Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Related questions
Question
![Multiply or divide as indicuted in each of the exercises. Write all
answers in lowest terms. (See Examples 2 and 3.)
10
15.
64
16.
10r+ 16 + 2
14
17.
IR.
In cach of the exercises in the next set, simplify the complex frae
tion. (See Example t)
6by
Za +b
15
4x + 2)
19.
20.
4(2a + b)
Sx + 2)
isp - 3 10p - 2
24 +
22.
. + 12
21.
6
9y - 18 3y + 6
12r + 24, r + 12
24.
23.
6y + 12 15y - 30
3or - 36 -8
2-9
4a + 12
25.
2a - 10 -a - 20
Work these problemes.
or - 18
12r - 16
Natural Science Each figure in the following exercises is a
dartboand. The probability that a dart which hits the board lands
in the shaded arna is the fraction
26.
9 + ir - 24 dr- 12
2-k-6+ 3k -4
27.
P +k- 12 + 24 -3
area of the shaded region
area of the darthoard
2-9
* - 2n - 8 + 7a + 12
29. In your own words, explain how so ind the least common
28.
(a Express the probability as a rational expression in x. (Hint:
Area formulas are given in Appendix B.)
(b) Them reduce the expression to lowest terms.
denominator of two fractions.
A30. Describe the steps required to add theee rational expressions. 51.
You may use an example to illustrate.
52.
Add ar subtract as indicated in each of the following. Write all
answers in lowest terms. (See Example 4)
32. -
34.
3s.
36
37.
39.
Sb + 2)
40.
NA+ 1)
Business In Example 11of Section 1.2, we aw that the cast C
41.
2)
4k - 2)
of producing x thouand cakulatorn is given by
C= -12 + 69Sx + 230,000 (x s 150).
55. Write a rational expression that gives the average cost per
cakulator when x thousand are prodaced. (Hi: The average
cost is the sotal cost C divided by the number of calculators
prodaced)
42.
Mp + 4)
p + 4)
43.
+]
- d+3
44.
w- Jm - 0
56. Find the average cost per cakulator for each of these production
levele 20, SO00, and 125,000](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F043db88b-d1bb-4104-8354-07f6ba20f944%2F299e1ada-073b-4be1-b47a-918a2c7ebbaa%2F2ozk12_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Multiply or divide as indicuted in each of the exercises. Write all
answers in lowest terms. (See Examples 2 and 3.)
10
15.
64
16.
10r+ 16 + 2
14
17.
IR.
In cach of the exercises in the next set, simplify the complex frae
tion. (See Example t)
6by
Za +b
15
4x + 2)
19.
20.
4(2a + b)
Sx + 2)
isp - 3 10p - 2
24 +
22.
. + 12
21.
6
9y - 18 3y + 6
12r + 24, r + 12
24.
23.
6y + 12 15y - 30
3or - 36 -8
2-9
4a + 12
25.
2a - 10 -a - 20
Work these problemes.
or - 18
12r - 16
Natural Science Each figure in the following exercises is a
dartboand. The probability that a dart which hits the board lands
in the shaded arna is the fraction
26.
9 + ir - 24 dr- 12
2-k-6+ 3k -4
27.
P +k- 12 + 24 -3
area of the shaded region
area of the darthoard
2-9
* - 2n - 8 + 7a + 12
29. In your own words, explain how so ind the least common
28.
(a Express the probability as a rational expression in x. (Hint:
Area formulas are given in Appendix B.)
(b) Them reduce the expression to lowest terms.
denominator of two fractions.
A30. Describe the steps required to add theee rational expressions. 51.
You may use an example to illustrate.
52.
Add ar subtract as indicated in each of the following. Write all
answers in lowest terms. (See Example 4)
32. -
34.
3s.
36
37.
39.
Sb + 2)
40.
NA+ 1)
Business In Example 11of Section 1.2, we aw that the cast C
41.
2)
4k - 2)
of producing x thouand cakulatorn is given by
C= -12 + 69Sx + 230,000 (x s 150).
55. Write a rational expression that gives the average cost per
cakulator when x thousand are prodaced. (Hi: The average
cost is the sotal cost C divided by the number of calculators
prodaced)
42.
Mp + 4)
p + 4)
43.
+]
- d+3
44.
w- Jm - 0
56. Find the average cost per cakulator for each of these production
levele 20, SO00, and 125,000
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