# College

college intermediate algebra
Working together, two people can mow the lawn in 24 minutes. Working alone, one person takes 20 minutes longer than the other. How many minutes would it take each person to mow the lawn alone? Thanks!!!

College Chemistry
Consider the following reaction, equilibrium concentrations, and equilibrium constant at a particular temperature. Determine the equilibrium concentration of SO2(g). 2SO2(g)+O2(g)=2SO3(g) Kc=1.7*10^8 [SO3]aq=0.0034 M [O2]aq=0.0018 M

Intermediate Algebra (College)
Solve algebraically: 14/x^2 - 5/x = 1 Thank you!!! (:

math
Yumi's grandparents presented her with a gift of \$11,000 when she was 8 years old to be used for her college education. Over the next 9 years, until she turned 17, Yumi's parents had invested her money in a tax-free account that had yielded interest at the rate of 5.5%/year ...

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.

college algebra
solve the system 2x+y=-4 -x+y= 2

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

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

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 ...

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.

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

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

English
Q: To be a doctor at a hospital, do they all need to get doctors's degree in college?

College algebra
Solve the system Y=3x-2 6x-2y=30

College algebra
Solve the system X=2y+3 3x+4y=59

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?

College Algebra
A= [2 3 0] [4 1 6] 1. what is the additive inverse of A? 2. find 3A.

College Algebra
Line m passes through (2,5) and (-3,-2) Find the slope of a line that is perpendicular to line m.

College Algebra
Find the probability of drawing two i's in a row without replacement.

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?

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.

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 ...

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

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 ...

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 ...

College alerbra
solve the exponential equation. 4^(x+2)=9x

College
7x+6=x-30

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 ...

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 ...

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?

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.

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 ...

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

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.

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

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 ...

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

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?

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.

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

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.

College Algebra
Identify a different point on the line (with whole number coordinates) and tell what it represents.

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.

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

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?

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?

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.

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.

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)

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

College Algebra
Solve the System 2x-8y=20 3x-12y=30

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.

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.

College Algebra
Change the equation 5x+3y=60 to slope-intercept form.

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.

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 ...

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?

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}

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)

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 = _____

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

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.

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. certified ...

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

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 = _____

college algebra
In 4 years, 30% of a radioactive element decays. Find its half-life. (Round your answer to one decimal place.) _____ yr

College and Social studies Courses
Is Economic 201 or 202 equivalent to AP Microeconomic or AP Macroeconomic?

College and Math Courses
Is statistic 243 equivalent to AP Statistic?

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, ...

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 ...

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 ...

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.

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.

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...

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 ...

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 ...

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) ...

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)

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?

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 ...

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 answer. This ...

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 ...

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 in 2006. Each ...

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. ...

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 ...

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 ...

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 ...

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...

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 ...

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?

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 ...

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?

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, ...

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

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

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

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

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...

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 ...

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...

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