Tuesday

September 30, 2014

September 30, 2014

Post a New Question | Current Questions

** 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*

**college algebra**

find the vertical, horizontal, oblique asymptotes, if any, for the given rational function. R(x)=10x^2+19x-15 -------------- 2x+5 please show how you arrived with the answer! thank you
*Friday, August 17, 2012 at 9:53pm*

**college algebra**

graph the function using transformations, show and state , a) the domain, B) range c) the asymptotes F(x)= 1/x^2-4 please show work!
*Friday, August 17, 2012 at 9:49pm*

**College Math**

Nick received a $7000.00 raise. If his previous salary was 55000.00, what was the percent of increase in salary? I put the answer as (A) 13%. The other possible answers are: (B) 1%, (C) 8%, (D) 14%. If my answer is not correct, Could please tell me what I'm doing wrong in ...
*Friday, August 17, 2012 at 5:33pm*

**math**

From a survey of 200 college students, a marketing research company found that 140 students owned iPhones, 75 owned cars, and 60 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 ...
*Wednesday, August 15, 2012 at 10:09pm*

**College Chemistry**

The sun bombards the earth with about 1KJ m^-2s^-1. Calculate the maximum mass of pure ethanol that can be vaporized in 10 min from a beaker left in strong sunshine, assuming the surface area of the ethanol t be 50cm^2.
*Wednesday, August 15, 2012 at 7:25pm*

**college chemistry 4**

you and a friend have two flasks, one containing hydrogen gas and the other chlorine gas; you each take one flask and go to opposite sides of the room, 10.0m apart. if you were both to popen your flasks toward each other at the same time, where in the room would the explosive ...
*Wednesday, August 15, 2012 at 4:47pm*

**College Chemistry 3**

Find the empirical Formula of a compound that is 30.4% nitrogen by mass, and consists of only nitrogen and oxygen. What is its molecular formula if its molar mass is 92g/mol?
*Wednesday, August 15, 2012 at 4:41pm*

**college chemistry 2**

if 20g of CaSiO3 is mixed with 15g of HF which of the two is the limiting reactant and how many grams of the other will be left
*Wednesday, August 15, 2012 at 4:37pm*

**College Chemistry**

what is the percent yield of SiF4 using the mixture in the previous question if 8.76g of SiF4 is obtained from the reaction
*Wednesday, August 15, 2012 at 4:36pm*

**College Algebra**

The area of a rectangular wall of a barn is 24 square feet. Its length is 8 feet longer than twice its width. Find the length and width of the wall of the barn
*Wednesday, August 15, 2012 at 2:38pm*

**College Algebra**

1. Find the domain of the composite function f o g. f(x)= 2/x-3; g(x)= 7/x 2. Solve the following exponential equation. Exact answers only. 2^1-9x = e^2x
*Tuesday, August 14, 2012 at 1:45pm*

**MATH**

As an entrepreneur, there are going to be many decisions that you need to make, such as the price to charge your customers for your goods and services. You have just graduated from college and recently opened a specialty pizza restaurant. Based on surveys conducted in your ...
*Tuesday, August 14, 2012 at 1:31am*

**Math**

A survey of 180 college men was taken. 43 students were in fraternities, 52 participated in campus sports, and 35 participated in campus tutorial programs. 13 participated in fraternities and sports, 14 in sports and tutorial programs, and 12 in fraternities and tutorial ...
*Friday, August 10, 2012 at 6:23pm*

**math**

A survey of 180 college men was taken. 43 students were in fraternities, 52 participated in campus sports, and 35 participated in campus tutorial programs. 13 participated in fraternities and sports, 14 in sports and tutorial programs, and 12 in fraternities and tutorial ...
*Friday, August 10, 2012 at 11:36am*

**algebra**

A college bookstore ordered six boxes of red pens. The store sold 37 red pens last week and 67 red pens this week. 4 pens were left on the shelf. How many pens were in each box?
*Thursday, August 9, 2012 at 9:57pm*

