Thursday

July 30, 2015

July 30, 2015

Total # Posts: 512

**Math**

Multiply Write the answer in the form a+bi. (2-3i)^2 I am coming up with 4-3i what am I doing wrong?
*October 27, 2008*

**Math**

Multiply: sqrt-25 sqrt-100 is it 50?
*October 27, 2008*

**Math check**

subtract: 3+5i-(-4+6i) is the answer 7-i?
*October 27, 2008*

**Math**

Express in terms of i and simplify: sqrt-54 is the answer -3isqrt6
*October 27, 2008*

**Math problem**

A disoriented driver crosses diagonally from one corner of a 150 m by 275 m lawn to the far corner. How far does the wayward driver drive across the lawn? Give an approximate answer to three decimal places.
*October 27, 2008*

**Math**

Simplify ^3 sqrt symbol 4x ^3 sqrt symbol 6y Would I combine the 4x and the 6y?
*October 27, 2008*

**math help**

On the paper the 5 is a small five and over the sqrt root symbol and inside the square root is x^7 and y^4
*October 26, 2008*

**math help**

This problem is a little different Simplify: ^5 sqrt symbol(x^7 y^4) How would I solve this problem?
*October 26, 2008*

**Math**

I am kinda stuck on this one Simplify: (x^7 y^4)to the 1/5 power 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 of the root.
*October 26, 2008*

**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**

^3sqrt4x ^3sqrt6y Not sure of how to work this problem.
*October 26, 2008*

**Math**

yes it is sqrt [ (4x^2)/(36y^6)]
*October 26, 2008*

**Math**

Simplify: sqrt(4x^2)/(36y^6) is the answer x/(3y^3)?
*October 26, 2008*

**Math**

Yes, it is (x^7 y^4)1/5
*October 26, 2008*

**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: ^3ã-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 3ã7 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**

Thanks
*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*

**possessive noun**

shawn
*October 8, 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*

**Business Research and Writing**

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*

**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?
*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*

**Business and Technology**

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*