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April 17, 2014

April 17, 2014

Post a New Question | Current Questions

**college algebra**

find the complex zeros of the polynomial function. write f in factored form. f(x)=x^3-10x^2+37x-52
*Sunday, November 18, 2012 at 10:53pm*

**college**

√(9v+7) = 5 9v+7 = 25 9v = 18 v = 2
*Sunday, November 18, 2012 at 8:01pm*

**college finite math**

marginal cost is e^-x
*Sunday, November 18, 2012 at 7:58pm*

**college finite math**

Find the marginal average cost function: C(x)=10-e^-x
*Sunday, November 18, 2012 at 6:24pm*

**college**

(16/25)- 3/2 negative 3/2 is an exponent
*Sunday, November 18, 2012 at 4:52pm*

**penn foster**

Answer "B" is correct! Typical ocean currents follow a clockwise pattern in the northern Hemishphere BUT rotate CounterClockwise in the SOUTHERN Hemisphere! Good luck with your Penn Foster studies! Some courses offered by Penn foster are ok, But I've found out ...
*Sunday, November 18, 2012 at 4:05pm*

**math 104**

From a survey of 100 college students, a marketing research company found that 50 students owned iPhones, 45 owned cars, and 35 owned both cars and iPhones.
*Sunday, November 18, 2012 at 3:53pm*

**penn foster world history**

I can say that I could not agree more with the opening statement made about Penn Foster. Onlice classes have little to do with real learning from Penn Foster and instructional help is most often not available because of the conflict with THEIR working hours and adults going ...
*Sunday, November 18, 2012 at 3:33pm*

**College Math**

That's how the question is in the book.
*Sunday, November 18, 2012 at 3:06pm*

**college**

square root 9v+7=5
*Sunday, November 18, 2012 at 2:31pm*

**Chemistry..**

You can go to a 4 year college to study pre-pharmacy, then you go on to a graduate program for pharmacy. To get into that program you need to take the PCAT. In high school keep your grades up, do extra curricular activities, some volunteer work, and research everything ...
*Sunday, November 18, 2012 at 1:48am*

**Chemistry..**

I want to be a pharmacist, so after high school do I go to a 4 year college and then another 4 year of pharmacy school? And also, how can I be well prepared as a high school student?
*Sunday, November 18, 2012 at 12:57am*

**college math**

A lawn mower handle makes an angle of 60° with the ground. A woman pushes on the handle with a force of 30 pounds. How much work is done in moving the lawn mower a distance of 75 feet on level ground?
*Saturday, November 17, 2012 at 11:06pm*

**College Math (?)**

What is your question?
*Saturday, November 17, 2012 at 8:56pm*

**College Math **

Suppose the supply and demand for a certain videotape are given by: Supply: p=1/3q^2 Demand: p=-1/3q^2+48
*Saturday, November 17, 2012 at 8:04pm*

**College Algebra**

In an assembly line of a factory, which produces networking switching hubs, two robots are utilized. The first one (A) is able to produce 40 microchips per hour, whereas the second one (B) produces 30 microchips per hour. For a total production of 400 microchips, the two ...
*Friday, November 16, 2012 at 8:37pm*

**college algebra**

just do long division (polynomial division)
*Friday, November 16, 2012 at 7:49pm*

**math**

At a certain college, there are 7 men for every 5 women. If there are 440 more men than women, what is the total enrollment?
*Friday, November 16, 2012 at 5:53pm*

**math**

At Strawberry State College, the ratio of females to males is 2:1. If there are 2100 students, how many are female and how many are male?
*Friday, November 16, 2012 at 5:52pm*

**Personal Dimension of Educatio**

Select the sentence that has correct subject-verb agreement. 1. Applied mathematics was my major in college. 2. Applied mathematics were my major in college. My answer is 1
*Friday, November 16, 2012 at 12:34pm*

**college algebra**

use the remainder theorem to find the remainder when f(x) is divided by x-2. Then use the factor theorem to determine whether x-2 is a factor of f(x). f(x)=4x^3-10x^2+13x-13
*Thursday, November 15, 2012 at 8:42pm*

**college algebra**

As soon as I posted that I saw at the bottom the realted questions where someone had posted the same question back in August. Yes, it does. Thanks!!
*Thursday, November 15, 2012 at 6:14pm*

**college algebra--need help please!!**

(Using the seven steps to analyzing the rational function of R), analyze the graph of the following function. R(x)=x^2-49/x^4-16
*Thursday, November 15, 2012 at 6:12pm*

