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April 20, 2014

Homework Help: College

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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

College Physics
a=(V-Vo)/t=(0.660-0)/0.031s=21.3m/s^2. F = m*a = 0.650*21.3 = 13.85 N. d = Vo*t + 0.5a*t^2. d = 0 + 0.5*21.3*(0.031)^2 = 0.01023 m. P = F*d/t = 13.85 * 0.01023 / 0.031=4.57 Joules/s = 4.57 Watts.
Thursday, November 8, 2012 at 7:10pm

College Math 111
365 days * 86400 sec/day = 31,536,000 = 3.1536 * 10^7 3.803 * 10^12 / 3.1536 * 10^7 = 1.2059233891 * 10^5, or about 120,592.33891 years or, 120,592 years 124 days reasonable, since a billion seconds is about 30 years.
Thursday, November 8, 2012 at 2:08pm

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
Let A be one of the two equal angles, abd B be the apex angle. 2A + B = 180 A - B = 82.5 3A = 262.5 A = 87.5 B = 5 degrees is the "third angle"
Thursday, November 8, 2012 at 8:14am

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 physics
Newton's second law states that for every action there is an equal and opposite reaction. Draw a force diagram. It is moving at a constant velocity. Your force diagram for an object moving at a constant velocity is the same as your force diagram for an object at rest, so ...
Wednesday, November 7, 2012 at 6:20pm

College Algebra
P(1 + .08/2)^(2*1) = 2280 P = 2108.00
Wednesday, November 7, 2012 at 5:15pm

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
f = (x-2)(x+1)/(2x-5)(x+2) That should make it easy to gather the needed info.
Tuesday, November 6, 2012 at 9:01pm

college algebra
y = (x+2)^2 - 4 you should be able to read off all the desired information from that. If you still have trouble, come on back and show where you got stuck.
Tuesday, November 6, 2012 at 8:57pm

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
http://osu.intelliresponse.com/index.jsp​?interfaceID=1&requestType=NormalRequest​&source=3&question=What+are+your+ACT+/+S​AT+requirements%3F&id=147
Tuesday, November 6, 2012 at 4:41pm

college admission
Did you click on the little down-arrow at the right of "View minimum college prep requirements"?? It's very specific.
Tuesday, November 6, 2012 at 4:40pm

college admission
I've already checked that website along with multiple others. I have to write a page report on it. So I was just wondering if you have any additional information that would help?
Tuesday, November 6, 2012 at 4:35pm

college admission
http://undergrad.osu.edu/admissions/fres​hman/index.html
Tuesday, November 6, 2012 at 4:29pm

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 Physics
when the radius remains same, the speed should be increased.
Tuesday, November 6, 2012 at 12:07pm

College Algebra
odd to be using the term "pole" which is usually reserved for functions of a complex variable. Here it is apparently used to indicate a vertical asymptote, since for a complex function f(z), a pole at z=c means lim f(z) = ∞ z→c
Tuesday, November 6, 2012 at 10:58am

College Algebra
I see no = sign in your function, functions are equations. I see no brackets, but I will assume you mean f(x) = (3x-1)/(x^2 - 10x + 26) solving for x^2-10x+26=0 gives no real roots, so there are no vertical asymptotes if f(x) = 0, then x=1/3 so the x-intercept is 1/3 as x ---&...
Tuesday, November 6, 2012 at 8:30am

College Physics
Your first two numbers (220 and 12.0) require dimensions.
Tuesday, November 6, 2012 at 3:24am

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 Physic
If the inclined plane is not frictionless, you have to know the coefficient of friction. If it is frictionless, then PE=KE=KE(transl) +KE(rot) mgh= mv²/2 + Iω²/2. I=mR²/2, ω=v/R mgh= mv²/2 + mR² v²/4 R²= = 3mv²/4 v=sqrt(4gh/3)
Monday, November 5, 2012 at 12:36pm

college chemistry
This is a limiting reagent problem. I know that because amounts are given for BOTH reactants. However since the problem asks for the amount of Zn remaining, one can assume that CuSO4 is the limiting reagent. I will show how we can confirm that. CuSO4(aq) + Zn ==> ZnSO4(aq...
Monday, November 5, 2012 at 11:26am

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

College Algebra
According to my homework, and I just missed it but it gives me the correct answer this is 14.1 billion people.
Sunday, November 4, 2012 at 9:06pm

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

Transistion to College Math
50
Sunday, November 4, 2012 at 5:06pm

SAT Essay Critiques
I cant answer that without seeing your outline and scratch paper. In general, your organization is ok, a couple of them have weak conclusions, and a couple had weak supporting arguments. A couple were wordy. One in particular had readability problems, mainly long, complex ...
Sunday, November 4, 2012 at 4:53pm

ap chemistry
I agree on the tutor. Also, get another text (college used book store) to see the same material in differing words. On the ap chem board exam, nationally, most do not do well. I have to be honest, most ap chem students need to retake college chem if for nothing else, the lab ...
Sunday, November 4, 2012 at 4:44pm

college physics
When the bodies are at rest, the tension in the ropess just equal the weight that is suspended beneath them. The lower body (the stick) has gravity down of m3•g=2•9.8=19.6 N and the tension (T3) in the lower string is T3 = 19.6 N. The rope between the climber and the...
Sunday, November 4, 2012 at 4:01pm

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

Note to zachary - college algebra
always check back to see if your question has been answered before posting it again. http://www.jiskha.com/display.cgi?id=135​1890441 This will avoid unnecessary duplication by tutors of the same work.
Saturday, November 3, 2012 at 8:40am

college algebra--please
rate of change is (change in y)/(change in x) f(5) = 12 f(7) = 20 y changes from 12 to 20 as x changes from 5 to 7: rate of change is thus (20-12)/(7-5) = 8/2 = 4 Note that the rate of change is the same as the slope of the line f(x)=4x-8 The secant line is thus the line from...
Saturday, November 3, 2012 at 3:25am

college algebra
f(1) = 4 f(2) = 14 rate of change = slope = 10 line containing (1,4) with slope 10 is (y-4) = 10(x-1)
Saturday, November 3, 2012 at 2:57am

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
f(1) = 4 f(2) = 14 rate of change = slope = 10 line containing (1,4) with slope 10 is (y-4) = 10(x-1)
Friday, November 2, 2012 at 8:16pm

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