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April 18, 2014

April 18, 2014

Post a New Question | Current Questions

**College Algebra and Finance**

Please help! Just need the answer... A lender gives you a choice between the following two 30-year mortgages of $200,000: Mortgage A: 6.65% interest compounded monthly, one point, monthly payment of $1283.93 Mortgage B: 6.8% interest compounded monthly, no points, monthly ...
*Friday, December 7, 2012 at 4:00pm*

**College Chemistry**

Cu(s) + 4HNO3(aq) → Cu(NO3)2(aq) + 2H2O(l) + 2NO2(g) i need the chemical equation and the net ionic equation
*Friday, December 7, 2012 at 1:02am*

**College Chemistry**

Is .1M NaH2PO4 a good buffer? Explain.
*Thursday, December 6, 2012 at 10:46pm*

**Finance**

Mary has been working for a university for almost 25 years and is now approaching retirement. She wants to address several financial issues before her retirement and has asked you to help her resolve the situations below. Her assignment to you is to provide a 4-5 page report, ...
*Thursday, December 6, 2012 at 10:21pm*

**English**

College is terribly expensive today. Many students graduate with such a huge debt that they can't pay it off -- at least in a reasonable length of time.
*Thursday, December 6, 2012 at 8:37pm*

**English Comp**

read Chapters 1 and 2 and your Instructor’s Guidance for Week One again, applying the Survey-Question-Read-Recite-Review (SQ3R) strategy as you reread the materials. Discuss how this reading strategy is similar to and/or different from the way you read course material ...
*Thursday, December 6, 2012 at 7:06pm*

**This is Urgent Science**

I am a senior in college, biochemistry is my major quite a bit further than 7th, but if this is the stuff you get taught in 7th grade then you go to a pretty good school. Cystic fibrosis is what I would pick for number 4.
*Thursday, December 6, 2012 at 5:09pm*

**College Physics**

14) Given the following vectors, find the magnitude and direction: • A = 47 m and the angle is 0° • B = 62 m and the angle is 35° This is relative to the x-axis Magnitude: 401 m 140 m 104 m 0 m 503 m Direction: 20° 45° 55° 220° 90°
*Thursday, December 6, 2012 at 2:50pm*

**math**

From a survey of 200 college students, a marketing research company found that 140 students owned iPhones, 60 owned cars, and 50 owned both cars and iPhones. (a) How many students owned either a car or an iPhone (but not both)? ______ students (b) How many students do not own ...
*Wednesday, December 5, 2012 at 9:54pm*

**Math**

The separation between goalpost uprights in college football changed from 23 feet 4 inches to 18 feet 6 inches. What percent reduction was this?
*Wednesday, December 5, 2012 at 9:35pm*

**College Algebra**

is this really algebra, im doing this now in freshman year algebra 2
*Wednesday, December 5, 2012 at 7:40pm*

**Physics- Elena please help!**

Junior in College
*Wednesday, December 5, 2012 at 6:54pm*

**Fisher College**

LCD is used when working with more than one fraction. Common Denominator. If you only have one fraction, there is no LCD, per se.
*Wednesday, December 5, 2012 at 3:56pm*

**Fisher College**

What is 6y/7x^2 in terms of the LCD
*Wednesday, December 5, 2012 at 3:51pm*

**College Pre Calc**

lim t>7 F(x) (1/t)−(1/7)/t-7
*Wednesday, December 5, 2012 at 1:19am*

**College Pre Calc**

lim t>7 F(x) (1/t)−(1/7)/t-7
*Wednesday, December 5, 2012 at 1:19am*

**college chemistry**

what is the specific heat of a substance that required 800 joules of heat to raise the temperature of 50 grams of it from 20 degrees Celsius to 30 degrees Celsius?
*Tuesday, December 4, 2012 at 11:13pm*

**College Algebra**

Solve the logarithmic equation for x. log(base 3)(x+6) - log(base 3)(x+1)=1 urgent! help!
*Tuesday, December 4, 2012 at 9:38pm*

