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March 28, 2015

March 28, 2015

Post a New Question | Current Questions

**College Physics**

A 6107 kg elevator is moving 4.6 m/s up. The tension in the elevator cable is 66,512.6 N. Determine the acceleration of the elevator (state the appropriate mks units).
*Sunday, September 9, 2012 at 2:24pm*

**College Biology**

Calculate the concentration in Moles for a 5mgMgCl2 sample in 2L of solution. Then how many ions are in it?
*Sunday, September 9, 2012 at 2:03pm*

**College Algebra**

The period (the time required for one complete swing) of a simple pendulum varies directly as the square root of its length. If a pendulum 12 feet long has a period of 4 seconds, find the period of a pendulum 3 feet long.
*Sunday, September 9, 2012 at 1:52am*

**College Physic**

Here is the Hw question: An archerfish hunts by dislodging an unsuspecting insect from its resting place with a stream of water expelled from the fish’s mouth. Suppose the archerfish squirts water with a speed of 2.3 m/s at an angle of 50 degrees above the horizontal, ...
*Saturday, September 8, 2012 at 9:39pm*

**College Physic**

Here is the Hw question: An archerfish hunts by dislodging an unsuspecting insect from its resting place with a stream of water expelled from the fish’s mouth. Suppose the archerfish squirts water with a speed of 2.3 m/s at an angle of 50 degrees above the horizontal, ...
*Saturday, September 8, 2012 at 7:32pm*

**college algebra**

How do you solve f(x)=square root of 2x+1 using the difference quotient? I need to see the steps.
*Friday, September 7, 2012 at 3:04pm*

**college physics**

A 2000kg van and a 1500 kg car both travelling at 40ms^-1 in opposite directions collide head on and lock together. what are their speed and direction immediately after the collision?
*Friday, September 7, 2012 at 11:47am*

**college physics**

in a pinball machine, a force of 24 N is used to compress a spring a distance of 0.080m. a. What is the potential energy stored in the spring? b. What is the maximum speed tha it van produve in a ball of mass 0.15kg?
*Friday, September 7, 2012 at 11:38am*

**College Finite**

Assume that the student has a cup with 13 writing implements: 7 pencils, 4 ball point pens, and 2 felt-tip pens. In how many ways can the selection be made if no more than one ball point pen is selected?
*Thursday, September 6, 2012 at 5:43pm*

**college calc**

Give a formula for the function illustrated using a vertical shift of an exponential function. The two points marked on the graph are A=(−1,17) and B=(1,2). The red horizontal line is given by y=1, and is a horizontal asymptote of the function. What is the equation?
*Thursday, September 6, 2012 at 4:16pm*

**college algebra**

use the given zero to find the remaining zeros of the function h(x)=x^4-15x^3+60x^2+70x-816 zero: 5-3i
*Wednesday, September 5, 2012 at 9:37pm*

**Nutrition**

Josephine is a 20 year old female who is present for an eating disorder not otherwise specified. She currently teaches salsa lessons at the community college and is in her last semester of college. She reports she is living at home and the food her mom prepares is not the ...
*Wednesday, September 5, 2012 at 9:37pm*

**college alg :(**

if f(x)=lnx, g(x)=e^3x, and h(x)=x^4 find following A)(f of g)(x)and the domain of f of g B) (g of f)(x) and the domain of g of f C) (f of h)(x) and the domain of f of h
*Wednesday, September 5, 2012 at 9:31pm*

**college alg**

consider the function f(x)=9/x and g(x)=9/x find f(g)x))and any values that may be excluded what is g(f(x)) and any values that may be excluded and functions f and g inverse of eachother
*Wednesday, September 5, 2012 at 9:23pm*

**college alg**

the function f(x)=6x+9/3x-7 is one to one. find its inverse and check your answer. f^-1(x)=? please show work
*Wednesday, September 5, 2012 at 8:55pm*

