1.
Which graph matches the following statement?
The outside temperature rises steadily to 85° at 3 p.m., then drops steadily to 65° at 8 p.m..
A.
B.
C.
D.
Hint
2.
Find the difference -3.35 - 6.21.
A.
-2.86
B.
-9.56
C.
9.56
D.
2.86
Hint
3.
Simplify:
A.
7
c
+ 4
B.
c
+ 4
C.
c
+ 28
D.
Hint
4.
Evaluate
when
x
= 15 and
y
= 15.
A.
15
B.
-225
C.
225
D.
-15
Hint
5.
If
y
varies inversely as
x
and
y
= 15 when
x
= 3, find
y
when
x
= 9.
A.
15
B.
3
C.
45
D.
5
Hint
6.
Write the point-slope form of an equation of the line that contains
, which is the hypotenuse of the right triangle.
A.
B.
C.
D.
Hint
7.
The opposite of two thirds of a number
x
is at least 18. What are the possible values of
x
?
A.
{
x
|
x
> -27}
B.
C.
D.
Hint
8.
Simplify (7
a
4
b
) (8
a
7
b
6
).
A.
56
a
11
b
7
B.
15
a
11
b
7
C.
15
a
28
b
6
D.
56
a
28
b
6
Hint
9.
Factor 14
x
2
- 28
y
2
+ 56
A.
14(
x
2
- 14
y
2
+ 42)
B.
14
xy
(
x
- 2
y
+ 4)
C.
14(
x
2
- 2
y
2
+ 4)
D.
(2
x
+ 7
y
+ 2)(7
x
- 4
y
+ 2)
Hint
10.
Solve
x
2
–
x
– 72 = 0.
A.
x
= -8 or
x
= 9
B.
x
= 8 or
x
= -9
C.
x
= -8
D.
x
= 9
Hint
11.
Find
.
A.
B.
C.
D.
Hint
12.
The circle graph shows the percent of Ms. Jackson's students who earned an ''A'' for each of the four grading periods during a school year. If Ms. Jackson taught 150 total students, how many students earned an ''A'' during the fourth quarter?
A.
15
B.
60
C.
48
D.
27
Hint
13.
The circle graph shows the percent of Ms. Jackson's students who earned an ''A'' for each of the four grading periods during a school year. If Ms. Jackson taught 150 total students, how many students earned an ''A'' during the third quarter?
A.
15
B.
60
C.
48
D.
27
Hint
14.
Solve 11
b
= 132.
A.
b
= -12
B.
b
= 1452
C.
b
= -1452
D.
b
= 12
Hint
15.
Write a polynomial to represent the area of a square with a side
x
minus the area of a triangle with a base 2
x
and a height of 5.
A.
4
x
B.
x
2
– 5
x
C.
x
2
– 10
x
D.
x
2
– 2
x
+ 5
Hint
16.
What is the degree of 3
a
– 4
a
2
b
3
+
b
3
– 4
a
b
?
A.
5
B.
1
C.
3
D.
2
Hint
17.
Find the product (3
k
2
– 2
k
)
2
.
A.
9
k
4
– 12
k
3
+ 4
k
2
B.
9
k
4
– 6
k
3
– 4
k
2
C.
9
k
4
– 12
k
3
– 4
k
2
D.
9
k
4
– 6
k
3
+ 4
k
2
Hint
18.
Suppose Tyler sprayed around the house for ants. Which formula would be used to find the number of ants still alive after a certain time if the number of ants was changing exponentially?
A.
cannot be determined from given information
B.
compound interest
C.
exponential growth
D.
exponential decay
Hint
19.
Simplify
. State the excluded values of
x
.
A.
, excluded values are 1 and 3
B.
, excluded value is 3
C.
, excluded value is 3
D.
, excluded values are 1 and 3
Hint
20.
Find
.
A.
B.
C.
D.
Hint