**Math **

Danny invested$5,000 into his savings account for college when he was 13 years old. If the account earns 2.5% interest every year, how much interest will danny have earned on his investment and how much money will danny have for college by the time that he is 18 years old?
*Tuesday, December 4, 2012 at 7:41pm*

**college allgebra**

find only rational zeros f(x)=x^5-9x64+21x^3+11x^2-100x=100
*Tuesday, December 4, 2012 at 5:58pm*

**Basic college Math**

9/2
*Tuesday, December 4, 2012 at 5:48pm*

**College Math**

(2x - 1 + 3x -6)/4x^2 Combine like terms.
*Tuesday, December 4, 2012 at 1:32pm*

**College Math**

Combine like terms. 3/6 = 6/12
*Tuesday, December 4, 2012 at 1:30pm*

**college algebra**

that's what I got. thanks
*Tuesday, December 4, 2012 at 5:43am*

**college algebra**

regroup things a bit to get x^2+16x+64 + y^2-18y+81 = 25 (x+8)^2 + (y-9)^2 = 25 no wonder you can't find the intercepts. This is a circle at (-8,9) with radius 5. It's too far away from the axes to intercept them!
*Tuesday, December 4, 2012 at 5:06am*

**college algebra**

sorry that should be x^2+y^2+16x-18y+145=25 Been up to long working on this. Again I am sorry!!
*Tuesday, December 4, 2012 at 2:02am*

**college algebra**

Can someone please help me find the x-intercepts and y-intecepts of this equation. I have the radius, and center but I can't seem to get the intercepts. x^2+y^2=16x-18y+145=25 Please show work. Thanks!!
*Tuesday, December 4, 2012 at 2:00am*

**English**

Read each sentence. Then underline each term that calls for italics The twins like to watch Tomas & Friends Thomas & Friends? This book, The Higher Power of Lucky, won an award, and it is a good read. The higher Power of Lucky? Do you mean course or coarse? course or coarse? ...
*Monday, December 3, 2012 at 8:43pm*

**Math (trigonometry)**

MONDAY December 3, 2012 SCHOOL SUBJECTS Art Business Computers English Foreign Languages Health Home Economics Math Music Physical Education Science Social Studies GRADE LEVELS Preschool Kindergarten Elementary School 1st Grade 2nd Grade 3rd Grade 4th Grade 5th Grade 6th...
*Monday, December 3, 2012 at 8:14pm*

**College Algebra**

Here is what I did so far: FV = P(1 + r/n)^(t*n) FV = 200,000 (1 + 0.008/8760)^(147*8760) FV = 200,000 Can you please tell me if I'm on the right track? I don't understand why I am getting the same number that I started with. Unless that is the correct answer?
*Monday, December 3, 2012 at 6:44pm*

**College Algebra**

The year he turned 18, Thomas Edison invested 0.8% compounded hourly. How much money would the account have now? Explain all steps. Be sure to include an explanation of how you found out when Edison turned 18 and how you calculated n. Part of the credit is for your explanation...
*Monday, December 3, 2012 at 6:39pm*

**college physics**

A 55-kg woman cheats on her diet and eats a 465-Calorie (465 kcal) jelly doughnut for breakfast. (c) If the human body is only 24% efficient in converting chemical energy to mechanical energy, how many stairs must the woman climb to work off her breakfast? I got 24075.32468 ...
*Monday, December 3, 2012 at 2:26pm*

**college physics**

An aluminum cup contains 225 g of water and a 40-g copper stirrer, all at 27°C. A 400-g sample of silver at an initial temperature of 87°C is placed in the water. The stirrer is used to stir the mixture gently until it reaches its final equilibrium temperature of 32&...
*Monday, December 3, 2012 at 2:26pm*

**college algebra**

parallel to y =7 is a horizontal line y = 0x + 5 or y = 5 complete the square a couple of times x^2 + 16 x = -y^2 + 18 y - 120 x^2 + 16 x + 64 = -y^2 + 18 y - -56 (x+8)^2 + y^2 - 18 y = -56 (x+8)^2 + y^2 - 18 y + 81 = 25 (x+8)^2 + (y-9)^2 = 5^2 center at (-8,9) radius 5 etc
*Monday, December 3, 2012 at 12:19pm*