**college algebra**

x^4-256 (x^2-16)(x^2+16) (x-4)(x+4)(x^2+16) that should make it clear.
*Thursday, November 15, 2012 at 5:45pm*

**college algebra**

should be f(x)=x^4-256
*Thursday, November 15, 2012 at 4:46pm*

**college algebra**

find all the zero's of the followig polynomial. write the polynomial in form. f(x)=x^2-256
*Thursday, November 15, 2012 at 4:46pm*

**thermochemistry college**

Yes! ...She has a big butt!
*Thursday, November 15, 2012 at 12:22am*

**college algebra, Please help!!**

which of the following best describes how the graph of f can be obtained from the graph of y=1/x^2? f(x)=14/x^2 choose the correct answer a.vertical stretch by a factor of -4 b. reflection over the y-axis, vertical shrink by a factor of 4 c. reflection over the x-axis, stretch...
*Wednesday, November 14, 2012 at 7:42pm*

**college algebra, Please help!!**

same problem as in your previous post is it √x + 5 or √(x+5)
*Wednesday, November 14, 2012 at 6:30pm*

**college algebra, Please help!!**

Ladybug, you often tend to forget to put in brackets, so if you shift y = 3√x " to the left 3 units" (d) you get y = 3√(x+3) whereas y = 3√x + 3 would have been "up 3 units" (b)
*Wednesday, November 14, 2012 at 6:22pm*

**college algebra, Please help!!**

the graph was shifted up 3 from the original graph that's all the question wants to know
*Wednesday, November 14, 2012 at 5:35pm*

**college algebra, Please help!!**

the graph of y=1/3 3square root x+5 can be obtained from the graph of y=3square root x by which transformations? Horiztonal shift: a. 5 units to the left b. 3 units to the right c. 3 units to the left d. 5 units to the right By what factor of y=3 square root x be stretched or ...
*Wednesday, November 14, 2012 at 5:28pm*

**college algebra, Please help!!**

How can the graph of g(x)=3square root x+3 be obtained from the graph of g(x)= 3 square root x? A. shift the graph 3 units right b. shift the graph 3 units up c. shift the graph 3 units down d. shift the graph 3 units left I am having problems with the square roots. Can ...
*Wednesday, November 14, 2012 at 5:17pm*

**college algebra, Please help!!**

How can the graph of g(x)=3square root x+3 be obtained from the graph of g(x)= 3 square root x? A. shift the graph 3 units right b. shift the graph 3 units up c. shift the graph 3 units down d. shift the graph 3 units left I am having problems with the square roots. Can ...
*Wednesday, November 14, 2012 at 5:17pm*

**college algebra, Please help!!**

How can the graph of g(x)=3square root x+3 be obtained from the graph of g(x)= 3 square root x? A. shift the graph 3 units right b. shift the graph 3 units up c. shift the graph 3 units down d. shift the graph 3 units left I am having problems with the square roots. Can ...
*Wednesday, November 14, 2012 at 5:17pm*

**college algebra**

use completeing the square to describe the graph of f(x)=4-16x-x^2 support your answers graphically
*Wednesday, November 14, 2012 at 5:06pm*

**college algebra**

y is never negative since y=0 at x=-6 and x=1, it touches the x-axis there, but does not cross it. the graph just touches the x-axis at roots of even multiplicity, since it does not change sign there.
*Wednesday, November 14, 2012 at 4:49pm*

**college algebra**

Reiny did one just about like this. Where do you get stuck?
*Wednesday, November 14, 2012 at 4:33pm*

**college algebra**

I assume you mean q(x) = (3x^2 - 11x - 4)/(5x^2 - 16x - 16) then q(x) = (3x+1)(x-4)/( (5x+4)(x-4) ) = (3x+1)/(5x+4) , x ≠ 4 vertical asymptote : x = -4/5 horizontal ... : y = 3/5 no oblique there is a "hole" at (4, 13/24)
*Wednesday, November 14, 2012 at 4:00pm*

**college algebra**

find the intercept of the equation (x+6)^2(x-1)^2 does this crosses the x axis the smaller or touches the x axis or does it touch at the larger x intercept or crosses the larger
*Wednesday, November 14, 2012 at 3:45pm*

**college algebra**

q(x)=3x^2-11x-4/5x^2-16x-16 what are the oblique horizontal vertical asyptote
*Wednesday, November 14, 2012 at 3:20pm*

