Thursday

July 24, 2014

July 24, 2014

Post a New Question | Current Questions

**College Algebra 105**

use the rational zero's theorem to list the potential zero's of the polynomial function. Do not attempt to find the zero's f(x)=-169x^7-x^6+x+13 and then the second part is find the potential rational zero's.
*Monday, December 9, 2013 at 11:45am*

**college algebra**

solve the system 2x+y=-4 -x+y= 2
*Saturday, December 7, 2013 at 8:23pm*

**economic**

College enrollments increased at the same time that average tuition rose dramatically. Does this contradict the law of downward-sloping demand? Explain. (b) Use supply and demand model to explain the dramatic rise in the price of a college education
*Friday, December 6, 2013 at 8:39pm*

**college stats**

Suppose population proportion1 = 0.4, sample size1 = 100, population proportion2 = 0.5, sample size2 = 120. whats the formula? i think this is just a plug and chug
*Thursday, December 5, 2013 at 8:16pm*

**college stats**

in a sample of 159,949 first year college students, the national survey of student engagement reported that 39% participated in community service or volunteer work.find the margin of error for 99% confidence. what formula do I use? I know the 99% interval for z is 2.576 n is ...
*Thursday, December 5, 2013 at 7:49pm*

**stats**

in a sample of 159,949 first year college students, the national survey of student engagement reported that 39% participated in community service or volunteer work.find the margin of error for 99% confidence. ...idk what formula to use.
*Thursday, December 5, 2013 at 7:41pm*

**chemistry college**

Consider the titration of 30.0 mL sample of 0.050 M NH3 with 0.025 M HCl. Calculate the pH after the following volumes of titrant (acid)have been added: a)0 mL, b)20.0mL, c)60.0mL, d)65mL Kb for NH3 is 1.8 x 10^-5
*Wednesday, December 4, 2013 at 5:33pm*

**College Algebra**

1. 2log8^x=log8(4x+12) both log bases are 8. I have no clue what to do. 2. 1/2ln (x) -3 ln y - ln (z-2) so far for this second one i have ln sqrt(x)-ln y^3 - ln (z-2) dont know what to do next
*Wednesday, December 4, 2013 at 1:17pm*

**English**

Q: To be a doctor at a hospital, do they all need to get doctors's degree in college?
*Tuesday, December 3, 2013 at 4:22pm*

**College algebra**

Solve the system Y=3x-2 6x-2y=30
*Tuesday, December 3, 2013 at 3:29pm*

**College algebra**

Solve the system X=2y+3 3x+4y=59
*Tuesday, December 3, 2013 at 3:28pm*

**English**

Hello, Dr. Green. ------------------ In this expression, is Dr. Green a doctor who works at a hospital? Or is Dr. Green a professor in college?
*Tuesday, December 3, 2013 at 2:37pm*

**College Algebra**

A= [2 3 0] [4 1 6] 1. what is the additive inverse of A? 2. find 3A.
*Tuesday, December 3, 2013 at 12:46pm*

**College Algebra**

Line m passes through (2,5) and (-3,-2) Find the slope of a line that is perpendicular to line m.
*Tuesday, December 3, 2013 at 12:44pm*

**College Algebra**

Find the probability of drawing two i's in a row without replacement.
*Tuesday, December 3, 2013 at 12:42pm*

**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?
*Sunday, December 1, 2013 at 9:17pm*

**college calculus**

I don't know how to solve this indefinite integral with both limits as variables: ^x^3 ç (z^4+1)dz ⌄ln(x) If you could explain I'd appreciate it.
*Saturday, November 30, 2013 at 10:36pm*

**Probability and Statistics**

The proportion of adults living in a small town who are college graduates is estimated to be p = 0.6. To test this hypothesis, a random sample of 15 adults is selected. If the number of college graduates in the sample is anywhere from 6 to 12, we shall not reject the null ...
*Saturday, November 30, 2013 at 8:06pm*

**College Physics **

At what frequency does the inductive reactance of a 42.0 µH inductor equal the capacitive reactance of a 42.0 µF capacitor? kHz
*Saturday, November 30, 2013 at 6:41pm*