**statistics**

Scores on the ACT college entrance exam are Normally distributed with a mean µ = 20 and standard deviation σ = 5. An SRS of 25 ACT scores is selected, construct a 95% Confidence Interval for the sample mean (X-Bar) and interpret your result.
*Monday, December 3, 2012 at 11:48am*

**college algebra**

1. for the given slope-inntercept equation of the line with the following properties parallel to the line y=7; containing the (-3,5) 2. write the equation of the circle in standard form. find the center, radius, intercepts. x^2+y^2+16x-18y+145=25 please show work
*Monday, December 3, 2012 at 11:34am*

**College Chemistry**

See your post above.
*Monday, December 3, 2012 at 12:27am*

**Statistics**

Research Question for Parts 1 and 2: A health psychologist wants to study overall student health on a university campus. One measure he decides to take is that of minutes exercised per week. Assume that we know from previous studies that the population mean for minutes of ...
*Sunday, December 2, 2012 at 8:37pm*

**Basic college Math**

Please include the entire question. You still have not said what the problem is, only what the distance and rates are.
*Sunday, December 2, 2012 at 7:39pm*

**College Chemistry**

Using the accurate concentration that you measured in Part A (which is 14.77 ml), calculate the mass of HCl (in grams) present in a 15.00-mL sample of the acid solution, using proper dimensional analysis
*Sunday, December 2, 2012 at 7:38pm*

**Basic college Math**

The first option, Truck A, offers a flat fee of $25 and $.40 per mile. Truck B offers a flat fee of $30 and $.25 per mile. The distance between Meagan's house from her mother's the measurement is in the shape of a trianagle 6 miles, 8 miles, ? miles,
*Sunday, December 2, 2012 at 7:28pm*

**Basic college Math**

What are you supposed to be solving for? (:
*Sunday, December 2, 2012 at 7:15pm*

**College Math**

Sorry
*Sunday, December 2, 2012 at 7:14pm*

**Basic college Math **

option, Truck A, offers a flat fee of $25 and $.40 per mile. Truck B offers a flat fee of $30 and $.25 per mile.
*Sunday, December 2, 2012 at 7:12pm*

**College Math**

This is what you learn in college now? I would help you, if you hadn't spammed all your homework problems. Be considerate and not flood out other's posts.
*Sunday, December 2, 2012 at 7:10pm*

**College Math**

(2x-1/x+3)+(x+4/x-6)+(3x-1/x^2-3x-18)
*Sunday, December 2, 2012 at 6:49pm*

**College Math**

(2x/x^2-16)+(7/x-4)
*Sunday, December 2, 2012 at 6:48pm*

**College Math**

(-2/n-6)-(6/2n+3)
*Sunday, December 2, 2012 at 6:48pm*

**College Math**

1/x^2+3/4x-5/6
*Sunday, December 2, 2012 at 6:47pm*

**College Math**

4x-3/6-8x-2/12
*Sunday, December 2, 2012 at 6:46pm*

**College Math**

2x-1/4x^2+3(x-2)/4x^2
*Sunday, December 2, 2012 at 6:46pm*

**college physics**

i figured out the first part using the fact that the crate will flip over once the CG is no longer above the crate, and drew a triangle of legs 1.44 m(distance from base of crate to CG), and 1.25m(distance from corner of crate to middle). at first i thought the answer would be...
*Sunday, December 2, 2012 at 5:14pm*

**College Physics 1**

.767s
*Sunday, December 2, 2012 at 5:05pm*

**College Physics 1**

.767s
*Sunday, December 2, 2012 at 5:05pm*

**English**

(1) After my interview with these four young people, I reflected on the quiet sense of "difference" I sensed with many of these Upward Bound students. (2) As a college teacher who has also taught seventh-grade science, I have some experience with the faces and ...
*Sunday, December 2, 2012 at 2:35pm*

