Friday
April 24, 2015

# Posts by shawn

Total # Posts: 498

Math
I am kinda stuck on this one Simplify: ^5sqrt x^7 y^4 I don't know what to do for this problem. I am lost with what to do with the exponents when you have a number on the outside.
October 26, 2008

Math
Okay I understand thank you both.
October 26, 2008

Math
is it x-4
October 26, 2008

Math
Simplify: sqrt x^2-8x+16 I know that this can be factored out to sqrt (x-4)(x-4) what do i do next?
October 26, 2008

Math
Simplify: square root of 25a^2 I have the answer as 5a is that right?
October 26, 2008

Math help
the symbol ã should be the square root symbol
October 26, 2008

Math help
Simplify: ^3ã-216/(x^9) I have the answer as -6/(x^3) Is that right?
October 26, 2008

Math
square root 63 I have the answer as 3square root 7
October 26, 2008

Math
Simplify: ã63 I have the answer as 3ã7 is that right?
October 26, 2008

Math check 4
I tried it again I think it is 0,6/5 is that right?
October 12, 2008

Math check 4
Okay I tried it again. I came up with 0,12/5 is that right?
October 12, 2008

Math check 4
Find the y-intercepts for the function given by: f(x)= 4/(x+5)-1/(x-4)/2/(x-3)+3/(x+2) Math check - Damon, Sunday, October 12, 2008 at 5:56pm The y axis intercepts are the values of the function when x = 0 4/5 - [(1/-4)] / [(2/-3)] + 3/2 Math check - shawn, Sunday, October 12...
October 12, 2008

Math
Solve: 3/(9x-6)=5/(7x+1) I have the answer of 11/8 it is probably wrong.
October 12, 2008

Math check 3
Simplify: 9/(y+8)-y/(y-2)+(y^2+4)/(y^2+6y-16) IS the answer y-14/(y-2)(y+8)?
October 12, 2008

Math check
Is it 0,63/50
October 12, 2008

Math check
Find the y-intercepts for the function given by: f(x)= 4/(x+5)-1/(x-4)/2/(x-3)+3/(x+2) I am stuck
October 12, 2008

Math
Thanks so much
October 12, 2008

Math
Simplify: (X^2+X-2)/(X^2-9)/(X^2-6X-16)/(X^2-6X+9) I have the answer as (X-3)(X-1)/(X-8)(X+3) is this right?
October 12, 2008

Math check
subtract and simplify: 4a^2/(a-b)- (4b^2-8ab)/(b-a) I have the answe as 4(a-b) is this correct?
October 12, 2008

Math check 3
f(x) = 1/(x+7)+15/(x-8). Find all a for which f(a)=f(a+15). I understand this so far f(a)=f(a+15) 1/(7+a) + 15/(a-8) = 1/(a+22) + 15/(a+7) I have multiplied the LCD of (a-8)(a+7)(a+22)by both sides with no luck. This is a multiple choice question a.) -161/8 b.) 120/7 c.) 161/7...
October 12, 2008

math check question
Subtract and Simplify: 4a^2/(a-b)-(4b^2-8ab)/(b-a) I have the answer as 4(a+b)^2/(a-b) or should it be 4(a-b)^2/(a-b) Responses Math problem check - bobpursley, Sunday, October 12, 2008 at 4:23pm just the numerator.. 4a^2-8ab + 4b^2, right? 4(a-b)^2 Now does that reduce with ...
October 12, 2008

Math problem check
What about 4a^2/(a-b)-(4b^2-8ab)/(b-a) I thought that you would multiple the second part of the equation by -1 -(4b^2-8ab)/(b-a) to get the common LCD of a-b So I thought the equation would be 4a^2/(a-b) + (4b^2 + 8ab)/(a-b) I have the answer as 4(a+b)^2/(a-b)
October 12, 2008

Math problem check
Okay I have the answer as 4(a-b) is that right
October 12, 2008

Math problem check
Subtract and Simplify: 4a^2/(a-b)-(4b^2-8ab)/(b-a) I have the answer as 4(a+b)^2/(a-b) or should it be 4(a-b)^2/(a-b)
October 12, 2008

Math problem check
Simplify: (2/a + 6/b) / (8/ab + 4/a^2) I have the answer as a(3a+b)/(4a+2b) Is that correct?
October 12, 2008

