Friday

October 21, 2016
Total # Posts: 883

**Calculus**

find the rate of change dy/dx for y=x(1-x); x=-1

*June 26, 2011*

**Algebra**

Solve the system of equations by graphing. Then classify the system. x+y=11 x-y=-5

*June 7, 2011*

**physics**

If a ball is thrown upwards at 20 ft/sec, the height h after t seconds is given by h = -16t^2 + 20t.
How many seconds does it take for the ball to reach its maximum height, and what is this height?

*May 22, 2011*

**literature**

which of the following terms descrides the period of the 1920s?

*May 17, 2011*

**Lit Class**

not d

*May 16, 2011*

**algebra**

Thanks for the input.

*May 15, 2011*

**algebra**

If the cost of a cell phone has decreased 400% during the past 10 years, does that correspond to a cost decrease of four times?

*May 15, 2011*

**Chemistry**

A 1.00 L sample of a pure gas weighs 0.785 g and is at 733.4 torr and 29.2 degree celcius. a) what is the molar mass of the gas? b) if the volume of the temperature are kept constant while 0.400 g of the same gas are added to that already in the container, what will the new ...

*May 11, 2011*

**my question was answered wrong**

In how many different ways can you arrange three 4x8 tiles to form a rectangle?

*May 10, 2011*

**MATH!**

The sum of two prime numbers is the prime number 89,563. Find the smaller of the two addends. I attempted the problem but I'm not sure if it is right. 89,561 is a prime number and so is 2. So is the answer 2?

*May 6, 2011*

**Math**

Okay I understand. I just wasn't sure if rearranging the tiles (putting them in a different order) would be considered another rectangle. But I get it now. With the answer being 1. Thank you.

*May 6, 2011*

**Math**

So mixing them up doesn't make it another option? I'm assuming that this problem is a trick question.

*May 6, 2011*

**Math**

But I don't know for example,say you labeled each tile A, B, and C. Is there an option to lay them in different orders, or does that not matter because they are all the same tile? Also is another way, to lay it down as a coloum instead of a row?

*May 6, 2011*

**Math**

In how many different ways can you arrange three 4x8 tiles to form a rectangle? I don't know how to do this.

*May 6, 2011*

**algebra**

tana rode a boat 1 km upstream in and hour. rowing at the same rate, she made the return trip downstream in 15 minutes. find the rate of the current

*April 29, 2011*

**Psychology**

i think your write with the answer being c

*April 25, 2011*

**global finance**

Please review the following case and use it as the basis for your analysis for this unit. Pay careful attention to the situation and note the specific events as they might apply to the information from your chapter. You will use this data to form the basis of your analysis. ...

*March 25, 2011*

**Business**

Best Answer - Chosen by Voters The bank's security interest has attached, but it has not perfected its security interest. Typically in a closing for a secured loan, the borrower executes and delivers the note and security agreement and then the bank authorizes the release ...

*March 15, 2011*

**chemistry**

You are given a bottle of household vinegar of volume 500 cubic centimeters. Design an experiment to determine its concentration. Add illustrations

*March 12, 2011*

**finance**

Please review the following case and use it as the basis for your analysis for this unit. Pay careful attention to the situation and note the specific events as they might apply to the information from your chapter. You will use this data to form the basis of your analysis. ...

*March 5, 2011*

**finance**

Please review the following case and use it as the basis for your analysis for this unit. Pay careful attention to the situation and note the specific events as they might apply to the information from your chapter. You will use this data to form the basis of your analysis. ...

*March 5, 2011*

**interview question**

it should be l!

*March 3, 2011*

**chem**

which compound will dissolve better in water, NaCl or CsCl...explain!!! *hint* check eletronegativity!

*March 3, 2011*

**Math**

A hemisphere with diameter 70cm

*February 24, 2011*

**Pyschology**

what does this mean? psychology is uniquely qualified to help intervene? I also would like you to comment on what are at least two key ways psychology is uniquely qualified to help intervene.

*February 21, 2011*

**social studies**

How does geography affect development of a city

*February 19, 2011*

**Psychology**

I need help. Can anyone tell me about twins studies.

*February 15, 2011*

**science 6 helppppppppppppppppppp**

two identical batteries are connected to different circuit. explain how it is possible for the batteries to supply different amount of power? is it because the another batteries might have more power??

*February 13, 2011*

**Town View**

How would a drop of water effect the freezing point of acetic acid?

