Wednesday

September 28, 2016
**math**

7. Professors’ Salaries The average salary for a Queens College full professor is $85,900. If the average salaries are normally distributed with a standard deviation of $11,000, find these probabilities. a. 0.3557 (TI: 0.3547) a. The professor makes more than $90,000. b. ...

*Monday, October 26, 2015 by Alma*

**COLLEGE CALCULUS HELP**

If two resistors with resistances R1 and R2 are connected in parallel, as in the figure below, then the total resistance R, measured in ohms (Ω), is given by 1 R = 1 R1 + 1 R2 . If R1 and R2 are increasing at rates of 0.3 Ω/s and 0.2 Ω/s, respectively, how fast ...

*Monday, October 26, 2015 by Anonymous*

**math**

Bass: The bass in Clear Lake have weights that are normally distributed with a mean of 2.3 pounds and a standard deviation of 0.6 pounds. (a) If you catch one random bass from Clear Lake, find the probability that it weighs less than 1 pound? Round your answer to 4 decimal ...

*Monday, October 26, 2015 by robin*

**College Chemistry**

Suppose 15.0 grams of solid sodium hydroxide solid at 20.5 oC is dropped into 120 grams of water in a container that has a heat capacity of 10.0 J/oC, temperature also 20.5 oC. A solution that has a density of 1.04 g/mL forms at a temperature of 38.0 oC. What is the heat of ...

*Sunday, October 25, 2015 by Matt235*

**math**

one-half of the students in a city school plan to enter liberal arts colleges and one-third of the students plan to go to junior college.The remaining 300 pupils expect to seek permanent employment after graduation.How many students are there in this school?

*Sunday, October 25, 2015 by Linda*

**College Physics**

A student throws a 140 g snowball at 7.5 m/s at the side of the schoolhouse, where it hits and sticks. What is the magnitude of the average force on the wall if the duration of the collision is 0.19 s ?

*Friday, October 23, 2015 by Anonymous*

**Math**

The time needed to complete a final examination in a particular college course is normally distributed with a mean of 83 minutes and a standard deviation of 13 minutes. Answer the following questions. What is the probability of completing the exam in one hour or less (to 4 ...

*Thursday, October 22, 2015 by Kelsey*

**Math**

First year students at a particular college must take one English class, one class in mathematics, a first year seminar, and and elective. There are 2 English class to choose from, 3 mathematicss classes, 5 electives, and everyone takes the same first year seminar. Represent ...

*Thursday, October 22, 2015 by Sierra*

**college algebra**

a cake recipe calls for 1 2/4 cups of sugar. A caterere has 15 1/2 cups of sugar on hand. how many cakes can he make?

*Wednesday, October 21, 2015 by Trina*

**college algebra**

21/3 cups tomato sauce makes dnough sauce for seven people. how much tomato sauce for one serving

*Wednesday, October 21, 2015 by Anonymous*

**college writting two**

Could this be a thesis lower minimum wages are detrimental for disabled and college students.

*Tuesday, October 20, 2015 by Angel*

**Math**

Three fourths of college students use the internet more than the library. Nine hundredths use the library more. How many times more students use the internet?

*Tuesday, October 20, 2015 by Amaru*

**College Physics**

A 1670 kg car rolling on a horizontal surface has a speed of 80 km/hr when it strikes a horizontal coiled spring and is brought to rest in a distance of 6.5 m. What is the spring constant (in N/m) of the spring? (Ignore nonconservative forces such as friction.) Now I've ...

*Tuesday, October 20, 2015 by Keya*

**college**

A tank for storing water is conical in shape, with maximum radius 20 m and maximum depth 15 m. The large, circular end of the tank points vertically upwards and is open to the air. It is known that the volume of water in the tank will decrease at a rate proportional to ...

*Monday, October 19, 2015 by Pankaj*

**College Algebra**

The equationS = 1.3x + 6.4 represents the amount of sales of statin in billions of dollars in 2005. a. According to this equation, people in the U.S spent ---- billion dollars on statins in the year of 2011. b. According to this equation, sales of statin will reach 20.41 ...

*Sunday, October 18, 2015 by Sara*

**College Chemistry**

the acid dissociation constant for acetic acid is 1.85x10^-5. Calculate the pH at the equivalent point and the pH at one-half the equivalence point for the titration of 25.00 mL of 0.100 M acetic acid with 0.100 M NaOH?