**college alg**

solve the following inequality x^2(8+x)(x-5)/ (x+5)(x-2)> or equal too 0 this looks like a fraction please show work
*Wednesday, September 5, 2012 at 8:31pm*

**college elg**

the function f(x)=6x+9/3x-7 find inverse and check it f^-1(x)=? please show work
*Wednesday, September 5, 2012 at 8:29pm*

**college alg**

solve the following logarithm equation log (4x+7)=1+log(x-6) x=? please show work
*Wednesday, September 5, 2012 at 8:24pm*

**college alg**

the function f(x)=6x+9/3x-7 find the inverse and check answer f^-1(x)=? please show work
*Wednesday, September 5, 2012 at 8:23pm*

**precal college**

a rocket is shot straight up into the air with an inicial velocity of 250 ft per second and from a height of 100 feet above the ground. h= -16x2+ 250x+ 100
*Wednesday, September 5, 2012 at 8:07pm*

**college alg**

solve the following exponential equation. (e^x-e^-x)/2=6 what is the exact answer? x=? what is the answer approx to 3 decimal places? x=?
*Wednesday, September 5, 2012 at 7:43pm*

**college Alg**

graph the parabola, then determine the domain and range. f(x)=x^2x-4x-4
*Wednesday, September 5, 2012 at 7:29pm*

**college alg**

the function f(x)=6x+9/3x-7 find the inverse and check answer f^-1(x)=? please show work
*Wednesday, September 5, 2012 at 6:53pm*

**college algebra**

solve the following exponential equation. (e^x-e^-x)/2=6 what is the exact answer? x=? what is the answer approx to 3 decimal places? x=?
*Wednesday, September 5, 2012 at 6:44pm*

**college algebra**

solve the following logarithm equation log (4x+7)=1+log(x-6) x=? please show work
*Wednesday, September 5, 2012 at 6:42pm*

**college algebra**

graph the parabola, then determine the domain and range. f(x)=x^2x-4x-4
*Wednesday, September 5, 2012 at 6:01pm*

**college alg**

for the given functions f and g find the following and state the domain of each result f(x)=3x+1/8x-9; g(x)=5x/8x-9 (they look like fractions) A) (f+g)(x)=? B)domain of (f+g) c) (f/g)(x)=? d) domain of f/g? please show work
*Wednesday, September 5, 2012 at 5:27pm*

**college algebra**

A circle has the equation x^2+y^2+6x-46=0 graph using (h,k) radius r what are the intercept?
*Wednesday, September 5, 2012 at 5:21pm*

**Government**

I am looking for help. I have read this article in the New York Times Several times. It is a lengthy article. It is "A Genratin Hobbled by the soaring cost of college bt Andrew Martin and Andrew Lehran. I cannot figure out the authors purpose or what the main ideas ideas...
*Wednesday, September 5, 2012 at 11:30am*

**College Biology help!**

Is this true? Explain. To make a 100 osmolar solution of magnesium chloride, 60g of the salt are placed in a liter of water.
*Wednesday, September 5, 2012 at 12:43am*

**college alg**

find the equation of a line that is perpendicular to line y=1/6x+6 and contains point (-7,0) y=? please show work so i can see how its done
*Tuesday, September 4, 2012 at 10:49pm*

**college alg**

find the equation of a line that is parallel to the line x=6 and contains the point (-8,9) please show work, it also wants me to show the answer in an equation
*Tuesday, September 4, 2012 at 10:42pm*

**physics**

Hello everyone, I need help with this question: A dart gun is fired while being held horizontally at a height of 1.00m above ground level and while it is at rest relative to the ground. The dart from the gun travels a horizontal distance of 5.00m. A college student holds the ...
*Tuesday, September 4, 2012 at 7:42pm*

**college math**

last month bill's electric bill was $80.77. This month , bill bill was $69.06. what is the%degrease
*Tuesday, September 4, 2012 at 3:44pm*