**Economics**

In which of the following situations would someone have to pay a gift tax? A. A relative dies and leaves you $13,000 in the will. B. Your cousin gives you a car worth $1,700. C. Your grandmother gives you $13,000 toward college. D. Your cousin gets a job paying $32,000 a year...
*Sunday, December 2, 2012 at 1:17pm*

**college algebra**

if you rearrange things a bit, you see x^3-100x + x^2-100 = x(x^2-100) + 1(x^2-100) = (x+1)(x^2-100) = (x+1)(x-10)(x+10)
*Sunday, December 2, 2012 at 7:25am*

**college algebra**

Need help finding the x-intercepts y=x^3+x^2-100x-100 I know that the answer is (10,0),(-10,0),(-1,0) I don't understand how to get (-10,0) and (10,0)
*Sunday, December 2, 2012 at 6:57am*

**physics**

Buoyancy = 1000 kg/m^3 * 9.81 * vol weight = 600 kg/m^3 * 9.81 * vol net force up = 400 * 9.81 * vol F = m a 400 * 9.81 * vol = 600 * vol * a a = (2/3) * 9.81 -------------------------------- work done in rise to surface = F * 10 = 4000*9.81*vol = Kinetic energy on exit from ...
*Saturday, December 1, 2012 at 8:20pm*

**physics**

Buoyancy = 1000 kg/m^3 * 9.81 * vol weight = 600 kg/m^3 * 9.81 * vol net force up = 400 * 9.81 * vol F = m a 400 * 9.81 * vol = 600 * vol * a a = (2/3) * 9.81 -------------------------------- work done in rise to surface = F * 10 = 4000*9.81*vol = Kinetic energy on exit from ...
*Saturday, December 1, 2012 at 8:19pm*

**college algebra**

1. is answered below on related links 2. f(x) = x^2+10X+25 - 11 - 25 f(X) = (X+5)^2 - 36 now read off the vertex, which lies on the axis of symmetry.
*Saturday, December 1, 2012 at 7:07pm*

**college algebra**

it is customary online to use <= or >= for less than or equal, etc. for both f and g, the domain is all reals except x = 5/9 so, f+g has the same domain f/g = (2x+1)/4x so, you would think the domain is all reals except x=0, but since neither f nor g is defined at x = 5/...
*Saturday, December 1, 2012 at 7:03pm*

**college algebra**

for the given function f&g, find the following and state the domain of each result f(x)=2x+1/9x-5; g(x)4x/9x-5 a.(f+g)(x)= what is the domain? b.(f/g)(x)= what is the domain? please show work answer the following for the given quadratic function f(x)=x^2+10x-11 a. what is the ...
*Saturday, December 1, 2012 at 6:42pm*

**college algebra**

on the second question it should be f(x)= {x+6 if -5is less than or greater than x<1 9 if x=1 -x+4 if x>1 sorry it didn't come out right.
*Saturday, December 1, 2012 at 5:37pm*

**college algebra**

1. answer the following for the given quadratic function f(x)=x^2+10x-11 a.what is the vertex (h,k) of f? b. what is the axis of symmetry? Please show work. 2. if f(x)=Inx, g(x)=e^5x, and h(x)=x^6 find the following a. find (fog)(x)= what is the domain of fog? b.find (gof)(x...
*Saturday, December 1, 2012 at 3:49pm*

**college algebra**

2. if rational roots exist, they must be ±1, or ±2 or ±1/2, ±1/4 we can rule out any positive x's since all the terms have positive and will never add up to zero f(-1) = 4 - 5 + 9 - 10 + 2 = 0 , yeahh by synthetic division 4x^4+5x^3+9x^2+10x+2...
*Saturday, December 1, 2012 at 3:38pm*

**college algebra**

1.for the given function f&g, find the following and state the domain of each result. f(x)=2x+1/9x-5; g(x) 4x/9x-5 a.(f+g)(x)=? What is the domain? b. (f/g)(x)=? what is the domain? 2.the function f is defined as follows {x+6 if -5 ¡Üx<1 f(x)={9 if x=1 {-x+4 if x...
*Saturday, December 1, 2012 at 3:26pm*

