Wednesday
July 30, 2014

Posts by shawn


Total # Posts: 476

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)

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

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)

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?

Word problem check
Thank you

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?

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 ?

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

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.) 1...

Math check 2
I got it thanks

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 assi...

math check
Thank you

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?

Math word problem
Thank you I have the answer as 10km/h.

Math assistance needed
Thank You. I understand.

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

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 ...

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

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?

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?

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)

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

Math another problem
Solve 1/C=1/C1+1/C2 for C1.

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

possessive noun
shawn

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) Sta...

college algebra
h(x)=3xsquared+5x-3

math
divide.x^4+x^2-80/x+3

math
subtract. 5y^2+2y-9 from 10y^2+3y+5

math
solve for x 2(x-5)^2=3

axia
peer review appendix g

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

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?

Business Research and Writing
Discuss the purpose of journals and professional papers. Discuss the organization of a technical scientific paper.

algebra 2
nevermind i got it yea thank you i can do it

algebra 2
whats the up arrow thingy mean?

algebra 2
opps its log(base2) (x+2)= log(base2) x squared

algebra 2
log(base 2) (x=2)= log(base 2)x squared

algebra 2
log[little 3] (2x-1)=3

science
evidnce for evolution

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?

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

us history
what types of job did women have in the era of reform.

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."

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?

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.)

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

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?

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

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 ...

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

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...

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...

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.

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 prob...

Business and Technology
Tariffs help us to maintain a favorable balance of trade and balance of payments

Sociology
were do california supreme court get their laws from

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 decre...

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. Pr...

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

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 re...

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 Ost...

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 t...

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

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 Ost...

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.

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

Math - 8th grade
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 ...

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...

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

history
In what city was the first oil derrick built in texas?

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...

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

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

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.

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 revi...

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