**college math**

3-x=12(x-1)
*Tuesday, September 4, 2012 at 3:36pm*

**English**

Did help with finding the authors purpose and main ideas in this article "A Generation Hobbled by the Soaring Cost of College by Andrew Matin and Andrew Lehren in the New yOrk times
*Tuesday, September 4, 2012 at 2:38pm*

**college math II**

how do you translate the product of 10 and three more than a number in algebraic expression?
*Tuesday, September 4, 2012 at 9:05am*

**statistics**

4. Suppose you administered an anxiety test to a large sample of people and obtained normally distributed scores with a mean of 45 and standard deviation of 4. Do not use web-calculator to answer the following questions. Instead, you need to use the Z distribution table in ...
*Monday, September 3, 2012 at 8:55pm*

**college**

A blue ball is thrown upward with an initial speed of 19.8 m/s, from a height of 0.5 meters above the ground. 2.4 seconds after the blue ball is thrown, a red ball is thrown down with an initial speed of 7.9 m/s from a height of 22.5 meters above the ground. The force of ...
*Monday, September 3, 2012 at 7:33pm*

**College Math**

What would 10 to the 16th power be?
*Monday, September 3, 2012 at 7:28pm*

**College Math**

How do you solve a quadratic equation using the indian method?
*Monday, September 3, 2012 at 5:16pm*

**college physics**

A water-skier is being pulled at a steady speed in a straight line. her mass plus the mass of the ski is 65 kg. the pull of the tow rope on her is 520 N. a...i) What is the vertical component Y of the push of the water on the ski?? ....ii) What is the horizontal component X of...
*Monday, September 3, 2012 at 2:25pm*

**Probability**

4.3. In a certain college town, 27.5 percent of the students failed Mathematics (Math), 19.8 percent failed Biology (Bio), and 11 percent failed both Math and Bio. A student is selected at random. Let A represent the event of failing Math, so that A' is the probability of ...
*Sunday, September 2, 2012 at 11:32pm*

**college alg**

use the transformations to identify the graph of the function. then determine its domain, range, and horizontal asymptote. f(x)=4+3^X/3 please show work
*Sunday, September 2, 2012 at 9:53pm*

**COLLEGE ALG**

use the transformations to identify the graph of the function. then determine its domain, range, and horizontal asymptote. f(x)=4+3^X/3
*Sunday, September 2, 2012 at 5:44pm*

**math**

A college offers nine different psychology courses,four different history course,thirteen different math course,and five different business courses. If a student is required to take one course in each of those four subjects,how many different ways are there for the student to ...
*Sunday, September 2, 2012 at 11:45am*

** college math**

prove f(x)= x^15+6 is increasing on the interval: I= (-‡,‡)
*Saturday, September 1, 2012 at 6:26pm*

**College Math**

LPG is stored in highly insulated spherical vessels in most oil refineries. If the inside diameter of one of these tanks is 11.4 ft, find it's volume. Report your answer to the nearest one-tenth of a gal. Use pie-3014, and 1cubic ft= 705 gal. Possible answers to choose ...
*Friday, August 31, 2012 at 3:53pm*

**College Math**

Find the missing side. Approximate the answer to three decimal places when appropriate. Possible answers are: (A) 10yd, (B)31.623yd, (C) 20yd, (D) 400yd. Can you help me? I have done this so far. 180-15-25=140. I have tried everything that I know of to get the answer but I'...
*Friday, August 31, 2012 at 3:47pm*

**college chemistry**

Rank from highest to lowest vapor pressure.CH3CH2CH2CH2OH,CH4,CH3CHCH2CH3CH3,CH3CH2CH2CH2CH3
*Friday, August 31, 2012 at 2:33pm*

**math**

In a college of exactly 3000 students, exactly 70 are male. What is the number of female students? Express your answer as an integer
*Friday, August 31, 2012 at 12:42am*