**College Math**

Compute the total prize money awarded. Just add them up. Looks like it's $4000. That total is the expected value of the raffle. 1/1000 of that total is the expected value of a single ticket.
*Saturday, December 1, 2012 at 2:02pm*

**college physics**

A cubic crate of side s = 2.5m is top-heavy: its CG is 19cm above its true center. Part A How steep an incline can the crate rest on without tipping over? Part B What would your answer be if the crate were to slide at constant speed down the plane without tipping over? [Hint: ...
*Saturday, December 1, 2012 at 1:16pm*

**College Math**

Volunteers working to raise funds for a new community library sold 1000 raffle tickets at $10 each. Tickets are to be randomly drawn and prizes are awarded as follows: one prize of $1,000, twenty prizes of $50 and one hundred prizes of $20. What is the expected value of this ...
*Saturday, December 1, 2012 at 12:47pm*

**college algebra**

using rules of logs, your equation becomes log8 ((x+8)/(x+7)) = 2 (x+8)(x+7) = 8^2 = 64 x^2 + 15x + 56 - 64 = 0 x^2 + 15x - 8 = 0 x = (-15 ± √257)/2 but x > -7 or else the log part would be undefined so x = (-15 + √257)/2
*Saturday, December 1, 2012 at 11:45am*

**college algebra**

1. solve the following logarithmic equation log_8(x+8)+log_8(x+7)=2 what is the exact solution 2.se the rational theorem to find all the real zeros of the polynomial function. use the zeros to factor f over the real numbers. f(x)=4x^4+5x^3+9x^2+10x+2 a.find the real zeros of f...
*Saturday, December 1, 2012 at 11:08am*

**college algebra**

in your -3x_y= -27, since the _ is the "shift" of the - sign, I will assume you meant -3x-y= -27 and you have a typo. (But then why would it not have been written as 3x + y = 27 ??? , strange) anyway, the slope of the given line is -3 so the slope of the new line ...
*Saturday, December 1, 2012 at 10:39am*

**English**

(1) After my interview with these four young people, I reflected on the quiet sense of "difference" I sensed with many of these Upward Bound students. (2) As a college teacher who has also taught seventh-grade science, I have some experience with the faces and ...
*Saturday, December 1, 2012 at 10:26am*

**college algebra**

1. find the equation of the line with the given properties. Express the equation in general form or slope-intercept form. perpendicular to the line -3x_y= -27; contains the point (9, -1) the equation of the line is ? 2. solve the polynomial inequality and then graph the ...
*Saturday, December 1, 2012 at 9:22am*

**college algebra**

(1) The slope must be 15. To pass through (1,-4), it must be the equation y + 4 = 15 (x - 1) That can be rewritten in standard form as y = 15x -19 (2) (distance)^2 = (y2-y1)^2 +(x2-x1)^2 =(4-1)^2 + [1 - (-3)]^2 = 9 + 16 = 25 distance = 5
*Saturday, December 1, 2012 at 3:22am*

**college algebra**

find the equation of the line that is parallel to the line y=15x and contains the point (1,-4) y= find the distance d (p_1, and p_2) between the points p_1 and p_2 p_1=(-2,1) p_2=(1,4)
*Saturday, December 1, 2012 at 2:07am*

**College Algebra**

log(xy^12)
*Saturday, December 1, 2012 at 1:31am*

**College Algebra**

Write the expression as a single logarithm whose coeffecient is 1. Log x + 12 log y
*Saturday, December 1, 2012 at 1:06am*

**College History**

Thank you again for your time
*Friday, November 30, 2012 at 11:28pm*

**college algebra**

the domain is your choice of x's you can use in the equation. the range is the resulting y's obtained by using those x's
*Friday, November 30, 2012 at 10:35pm*

**College History**

1. C 2. http://en.wikipedia.org/wiki/Woodrow_Wilson#Presidency.2C_1913.E2.80.931921 3. We did place an embargo on belligerent nations. http://www.us-foreign-policy-perspective.org/index.php?id=303 4. Republicans http://en.wikipedia.org/wiki/United_Stat...
*Friday, November 30, 2012 at 10:08pm*