**Probability and Statistics**

The proportion of adults living in a small town who are college graduates is estimated to be p = 0.6. To test this hypothesis, a random sample of 15 adults is selected. If the number of college graduates in the sample is anywhere from 6 to 12, we shall not reject the null ...
*Saturday, November 30, 2013 at 1:50am*

**Probability and Statistics**

The proportion of adults living in a small town who are college graduates is estimated to be p = 0.6. To test this hypothesis, a random sample of 15 adults is selected. If the number of college graduates in the sample is anywhere from 6 to 12, we shall not reject the null ...
*Friday, November 29, 2013 at 7:30pm*

**College alerbra**

solve the exponential equation. 4^(x+2)=9x
*Friday, November 29, 2013 at 2:51pm*

**College**

7x+6=x-30
*Friday, November 29, 2013 at 12:21am*

**Probability and Statistics**

The proportion of adults living in a small town who are college graduates is estimated to be p = 0.6. To test this hypothesis, a random sample of 15 adults is selected. If the number of college graduates in the sample is anywhere from 6 to 12, we shall not reject the null ...
*Thursday, November 28, 2013 at 5:13pm*

**Probability and Statistics**

The proportion of adults living in a small town who are college graduates is estimated to be p = 0.6. To test this hypothesis, a random sample of 15 adults is selected. If the number of college graduates in the sample is anywhere from 6 to 12, we shall not reject the null ...
*Wednesday, November 27, 2013 at 11:34pm*

**antelope college**

Oscar has 4 gallons 1 quart of milk. he wants to place all of the milk into quart bobbles. how many quarts does he have?
*Monday, November 25, 2013 at 11:16pm*

**College Algebra**

Find a Quadratic polynomial function with real coefficients satisfying the given conditions. -4 and 3 are zeros; f(1) = -30 HELP. I have no idea.
*Monday, November 25, 2013 at 8:22pm*

**statistics**

In a study of caffeine and stress, college students indicate how many cups of coffee they drink per day and their stress level on a scale of 1-10. The data appear below. Number of Cups of Coffee Stress Level 3 5 2 3 4 3 6 9 5 4 1 2 7 10 3 5 = 3.88 X= 5.13 s = 2.03 s = 2.90 ...
*Monday, November 25, 2013 at 3:36pm*

**College Algebra**

solve the polynomial inequality and graph on number line. express in set interval rotation. Show work x^3 - 3x^2 - 9x + 27 < 0
*Sunday, November 24, 2013 at 6:55pm*

**statistics**

Typing speeds among college students are normally distributed with a mean of 60 words, and a standard deviation of 10 words. determine the typing speed that separates the top 6% typists from the rest.
*Sunday, November 24, 2013 at 3:55pm*

**college problem solving 3**

an express train leaves new york at 3:00 pm and rreaches boston at 6:00 pm a slow train leaves boston at 1:30pm and arrives in new york at 6:00 pm. if both trains travel at constant speeds at what time do they meet
*Sunday, November 24, 2013 at 2:09pm*

**college problem solving 2**

Me and Bill said casey can do the job for you in 10 days but give me alex instead of bill and we can get it done in 9 days. i can do better tha that said slex. let me take bill as a partner and we will do the job for you in 8 days. how long will it take each man to do the job ...
*Sunday, November 24, 2013 at 2:07pm*

**college problem solving**

a certain two-digit number is 6 less than the sum of its tens digit and 7 times its units digit. if the digits are reversed the number is increase by 27. fin the original two-digit numbers
*Sunday, November 24, 2013 at 2:02pm*

**College alerbra**

Scott invested a total of $9500 at two separate banks. One bank pays simple interest of 11% per year while the other pays simple interest at a rate of 9% per year. If Scott earned $973.00 in interest during a single year, how much did he deposit in each bank?
*Saturday, November 23, 2013 at 5:11pm*

**TCCD**

Thirty five percent of adult americans are regular voters. A random sample of 250 adults in a medium size college town were surveyed, and it was...Estimate the true proportion of regular voters with 90% confidence and comment on the results.
*Friday, November 22, 2013 at 1:27am*

**statistics**

Is there a significant difference between first year post college incomes of graduates from public versus private institutions? Provide the IV, DV, and best method of analysi
*Thursday, November 21, 2013 at 9:41pm*

