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January 30, 2015

January 30, 2015

Post a New Question | Current Questions

**College Algebra**

I am using Hawkes Learning System (8.7 Nonlinear Systems of Equations)and my problem is x^2+y^2=13 and y+7=x^2. The answers I came up with are 2 square root of 3 and 3 for my x's. And I received (5,-4) as the y-coordinates. Is this correct?
*Wednesday, November 14, 2012 at 11:25am*

**physics**

a college student takes her book to class by placing them in a box and pulling it around school. She pulls on the box with a force of 90N at a angle of 30 relative to the horizontal. the box of books has a mass of 20 kg and the coefficiant of kinetic friction between the ...
*Wednesday, November 14, 2012 at 1:18am*

**physics**

a college student takes her book to class by placing them in a box and pulling it around school. She pulls on the box with a force of 90N at a angle of 30 relative to the horizontal. the box of books has a mass of 20 kg and the coefficiant of kinetic friction between the ...
*Wednesday, November 14, 2012 at 1:18am*

**College Algebra**

Find a polynomial function f(x), with real coefficients, that has 1 and 3+2i as zeros, and such that f(-1)=2 (Multiply out and simplify your answer)
*Tuesday, November 13, 2012 at 11:20pm*

**College Algebra**

6000 seat theater tickets for sale $25 and $40 how many tickets should be sold at each price for total revenue of $192,000
*Tuesday, November 13, 2012 at 8:18pm*

**Algebra**

Task Type: Individual Project Deliverable Length: 3 Parts: See Assignment Details Points Possible: 150 Due Date: 11/5/2012 11:59:59 PM CT Weekly tasks or assignments (Individual or Group Projects) will be due by Monday and late submissions will be assigned a late penalty in ...
*Tuesday, November 13, 2012 at 12:51am*

**college algebra**

John invests $2500 in an account that pays a rate r compounded annually. If after 2 years the total interest earned is $650, find the approximate rate of interest
*Monday, November 12, 2012 at 11:05pm*

**college algebra--need help Please!!!**

I need to find the vertex and axis of symmetry of the folowing quadratic function. Can someone PLEASE help me!! y= -x^2-6x
*Monday, November 12, 2012 at 10:19pm*

**statistics**

Use the multiple regression equation to predict a person's salary. Assume that the variable A is the number of years of college. Assume that the variable B is the number of years of experience. Suppose the person has 7 years of college and 3 years of experience. What ...
*Monday, November 12, 2012 at 9:40pm*

**college chemistry**

How many milliliters of a 9.0\% ({\rm v/v}) propyl alcohol solution would you need to obtain 4.0{\rm mL} of propyl alcohol
*Monday, November 12, 2012 at 8:58pm*

**College Algebra**

How do you solve 3 log(base 2)*(x-1)+ log(base 2)4=5
*Monday, November 12, 2012 at 12:15pm*

**college algebra**

solve for X -7=7x^2-10x+6
*Sunday, November 11, 2012 at 10:28pm*

**statistics**

For which of the following situations would a repeated-measures research design be appropriate? a. comparing mathematical skills for girls versus boys at age 10 b. comparing pain tolerance with and without acupuncture needles c. comparing self-esteem for students who ...
*Sunday, November 11, 2012 at 9:13pm*

**college algebra**

find the zero's for the following polynomial and give the multiplicity for each zero. For each zero, state whether the graph crosses the x-axis or touches the x-axis and turns around. f(x)=5(x-2)(x+4)^3 I am having trouble with this. Can you please show me how you got the ...
*Sunday, November 11, 2012 at 4:17pm*

**College Math**

Fiona invested $1100 at 8% compound comtinously. At the same time, Maria ivested $1200 at 8% compounded daily. How long will it take for their investments to be equal in value?
*Sunday, November 11, 2012 at 8:09am*

**college algebra**

Given the following rational function, find: A. horizontal asymptotes B. vertical asymptote(s), if any C. oblique asymptote(s), if any f(x)=x^2-x-2/2x^2-x-21
*Saturday, November 10, 2012 at 6:04pm*