*February 3, 2011*

**math 9 helppp**

how about this equation? is this right?? 7x=380 x=55 55-3.50 =51.5

*January 27, 2011*

**math 9 helppp**

concert tickets are for sale online. there is a handline fee of $3.50 added to the cost of every tickets. if you uy 7 tickets and the total comes to $385 what is the cost of one ticket before the handling fee is added? the answer is $51.50 but i got 51 i dun know why i solve ...

*January 27, 2011*

**math**

a rope is 120 ft long and the water is 20 ft deep. how far is the anchor from a point directly below the boat?

*January 26, 2011*

**social study 9 **

difference between hudsons bay company and north west company (what did they do? and how they NWC and the HBC company operated?

*January 25, 2011*

**Statistics for social sciences**

i don't know

*January 24, 2011*

**Algebra**

Isosceles triangle,two angles have the same measure. Determine the measure of the third angle in an isosceles triangle,if the third angle is 10 more than one-half of either of the equal measurements

*January 19, 2011*

**algebra**

2x^3+x^2+8x+4

*January 11, 2011*

**Physics**

A 0.700 kg object attached to the end of a 0.560 meter wire revolves uniformly on a flat, frictionless surface. a) If the object makes three complete revolutions per second, what is the force exerted by the wire on the object? b) What is the speed of the object?

*January 6, 2011*

**Cal 1**

The top and bottom margins of a poster are each 12 cm and the side margins are each 8 cm. If the area of printed material on the poster is fixed at 1536 cm^2, find the dimensions of the poster with the smallest area.

*December 8, 2010*

**algebra**

Please I'm stuck!!!!! A person is driving a car on a straight road. The graph shows the distance in y miles that the individual is from home after x hours. the graph has the following points (1, 40) and (3, 90) Find the slope intercept of the line y = ____x + ______ How ...

*December 6, 2010*

**College algebra**

A person is driving a car on a straight road. The graph shows the distance in y miles that the individual is from home after x hours. the graph has the following points (1, 40) and (3, 90) Find the slope intercept of the line y = ____x + ______ How fast is the car traveling? ...

*December 6, 2010*

**College algebra**

Thank you so much. I can't believe it was so simple..:):)

*December 6, 2010*

**College algebra**

a company finds it can produce 15 heaters for $4300, while producing 20 heaters costs $5500. Express y, as a linear function of the number of heaters, y. Determine the cost to produce 30 heaters. y = _________ Cost to produce 30 heaters $_________ Help I'm not sure how to ...

*December 6, 2010*

**Math Probability**

1p

*December 3, 2010*

** VB programming**

This problem is creating code for a line chart. - Write a program to create the line chart. Use Table in 9.6: Table 9.6] Two -year college enrollments (in thousands). 1960 1970 1980 1990 2000 ---------------------------------- Male 283 1375 2047 2233 2398 Female 170 945 2479 ...

*December 1, 2010*

**Programming **

Thank you so very much. I got the program to run.

*November 28, 2010*

**science**

what is the standard for measuring volumes of fluids

*November 27, 2010*

**college**

You're correct move is suppose to be more. Thank you so much for explaining this to me. It's very helpful.

*November 23, 2010*

**college**

Please explain with complete step by step instructions. #8)One type of lawn fertilizer consists of a mixture of nitrogen, phosphorus and potassium. An 80lb sample contains 8 move lbs of nitrogen and phosphorus than potassium. There is 16lb more potasssium than 5 times the ...

*November 23, 2010*

**college Algebra**

Please explain with complete step by step instructions. #8)One type of lawn fertilizer consists of a mixture of nitrogen, phosphorus and potassium. An 80lb sample contains 8 move lbs of nitrogen and phosphorus than potassium. There is 16lb more potasssium than 5 times the ...

*November 22, 2010*

**college algebra**

Okay. I understand. Thank you very much...

*November 22, 2010*

**college algebra**

Using Systems of Equations. Please help!!! I'm not sure what steps to do, to work this problem. #7) Five hundred tickets were sold for a school play, which generated $3560 in revenue. The prices of the tickets were $5 for children, $7 for students, and $10 for adults. ...

*November 22, 2010*

**VB 2008 Programming**

Also I'm a little confused with your suggestion. Could you restate it a little differentlly for me? Thanks.

*November 20, 2010*

**VB 2008 Programming**

I've revised my code and am including it now. I've tried to debug it, but am stuck on trying to get it to run properly. Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnOffice.Click 'Randomlly select office members ...