**Calculus - Integrals **

The projected rate of increase in enrollment at a new college is estimated by dE/dt = 6,000(t+1)^-3/2 where E(t) is the projected enrollment in t years. If the enrollment is 3,000 now (t=0), find the projected enrollment 15 years from now.
*Thursday, November 21, 2013 at 5:51pm*

**College Algebra**

Identify a different point on the line (with whole number coordinates) and tell what it represents.
*Thursday, November 21, 2013 at 5:33pm*

**College Algebra**

The equation for the total revenue earned by a company for selling widgets is p=4q. The equation for the total cost of the company for producing widgets if p=q+6. Find the break-even quantity.
*Thursday, November 21, 2013 at 5:30pm*

**College Algebra**

The equation for the total revenue earned by a company for selling widgets is p=4q. The equation for the total cost of the company for producing widgets if p=q+6. Graph p=4q
*Thursday, November 21, 2013 at 2:24pm*

**College Algebra**

Mints cost 5 cents each and gumballs cost 3 cents each. Kathleen spent 60 cents buying x mints and y gumballs. Slope intercept form: y=-5/3+20 What is the slope and what does it represent in this problem?
*Thursday, November 21, 2013 at 2:19pm*

**College Algebra**

Mints cost 5 cents each and gumballs cost 3 cents each. Kathleen spent 60 cents buying x mints and y gumballs. Slope intercept form: y=-5/3+20 What is the y-intercept and what does it represent in this problem?
*Thursday, November 21, 2013 at 11:33am*

**College Algebra**

Pencils cost 20 cents and pens cost 50 cents. Mabel buys x pencils and y pens, spending $2.00. Write an equation in standard form with integer coefficients that relates x and y.
*Wednesday, November 20, 2013 at 10:46pm*

**College Algebra**

Write an equation for the amount of money, A, that we would have if we invested $25,000 at 6% per year for 5 years compounded instantaneously.
*Wednesday, November 20, 2013 at 9:30pm*

**College Algebra**

Write an equation for the amount of money, A, that we would have if we invested $2000 at 8% interest for 10 years compounded semiannually (twice each year)
*Wednesday, November 20, 2013 at 9:29pm*

**houston community college**

gordon rosel went to his bank to find out how long it will take for 1,200 to amount to 1,650 at 8% simple interest. round to the nearest tenth
*Wednesday, November 20, 2013 at 9:13pm*

**College Algebra**

Solve the System 2x-8y=20 3x-12y=30
*Wednesday, November 20, 2013 at 9:13pm*

**College Algebra**

A 50 gallon barrel plumb full of water springs a leak in the bottom and leaks at a constant rate of two gallons per minute. Write an equation that relates the amount of water left in the barrel, y in terms of how many minutes have passed since the leak began, x.
*Wednesday, November 20, 2013 at 9:03pm*

**College Algebra**

A company that bought a machine for $30,000 wants to depreciate its entire value equally over the next ten years. Write an equation that represents the machine's value, v, in terms of the number of years that have passed since the machines purchase, t.
*Wednesday, November 20, 2013 at 8:38pm*

**College Algebra**

Change the equation 5x+3y=60 to slope-intercept form.
*Wednesday, November 20, 2013 at 8:25pm*

**College Algebra**

Mints cost 5 cents each and gumballs cost 3 cents each. Kathleen spent 60 cents buying x mints and y gumballs. Write an equation in stand form that represents all the different combinations of mints and gumballs that Kathleen might have purchased.
*Wednesday, November 20, 2013 at 8:18pm*

**literature (bejamin Franklin)**

As a poor boy, Franklin realized that he could not buy many books, but he came up with an idea that could give people access to as many books as they wanted. This idea was essentially.. a) get a government grant b)get the government to buy the books c)have all your friends ...
*Tuesday, November 19, 2013 at 6:07pm*

**maths**

A community college has 2,000 students and 50 instructors. Next year the enrollment will be 6,000. How many new instructors should be hired if the college wants to keep the same student to instructor ratio?
*Tuesday, November 19, 2013 at 5:17pm*

