Questions on Algebra: Absolute value answered by real tutors!

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Algebra: Absolute value

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Question 166317: Find the possible value or values of r in the quadratic equation r2-7r-8=0
Click here to see answer by stanbon(26297)

Question 166352: Perform the indicated operation. Write the resulting polynomial in standard form.
(-5x^6 - 13x^5 - 19) + (3x^6 + 9x^5 + 3)
o -2x^6 - 4x^5 + 22
o -22x^11
o -2x^6 + 14x^5 + 22
o -2x^6 - 4x^5 - 16
Click here to see answer by jim_thompson5910(13794)

Question 160855: This is a problem we had on an algebra test 2y-3=absolute value of -15 pretty sure the answer is nine, but my math teacher says 9,-6

Click here to see answer by Alan3354(6097)

Question 167353: abs l 1/2x +2l = l 3/4x -2 l Find the solution set for the equation
Click here to see answer by stanbon(26297)

Question 167368: 5[r+3]>5
Click here to see answer by midwood_trail(310)

Question 167482: -[3+4]+[-5]+[6-10]=
Click here to see answer by midwood_trail(310)

Question 167745This question is from textbook
: I am working on a chapter on equations with absolute value. I am getting fustrated with this one problem...please help.
3+/4t-1/=8
I have come up with one of the answers as being 3/2 but the other answer I am not getting. The book has the other answer being -1 and I am coming up with
-5/2.This question is from textbook

Click here to see answer by jim_thompson5910(13794)

Question 167751This question is from textbook
: I am working on equations with absolute value and I need help with this word problem, please.
The problem reads:
The number of U.S. teenagers in the age category "15-19-years olds" during any year between 1980 and 1998 can be modeled approximately by
T=332/x-11.5/+17000
where T is the number of "15-19-years-olds" in thousands and x is the number of years since January 1, 1980 (U.S. Census Bureau, Current Poplulatioin Reports.) Use the model to determine the year in which the number of 15-19-year olds in the U.S. was 18,700,000 (18,700 thousands).
The book comes up with the answer of 1986 and 1996, I cant even come close to them years....please help. ThanksThis question is from textbook

Click here to see answer by jim_thompson5910(13794)

Question 167930: Write an absolute value inequality that represents all numbers n that are more than 3 units from -2. Thanks -Sandy
Click here to see answer by Katie456(1)

Question 168013: why is it impossible for the absolut value of a number to be negative?
Click here to see answer by gonzo(654)

Question 168119: three consecutive intergers whose sum is 99
Click here to see answer by oscargut(682)

Question 168301: FIND THE PERMITER OF A triangle POSTAGE STAMP with sides 3.1, 2 and 3.8
Click here to see answer by jojo14344(1483)

Question 168548: what is the absolute value of 11x-7 <-4 or [11x-7] <-4 I am so lost in this class i know have to do the same to both sides but where to start is my issue
Click here to see answer by jim_thompson5910(13794)

Question 168566: For hydrogen to be liquid, its temperature must be within 2 degrees of -275. What inequality in absolut value represents the temperatures at which hydrogen will NOT be liquid?
Please show work & explain.
Thank you so much for helping me!
Click here to see answer by mathishard2do(2)

Question 168899: Solve |7x-4| = 10
Click here to see answer by Electrified_Levi(103)

Question 168929: Translate the statement into an equation (multiple choice):
"An unknown number is 27 units from zero"
A)
B)
C)
D)
I think it's B, but I'm not sure. Thanks...
Click here to see answer by scott8148(3385)

Question 169368: I have come to a point in solving : is this function one-to-one, where the absolute value of a = the absolute value of b. Can this be one to one?
For the record, the problem states: f(x)= |x| - 2
I assigned a and b, and equal them to each other.
|a| - 2 = |b| - 2 ; add two to both sides
|a| = |b|
therefore a = b? or not really? Thank you for your help!!
Click here to see answer by Edwin McCravy(2922)