**College Algebra**

1. Use the Intermediate Value Theorem to show that the polynomial function has a zero in the given interval. f(x) = 13x^4 - 5x^2 +7x -1; [3,0] Enter the value of (-3). 2. Use the Intermediate Value Theorem to show that the polynomial function has a zero in the given interval. ...
*Thursday, August 9, 2012 at 8:37pm*

**College Algebra**

Using the 7 steps outlined in section 4.3 of your book, analyze the graph of the following function: R(x) = x^2 - 49/x^4 - 16 Step 1: Factor the numerator and denominator of R and find its domain. If 0 is in the domain, find y-intercept, R(0), and plot it. Step 2: Write R in ...
*Tuesday, August 7, 2012 at 8:46pm*

**math**

need to make a venn diagram using 3 circles. A survey on subject being taken by 250 students at a certain college revealed the following info: 1. 90 were taking math 2. 145 were taking history 3. 88 were taking english 4. 25 were taking math and history 5. 38 were taking ...
*Monday, August 6, 2012 at 6:53pm*

**College Algebra**

Find all zeros of the following polynomial. Write th polynomial in factored form. f(x) = x^4 - 256
*Monday, August 6, 2012 at 1:18pm*

**College Algebra**

Graph the function using transformations. Show your work and state a) the domain b) the range c) the asymptotes f(x) = 3 - 1/(x + 4)^2
*Sunday, August 5, 2012 at 1:49pm*

**college chemistry2**

calculate the molarity of a solution containing 20.0g of sulfuric acid in 500 ml of solution?in a solving problem form?
*Sunday, August 5, 2012 at 5:29am*

**College Algebra**

1.The graph of y = - 1/2 |x - 5| - 3 can be obtained from the graph of y = |x| by which transformations? What is the horizontal shift? By what factor is the graph stretched or shrunk vertically and how is it reflected? What is the vertical shift? 2. Find the following for the ...
*Saturday, August 4, 2012 at 3:38pm*

**College Algebra**

1.Answer the following for the given quadratic function. f(x) = -2x^2 - 8x - 13 (a) does the graph of f open up or down? (b) what is the vertex (h,k) of f? (c) what is the axis of symmetry? (d) what are the intercepts? (e) how is the graph suppose to look for this question? (f...
*Saturday, August 4, 2012 at 3:20pm*

**College Algebra**

1.Use completing the square to describe the graph of the following function. Support your answer graphically. f(x) = -2x^2 + 4x + 5 2. Find the vertical, horizontal, and oblique asymptotes, if any, for the following rational function. R(x) = 5x/x+7 The vertical asymptote(s) is...
*Friday, August 3, 2012 at 6:33pm*

**Statistics**

What percentage of college students are attending a college in the state where they grew up? Let p be the proportion of college students from the same state as that in which the college resides. If no preliminary study is made to estimate p, how large a sample is needed to be ...
*Wednesday, August 1, 2012 at 1:40pm*

**College Algebra**

1. Which of the following best describes how the graph of f can be obtained from the graph of y = 1/x^2? f(x) = 4/x^2 a. vertical stretch by a factor of -4 b. horizontal shift of 4 units to the right c. reflection over the y-axis, vertical shrink by a factor of 4 d. reflection...
*Wednesday, August 1, 2012 at 12:27pm*

**reading**

(1) After my interview with these four young people, I reflected on the quiet sense of "difference" I sensed with many of these Upward Bound students. (2) As a college teacher who has also taught seventh-grade science, I have some experience with the faces and ...
*Tuesday, July 31, 2012 at 3:06pm*

**college physics**

A 565 N mountain climber moves across a rope strung across a canyon. When she is more than halfway across, she notices the rope makes a 10.0 degree angle (from horizontal) behind her and a 25.0 degree angle (from horizontal) ahead of her. What are the tensions in the rope in ...
*Monday, July 30, 2012 at 11:00pm*