**college algebra**

A partial solution set is given for the polynomial equation. Find the complete solution set. (Enter your answers as a comma-separated list.) x^3 + 3x^2 − 14x − 20 = 0; {−5}
*Monday, November 18, 2013 at 8:36pm*

**college algebra**

Use long division to perform the division. (Express your answer as quotient + remainder/divisor.) (x^4 + 7x^3 − 2x^2 + x − 1) / (x − 1)
*Monday, November 18, 2013 at 8:10pm*

**college algebra**

Solve the exponential equation using logarithms. Give the answer in decimal form, rounding to four decimal places. (Enter your answers as a comma-separated list.) 4^(x − 3) = 3^(2x) x = _____
*Monday, November 18, 2013 at 7:41pm*

**college algebra**

Use a calculator to help solve the problem. An isotope of lead, 201Pb, has a half-life of 8.4 hours. How many hours ago was there 40% more of the substance? (Round your answer to one decimal place.) ____hr
*Monday, November 18, 2013 at 7:38pm*

**English**

Which words go in the following sentences. Young Charles was born in 1902 and was growing/grew up on a farm. Later, although he has studied/had studied engineering in college, he was more interested in flying planes.
*Monday, November 18, 2013 at 4:39pm*

**Business 101**

1. Carmen Santiago works for a number of businesses as a “consultant.” She has helped design accounting systems, provided accounting services, and analyzed the financial strength of her clients’ businesses. Carmen is working as a A. public accountant. B. ...
*Sunday, November 17, 2013 at 6:59pm*

**college algebra**

An isotope of lead, 201Pb, has a half-life of 8.4 hours. How many hours ago was there 40% more of the substance? (Round your answer to one decimal place.) ____hr
*Sunday, November 17, 2013 at 4:10pm*

**college algebra**

Solve the exponential equation using logarithms. Give the answer in decimal form, rounding to four decimal places. (Enter your answers as a comma-separated list.) 4x − 3 = 32x x = _____
*Sunday, November 17, 2013 at 3:15pm*

**college algebra**

In 4 years, 30% of a radioactive element decays. Find its half-life. (Round your answer to one decimal place.) _____ yr
*Sunday, November 17, 2013 at 3:10pm*

**College and Social studies Courses**

Is Economic 201 or 202 equivalent to AP Microeconomic or AP Macroeconomic?
*Friday, November 15, 2013 at 6:58pm*

**College and Math Courses**

Is statistic 243 equivalent to AP Statistic?
*Friday, November 15, 2013 at 6:56pm*

**college essay conclusion edit**

can someone edit this. also, does it sound too melodramatic? And so, dear reader, I am no longer a child. I was unable to maintain my simplest and purest form, as the fragile innocence of my childhood has been taken. I am like an old book, torn and weathered from time, ...
*Friday, November 15, 2013 at 6:54pm*

**college letter edit**

can someone help edit this? I literally need this in by tonight Dear Admissions, As I was recently speaking with an admissions officer from Uconn, I was exponentially pleased to be informed that the University of Connecticut has allowed for the submition of a writing ...
*Friday, November 15, 2013 at 4:52pm*

**college essay cover letter**

Can someone edit this Dear Admissions, I was pleased to find that the University of Connecticut allowed for applicants to submit a writing supplement along with their applications. So, I have taken this opportunity to show the main experiences that I have experienced the past ...
*Friday, November 15, 2013 at 3:13pm*

**stastics**

Salaries of 31 college graduates who took a course in college have a mean, x of 66,700 a standard deviation , o of 17,120, construct a 90% confidence interval for estimating the population mean u.
*Friday, November 15, 2013 at 11:06am*

**math**

A couple plans to save for their child’s college education. What principal must be deposited by the parents when their child is born in order to have $100,000 when the child reaches age 18? Assume the money earns 4% interest, compounded quarterly.
*Friday, November 15, 2013 at 6:09am*

**Personal Finance**

If the economy is not doing well and jobs are hard to find, what would you suggest for your friend to do if they are graduating high school in a month? A) sit at home until the economy improves B) save money by going to a local community college C) look for a job D) all of the...
*Wednesday, November 13, 2013 at 10:41am*

