-10
D.
4-5-6
Hint
7.
Graph the ordered pairs (4, 0) and (7, 4). Then find the distance between the points.
A.
3 units apart
B.
5 units apart
C.
2.6 units apart
D.
4 units apart
Hint
8.
The coordinates of points
R
and
S
are (4, 7) and (-1, 2), respectively. What is the distance between the points to the nearest tenth?
A.
4.7 units
B.
7.1 units
C.
5.8 units
D.
5 units
Hint
9.
A square has an area of 1.21 cm
2
. What is the length of each side of the square?
A.
1.1 cm
B.
1.4641 cm
C.
1.05 cm
D.
0.605 cm
Hint
10.
Estimate the length of a side of a square whose area is 262 in
2
.
A.
16 in.
B.
17 in.
C.
15 in.
D.
18 in.
Hint
11.
Sabrina's flying disc was stuck in a tree. In order to get the flying disc down, she used a 25-foot ladder positioned 8 feet from the base of the tree. How high was the flying disc?
A.
about 33 feet
B.
about 68.7 feet
C.
about 23.7 feet
D.
about 17 feet
Hint
12.
Replace ___ with a symbol to make
___ 4
a true sentence.
A.
B.
=
C.
>
D.
<
Hint