**Statistics**

Use the multiple regression equation to predict a person's salary. Assume that the variable A is the number of years of college. Assume that the variable B is the number of years of experience. Suppose the person has 7 years of college and 3 years of experience. What ...
*Friday, November 9, 2012 at 11:09pm*

**college algebra**

find the function that is finally graphed after the following transformations are applied to the graph of y=sqrt x in the order listed. 1. relected about the x-axis 2. shift down 9 units 3. shift left 2 units y=
*Friday, November 9, 2012 at 2:26pm*

**college algebra, Please help!!**

Answer the following function. f(x)=2x^2-x-1 A. Is the point (-2,9) on the graph of f? B. If x equals 2, what is fx? What point(S) are on the graph of f? c. if f(x)= -1, what is x? what point(s) are on the graph of f? d. what is the domain of f? e. List the x-intercpts, if any...
*Friday, November 9, 2012 at 1:11pm*

**college algebra, Please help!!**

Answer the following function. f(x)=2x^2-x-1 A. Is the point (-2,9) on the graph of f? B. If x equals 2, what is fx? What point(S) are on the graph of f? c. if f(x)= -1, what is x? what point(s) are on the graph of f? d. what is the domain of f? e. List the x-intercpts, if any...
*Friday, November 9, 2012 at 1:11pm*

**college algebra**

deteermine algebracially whether the given function is even,odd, or neither. f(x)= -3x-/9/
*Thursday, November 8, 2012 at 11:25pm*

**college algebra**

for the function f(x)=7/x+6, find the average rate of change of f from 1 to x.
*Thursday, November 8, 2012 at 11:22pm*

**college algebra**

write the function whose grapg is the graph of y=(x+5)^2, but is reflected about the y-axis. would it look like this: y=(x+5)-2??
*Thursday, November 8, 2012 at 11:20pm*

**college algebra**

For the given functions f and g find the following and state the domain of each. f(x)=sqrt x; g(x)=7x-3 A.what is the domain of f*g? B. What is the domain of f/g? Please show all work.
*Thursday, November 8, 2012 at 10:49pm*

**College Math**

i'm having trouble calculating this. can someone help please? A $7,000, 4%, 120-day note, dated March 20, is discounted on July 15. Assuming a 3% discount rate, the bank discount is: a) $1.74 b) $1.77 c) $7.11 d) $17.68 e) None of these .
*Thursday, November 8, 2012 at 1:35pm*

**College Math 111**

Assuming evey year is 365 days, and that you were counting one dollar each second,how long would it take to count 3.803 trillion dollars? Write your answers as years+days,rounded to the nearest day
*Thursday, November 8, 2012 at 12:27pm*

**college**

The measure of a third angle in an isosceles triangle is 82.5 more than the measure of the two equal angles. whats the angle of the third.
*Thursday, November 8, 2012 at 8:04am*

**statistic**

Suppose a random sample of 25 students is selected from a community college where the scores in the final exam (out of 125 points) are normally distributed, with mean equal to 112 and standard deviation equal to 12. Find the probability that the sample mean deviates from the ...
*Thursday, November 8, 2012 at 12:40am*

**College Algebra**

How much money would you have to invest at 8% compounded semiannually so that the total investment has a value of $2,280 after one year?
*Wednesday, November 7, 2012 at 4:22pm*

**Persuasive Wrtiting**

Teen Moms: Aren’t Ready Did you know that three out of ten teen girls in the U.S. will get pregnant at least once at the age of nineteen or younger, so if you totaled that up, it is about 750,000 pregnancies each year? Ninety-percent of teenagers won’t use some form ...
*Wednesday, November 7, 2012 at 1:54pm*

**College Physics**

The electric motor of a model train accelerates the train from rest to 0.660 m/s in 31.0 ms. The total mass of the train is 650 g. Find the average power delivered to the train during its acceleration.
*Wednesday, November 7, 2012 at 12:09pm*

**college algebra**

given the following rational, find the horizontal asympotes the vertical asymptotes if any and the oblique asymptotes if any f(x)=x^2-x-2 over 2x^2-x-10
*Tuesday, November 6, 2012 at 8:53pm*

**college algebra**

given the folowing quadratic equations find the vertex the axis of symmetry the intercept the domain the range the interval where the function is increasing andthe interval where the function is decreasing graph the function y=X^2+4x
*Tuesday, November 6, 2012 at 8:46pm*