**college algebra**

I am having to explain how to find the domain and range of a rational function from its graph. Can someone help me to try and put this into simple terms.
*Friday, November 30, 2012 at 10:01pm*

**College History**

I have quite a few that I couldn't figure out on my assignment. 1) The leading symbol of reforming state governments in rhe early 1900's was A) Theodore Roosevelt B) Woodrow Wilson C) Robert La Follette D) Upton Sinclair 2) Wilson's first dealings with Congress ...
*Friday, November 30, 2012 at 9:44pm*

**College History**

You're welcome.
*Friday, November 30, 2012 at 9:24pm*

**College History**

thank you!
*Friday, November 30, 2012 at 9:21pm*

**College History**

This is a tricky question. Your question asks about the migration in the 20s, yet D) only mentions the migration before 1920. So it must be D.
*Friday, November 30, 2012 at 8:11pm*

**College History**

Which of the following was NOT a result of the great migration of blacks in the 1920s? A) Blacks found they someetimes were able to work in jobs that has been closed to them in the South. B) African American consciousness was raised, providing feelings of greater autonomy and ...
*Friday, November 30, 2012 at 8:01pm*

**college algebra**

write the expression as a single logarithm 1. In(x/x*2)+In(x+2/x)-In(x^2-4) solve the following logarithmic equation. 2. log_9(x-2)+log_9(x+1)=2 what is the exact solution? What is the decimal approximation for the solution when rounded three decimal places. please show work
*Friday, November 30, 2012 at 7:07pm*

**college algebra**

lots of folks just write log_2(x-2) the numbers are subscripts, not lower-case. 1. since we're dealing with logs base 2, just say log: 2log(x-2) + log2 = 3 log(x-2)^2 + log2 = 3 log(2(x-2)^2) = 3 2(x-2)^2 = 8 (x-2)^2 = 4 x = 0 or 4 I assumed that log(lower2)^2 meant log(...
*Friday, November 30, 2012 at 3:24pm*

**college algebra**

solve the following logarithmic equation. 1. 2log(lower2) (x-2) + log(lower2)^2=3 I do not know how to make the 2 by the g on my computer. 2. log(lower729^x) + log(lower27^x) + log(lower3^x) =9 again I do not know how to make the numbers lower case please show work, and if you...
*Friday, November 30, 2012 at 2:57pm*

**college algebra, Please help!!**

f(g) = g^2+8 = √(x-5)^2+8 = x-5+8 = x+3
*Friday, November 30, 2012 at 11:04am*

**college algebra**

if h(x) = √(x^2+17) f(x) = √x g(x) = x^2+17 f◦g = f(g(x)) = √g(x) = √(x^2+17) = h(x)
*Friday, November 30, 2012 at 11:01am*

**college algebra**

find functions f anf g so that fog equals H H(x)=ãx^2+17 please show work
*Friday, November 30, 2012 at 5:16am*

**college algebra, Please help!!**

find the domain of the composite function of fog f(x)=x^2+8;g(x)ãx-5
*Friday, November 30, 2012 at 5:14am*

**college algebra**

Basic rules: lna+lnb=ln(ab) and lna-lnb=ln(a/b) also lna^x=xlna ln[x/(x-2)*(x+2/x)]-ln(x^2-4)= ln[(x^2+2)/(x-2)]-ln(x^2-4)= ln [divide]hence simplify fraction and get answer
*Friday, November 30, 2012 at 5:06am*

**college algebra**

lnx+ln15=ln(15x)
*Friday, November 30, 2012 at 5:02am*

**college algebra, Please help!!**

you haven't written the question properly . Is the power of 9 the x-1?
*Friday, November 30, 2012 at 5:01am*

**college physics**

A hydraulic brake system is shown. The area of the piston in the master cylinder is 6.32 cm^2, and the area of the piston in the brake cylinder is 1.83 cm^2. The coeﬃcient of kinetic friction between the brake shoe and the wheel drum is 0.443. How large is the ...
*Thursday, November 29, 2012 at 11:33pm*

**College Math**

answer is b
*Thursday, November 29, 2012 at 5:11pm*

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