Word problem check
Thank you
October 12, 2008

Word problem check
one summer, Van mowed 4 lawns for every 7 lawns mowed by Fiona. Together they mowed 132 lawns. How many did Fiona mow? I have the answer as 84 is that correct?
October 12, 2008

Math problem still stuck
So you are saying that it is none of the multiple choice answers of -161/8 120/7 161/7 or -17 ?
October 12, 2008

Math problem still stuck
When I plug in the values what am I looking to find?
October 12, 2008

Math problem still stuck
Let f(x) = 1/(x+7)+15/(x-8). Find all a for which f(a)=f(a+15). I understand this so far f(a)=f(a+15) 1/(7+a) + 15/(a-8) = 1/(a+22) + 15/(a+7) I have multiplied the LCD of (a-8)(a+7)(a+22)by both sides with no luck. This is a multiple choice question a.) -161/8 b.) 120/7 c.) ...
October 12, 2008

Math check 2
I got it thanks
October 12, 2008

Math check 2
Solve: (t+24)/(t^2-t-56)+7/(t-8)=3/(t+7) I do know that (t^2-t-56) can be factored out to (t-8)(t+7) so I have the equation as (t+24/(t-8)(t+7) +7(t+7)/(t-8)(t+7)-3(x-8)/(t-8)(t+7) (t-24) + 7(t+7)=3(t-8) solve for t. The choices are: a.)-97/5 b.)122/5 c.)-13 d.)-13/5 Math ...
October 12, 2008

math check
Thank you
October 12, 2008

math check
I have a problem that I need checked it is the produce of the reciprocals of two consecutive integes is 1/182 Find the integers. I have as the answer -13,-14 or 13,14 is this correct?
October 12, 2008

Math word problem
Thank you I have the answer as 10km/h.
October 12, 2008

Math assistance needed
Thank You. I understand.
October 12, 2008

Math assistance needed
a.)-97/5 is the answer I get is that correct?
October 12, 2008

Math assistance needed
Solve: (t+24)/(t^2-t-56)+7/(t-8)=3/(t+7) I do know that (t^2-t-56) can be factored out to (t-8)(t+7) so I have the equation as (t+24/(t-8)(t+7) +7(t+7)/(t-8)(t+7)-3(x-8)/(t-8)(t+7) is this correct ot what am I doing wrong? I don't understand the rest so multipy both sides ...
October 12, 2008

a problem
Solve: (t+24)/(t^2-t-56)+7/(t-8)=3/(t+7) How do I solve this problem
October 12, 2008

a problem
Solve: (t+24)/(t^2-t-56)+7/(t-8)=3/(t+7) I do know that (t^2-t-56) can be factored out to (t-8)(t+7) so I have the equation as (t+24/(t-8)(t+7) +7(t+7)/(t-8)(t+7)-3(x-8)/(t-8)(t+7) is this correct ot what am I doing wrong?
October 12, 2008

Solve
Okay I understand it now I have to make them have the same denominators so I multiply 1/C by the numerator and denominator by C2 so it would be C2/(C2*C) and the other part is 1/C2 times C which would be C/(C2*C) which would make the problem 1/C1= C2-C/(C2*C) what do I do next?
October 12, 2008

Solve
Yes, I am still having problems with this problem. I understand this part 1/C1 = 1/C - 1/C2 but I don't understand this part: (C2 - C)/(C*C2)
October 12, 2008

Solve
Solve 1/C=1/C1 + 1/C2 for C1 This multiple choice and the listed answers are: a.)C1= CC2/(C2-C) b.)C1= C-C2/C c.)C1= C+C2/CC2 d.)C1= C+C2/C2
October 12, 2008

Math another problem
Solve 1/C=1/C1+1/C2 for C1.
October 12, 2008

Math
Solve: (t+24)/(t^2-t-56)+7/t-8=3/t+7
October 12, 2008

Statistics
A sample of 64 observations is selected from a normal population. the sample mean is 215 and the standard deviation is 15. conduct the following test of hypothosis using the .3 significance level. Ho:u > or = 220 H1: u < 220 a) Is this a 1 tailed or 2 tailed test? b) ...
October 3, 2008

college algebra
h(x)=3xsquared+5x-3
September 20, 2008

math
divide.x^4+x^2-80/x+3
August 24, 2008

math
subtract. 5y^2+2y-9 from 10y^2+3y+5
August 24, 2008

math
solve for x 2(x-5)^2=3
August 9, 2008

axia
peer review appendix g
July 16, 2008

Statistics
Create a Histogram of the following data: Interval Frequency 0 – 5 0 5 - 10 5 10 - 15 5 15 - 20 15 20 - 25 5 25 – 30 10
May 10, 2008

graphing
Determine whether the graphs of the two lines are parallel. y+3=3x 6x-y=-3 Are the graphs of the given equations parallel?
April 20, 2008