**college math**

loverdale-Nurseries obtained a $60,000 loan at 7.5% compounded monthly to build an additional greenhouse. Construct a partial amortization schedule for payments of $1000 per month (except for a smaller final payment)showing details of the first 2 payments. Payments 56 and 57 ...
*Tuesday, November 6, 2012 at 6:28pm*

**college admission**

What are the foreign language requirements and how to get credit for them before attending for The Ohio State University?
*Tuesday, November 6, 2012 at 4:17pm*

**College Algebra**

3x-1/x^2-10x+26 Find all (real) zeros of the function Find all (real) poles of the function The function has... A horizontal asymptote at 0? A non-zero horizontal asymptote? A slant asymptote? None of the above
*Monday, November 5, 2012 at 11:52pm*

**College Physics**

A 220 air-track glider is attached to a spring. The glider is pushed in 12.0 against the spring, then released. A student with a stopwatch finds that 13 oscillations take 11.5s. What is the spring constant?
*Monday, November 5, 2012 at 11:41pm*

**College Algebra and Trigonometry**

Two guys wires for a radio tower make angles with the horizontal of 50 degree and 49 degree. If the ground anchors for each wide are 150feets apart, find the length of each wire assuming the wires are straight and find the height of the tower?
*Monday, November 5, 2012 at 5:54pm*

**college chemistry**

if 2.00g of Zn is allowed to react with 2.00g of CuSO4 according to the equation CuSO4(aq) + Zn(s)-----> ZnSO4 (aq)+ Cu(s) how many grams of Zn will remain after the reaction is complete ?
*Monday, November 5, 2012 at 10:39am*

**College Physic**

I am stuck on this question. Any help will be greatly appreciated! A 0.082 kg solid cylinder with a radius of 1.90 cm, is placed at the top of a 30º inclined plane of height 29.5 cm. If the inclined plane is not frictionless, and the cylinder does roll, determine the ...
*Sunday, November 4, 2012 at 9:34pm*

**algebra**

A grandmother is looking for a plan to finance her new grandchild’s college education. She has $25,000 to invest. Search the internet and locate a long-range investment plan, CD, Savings Bond, etc, for the grandmother. The plan is to earn compound interest. Calculate the ...
*Sunday, November 4, 2012 at 7:44pm*

**College Physic**

The tub of a washer goes into its spin cycle, starting from rest and gaining angular speed steadily for 9.58 s, at which time it is turning at 3.89 rev/s. At this point, the person doing the laundry opens the lid, and a safety switch turns off the washer. The tub smoothly ...
*Sunday, November 4, 2012 at 2:01pm*

**College Physics**

In 1986, the distance of closest approach of Halley’s comet to the Sun is 0.57AU. (1 AU is the mean Earth-Sun distance = 150 million kilometers.) The comet’s speed at closest approach is 54.97 km/s. (a) – By 1989, Halley’s comet had traveled to a distance ...
*Sunday, November 4, 2012 at 12:27pm*

**SAT Essay **

Assignment: Can knowledge be a burden rather than a benefit? Plan and write an essay in which you develop your point of view on this issue. Support your position with reasoning and examples taken from your reading, studies, experiences, or observations Essay: Knowledge can ...
*Saturday, November 3, 2012 at 7:14pm*

**College Finance**

Warp Tense Ltd. has the following assets: Current Assets (Temporary): $2,000,000 Current Assets (Permanent): $500,000 Capital Assets: $4,500,000 Total Assets: $7,000,000 Its operating profit (EBIT) is expected to be $0.45 million. Its tax rate is 30 percent. Shares are valued...
*Saturday, November 3, 2012 at 6:21pm*

**college physics**

A 90 kg rock climber is stationary off the side of an overhanging cliff hanging onto her climbing rope. Another rope is tied to her foot and is attached at the other end to her 30 kg rock-climbing dog, also hanging out 2 m below her. Tied to the dog’s foot is yet another ...
*Saturday, November 3, 2012 at 4:17pm*