*Sunday, October 18, 2015 by Courtney*

**gaya ,college science**

Which one of the following is an alkaline earth element? a) carbon b)sodium c)zinc d)iron

*Sunday, October 18, 2015 by gaurav verma*

**College**

Please,i need a chemical balanced equation between diethyl ether+ conc.sulphuric acid+ glacial acetic acid

*Friday, October 16, 2015 by Rachel*

**Intermediate Algebra for College**

Imagine that you are looking to rent a car that costs $15 a day, and you will be charged an additional 25 cents for every mile you drive it during the day. The following formula can be used to calculate the cost for driving the car for a day: C = 0.25m + 15 If you were to ...

*Thursday, October 15, 2015 by Michelle*

**joint heirs college, Fola agoro, shomolu Lagos. **

CHEMISTRY (1) What is the equation for reaction when calcium oxide and coke are heated in electric furnace (2) what solid remains when the following is heated-(a) lithium trioxonitrate (v), (b) potassium trioxonitrate (v), (c) calcium trioxonitrate (v). (3) addition of water ...

*Thursday, October 15, 2015 by Agunlejika Precious *

**College/Career Math**

You choose a tile at random from a bag containing 5 tiles with A, 9 tiles with B, and 4 tiles with C. You pick a second tile without replacing the first. Find each probability. P (A then C) P (C then B)

*Wednesday, October 14, 2015 by Bethanie*

**college algeb**

1.) 3(t+1)>2t 2.) 2p+1/5 > -3 3.) x^2-3x-10 >= 10 please help and show solution

*Wednesday, October 14, 2015 by Denzel*

**college algeb**

Inequalities 1.) 3(t+1)>2t 2.) 2p+1/5 > -3 3.) x^2-3x-10 >= 10

*Wednesday, October 14, 2015 by Denzel*

**U.S. History **

1. Explain why Secretary of State James G. Blaine convened the Pan-American conference in 1889. A: James Blaine convened the Pan-American conference because he wanted to create a customs union between Latin America and the United States. A customs union would require American ...

*Tuesday, October 13, 2015 by Victoria*

**college algebra**

Throwing A ball: A ball is thrown vertically from ground level with an initial speed of 108 ft/s. A. When will the ball hit the ground? B. When will the ball be 180 ft above the ground? h=-16t^2VT+H

*Tuesday, October 13, 2015 by Hugo*

**college algebra**

SELLING PEANUTS-samuel operates a small peanut stand. He estimates that he can sell 600 bags of peanuts per day if he changes 50 cents for each bag. He determines that can sell 20 more bags for each 1 cent reduction in price. A. What would his revenue be if he changed 48 cent ...

*Tuesday, October 13, 2015 by Hugo*

**college algebra**

r75x^8/121y^12

*Tuesday, October 13, 2015 by Hugo*

**gov**

How many votes does each state have in the Electoral College? is equal to number of members the state has in congress Just checking if this is correct.

*Monday, October 12, 2015 by Adam*

**College Algebra**

A train leaves New York for Boston, 200 miles away, at 3:00 P.M. and averages 70 mph. Another train leaves Boston for New York on an adjacent set of tracks at 4:00 P.M. and averages 55 mph. At what time will the trains meet? (Round to the nearest minute.)

*Monday, October 12, 2015 by Sarah*

**College Algebra **

The monthly cost in dollars from producing x units of an item is given by the cost function C(x)=2x^2-160x+18400. How many units will result in the minimum cost? I do not know how to start this problem. Thank you for your help!

*Monday, October 12, 2015 by Hannah*

**Statistics**

A researcher is studying the effects of caffeine on exam scores of college students. In this study: What would be the population and sample of this research? Extrapolate your views of the advantages and disadvantages of samples and populations to this example. Why would the ...

*Friday, October 9, 2015 by Slomo*

**M.L.T college,saharsa**

√x+y=11 x+√y=7

*Thursday, October 8, 2015 by Vimal Shukshma Raj*

**College algebra**

Suppose that a sales person observes that if an item is priced at $3 per item then 11 items are sold. If 9 items are sold for $5 per item then find a liner equation to model the number y of items sold for x dollars per item. Find the slope intercept form of the equation of the...

*Thursday, October 8, 2015 by Raven*

**college algebra**

fish population: the fish population in a certain lake rises and falls according to the formula F=1000(30+17t-t^2) , Here F is the number of fish at time t, where t is measured in years since January 1, 2002, when the fish population was first estimated. a) On what date will ...