**College Physics**

Large boxes of pumpkins are set on a ramp to be unloaded out of a truck. The 300.0 lb boxes are set on the ramp which has an incline of 35 degrees. They must then be pushed to get started down the plane towards the bottom. If the coefficient of the static friction between the ...
*Thursday, August 30, 2012 at 8:09pm*

**College Math**

Find the measure of the missing angle a= 28 degree, b=97degree I 'm not sure how to go about in finding the missing angle. Could you please help?
*Thursday, August 30, 2012 at 4:43pm*

**Business and math question**

Isabella is hoping to get an A on her college algebra course. With just the final exam left to take, she currently has an average of 92 on her exercises. The quizzes count for 40%, exercises count for30% of the class grade. What is the minimal grade that Isabella must have on ...
*Thursday, August 30, 2012 at 2:11pm*

**Business**

Isabella is hoping to get an A on her college Algebra course. With just the finaL exam left to take, she currently has an average of 85 on her quizzes and average of 92 on her exercises. The quizzes count for 40%, exercises count for 30% of the class grade. What is the minimal...
*Thursday, August 30, 2012 at 11:07am*

**Math**

I am stuck with this logic problem: Logic – Jack of All Trades Trudy loves learning new things and is always taking some course or other forum the local college’s adult education program. She’s signed up for four upcoming classes – calligraphy, picture ...
*Wednesday, August 29, 2012 at 7:59pm*

**College Physics 2**

Estimate the magnitude of the electric field strength due to the proton in a hydrogen atom at a distance of 5.29x10^-11 m, the expected position of the electron in the atom.
*Wednesday, August 29, 2012 at 7:07am*

**College Physics 2**

a very small ball has a mass of 5 x 10^-3 kg and a charge of 4x10^-6C(microC). What magnitude electric field directed upwad will balance the weight of the ball?
*Wednesday, August 29, 2012 at 7:05am*

**Math**

I am stuck with this logic problem: Logic – Jack of All Trades Trudy loves learning new things and is always taking some course or other forum the local college’s adult education program. She’s signed up for four upcoming classes – calligraphy, picture ...
*Tuesday, August 28, 2012 at 11:00pm*

**college economics**

how to weigh marginal cost and marginal benefits when using examples of recent decisions in your life.
*Tuesday, August 28, 2012 at 9:50pm*

**psychology**

why would apa format help me in college?
*Tuesday, August 28, 2012 at 7:00pm*

**college algebra**

Find the inverse of the following function. Find the domain, range, and asymptotes of each function. Graph both functions on the same coordinate plane f(x)=4+e^-x/3 please help me! show steps also, if i an just given an answer that wont help me! thanks in advance!!!
*Tuesday, August 28, 2012 at 5:49pm*

**College Math**

High Knob Mountain is 4044 ft. high. What is this distance in meters? The answer I put was (B)102.8m. Is this the correct answer? If no, what am I doing wrong? The other answers to choose from are: (A) 6470m, (C) 1233m (D) 4000m
*Tuesday, August 28, 2012 at 5:45pm*

**College Math**

The posted speed limit on many U.S. highways is 65 miles per hour. What is this speed in feet per second? My answer was 5720 feet per second. The other answers that would be a possibility are: (A)3600 feet per second, (B)95 1/3 feet per second, (C) 5720 feet per second, which ...
*Tuesday, August 28, 2012 at 5:26pm*

**college maths**

In amusement park considering adding some new attractions,conducted a study over several typical days and found that ,of 10,000 families entering the park ,1024 brought just one child (define as younger than age 12),3370 brought two children ,3510 brought three children,1340 ...
*Tuesday, August 28, 2012 at 9:07am*

**algebra college**

find the remaining zeros of f. degree 4 zeros i, -18+i enter the remaining zeros of f please help me out!
*Monday, August 27, 2012 at 12:50am*

**college algebra**

form a polynomial f(x) with real coefficients having the given degree and zeros degree 4 zeros 5+3i;3 multiplicity 2 enter the polynomial f(x)=a?()
*Monday, August 27, 2012 at 12:48am*