**college physics**

A wet towel of mass 4 kg is hung in the center of a 6 m clothesline, so that the line makes an angle 10o with the horizontal. The tension in the line is closest to... 50N, 40N, 100N, 200N, or 10N
*Saturday, November 3, 2012 at 3:58pm*

**college math**

A $8700 personal loan at 5.5% compounded monthly is to be repaid over a 4 year term by equal monthly payments. a) calculate the interest and principle component of the 18th payment b) how much interest will be paid in the third year of the loan?
*Saturday, November 3, 2012 at 1:46pm*

**college algebra**

given function f(X)=X^3+3x findthe rate of change between the two stated values for x:1 to 2 find the equation of a secant line (1,f(1)and(2,f(2))
*Friday, November 2, 2012 at 11:36pm*

**college algebra--please**

I am not understanding this question and I have read the chapter many times. Please help. given the function of f(x)=4x-8 a. find the the rate of change between the stated values for x:5 to 7 b. find the equation of a secant line containing the given points (5,f(5)), and (7,f(...
*Friday, November 2, 2012 at 11:02pm*

**college algebra**

graph the following function using transformations, be sure to graph all of the stages on one grph, state the domain and range y= x^2 +12x
*Friday, November 2, 2012 at 5:09pm*

**college algebra**

given the function f(x)= x^3+3x find the rate of chnge between the two values x:1 to 2 find the equation of a secant line containing the given points (1,f(1) and (2,f(2))
*Friday, November 2, 2012 at 5:07pm*

**SAT Essay **

Assignment: Can knowledge be a burden rather than a benefit? Plan and write an essay in which you develop your point of view on this issue. Support your position with reasoning and examples taken from your reading, studies, experiences, or observations Essay: Knowledge can ...
*Friday, November 2, 2012 at 3:33pm*

**personal statement**

this is my personal statement. plese check my grammar and what other stuff i can add or remove? thanks Ever since I was a little kid and till a year ago, I really didn’t know what I wanted to be in life. I imagined myself to be a teacher when I was 8 years old. As I grew ...
*Friday, November 2, 2012 at 2:54pm*

**College Algebra**

Simplfy the expresión using the laws of exponentes . 1. (-2x^2*y^-4)^3 2. (-4x^-6y^3)(2x^3y^-9)
*Friday, November 2, 2012 at 2:31pm*

**college math**

A $8700 personal loan at 5.5% compounded monthly is to be repaid over a 4 year term by equal monthly payments. a) calculate the interest and principle component of the 18th payment b) how much interest will be paid in the third year of the loan?
*Friday, November 2, 2012 at 1:11pm*

**college algebra**

graph the following function using transformations, be sure to graph all of the stages one graph, state the domain and the range y=x^2+12x
*Friday, November 2, 2012 at 11:32am*

**college algebra**

given the functionf(x)=x^3+3x find the rateof change between the two stated values for x:1 to 2 find the equation of a secant line containig the given points (1,f(1))and (2,f(2))
*Friday, November 2, 2012 at 11:28am*

**college algebra**

For the given equation list the intercepts. Y= -2X/(X^2+1) I think I Have this right I am not for sure? y=-2x/(x^2+1) (0)=(-2x/x^2+1) -2x/x^2+1=0 -2/x+1=0 -2/x+1+0 -2/x*x+1*x=0*x -2+x=0 x=2 y-intercept y= -2*0/(0)^2+1 y=o/0^2+1 y=0+1 y=0/0+1 x-intercept:(2,0) y-intercept:(0,0)
*Wednesday, October 31, 2012 at 9:07pm*

**college math **

a math student borrowed $9300.00 from his local bank at 7% compounded quarterly to pay for his studies. the loan is to be repaid by equal payments at the end of every quarter over a two year term. a)construct the amortization schedule for the loan. b)calculate the total interest.
*Wednesday, October 31, 2012 at 3:20pm*

**statistik and probability**

n a college class of 250 graduating seniors 50 have jobswaiting. 10 are going to medical school, 20 are going to lawschool, and 80 are going to various other kinds of graduateschools. Select one graduate at random. a. What is the probability that the student is going ...
*Wednesday, October 31, 2012 at 11:14am*