**College Level Calculus**

Each orange tree grown in California produces 720 oranges per year if not more than 20 trees are planted per acre. For each additional tree planted per acre, the yield per tree decreases by 15 oranges. How many trees per acre should be planted to obtain the greatest number of ...
*Tuesday, November 12, 2013 at 10:31pm*

**math 540**

suppose it takes a college student an average of 5 minutes to find a parking space on the schools parking lot. Assume also that this time is normally distributed with a standard deviation of 2 minutes. What time is exceeded by approximately 75% of the college students when ...
*Tuesday, November 12, 2013 at 9:21pm*

**college physics**

A weightlifter has a basal metabolic rate of 92.4 W. As he is working out, his metabolic rate increases by about 650 W. (a) How many hours does it take him to work off a 450 Calorie bagel if he stays in bed all day? (b) How long does it take him if he's working out? (c) ...
*Tuesday, November 12, 2013 at 8:44pm*

**college**

a point source is on the bottom of a pool 2m deep. find the diameter of the largest circle at the surface which light can emerge from the water (n=1.33)
*Monday, November 11, 2013 at 11:36pm*

**Math**

the ratio of males to females in a college class is 2:6. If there are 72 students in the class, how many are male?
*Monday, November 11, 2013 at 9:19pm*

**College anatomy**

It was observed that blood glucose levels were falling in an individual. This event would be sensed by (a) cells in the (b) of the pancreas, causing them to release the hormone (c). This series of events would be part of an (d) loop/mechanism, serving as a self-adjusting ...
*Monday, November 11, 2013 at 7:33pm*

**Statistics**

An opinion poll asks a random sample of 100 college seniors how they view their job prospects. In all, 53 say "Good." The 95% confidence interval has a margin of error of 9.9%. The sample used actually included 130 college seniors but 30 of the seniors refused to ...
*Monday, November 11, 2013 at 3:51pm*

**Statistics**

To plan the budget for next year a college needs to estimate what impact current economic downturn might have on student requests for financial aid. Historically, this college has provided aid to 35% of its students. Officials look at a random sample of this year’s ...
*Monday, November 11, 2013 at 2:50pm*

**U.S. and Global economics; involving math problems**

I've been working on this problem for "hours" and I can't quite figure out how to solve it; can anyone help plzzz? I would appreciate it. :) Two college students went on spring break to Guadalajara, Mexico. One took the vacation in 2002, while the other went ...
*Monday, November 11, 2013 at 10:03am*

**bangladesh**

In the space before each of the following items, place a C if the capitalization is correct, a zero (0) if it is incorrect. Then insert capitals where they should be, and draw a line through capitals that should be small letters. 1. the Rocky Mountains 2. my spanish course 3. ...
*Monday, November 11, 2013 at 3:22am*

**College Physics**

A wooden bridge crossing a canyon consists of a plank with length density λ = 2.25 kg/m suspended at h = 10.89 m below a tree branch by two ropes of length L = 2h and with a maximum rated tension of 2000 N, which are attached to the ends of the plank, as shown in the ...
*Sunday, November 10, 2013 at 11:50pm*

**college essay**

can someone edit my college essay? I was told by an admissions counselor to write a supplement describing my low cumulative GPA. It is a rough first draft, and probolaly needs to be heavily edited I am my truest and purest self, a mere child embarking on the beginning of the ...
*Sunday, November 10, 2013 at 9:37am*

**college essay**

I have a 2.68 GPA. I know its bad, but this was mainly due to my mother dying freshman year and my fathers debilitating state after her death. I had a 2.0 freshman yr, a 2.65 sophmore yr, a 3,259 junior yr, and a 3.67 senior yr (so far) A Uconn admissions counselor told me to ...
*Saturday, November 9, 2013 at 5:05pm*

**Statistics**

In a study of caffeine and stress, college students indicate how many cups of coffee they drink per day and their stress level on a scale of 1 to 10. The date follow: Number of Cups of Coffee 3,2,4,6,5,1,7,3 Stress Level 5,3,3,9,4,2,10,5 Calculate a Pearsons r to determine the...
*Thursday, November 7, 2013 at 8:47pm*

