Download Math 60 ~ Activity

Math 60 ~ Work Sheet
Sec. 1.3 & 1.4
3
1
1. Given x   , y  , w  2, z  8 simplify the expressions.
4
5
7
x  4y
a) 4x 2 
b)
2
z
1
z 
 w
13
13
of the adult female population smoked and
of the adult male
60
50
population smoked. What fraction of the adult population smoked in 2002?
2. In 2002 roughly
3. Find the area of the given rectangles.
a)
2
6
b)
12
4
c)
l
w
4. Find an expression for the perimeter and area of the rectangle given. Make sure to simplify
the expressions.
a) The length is twice the sum of the width and 4.
b) l  2 x2  1, w  x 2  3
5. Use set-builder notation (or the roster method depending on appropriateness), interval
notation and a number line to describe the following sets.
a) The set of prime numbers greater than 4 and less than or equal to 23.
Set-builder/roster method
Interval Notation
Number Line
___________________________________
b) The set of real numbers greater than or equal to -3.7 and less than 14.8.
Set-builder/roster method
Interval Notation
Number Line
___________________________________
c) The set of real numbers less than -5.
Set-builder/roster method
Interval Notation
Number Line
___________________________________
6. Let the sets A, B, and C be defined as the following: A  m, a, t , h, e, i, c, s ,
B  h, i, s, t , o, r, y , and C  l , i, t , e, r, a, u .
a) Find B  C _____________________________________
b) Find  C  A  B __________________________________
7. In a group of 190 college freshmen who had participated in athletics or music in high school,
120 had participated in athletics and 105 in music. How many had participated in both?