D.
-1/6
8.
Each of the equal sides of an isosceles triangle is 5 inches more than twice the third side. If the
perimeter of the triangle is 55 inches, find the sides of the triangle
A.
9; 9; 9
B.
15; 20; 20
C.
9; 23; 23
D.
30; 20; 20
9.
What is the probability of tossing tails three consecutive times with a two sided fair coin?
A.
½
B.
1/6
C.
¼
D.
1/8
10.
There are three blue crayons, four yellow crayons, two red crayons and one green crayon in a
box. What is the probability of selecting at random, a blue crayon on the first draw?
A.
3/10
B.
2/10
C.
1/10
D.
4/10
11.
If 2(z +6) = 24 then 3z + 9 =
A.
12
B.
15
C.
27
D.
36
12.
Simplify
y
yz
x
y
x
2
6
4
4
2
+
A.
y
z
x
x
2
3
2
4
2
+
B.
z
C.
2y
D.
x
2
(2+3x
2
z
)