Question 171505: X - 10%=180
THIS IS AN EXAMPLE. TOTAL PRICE MINUS 10% EQUALS 180.HOW DO YOU FIND OUT THE START NUMBER AND HOW MUCH THE 10% IS?
Click here to see answer by stanbon(26297)

Question 171505: X - 10%=180
THIS IS AN EXAMPLE. TOTAL PRICE MINUS 10% EQUALS 180.HOW DO YOU FIND OUT THE START NUMBER AND HOW MUCH THE 10% IS?
Click here to see answer by solver91311(5072)

Question 171637: Please solve this inequasion for me!!! |x+2|/|x-3|≤2
Click here to see answer by stanbon(26297)

Question 171718: I need to know how to graph the equations y= -|x-1|+6 and y=3, i guess by using substitution or elimination. That is one problem, not 2 seperate problems. Thanks alot!
Click here to see answer by stanbon(26297)

Question 172113: x/2+3=8
Click here to see answer by Alan3354(6097)

Question 172263: 5 is greater than or equal to the absolute value of (3+2m)
Click here to see answer by Earlsdon(4900)

Question 172641: solving open sentences involving absolute value

Click here to see answer by Alan3354(6097)

Question 173314This question is from textbook Saxon Algebra 2
: Solve 4|3x|-5 is less than or equal to 5This question is from textbook Saxon Algebra 2

Click here to see answer by jim_thompson5910(13794)

Question 173700: |4a+3|is less than or equal to 5
Click here to see answer by solver91311(5072)

Question 173700: |4a+3|is less than or equal to 5
Click here to see answer by gonzo(654)

Question 173927: Can you please help me on what the graph would look like for y=x squared minus 3
Click here to see answer by jojo14344(1483)

Question 173926: Can you please help me on what the graph would like like for f(x)= absolute value x+3
Click here to see answer by jojo14344(1483)

Question 9815: What are the next three terms in this sequence?
12,17,22,27,32,...
Click here to see answer by bob123132(33)

Question 172028: |2x-5|/|2x-1|<1/2 I need you to list solution in interval notation pls. Tnx
Click here to see answer by Edwin McCravy(2922)

Question 174191This question is from textbook algebra 1
: solve each equation or inequality
|2x-6|=81This question is from textbook algebra 1

Click here to see answer by jim_thompson5910(13794)

Question 174190This question is from textbook algebra 1
: solve each equation or inequality
|x+142|=81This question is from textbook algebra 1

Click here to see answer by jim_thompson5910(13794)

Question 174185This question is from textbook algebra 1
: Solve each absolute value equation
|2x-5|-12=-5This question is from textbook algebra 1

Click here to see answer by jim_thompson5910(13794)

Question 174184This question is from textbook algebra 1
: Solve each absolute value equation
|2x-5|=-5This question is from textbook algebra 1

Click here to see answer by jim_thompson5910(13794)

Question 174186This question is from textbook algebra 1
: Solve each absolute value equation
|8-3x|=2This question is from textbook algebra 1

Click here to see answer by jim_thompson5910(13794)

Question 174182This question is from textbook algebra 1
: Solve each absolute value equation
b.|3x-7|=16This question is from textbook algebra 1

Click here to see answer by jim_thompson5910(13794)

Question 174181This question is from textbook algebra 1
: Solve each absolute value equation
a. |x-5|=3This question is from textbook algebra 1

Click here to see answer by jim_thompson5910(13794)

Question 174311: To solve [5x-2]>4 split the equation into _____.
Click here to see answer by solver91311(5072)

Question 174312: The solution set of [x-6]=4 is______.

-2 or 2
-2 or 10
2 or -10
2 or 10

Click here to see answer by jim_thompson5910(13794)

Question 174310: [2x+4]<8 has a solution set of _____.
Click here to see answer by jim_thompson5910(13794)

Question 174309: The solution set of [4x-3]>5 is_____
Click here to see answer by jim_thompson5910(13794)

Question 174309: The solution set of [4x-3]>5 is_____
Click here to see answer by solver91311(5072)

Question 174537: I require assistance solving this absolute value equation:
12=-4|k|
Click here to see answer by rapaljer(3625)

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