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Chapter 5 Post Test



Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Find the value of mc001-1.jpg.
a.
mc001-2.jpg
b.
mc001-3.jpg
c.
mc001-4.jpg
d.
mc001-5.jpg
e.
mc001-6.jpg
 

 2. 

Replace (?) by an appropriate exponent that makes the statement true.

mc002-1.jpg
a.
mc002-2.jpg
b.
mc002-3.jpg
c.
mc002-4.jpg
d.
mc002-5.jpg
e.
mc002-6.jpg
 

 3. 

Use rules of exponents to simplify the expression mc003-1.jpg using only positive exponents. (Assume that mc003-2.jpg)
a.
mc003-3.jpg
b.
mc003-4.jpg
c.
mc003-5.jpg
d.
mc003-6.jpg
e.
mc003-7.jpg
 

 4. 

Write mc004-1.jpg in scientific notation.
a.
mc004-2.jpg
b.
mc004-3.jpg
c.
mc004-4.jpg
d.
mc004-5.jpg
e.
mc004-6.jpg
 

 5. 

Write mc005-1.jpg in decimal notation.
a.
mc005-2.jpg
b.
mc005-3.jpg
c.
mc005-4.jpg
d.
mc005-5.jpg
e.
mc005-6.jpg
 

 6. 

Determine which of the following expressions are polynomials.

Imc006-1.jpg
IImc006-2.jpg
IIImc006-3.jpg
a.
expression III
b.
expressions I and III
c.
expressions II and III
d.
expression I
e.
expression II
 

 7. 

Find the sum mc007-1.jpg.
a.
mc007-2.jpg
b.
mc007-3.jpg
c.
mc007-4.jpg
d.
mc007-5.jpg
e.
mc007-6.jpg
 

 8. 

Find the difference mc008-1.jpg.
a.
mc008-2.jpg
b.
mc008-3.jpg
c.
mc008-4.jpg
d.
mc008-5.jpg
e.
mc008-6.jpg
 

 9. 

Find the difference mc009-1.jpg.
a.
mc009-2.jpg
b.
mc009-3.jpg
c.
mc009-4.jpg
d.
mc009-5.jpg
e.
mc009-6.jpg
 

 10. 

Find the difference mc010-1.jpg.
a.
mc010-2.jpg
b.
mc010-3.jpg
c.
mc010-4.jpg
d.
0
e.
–6
 

 11. 

Perform the indicated operations and simplify.

mc011-1.jpg
a.
mc011-2.jpg
b.
mc011-3.jpg
c.
mc011-4.jpg
d.
mc011-5.jpg
e.
mc011-6.jpg
 

 12. 

Find an expression for the area of the figure. Assume all angles are right angles.






6x

                       15x
mc012-1.jpg              7.5x



3x

a.
mc012-2.jpg
b.
mc012-3.jpg
c.
mc012-4.jpg
d.
mc012-5.jpg
e.
mc012-6.jpg
 

 13. 

Let F represent the number of female babies born in a certain city and M the number of male babies born in the same city. For the years 2000 to 2006 the number of females born in this city each year can be modeled by mc013-1.jpg and the number of males born in the city can be modeled by mc013-2.jpg. The variable t represents the number of years since 2000, that is, mc013-3.jpg. Add the polynomials to find a model for the total number of babies born in this city for the years 2000 to 2006.
a.
mc013-4.jpg
b.
mc013-5.jpg
c.
mc013-6.jpg
d.
mc013-7.jpg
e.
mc013-8.jpg
 

 14. 

Multiply: mc014-1.jpg
a.
mc014-2.jpg
b.
mc014-3.jpg
c.
mc014-4.jpg
d.
mc014-5.jpg
e.
mc014-6.jpg
 

 15. 

Multiply the polynomials and simplify.

mc015-1.jpg
a.
mc015-2.jpg
b.
mc015-3.jpg
c.
mc015-4.jpg
d.
mc015-5.jpg
e.
mc015-6.jpg
 

 16. 

Use a special product pattern to find the product mc016-1.jpg.
a.
mc016-2.jpg
b.
mc016-3.jpg
c.
mc016-4.jpg
d.
mc016-5.jpg
e.
mc016-6.jpg
 

 17. 

Perform the multiplication mc017-1.jpg and simplify.
a.
mc017-2.jpg
b.
mc017-3.jpg
c.
mc017-4.jpg
d.
mc017-5.jpg
e.
mc017-6.jpg
 

 18. 

Divide: mc018-1.jpg
a.
mc018-2.jpg
b.
mc018-3.jpg
c.
mc018-4.jpg
d.
mc018-5.jpg
e.
mc018-6.jpg
 

 19. 

Simplify the expression mc019-1.jpg. Assume all denominators are nonzero.
a.
mc019-2.jpg
b.
mc019-3.jpg
c.
mc019-4.jpg
d.
mc019-5.jpg
e.
mc019-6.jpg
 

 20. 

A child has a large bag of candy when his older brother arrives to divide the candy. The older brother makes two piles and each time he hands out the candy he places 6 pieces on his pile while he places 5 pieces on his younger brother's pile. He does this t times. Before the older brother had arrived, the younger brother had put 2 pieces of candy in his pocket. After the candy is handed out, the younger brother and older brother have mc020-1.jpg and mc020-2.jpg pieces of candy, respectively, so that the ratio of the number of pieces of candy the older brother has to that of his brother is given by mc020-3.jpg. Complete the table to determine what happens to this ratio as t increases.

mc020-4.jpg
5
15
25
35
45
mc020-5.jpg
     
a.
The ratio appears to approach 0.8 as t increases.
b.
The ratio appears to approach 1.2 as t increases.
c.
The ratio appears to approach 1 as t increases.
d.
The ratio appears to approach 2.4 as t increases.
e.
The ratio decreases as t increases.
 



 
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