Discuss the purpose of journals and professional papers. Discuss the organization of a technical scientific paper.
April 4, 2008

algebra 2
nevermind i got it yea thank you i can do it
March 23, 2008

algebra 2
whats the up arrow thingy mean?
March 23, 2008

algebra 2
opps its log(base2) (x+2)= log(base2) x squared
March 23, 2008

algebra 2
log(base 2) (x=2)= log(base 2)x squared
March 23, 2008

algebra 2
log[little 3] (2x-1)=3
March 23, 2008

science
evidnce for evolution
March 9, 2008

chem
The accepted value for the universal gas constant is 0.0821 L atm/mol K. Wat would it be if the pressure was measured in torr and the volume in milliliters?
February 27, 2008

Chem
i need help getting the equation? i missed a couple of days and im so lost
February 27, 2008

us history
what types of job did women have in the era of reform.
February 11, 2008

management of Information Systems
Create a table that list the strengths and challenges of traditional systems development life cycle, prototyping, rapid application development, and end user system development life cycle."
January 31, 2008

science
During the month of November, it rained on 12 of the 30 days. It also snowed on 3 days. On what percent did it rain? On what percent of days did it snow?
January 23, 2008

law
hi, im having trouble thinking of my own laws. can someone help me out. thank you very much. Some examples: Cell ban in cars, raising lowering an age limit (driving, voting retirement etc.)
September 17, 2007

math
Let X be the population 5 years ago. X*(1.8) = 18,000 X = 10,000
September 3, 2007

last problem for checking
|-8z+4| = 20 z = -2 Again the book's anwser is -2, 3 Apparently I am missing a step. What is it?
August 22, 2007

|4x-6| = 26 my answer is 5 The book's answer is 8, -5 How did they get that. What did i miss?
August 22, 2007

grasping algebra concepts
My book is showing the solution for graphing a system of linear equations y > 2x - 7 y is greater than or equal to -3x + 7 I see the way they graphed it and both lines intersect at one point. Did the just find -7 and +7 on the line in order to graph or did they solve for y ...
August 22, 2007

science
what instrument is used to measure lenght answer is ten letters A meter stick can measure length.
August 21, 2007

quick question regarding equations
I know there are methods out there but what do you think is the best or easiest method(s) of solving a system of equations. Depends on the coefficients of the equation. If in one of the equations I can solve for one of the variables without having to express it in fractions, I...
August 14, 2007

Weird question
Why is the line of the inequality solid when <= or >= and dotted when < or >? It is a representation. If <=, the equal says the values can be on the line. If dotted, they cannot be on the line, but only < or > (ie, dotted means values on either side of the...
August 8, 2007

Algebra
Find two consecutive even integers that have a sum of 450. 224+226=450 If two consecutive even integers, x and x + 2, add up to 450, then 2x + 2 = 450 2x = 448 x = 224 is the smallest of the two. Okay thanks.
August 4, 2007

GENERAL CHEMISTRY
CALCULATE THE pH AND HYDROLYSIS IN 0.10 M AlCl3 SOLUTION.Ka = 1.2 X 10-5 FOR [Al(OH2)6]+3,OFTEN ABBREVIATED Al+3.TELL WHETHER pH IS ACID OR BASE.GIVE IONIC EQUATION. Help us a little by telling us how much you know to do and exactly what you don't understand about the ...
July 29, 2007

Tariffs help us to maintain a favorable balance of trade and balance of payments
May 10, 2007

Sociology
were do california supreme court get their laws from
February 26, 2007

Econ MC
Suppose that the equilibrium price in the market for widgets is \$5. If a law reduced the maximum legal price for widgets to \$4, a. consumer surplus would necessarily increase even if the lower price resulted in a shortage of widgets. b. consumer surplus would necessarily ...
February 15, 2007

