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Barnett, Ziegler, Byleen-College Algebra w/Trig 7e (Homework)

James Finch

Math - College, section 1, Fall 2019

Instructor: Dr. Friendly

Current Score : 4 / 5

Due : Sunday, January 27, 2030 00:00 EST

Last Saved : n/a Saving...  ()

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–/1 –/1 –/1 –/1 –/1
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4/5 (80.0%)

  • Instructions

    Here are some textbook questions from College Algebra with Trigonometry 7/e by Barnett, Ziegler, and Byleen published by McGraw-Hill. Click here for a list of all of the questions coded in WebAssign. This demo assignment allows many submissions and allows you to try another version of the same question for practice wherever the problem has randomized values.

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For this assignment, you submit answers by question parts. The number of submissions remaining for each question part only changes if you submit or change the answer.

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1. –/1 points My Notes
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Perform the indicated operations and simplify.
a - 3a[2 - 2(a + 2)]
Give your answer using the form AaB + Ca + D.
A =
B =
C =
D =
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2. –/1 points My Notes
Question Part
Points
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A video game manufacturer is planning to market a 64-bit version of its game machine. The fixed costs are $780000 and the variable costs are $130 per machine. The wholesale price of the machine will be $160.
(a) How many game machines must be sold for the company to make a profit?
x
(b) How many game machines must be sold for the company to break even?
x
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3. –/1 points My Notes
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1 2
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0/50 0/50
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–/1
 
You are given the following set.
{(-6, 7), (-3, 3), (7, -7), (3, 3), (6, 6)}
If the set defines a function, find the domain. (Select all that apply.)


If the set defines a function, find the range. (Select all that apply.)

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4. –/1 points BZBcat7 3.5.036. My Notes
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Use the given functions f and g to answer the following questions. If you need to enter -∞ or ∞, type -INFINITY or INFINITY.
f(x) = sqrt(x + 1)
g(x) = x - 4

(a) Find f∘g.
Click here to preview your answer. Click here for help with symbolic formatting.

(ii) Find the domain of f∘g.
,

(b) Find g∘f.
Click here to preview your answer. Click here for help with symbolic formatting.

(ii) Find the domain of g∘f.
,
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Use the given function to answer the following questions.
q(x) = x^5/ (x^3 - 8)

(a) Without graphing, find the vertical asymptote. If there is no vertical asymptote, enter NONE.
x =

(b) Without graphing, find the horizontal asymptote. If there is no horizontal asymptote, enter NONE.
y =

(c) Without graphing, find the oblique asymptote. If there is no oblique asymptote, enter NONE.
y =
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