*November 20, 2010*

**VB 2008 Programming**

This is my code : Public Class frmOffice Private Sub btnDisplay_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDisplay.Click Dim randomNum As New Random Dim name1, name2, name3 As String Dim sr As IO.StreamReader = IO.File.OpenText("MEMBERS....

*November 20, 2010*

**VB 2008 Programming**

HELP!!!! I'm not sure How to get started nor the steps to design this project. The file MEMBERS.TXT contains the names of the 100 members of a club. Write a program to randomly select people to serve as President, Treasurer, and Secretary. Note: A person cannot hold more ...

*November 20, 2010*

**Visual Basic 2008 Programming**

Thank you MathMate. You were a great help. I was able to finish creating the program and it works correctly..

*November 16, 2010*

**Visual Basic 2008 Programming**

Okay this is my Code: My coding is quite a bit off. Help me please. Thanks. Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDisplay.Click Dim AmountCompound As Integer = 1000 For AmountSimple As Integer = 1 To...

*November 16, 2010*

**Visual Basic 2008 Programming**

Help! I'm not sure how to start or how calculate. This is the project. Using For Next Loops. - When $1000 is deposited at 5 percent simple interest, the amount grows by $50 each year. When money is invented at 5 percent compound interest, then the amount at the end of each...

*November 16, 2010*

**Physics**

Two People who weigh the same climb a flight of stairs. The 1st person climbs the stairs in 30s, and the 2nd person climbs them in 40s. Which person does more work? which uses more power. - I would personaly think the 2nd person does more work and power cus she weights the ...

*November 15, 2010*

**Physics**

Two People who weigh the same climb a flight of stairs. The 1st person climbs the stairs in 30s, and the 2nd person climbs them in 40s. Which person does more work? which uses more power. - I would personaly think the 2nd person does more work and power cus she weights the ...

*November 15, 2010*

**College Algebra**

you are correct. I understand it now. You are such a fantastic help :)

*November 14, 2010*

**College Algebra**

Yes this would be very simple, except this is a logarithim equation. The answer you gave isn't correct either. the e actually represect ln.

*November 14, 2010*

**College Algebra**

Problem: Use Common or Natural Logarithims to solve the exponential equations symboliclly. 2e^7x+4=4 (Round to four decimal places) I tried solving this way 2e/2^7x+4=4/2 e^7x+4=2 ln e^7x+4=ln 2 7x+4=ln 2 7x+4-4=ln 2-4 7x=ln 2-4 7x/7=ln 2-4/7 x=ln 2-4/7 then I at a lose at ...

*November 14, 2010*

**Computer Programming**

Thank you I was able to create my program with your suggestions.

*November 13, 2010*

**Computer Programming**

This is a visual basics project.

*November 13, 2010*

**Computer Programming**

Project: I need help getting start on this project. What I have so far is a mess. It's Do While loops and nested loops. Table 6.1 shows the different grads of eggs and the minimum weight required for each classification. Write a program that processes the text file EGGS....

*November 13, 2010*

**ethics**

whose philosophy suit for environmental issues?

*November 5, 2010*

**algebra**

A metal stays solid at Fahrenheit temperatures below 1691.7 degrees. Determine (in terms of an inequality) those Celsius temperatures for which the metal stays solid. Use the formula F= 9/5 C + 32.

*November 3, 2010*

**ALGEBRA**

is this correct if not can you tell me whaT it is please!!! 32 3/5= 163/5

*October 31, 2010*

**Algebra**

THANKS AGAIN Reiny!!

*October 31, 2010*

**Algebra**

Hello Reiny, please check these problems for me and if they are not right WOULD YOU PLEASE HELP ME WITH THE CORRECT ONES THANKS!!! 1. Slove for X, wher X is the real number, square root 5x + 9= square root 9x + 13= 27 2. Find the value: ^3 square root -27= 9 3. Write the ...

*October 31, 2010*

**math**

I know youall are very busy an that answering posts takes time, but I am in real need of some one to check my questions to see if they are correct, because I need to post my answers very SOON!! PLEASE HELP!!!! THANKS!!

*October 31, 2010*

**algebra**

Thanks Reiny, You have been a blessing for me checking my answers.

*October 31, 2010*

**algebra**

PLEASE CHECK MY QUESTIONS SOON! I'M ON A DEADLINE, AND I TRULY NEED YOUR HELP!! Thanks

*October 31, 2010*

**algebra**

Help Fast PLEASE!! check for corrections on my problems 1.Rewrte the following in simplified radical form, Assume all variables represents positive real numbers: square root 48y^10= 4y^5 square root 3 2.Rationalize the denomintor and simplify: square root33/square root 21= ...