Econ
At Nick's Bakery, the cost to make his homemade chocolate cake is \$3 per cake. He sells three and receives a total of \$21 worth of producer surplus. Nick must be selling his cakes for a. \$2 each. b. \$7 each. c. \$8 each. d. \$10 each. i can't figure this question out. ...
February 15, 2007

Math
When it is said "Y as a funtion of X" does it mean y=f(x) eg. y=2x+3 or x=f(y) eg. x=2y+3 the first one is right
February 11, 2007

MATH
Find the volumes of the solids generated by revolving the region in the first quadrant bounded by the following about the given axes. x = y - y3, x = 1, y = 1 (b) Revolved about the y-axis ? Hi Shawn, 97/105 * pi ? :) We need to cut away the volume of the region you get by ...
February 9, 2007

Chem
Nitric acid is produced commercially by the Ostwald process, represented by the following equations: 4NH3(g) + 5O2(g) > 4NO(g) + 6H2O(g) 2NO(g) + O2(g) > 2NO2 (g) 3NO2(g) + H2O(l) > 2HNO3(aq) + NO(g) What mass of NH3 must be used to produce 1.0x10^6 kg HNO3 by the ...
February 2, 2007

math
when you are multiplying an equation how do you find like terms The ones that look alike. The numbers are like terms such as 4 or 8 or 10. The variables are like terms such as 4x or 9x or 3x but both of these like terms are different still from say 4x^2 or 19x^3. Another way ...
January 31, 2007

biochemistry
The phenomenon of coupling always involves ? oxidation and reduction reactions decarboxylation reactions reactions that produce energy and related reactions that require energy esterification and oxidation reactions None of the above
January 29, 2007

Chem
Nitric acid is produced commercially by the Ostwald process, represented by the following equations: 4NH3(g) + 5O2(g) > 4NO(g) + 6H2O(g) 2NO(g) + O2(g) > 2NO2 (g) 3NO2(g) + H2O(l) > 2HNO3(aq) + NO(g) What mass of NH3 must be used to produce 1.0x10^6 kg HNO3 by the ...
January 26, 2007

Biochemistry
True or False Cofactors and coenzymes are usually larger than enzymes and participate in catalysis . http://en.wikipedia.org/wiki/Coenzyme Notice the 3rd word under the definition when at the above site.
January 24, 2007

Biochemistry
True or False? Allosteric inhibitors always bind to the active site of an enzyme. http://www.mansfield.ohio-state.edu/~sabedon/biol1045.htm Scroll to 15 when at the site I've provided
January 24, 2007

We are just starting this section, and I'm confused...Please help me understand how to solve this inequality: (one fifth r is less than two) 1/5r < 2 Also, simplify: (the #s are exponents) z3 . z3 x12/x3 By 1/5r you mean r/5 or 1/(5r)? z^3 . z^3 = z^6 x^12/x^3 = x^9 If ...
January 3, 2007

ap chemistry
Answer: In order to have a dipole moment (i.e., to be a polar molecule) a molecule must have polar bonds and must have a molecular geometry which is not symmetrical (i.e., one in which the vector sum of the bond dipoles  0). In CH2F2 the C-F and C-H bonds are polar and...
December 7, 2006

history
Why was the oil derrick built? http://en.wikipedia.org/wiki/Derrick_(lifting_device)
October 19, 2006

history
In what city was the first oil derrick built in texas?
October 19, 2006

history
I,m doing research on the oil derricks and pumping unit and need to know what material the first oil derrick was made from in Texas Since this is not my area of expertise, I searched Google under the key words "oil derrick history Texas" to get these possible sources...
October 19, 2006

Vocab/spelling
I need help I do Not understand the difference between country"s ,countrie"s, and countries? can some one help it is the same
October 19, 2006

Antiderivative
What is the antiderivative of e^2x? I know the antiderivative of e^x is e^x. Would e^2x's antiderivative still be e^2x?? You want F(x) such that F'(x)=e^2x Try F = (1/2)e^2x + C =(e^2x)/2 =(e^2x)/2
October 9, 2006

geography
what flatlands extend south from cheapsake bay to the east coast of florida? That region is often called the Inner Banks. This distinguishes it from the Outer Banks, which are barrier islands.
September 19, 2006

peer review
what are some advantages for both the reviewer and writer of peer reviews The author of a work that is reviewed by his/her peers gains prestige and legitimacy by having knowledgable people comment and review his work. The peers also can correct any errors in his work. The ...
July 14, 2005

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