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Math 105 Sp’08 Instr:Wong, D. Final Exam
Part I - No calculator is allowed.
Show all your work. No work! No credit!
#1
Name:_________________________
3 1  1
Simplify.    
 8 16  2
3pt.
#2
Simplify. 1
3 4
7
2 1
7 5
9
5pt.
#3
3pt.
Write 3.28 as a mixed number. Simplify your answer.
#4
Round 4258.1932 to the nearest
2pt.
(a) tenth
2pt.
(b) thousand ___________________
#5
4pt.
Divide.
16.4  .024
___________________
#6
3pt.
Simplify. (1.2)(0.5)  (2.3)2
#7
5pt.
Simplify. 5  7  (8)  36
#8
3pt.
Refer to the figure.
6 in.
(a) write the area formula of a circle.
(b) find the exact area of the circle. (Express the answer in  ).
(c) find the approximated area of the circle. Use 3.14 for  .
#9
3pt.
3m
Refer to the figure.
5m
(a) Identify the polygon as a square, rectangle, rhombus, or trapezoid.
(b) Find the perimeter.
(c) Find the area.
Math 105 Sp’08 Instr:Wong, D. Final Exam
Part II - The use of a calculator is allowed.
Show all your work. No work! No credit!
#10
5pt.
Write the list of numbers in order from smallest to largest.
0.35 , 30% ,
#11
6pt.
#12
6pt.
Name:_________________________
1/3
For the given proportion, find the unknown number n .
1.28
n

6
0.15
Find each unit price and decide which is the better buy.
Crackers:
$1.19 for 9 ounces
$1.79 for 12 ounces
#13
5pt.
The ratio of a quarterback’s completed passes to attempted passes is 2 to 7.
If he attempted 42 passes, find how many passes he completed.
#14
4pt.
15% or 38.6 is what number?
#15
5pt.
40% of what number is 50?
#16
5pt.
18 is what percent of 48?
#17
6pt.
Find the angle measure of x, y, and z.
#18
4pt.
Find the angle measure of x.
#19
6pt.
Find the unknown length in the right triangle.
Round the answer to the nearest thousandth.
#20
5pt.
Evaluate the expression when x = -3 and y = 4.
5x – y2
#21
4pt.
Simplify the expression.
Use the distributive property to remove parentheses first.
-3(2x + 1) + 5x – 16
#22
2pt.
Solve for x.
x+5=8
#23
4pt.
Solve for x.
3x – 8 = 10