**College Physics**

I keep getting answer wrong. I don't know what I did wrong. I really need help please. I need help with 1 question. Can you help with this please if you don't mind? 1) Suppose you are given that z = c y^3/x^2 where c is some number. For a particular value of c, x and y...
*Sunday, August 26, 2012 at 9:12pm*

**College math**

A student is asked to answer 7 out of 9 questions on an exam. (a) Classify the problem as a permutation, a combination, or neither.
*Sunday, August 26, 2012 at 8:30pm*

**College math**

From a survey of 100 college students, a marketing research company found that 60 students owned iPhones, 30 owned cars, and 25 owned both cars and iPhones. (a) How many students owned either a car or an iPhone (but not both)?
*Sunday, August 26, 2012 at 7:41pm*

**College Physics**

Convert 15.9 miles/hr to m/s
*Sunday, August 26, 2012 at 7:03pm*

**college algebra **

an executive invests $29,000 some at 7% and some at 6% annual interest. if he receives an annual return of $1870, how much is invested at each rate?
*Sunday, August 26, 2012 at 4:08pm*

**College Physics I**

A helicopter traveling upward at 120 m/s drops a package from a height of 500 meters. To the nearest second how long does it take to hit the ground?
*Sunday, August 26, 2012 at 12:41am*

**College Physics**

A person jumps from a window 34 meters high and is caught in a firefighter's net which stretches 0.6 meter. To the nearest m/s^2, what is the magnitude of the person's acceleration in the net?
*Sunday, August 26, 2012 at 12:40am*

**math**

From a survey of 100 college students, a marketing research company found that 70 students owned iPhones, 45 owned cars, and 40 owned both cars and iPhones. (a) How many students owned either a car or an iPhone (but not both)? 1 students (b) How many students do not own either...
*Saturday, August 25, 2012 at 4:43pm*

**College Math**

Evaluate the expression. (8 7) however the () should cover both numbers. Please explain answer if poss.
*Saturday, August 25, 2012 at 2:10am*

**College Math**

A club consists of 16 men and 19 women. In how many ways can they choose a president, vice president, treasurer, and secretary, along with an advisory committee of six people? (Round the answer to five decimal places.) The Answer is blank x 10 to the 11th power ways
*Saturday, August 25, 2012 at 2:08am*

**College Math**

Find the amount of interest and the monthly payment for the loan. Purchase a living room set for $3,400 at 12% add-on interest for 5 years. (Round your monthly payment to the nearest cent.)
*Saturday, August 25, 2012 at 2:06am*

**college algebra**

use rational zeros theorem to find all the real zeros in the polynomial function. use zeros to factor f over real numbers. f(x)=x^3+10x^2-13x-22 find real zeros of f? use real zeros to factor f?
*Friday, August 24, 2012 at 9:58pm*

**college alg**

form a polynomialf(x) with real coefficients, having the given degree and zeros degree 5; zeros -5;-i; -5+i
*Friday, August 24, 2012 at 9:40pm*

**college algebra**

find the complex zeros of the polynomial function. write f in factored form. use complex zeros to write f in factored form f(x)= x^3-6x^2+21x-26
*Friday, August 24, 2012 at 9:02pm*

**College Algebra**

Write the equation of a circle in standard Find the center, radius intercepts and graph the circle. .........x^2+y^2-12x-4y+36=0
*Friday, August 24, 2012 at 3:39pm*

**College Algebra**

Find the slope intercept equation of the line with the following properties: Parallel to the line 5x+2y=1; containing points (-5,4)
*Friday, August 24, 2012 at 3:35pm*

**college algebra !!!**

analyze the graph of the following function. r(x)= x^2+x-6 -------- x^2-x-2
*Wednesday, August 22, 2012 at 9:47pm*