**statistics**

The National Center for Education surveyed 4400 college graduates about the lengths of time required to earn their bachelor's degrees. The sample mean is 5.15 years, and assume that standard deviation is known to be 1.68 years. Based on the sample data, construct the 99% ...
*Monday, July 30, 2012 at 9:31am*

**writing**

Im speech and psychology this semester in college. I will like to know if there is any websites that can help me with writing a good paper. Thank you in advance!
*Monday, July 30, 2012 at 7:55am*

**math**

The National Center for Education surveyed 4400 college graduates about the lengths of time required to earn their bachelor's degrees. THe sample mean is 5.15 years, and assume that the population standard deviation is known to be 1.68 years. Based on gthe sample data, ...
*Sunday, July 29, 2012 at 11:45pm*

**college physics**

Car A accelerates from rest at 2m/s2. It passes Car B, which is at rest. Thirty (30) seconds later, the latter follows with a constant speed of 10m/s. Determine the distance in order to overtake the other.
*Sunday, July 29, 2012 at 7:48am*

**College Algebra**

Graph the following function using transformations. Be sure to graph all of the stages on one graph. State the domain and range. y = -SQRT x - 6. My instructor is saying that I have to do more than one graph. Can anybody help me I am lost!
*Friday, July 27, 2012 at 1:53pm*

**college stat**

Use the graphic to show the sampling distributions of means for the sample from Prison A (n=82) and the sample from Prison B (n=37). Mark the expected value of the mean and the standard units. Shade in the critical zone for alpha = .05.Locate each sample mean after you have ...
*Tuesday, July 24, 2012 at 4:56pm*

**College Math**

Why is the product of two numbers not always their least common multiple?
*Tuesday, July 24, 2012 at 2:33pm*

**college algebra**

2 log x- log 9=log 441
*Tuesday, July 24, 2012 at 10:32am*

**college algebra**

2 log x- log 9=log 441
*Tuesday, July 24, 2012 at 10:21am*

**Science**

You are a retired law enforcement officer who now teaches at a local community college in the criminal justice program. In addition to teaching ethics, you write crime novels on the side. You recently heard of a real-life case that you thought would make the basis for a good ...
*Monday, July 23, 2012 at 8:19pm*

**college statistic**

A sample of 51 night-school students' ages is obtained in order to estimate the mean age of night-school students. x = 26 years. The population variance is 19. (a) Give a point estimate for μ. (Give your answer correct to one decimal place.) (b) Find the 95% ...
*Monday, July 23, 2012 at 6:46pm*

**College algebra**

If the domain and range of a function consists of real numbers, then you can graph it by plotting all ordered pairs (x, f(x)). Remember "y" = f(x). How can you tell by looking at a graph if it represents a function?
*Monday, July 23, 2012 at 5:17pm*

**college **

Consider a normal population with μ = 36 and σ = 4.9. Calculate the z-score for an x of 47.6 from a sample of size 14. (Give your answer correct to two decimal places.)
*Monday, July 23, 2012 at 4:15pm*

**college**

Kp for the reaction CO2(g) + C(s) 2CO(g) is 1.47 at 727°C. Calculate Kc at this temperature
*Sunday, July 22, 2012 at 11:20pm*

**John jay college**

A random sample of n = 9 scores is obtained from a population with μ = 50 and σ = 9. If the sample mean is M = 59, what is the z-score corresponding to the sample mean? z = 3.00 z = 1.00 z = 9.00 cannot determine without additional information
*Sunday, July 22, 2012 at 5:59pm*

**John jay college**

A random sample of n = 9 scores is obtained from a population with μ = 50 and σ = 9. If the sample mean is M = 59, what is the z-score corresponding to the sample mean?
*Sunday, July 22, 2012 at 5:57pm*

**Computer science**

As a member of the Information Security team at a small college, you have been made the project manager to install an access control system (ACS) in a dormitory. The ACS will automatically unlock the dormitory doors via an electronic proximity reader and integrate with an ...
*Sunday, July 22, 2012 at 5:05pm*

**college math**

125x^9m+27y^6m
*Friday, July 20, 2012 at 11:09am*

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