ANSWER

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Math A Mania
Review Activity
Copyright © 2004 MathBits.com
Algebra
Using
Formulas
Geometry
Statistics
Patterns &
Functions
10
10
10
10
10
20
20
20
20
20
30
30
30
30
30
40
40
40
40
40
50
50
50
50
50
10 points
Subtract 4x2 – 2y2 – 8 from
3x2 +2y2 +7.
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Answer
10 points
A N S W E R:
2
2
-x +4y
+15
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20 points
Find: (2x + 3)(x + 5)
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Answer
20 points
A N S W E R:
2
2x
+ 13x + 15
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30 points
Find the product:
x2(4x4 +2x2 +x)
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30 points
A N S W E R:
6
4x
+
4
2x
+
3
x
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40 points
2
14a bc
Reduce:
3 4
42ab c
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40 points
A N S W E R:
a
2 3
3b c
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50 points
Simplify:
9x 2x  7 x  5


6
3
4
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Answer
50 points
A N S W E R:
23 x  13
12
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10 points
Find the slope of the line
connecting (2,4) to (-4,-3).
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Answer
10 points
A N S W E R:
7
1
1
6
6
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20 points
Find the sum of the exterior
angles of a pentagon.
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20 points
A N S W E R:
360º
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30 points
Find the area of a trapezoid
whose bases are 10 and 14 and
whose height is 8.
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Answer
30 points
A N S W E R:
96 sq. units
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40 points
Write the equation of a circle
whose center is at (-4,2) and
whose radius is 3.
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Answer
40 points
A N S W E R:
2
2
( x  4)  ( y  2)  9
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50 points
Find the area of a circle whose
circumference is 18 .
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50 points
A N S W E R:
81
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10 points
The perimeter of a square is
80 inches. What is the area of
the square?
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10 points
A N S W E R:
400 sq. inches
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20 points
The ratio of the corresponding sides of
two similar triangles is 4:5. What is the
ratio of the corresponding areas?
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20 points
A N S W E R:
16:25
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30 points
Find the distance between the
points (-4,-5) and (1,-2).
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30 points
A N S W E R:
34
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40 points
A baseball diamond is a square with
sides of 90 feet. What is the
shortest distance between first and
third base? (Answer to nearest tenth of a foot.)
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40 points
A N S W E R:
127.3 feet
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50 points
In a cone, if the radius and the
height are doubled, what happens
to the volume of the cone?
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50 points
A N S W E R:
The volume is multiplied by 8.
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10 points
What is the mean for the data set
24, 26, 28, 30,and 40?
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Answer
10 points
A N S W E R:
29.6
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Math
Test
Scores
20 points
(out of 50 pts)
Stem Leaf
3
4
5
56
0225
000
According to this stem
and leaf plot, how
many test scores are in
the 40’s?
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Answer
20 points
A N S W E R:
4
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30 points
Ducky has grades of 84, 65, and 76 on three
math tests. What grade must he obtain on
the next test to have an average of exactly
80 for the four tests?
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30 points
A N S W E R:
95
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40 points
In the box and whisker plot shown, the
median score is 80 and the 3rd quartile
score is 90. Using the letters on the plot,
indicate where the 80 and 90 located?
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Answer
40 points
A N S W E R:
The 80 is at C.
The 90 is at D.
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69-76 (2)
77-84 (2)
85-92 (5)
93-100 (3)
50 points
This table shows the scores received by 12
students on a quiz. Students who received at
least an 85% got a sticker. What percent of
the students received a sticker?
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50 points
A N S W E R:
2
66 %
3
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10 points
Solve for c:
5c - 4 - 2c + 1 = 8c + 2
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Answer
10 points
A N S W E R:
c = -1
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20 points
Solve: 2 - 5x > 3x - 14
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20 points
A N S W E R:
x<2
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30 points
Write the equation of
a line that is parallel to y = 4x + 6
and has a y-intercept of -5.
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30 points
A N S W E R:
y = 4x - 5
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40 points
What is the equation of
the axis of symmetry of the graph
y = 3x2 + 12x - 2 ?
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Answer
40 points
A N S W E R:
x = -2
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50 points
Explain why the graph
of the straight line with slope of -2
and y-intercept of -3 passes through
the point (5,-13).
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Answer
50 points
A N S W E R:
A line of slope -2 and y-intercept -3 has an
equation of y = -2x – 3. Since the point (5,-13)
works in this equation, the point is on the line.
-13 = -2(5) – 3 (true)
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