**college algebra**

determine the quadratic function f whose vertex is (2,-4) and passes through (3,-1) f(x)= what? type answer in form of f(x)=ax^2+bx-c
*Wednesday, November 14, 2012 at 2:47pm*

**college algebra**

review what you know about the parabola y = a(x-h)^2 + k Here, we have y = -3(x+5)^2 + 5 vertex at (-5,2) axis at x = -5 y-intercept at (0,5) x-intercepts where 3x^2+30x+70 = 0, or x = 1/3 (-15±√15) domain is all reals range is all reals <= 5 increase for x <...
*Wednesday, November 14, 2012 at 2:20pm*

**college algebra**

im still having a hard time please help a little more
*Wednesday, November 14, 2012 at 2:07pm*

**college algebra**

since we know the vertex,start with y = a(x-1)^2 - 4 but (0,-3) lies on it , so ... -3 = a(0-1)^2 - 4 -3+4 = a a = 1 y = (x-1)^2 - 4
*Wednesday, November 14, 2012 at 2:02pm*

**college algebra**

you can see it's a parabola. By completing the square, you get y = -3(x^2 + 10x + 25) + 5 y = -3(x+5)^2 + 5 you should be able to read off most of the answers you need from that.
*Wednesday, November 14, 2012 at 1:54pm*

**college algebra**

determine the quadratic function of f whose graph is the vertex of (1,-4) and the y-intercept is -3.
*Wednesday, November 14, 2012 at 1:44pm*

**college algebra**

F(X)= -3x^2 -30x-70 what is the vertex what is the axsis of symmetry what are the intercept what is the domain what is the range intervals increase intervals decrease
*Wednesday, November 14, 2012 at 12:26pm*

**College Algebra**

since x^2 = y+7, (y+7) + y^2 = 13 y^2 + y - 6 = 0 (y+3)(y-2) = 0 y = -3 or 2 so, x = ±2 or ±3 the solutions are (-3,2)(3,2)(2,-3)(-2,-3) How did you arrive at your results?
*Wednesday, November 14, 2012 at 11:49am*

**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*

**College Algebra**

f(x) = a(x-1)(x-(3+2i))(x-(3-2i)) = a(x-1)(x^2-6x+13) = a(x^3-7x^2+19x-13 f(-1) = a(-1-7-19-13) = 40a = 2 so, a = 1/20
*Wednesday, November 14, 2012 at 10:34am*

**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 chemistry**

Yeah very close but the real answer was ballsack milk aka 8,.222mols/g
*Tuesday, November 13, 2012 at 11:47pm*

**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**

assume all seats are sold number or $25 tickets --- x number of $40 tickets --- 6000-x 25x + 40(6000-x) = 192000 solve for x , then sub into my definitions
*Tuesday, November 13, 2012 at 8:57pm*

**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*

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

Reiny, It seems like Calculus, but it actually falls under college algebra. Because I can get some calculus tutoring and the answers fit. Thank you for the help, it is greatlt appreciated!!!
*Tuesday, November 13, 2012 at 3:51am*

**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**

let the rate be i, where i is expressed as a decimal 2500(1+i)^2 = 2500+650 (1+i)^2 = 3150/2500 = 1.26 take √ of both sides 1+i = √1.26 1+i = 1.12249 i = .12249 or 12.25% , Wow, I remember those good old days
*Monday, November 12, 2012 at 11:34pm*

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

You can complete the square .... y = -(x^2 + 6x +9 - 9 = -( (x+3)^2 - 9) = -(x+3)^2 + 9 vertex is (-3, 9) alternate method: for y = ax^2 + bx + c the x of the vertex is -b/2a for for yours the x of the vertex is -(-6)/-2 = -3 sub into the function ... y = -9 + 18 = 9 so the ...
*Monday, November 12, 2012 at 11:17pm*

**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**

What's the solvent? Water? 9% v/v means 9.0 mL propyl alcohol in 100 mL solution. You want 4 mL propyl aocohol. (9 mL/100 mL) x ? = 4 mL ? = 4*100/9 = ?
*Monday, November 12, 2012 at 9:19pm*

**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*

**English 8R - Homework Check - Part 2**

Also -- students who pass an AP test get college credit for that class. I don't see any grammatical mistakes. :-)
*Monday, November 12, 2012 at 6:12pm*

**college algebra**

Write the arithmetic sequence 16,20,24,28,in the standard form: An.....?
*Monday, November 12, 2012 at 1:08pm*

