1.
Solve the equation
x
2
= 0.81.
A.
x
= -0.9 only
B.
x
= 0.9 or
x
= -0.9
C.
none of these is correct
D.
x
= 0.9 only
Hint
2.
Estimate the solution of
to the nearest whole number.
A.
12
B.
11
C.
10
D.
9
Hint
3.
Which set of numbers is a Pythagorean triple?
A.
1-1-2
B.
5-12-13
C.
4-5-6
D.
7-9-10
Hint
4.
Write a Pythagorean triple other than 3-4-5 that is in the 3-4-5 family.
A.
10-24-26
B.
5-12-13
C.
9-12-15
D.
6-8-9
Hint
5.
Determine whether the number
is rational or irrational.
A.
Rational
B.
Irrational
C.
Both
D.
Neither
Hint
6.
In a right triangle,
a
= 14.2 cm and
b
= 13.9 cm. Find
c
. Round to the nearest tenth.
A.
c
= 14.1 cm
B.
c
= 19.9 cm
C.
c
= 0.3 cm
D.
c
= 2.9 cm
Hint
7.
How far apart are (-6, 11) and (4, 5) on the coordinate plane?
A.
16 units
B.
9.4 units
C.
8 units
D.
11.7 units
Hint
8.
Find -
.
A.
12.5
B.
-12.5
C.
-5
D.
5
Hint
9.
On a clear day, the distance in miles that you can see to the horizon is about 1.23 ×
, where
h
represents the height of your eyes above the ground in feet. Estimate the distance you can see if your eyes are 98 feet above ground.
A.
10 miles
B.
13 miles
C.
12 miles
D.
11 miles
Hint
10.
Graph -
on a number line.
A.
B.
C.
D.
Hint
11.
A guy wire is attached to a pole. It is anchored to the ground 5 feet from the base of the pole. If the wire is 18 feet long, how high is the wire attached to the pole?
A.
18.7 feet
B.
16.8 feet
C.
17.3 feet
D.
13 feet
Hint
12.
A unit on the grid of the map of City Zoo is 0.02 mile. Find the distance between the monkey exhibit at (-4, 4) and the lion exhibit at (2, -3).
A.
1.84 miles
B.
0.92 mile
C.
0.18 mile
D.
9.22 miles
Hint