**stats**

To estimate the mean score of those who took the Medical College Admission Test on your campus, you will obtain the scores of an SRS of students. From published information you know that the scores are approximately Normal with standard deviation about 6.4. You want your ...
*Wednesday, November 6, 2013 at 4:18pm*

**Career (Ms.Sue)**

I want to be a lawyer do I have to do a master degree? what qualifications do I need? what subjects a suitable for college?
*Wednesday, November 6, 2013 at 3:13pm*

**college math**

Math homework please help!! 2. Suppose that people’s weights are normally distributed, with mean 175 pounds and a standard deviation of 6 pounds. Round to the nearest hundredth of a percent a. What percent of the population would weigh between 165 and 170 pounds? b. What ...
*Tuesday, November 5, 2013 at 5:37pm*

**College Algebra**

A plane takes off from the ground at a 14-degree angle. After flying straight for 10,000 feet, what is the altitude of the plane?
*Tuesday, November 5, 2013 at 1:28pm*

**college resume**

Is there any way to edit or improve this? Community Service Description Grades(s) Hrs/wk wk/yr BuildOn Raised $2,000 through active fundraising and community service, donated all funds to Malawi, lived with a host 10 56 4 family for a week to fully ascertain their lifestyle, ...
*Tuesday, November 5, 2013 at 12:49pm*

**college algebra**

Use a calculator to find y to four decimal places, if possible. (If an answer is undefined, enter UNDEFINED.) ln y = log 9
*Monday, November 4, 2013 at 8:18pm*

**college algebra**

Use a calculator to find y to four decimal places, if possible. (If an answer is undefined, enter UNDEFINED.) ln y = −0.35
*Monday, November 4, 2013 at 8:18pm*

**college Algebra**

Use a calculator to find y to four decimal places, if possible. (If an answer is undefined, enter UNDEFINED.) ln y = −0.35
*Monday, November 4, 2013 at 5:40pm*

**college Algebra**

Use a calculator to find y to four decimal places, if possible. (If an answer is undefined, enter UNDEFINED.) ln y = log 9
*Monday, November 4, 2013 at 5:40pm*

**college Algebra**

Use a calculator to help solve the problem. The life expectancy of white females can be estimated by using the function = 78.5(1.001)x, where x is the current age. Find the life expectancy of a white female who is currently 50 years old. Give the answer to the nearest tenth. L...
*Monday, November 4, 2013 at 4:32pm*

**college algebra**

Use a calculator to help solve the problem. The intensity I of light (in lumens) at a distance x meters below the surface is given by I = I0 k x, where I0 is the intensity at the surface and k depends on the clarity of the water. At one location in the Atlantic ...
*Monday, November 4, 2013 at 4:13pm*

**College Algebra**

Use a calculator to help solve the problem. One isotope of holmium, 162Ho, has a half life of 22 minutes. The half-life of a second isotope, 164Ho, is 37 minutes. Starting with a sample containing equal amounts, find the ratio of the amounts of 162Ho to 164Ho after two hours...
*Monday, November 4, 2013 at 4:07pm*

**Statistics**

The business college computing center wants to determine the proportion of business students who have laptop computers. If the proportion exceeds 35%, then the lab will scale back a proposed enlargement of its facilities. Suppose 200 business students were randomly sampled and...
*Monday, November 4, 2013 at 2:35pm*

**College Physics**

A uniform rod of mass M = 437.0 g and length L = 37.1 cm stands vertically on a horizontal table. It is released from rest to fall. A)Which of the following forces are acting on the rod? B)Calculate the angular speed of the rod as it makes an angle θ = 45° with ...
*Sunday, November 3, 2013 at 8:24pm*

**College Physics**

A force, F = (2x + 3y) N, is applied to an object at a point whose position vector with respect to the pivot point is r = (5x + 4y + 2z) m. Calculate the torque (in units on Nm) created by the force about that pivot point.
*Sunday, November 3, 2013 at 5:48pm*

**Finance**

which of the following items would a personal loan be a better option than a credit card for a college student. A. Car insurance expense B. Tuition and dorm fees C. Trips home for the holidays D. Tickets to sporting events
*Sunday, November 3, 2013 at 1:11pm*

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