**Social Studies**

The 1978 Supreme Court decision in Bakke v. Regents of the University of California A. ruled in favor of affirmative action within specified limits. B. established the "red state-blue state" divide. C. established the rights of students to appeal college admissions ...
*Wednesday, August 22, 2012 at 3:45pm*

**college algebra**

analyze the graph of the following function. r(x)= x^2+x-6 -------- x^2-x-2 there are 8 steps but they dont make sense to me... please show work!! thanks
*Tuesday, August 21, 2012 at 9:01pm*

**English**

Is this sentence correct? If not, could you point out what part is not correct? As an incentive to attend the local college, our father told my brother and I that we could use his company car for transport.
*Tuesday, August 21, 2012 at 1:14pm*

**math**

From a survey of 100 college students, a marketing research company found that 70 students owned iPhones, 45 owned cars, and 40 owned both cars and iPhones. (a) How many students owned either a car or an iPhone (but not both)? 1 students (b) How many students do not own either...
*Tuesday, August 21, 2012 at 12:00am*

**College Math**

The longest banana split ever made was 4mi 686yd long. How many feet is that? However, a 4.55 mile banana split was made in Selinsgrove, PA., in 1988. Which is longer? (Hint: 0.55 miles is 0.55 x 5280 ft.)
*Monday, August 20, 2012 at 6:45pm*

**College Math**

The average urbanite walks about 2 yd per second. A) How many seconds would it take to go 100yd? B) How may seconds would it take to go 440yd? Not sure how to go about to find the answer.
*Monday, August 20, 2012 at 6:28pm*

**College Math**

Water rises inside a plant's stem an average of 4ft. every hour. A. How many inches is that? The answer for this is 48 inches. B)If a plant is 72 in. tall, how long would it take for water to travel from the bottom to the top of the plant? On part B, I didn't ...
*Monday, August 20, 2012 at 6:20pm*

**MATH**

You are interested in finding out if a student’s ACTscore is a good predictor of their final college grade point average(GPA). You have obtained the following data and are going to conduct a regression analysis. Follow instructions on page 324 of your textbook under line ...
*Monday, August 20, 2012 at 4:26pm*

**Civics**

Isn't there a term that for when you find people with college degrees working at a fast-food franchise?
*Sunday, August 19, 2012 at 10:39pm*

**college algebra**

solve the following inequality. write the answer in interval notation x^3-4x^2-21x<0 please show work so i can understand this problem better! thanks
*Sunday, August 19, 2012 at 10:26pm*

**college algebra**

determine the quadratic function f whose graph is given. the vertex is (1,-3) y intercept is -2 please show work so i can see how this is done, thank you!
*Sunday, August 19, 2012 at 8:00pm*

**college algebra**

graph the function and state the vertex axis of symmetry, the intercepts, if any: f(x)=x^2-8x+15 Please show work so i can understand this. thank you
*Saturday, August 18, 2012 at 10:14pm*

**College algebra**

graph the function using transformations, show and state , a) the domain, B) range c) the asymptotes F(x)= 1 ----- -4 x^2 please show work!
*Saturday, August 18, 2012 at 9:29pm*

**English III proofread and tips**

Hi its me again! Is it ok to ask for ya'll to proofread these summaries I'm submitting? If not, I'll stop but here's another one I've finished. New York Times Putting Our Brains on Hold August 6, 2010 By: Bob Herbert In his essay, Putting Our Brains on Hold...
*Saturday, August 18, 2012 at 8:09pm*

**college physics**

a delivery truck is 5 km away from a car. the two started at the same time and headed at the same direction. the delivery truck accelerates at 3m/s. if the car should overtake the truck in ten minutes, what should be the acceleration of the car?
*Saturday, August 18, 2012 at 6:51am*

**college physics**

a delivery truck is 5 km away from a car. the two started at the same time and headed at the same direction. the delivery truck accelerates at 3m/s. if the car should overtake the truck in ten minutes, what should be the acceleration of the car?
*Saturday, August 18, 2012 at 6:50am*

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