**College Algebra**

another way would be 3log(x-1)+log(4) = 5 3log(x-1) + 2 = 5 3log(x-1) = 3 log(x-1) = 1 x-1 = 2^1 = 2 x = 3
*Monday, November 12, 2012 at 12:34pm*

**College Algebra**

recall that n*log(a) = log(a^n) so, using base 2, we have 3log(x-1)+log(4) = 5 log(x-1)^3 + 2 = 5 log(x-1)^3 = 3 (x-1)^3 = 2^3 x-1 = 2 x = 3 check: 3log2 + log4 = 5 3+2 = 5
*Monday, November 12, 2012 at 12:32pm*

**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**

move the -7 over: 7x^2 - 10x + 13 = 0 using the quadratic formula, x = (10 +/- sqrt(100-364))/14 = (5 +/- sqrt(66) i)/7
*Monday, November 12, 2012 at 12:06am*

**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**

What is the value of the zero with the smaller multiplicity from that same equation?
*Sunday, November 11, 2012 at 7:21pm*

**college algebra**

x = 2 , multiplicity: 1 x = -4 , multiplicity : 3 crosses at both x=2 and x=-4 (odd multiplicities )
*Sunday, November 11, 2012 at 5:58pm*

**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**

after x years, the two amounts will be equal: 1100*e^.08x = 1200*(1+.08/365)^(365x) x = 9926.18535
*Sunday, November 11, 2012 at 1:38pm*

**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 chemistry**

explain the orgin of X-rays
*Saturday, November 10, 2012 at 11:33pm*

**college algebra**

y = (x-2)(x+1)/((x+3)(2x-7) ) a) as x --->∞ the curve is approximated by y = x^2/2x^2 = 1/2 approaching from below y=1/2 for positive x's and approaching from above y = 1/2 for negative large x's Anyway, y = 1/2 is the horizontal asymtote b) at vertical ...
*Saturday, November 10, 2012 at 6:32pm*

**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*

**Chemistry**

Most schools with which I'm familiar have a pre-pharm program. Take that and apply to a pharmacy school OR talk to the pharmacy school. They may have a pharmacy program that takes you from entering freshman to graduate. In fact, the one pharmacy school I know about PREFERS...
*Saturday, November 10, 2012 at 4:29pm*

**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**

The answer is 3. Since the y = -√(x+2) - 9 (-) means reflect by x-axis -9 means 9 units down +2 means shift left 2 units The sign makes a difference For shift if its negative it shift right and positive left.
*Friday, November 9, 2012 at 9:17pm*

**college algebra, Please help!!**

A. is f(-2) = 9? if it is, then the point (-2,9) is on the graph. Otherwise, it's not on the graph B.Plug 2 into f(x) f(2) = 2 * (2^2) - 2 - 1 The points on this graph are (2, f(2)) C. Solve -1 = 2*x^2-x-1 You should find two solutions for x. D. The domain of f is the ...
*Friday, November 9, 2012 at 4:56pm*

**college algebra**

1. y = -√x 2. y = -√x - 9 3. y = -√(x+2) - 9
*Friday, November 9, 2012 at 3:35pm*

**college algebra, Please help!!**

Do you realize that f(x) = 2x^2 - x - 1 and y = 2x^2 - x - 1 say the same thing ? A) sub in the values x = -2 and y - 9 and see if they satisfy the equation LS = 2(-2)^2 - (-2) - 1 = 8 + 2 + 1 = 9 RS = 9 = LS Yes , the point (-2,9) does lie on the graph. B) replace x with 2 ...
*Friday, November 9, 2012 at 3:22pm*

**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**

Thnaks Steve!!
*Friday, November 9, 2012 at 12:50pm*

**college algebra**

domain of √x is x>=0 domain of 7x-3 is all reals f*g = √x (7x-3) domain is now restricted to x>=0 f/g = √x/(7x-3) now the domain excludes values where the denominator is zero. So, domain is all x>=0 except x = 3/7
*Friday, November 9, 2012 at 2:57am*

**college algebra**

Nope. Replace x by -x: y = (-x+5)^2 y = (x-5)^2 The vertex moves from x = -5 to x = +5
*Friday, November 9, 2012 at 2:51am*

**college algebra**

f(x) - f(1) ------------ x-1 7/(x+6) - 1 ------------- x-1 7 - (x+6) ----------- (x-1)(x+6) 1-x -------------- (x-1)(x+6) -1/(x+6)
*Friday, November 9, 2012 at 2:48am*

**college algebra**

neither. x is odd 9 is even
*Friday, November 9, 2012 at 2:46am*

**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*

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