**college math**

two bakeries produce three types of cookies, chocolate chip, sugar, and peanut butter. the cookies are produced in batches containing some of each type of cookie. the cooks will not break up a batch, so you must buy an entire batch of cookies if you want any cookies. mrs. ...
*Wednesday, October 31, 2012 at 10:40am*

**General Chemistry 1 college class **

The tomato is dropped. What is the velocity, , of the tomato when it hits the ground? Assume 82.7 of the work done in Part A is transferred to kinetic energy, , by the time the tomato hits the ground. Express your answer numerically in meters per second
*Tuesday, October 30, 2012 at 6:22pm*

**college physics**

A cruise ship of seniors is moving due west with an engine speed of 60km/hr when it encounters a current from the North at 20Km/hr. What is its relative velocity due to this current? (speed and angle) What course correction does it need to continue due west? (new angle and ...
*Tuesday, October 30, 2012 at 5:42pm*

**college physics**

A cannonball shot at an angle of 60 Degrees had a range of 196m. What was its initial speed?
*Tuesday, October 30, 2012 at 5:39pm*

**college physics**

A 3rd baseman is throwing a ball to 1st base which is 39.0m away. It leaves his hand at 38.0m/s at a height of 1.50m from the ground and makes an angle of 20 Degrees. How high will it be when it gets to 1st base.
*Tuesday, October 30, 2012 at 5:38pm*

**college physics**

A ball is thrown from a 20.0m high building and hits the ground 6.0m from the building. With what horizontal velocity was it thrown?
*Tuesday, October 30, 2012 at 5:35pm*

**College Physics**

At t=0 the current to a dc electric motor is reversed, resulting in an angular displacement of the motor shaft given by theta(t)= 258t - 20.4t^2 - 1.47t^3 How many revolutions does the motor shaft turn through between the time when the current is reversed and the instant when ...
*Tuesday, October 30, 2012 at 1:24pm*

**college physics**

When the displacement of a mass on a spring is one half of the amplitude of its oscillation, what fraction of the total energy is kinetic energy?
*Tuesday, October 30, 2012 at 1:22pm*

**college algebra**

find the center and radius of the circle. Write in equation form. (4,8) and (13,8)
*Monday, October 29, 2012 at 11:03pm*

**college algebra**

find the line that is perpendicular to the line y=1/3x+4 and contains the point (-9,0)
*Monday, October 29, 2012 at 10:40pm*

**college algebra**

find the equation for the line with the given properties. Express in slope intercept. containing points P=(-5,1)and (-3,0)
*Monday, October 29, 2012 at 10:37pm*

**Business Operations**

I am wondering if someone could let me know whether my calculations for the critical ratio is correct. I've included the problem and my portion of the work I'd like some help on. Hi-Ho Yo-Yo, Inc. It was a little past 9:00 on a Monday morning when Jeff Baker walked ...
*Monday, October 29, 2012 at 8:45pm*

**Chemistry (College) URGENT**

1.6g of an unknown monoprotic acid (HA) required 5.79 mL of a 0.35 M NaOH solution to reach the equivalence point. Determine the molar mass of the acid and given that the pH at the half way point to the equivalent point is 3.86. Calculate the Ka of the unknown acid.
*Monday, October 29, 2012 at 6:45pm*

**college algebra**

list the intercepts and test for symmetry. y=-8x/x^2=49
*Sunday, October 28, 2012 at 10:08pm*

**college algebra**

find the equation for the line with the given properties. Express in slope intercept form. Containing points P=(-3,-4) anda Q=(-1,-1)
*Sunday, October 28, 2012 at 9:48pm*

**college algebra**

find the equation of the line in slope inntercept form. (-1,1) and (-2,1) I know that I have to use m=y^2-y^1/x^2-x^1 which is slope form then I get: m=1-(1)/-2-10 which I substitue m= ? is where I get lost but then I know the next part is: y=mx+b then I am lost from here on ...
*Sunday, October 28, 2012 at 9:38pm*

**college algebra**

if (a,-20) is a point on the graph of y=x^2+9x, what is a?
*Sunday, October 28, 2012 at 8:49pm*

**college algebra**

the midpoint of the line segment from p1 to p2 is (-1,3). if p1=(-6,7) what is p2?
*Sunday, October 28, 2012 at 7:33pm*