*October 31, 2010*

**algebra**

Hello Reiny,I need your help a few more times, and this time if they are not right, could you please help me with the correct answers!! THANKS

*October 31, 2010*

**algebra**

could someone please check these roblems for me and if they are not rightWOULD YOU PLEASE HELP E WITH THE CORRECT ONES THANKS!!! 1. Slove for X, wher X is the real number, square root 5x + 9= square root 9x + 13= 27 2. Find the value: ^3 square root -27= 9 3. Write the ...

*October 31, 2010*

**math**

is this correct if not can you tell me wha it is please 32 3/5= 163/5

*October 31, 2010*

**math**

SIMPLIFY: 32 3/5= 15 IS THIS CORRECT?

*October 31, 2010*

**math**

sorry I have a few more and I need the answers quick!! Find the value: ^3 square root -27= 9 Write the following in simlpified radical form: ^4 square root 80= 4 Solve for x, where x is real number: square 5x + 9= square root 9x + 13=27

*October 31, 2010*

**math**

could you please check this for me? Thanks use the quadratic formula to solve for x. 4x^2-x-4=0 x=1+ square root 65/8, 1- square root 65/8 = x``1.132782,-0.882782

*October 31, 2010*

**math**

Thanks Reiny!!

*October 31, 2010*

**math**

Need help quick please!! with provious questions on checking my answers.

*October 31, 2010*

**math**

is these answers correct? solve the equation: 2x^2 +8x - 17=(x +2)^2= x=-7,3 solve (v-5)^2-63=0, where v is a real number, simplify answer as much as possible. v=3 square root 7+5,-3 square root7+5 v``12.93725, -2.937254 use the quadratic formula to solve for x. 4x^2x-4=0 =x=1...

*October 31, 2010*

**algebra**

Thanks again Reiny!!

*October 31, 2010*

**algebra**

could someone check these answer please? solve the following proportion for x. x/8=5/3=0 rueben drove 300 miles using 14 gallons of gas, at this rate, how many gallons would he need to drive 210?= 40.3 gallons solve for v; v^2+v-30=0=v=-6,5 thanks

*October 31, 2010*

**Programming**

Thank you so much for your help. I was able to get it to work. I had to remove txt statements and just assign grosspay and make one txt statement after end if. Otherwise Matt was correct. Thanks everyone, you were very helpful....

*October 31, 2010*

**Programming**

this technique didn't work, I keep getting double results.

*October 31, 2010*

**Programming**

This is a problem with mathmatics. the Question is: Federal law requires hourly employees be paid "time-and-a-half" for work in excess of 40 hours in a week. For example, if a person's hourly wage is $8 and he works 60 hours in a week, his gross pay should be (40...

*October 31, 2010*

**Finance**

How much could I save in a year if I budgeted 1.4% of a $19,250. income?

*October 30, 2010*

**financing**

what would be the simple interest on a $4,500. loan if the annual percentage rate were 6.5%?

*October 30, 2010*

**I have already answered half of it. MATH!!**

1. Suppose you are in the market for a new home and are interested in a new housing community under construction in a different city. a) The sales representative informs you that there are two floor plans still available, and that there are a total of 115 houses available. Use...

*October 27, 2010*

**college algebra**

factor 256x2-81y2

*October 25, 2010*

**Progamming**

Thanx I will check.

*October 23, 2010*

**Progamming**

This is the Problem, I just want to get a little help on this problem. Suppose automile repair customers are billed at the rate of $35 per hour for labor. Also, costs for parts and supplies are subject to a 5% sales tax. Write a program to display a simplified bill. The ...

*October 23, 2010*

**Programming**

Thank you Matt and helper. Your help was very useful. I was able to get this program operational. The misstake I seem to have made with putting nested statements in. I had to take out some of the End Selects and change my operation from <> to =.

*October 22, 2010*

**Programming**

So do I. This program is a little difficult. Thank you for your help...

*October 22, 2010*

**Programming**

No I'm afraid the If statement did not work. I'm trying Case Else. But I think all my Select End and Select Case's are the cause.

*October 22, 2010*

**Programming**

Thank you both. I'll give the line a try and report back...

*October 22, 2010*

**Programming**

This is a visual basics program issue. The problem is: Table 4.7 contains information on several states. Write a program that requests a state and category (flower, motto and nickname) as input and displays the requested information. If the state or category requested is not ...

*October 22, 2010*