**College math**

(2-3i)(3+5i)
*Saturday, October 27, 2012 at 8:38pm*

**College math**

-15-√-18/33
*Saturday, October 27, 2012 at 8:36pm*

**College math**

(-2+√-11)^2
*Saturday, October 27, 2012 at 8:35pm*

**College math**

√-81- √-144
*Saturday, October 27, 2012 at 8:34pm*

**College math**

3/4+i
*Saturday, October 27, 2012 at 8:32pm*

**College math**

-8i(2i-7)
*Saturday, October 27, 2012 at 8:31pm*

**College math**

(-2+6i)+(4-i)
*Saturday, October 27, 2012 at 8:30pm*

**Art 101 college**

Explain how Florence reflects the ideals of the dominant city-state and how some of the geographical, economical, social, and artistic forces shape this ideal. Use one example from Gardner’s Art through the Ages and one example from the Internet.
*Saturday, October 27, 2012 at 8:15pm*

**college math**

3.15 A bank branch located in a commercial district of a city has developed an improved process for A bank branch located in a commercial district of a city has developed an improved process for serving customers during the noon-to-1:00 p.m. lunch period. The waiting time, in ...
*Saturday, October 27, 2012 at 6:11pm*

**college algebra--Please help Reiny please**

You helped me with this question and this is what I got but my Professor says that each x and y intercept needs to have a coordinate. Where did I go wrong?? Can you help me? x^2+y^2+4x+2y-20=0 x^2+4x+4+y^2-2y+1=20+4+1 (x+2)^2+(y+1)^2=25--this is where you helped me. Then I ...
*Friday, October 26, 2012 at 9:29pm*

**math**

A class of college freshmen is composed of 110 students. Among these students, 75 are taking English, 52 are taking history, 50 are taking math, 33 are taking English and history, 30 are taking English and Math, 22 are taking History and Math, and 13 are taking all three ...
*Friday, October 26, 2012 at 6:55pm*

**math**

A class of college freshmen is composed of 110 students. Among these students, 75 are taking English, 52 are taking history, 50 are taking math, 33 are taking English and history, 30 are taking English and Math, 22 are taking History and Math, and 13 are taking all three ...
*Friday, October 26, 2012 at 6:17pm*

**college algebra**

write the equation of the circle in standard form find the center radius, intercept and graph circle x^2 +y^2+8x+2y+8=0
*Friday, October 26, 2012 at 5:36pm*

**college algebra**

for the given equation list the intercepts and test for symmetry y = x^3 -512
*Friday, October 26, 2012 at 5:31pm*

**college calc**

Approximate the square root of 64.3, y=x^(1/2). Starting point is the square root of 64.
*Friday, October 26, 2012 at 11:28am*

**college algebra**

Write the equation of the circle in standard form. Find the center, radius and intercepts. x^2 + y^2 + 4x + 2y - 20 = 0
*Thursday, October 25, 2012 at 10:31pm*

**college algebra**

y=3x/x^2 + 81 for the given equation, list the intercepts and test for symmetry.
*Thursday, October 25, 2012 at 10:27pm*

**college chemistry**

If KHP sample #1 requires 27.30 mL of NaOH solution to reach an endpoint, what volume should be required for samples #2 and #3?
*Thursday, October 25, 2012 at 3:26pm*

**College Chemistry**

What volume of the solution in 5a would be necessary to react completely with 23.00mL of 0.549M NH3 according to the equation: NiSO4+6NH3 -> [Ni(NH3)6]SO4 The molarity of ta is 1.667 x 10^-4M
*Thursday, October 25, 2012 at 1:40am*

**College Chemistry**

The specific Heat of gold is 0.128 J/g degrees Celsius. How much heat would be needed to warm 250.0g of gold from 25.0 degrees Celsius to 100.0 degrees Celsius
*Thursday, October 25, 2012 at 12:52am*

**College Chemistry**

Calculate the number of Joules released when 75.0 g of water are cooled from 100.0 degrees Celsius to 27.5 degrees Celsius
*Thursday, October 25, 2012 at 12:47am*

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Post a New Question | Current Questions