*Thursday, October 8, 2015 by sheen*

**Quick english check**

Use adapt, alleviate, anecdote, attributed, diminutive, distinct, endowed, enhance, facilitating, incantation, irony, linguistic, mitigates, ponderous, restitution, and resuscitate to put in the correct sentence. Please correct me if I’m wrong! On July19, 2015, the ...

*Wednesday, October 7, 2015 by Anonyomous *

**english**

Q5. Repair Fragments. ( 2.5 ) i. Wanting to participate in the full college experience. ans. In the full college experience,wanting to participate. ii. The announcement of the return of intercollegiate athletics. ans. (I am unable to answer this) iii. For example, blueberry ...

*Tuesday, October 6, 2015 by javeria*

**Himma International College Minna**

Chemistry: 30cm^3 of a mixture of methane and ethyne require 70cm^3 of oxygen for complete combustion. Calculate the composition of the mixture

*Tuesday, October 6, 2015 by Khadeejah *

**college algebra math help**

Laura owns and operates Aunt Linda's Pecan Pies. She has learned that her profits, P(x), from the sale of x cases of pies, are given by P(x) = -x^2 + 14x + 51. a. The company will "break-even" when the profit is zero. How many cases of pies should Laura sell in ...

*Saturday, October 3, 2015 by Anonymous*

**Math**

The student to faculty ratio at a small college is 17:3. The total of students to faculty is 740. How many faculty members are there at the college? How many students?

*Friday, October 2, 2015 by Anaalicia*

**Physics - Inverted pendulum**

Hello. My son is in pre-school, but he's already starting his Undergraduate for college. Never too early to start, right? So he got this problem for homework. Can anyone help? He supposedly needed "nap time" and slept through the entire lecture the professor was ...

*Friday, October 2, 2015 by John Cena*

**College Algebra **

find all zeros of the function 6x^3+43x^2+6x+7

*Friday, October 2, 2015 by Anonymous*

**statistics**

The Economic Policy Institute periodically issues reports on wages of entry level workers. The Institute reported that entry level wages for male college graduates were $21.68 per hour and for female college graduates were $18.80 per hour in 2011 (Economic Policy Institute ...

*Thursday, October 1, 2015 by gabby*

**math**

There are 80 questions on a college entrance examination. Two points are awarded for each correct answer, and one-half point is deducted for each incorrect answer. How many questions does Tami need to answer correctly in order to score at least 100 on the test? Assume that ...

*Wednesday, September 30, 2015 by K. Smith*

**college algebra**

Kiran drove from City A to City B, a distance of 242 mi. She increased her speed by 10 mi/h for the 351-mi trip from City B to City C. If the total trip took 12 h, what was her speed from City A to City B?

*Wednesday, September 30, 2015 by Maggie*

**College english **

The phrase that signals a contrast context is A. Such as. B.on the other hand C.for instance D.to illustrate I think it is D

*Wednesday, September 30, 2015 by jeny*

**segi college**

Do you think that southwest actions are consistent with its mission?explain ways in which the firms action are consistent or inconsistent with its mission

*Tuesday, September 29, 2015 by alex*

**College Algebra**

simplify expression (no negative exponents) -2^-3(xy^3)^-2/x^-1y^-3 I got 1/-8x^2y^2

*Tuesday, September 29, 2015 by Tim*

**College Algebra**

factor completely: 16x^2 + 16x-21 I got not factorable...

*Tuesday, September 29, 2015 by Tim*

**College algebra**

A seamstress is designing a triangular flag so that the length of the base of the triangle, in inches, is 7 less than twice the height h. Express the area of the flag as a function of the height. I have figured out the area, but i'm not sure what the question means when it...

*Tuesday, September 29, 2015 by Amber*

**College Algebra**

1 - 1 = 1 ______________________________________ 4x-12 2x-6 x^2-3x Solve the equation (its subtracting the first two fractions and equalling the last fraction)

*Tuesday, September 29, 2015 by Tim*

**College Algebra**

Use quadratic formula to solve: 5x^2-10x+6=0

*Tuesday, September 29, 2015 by Tim*

**College algebra**

A seamstress is designing a triangular flag so that the length of the base of the triangle, in inches, is 7 less than twice the height h. Express the area of the flag as a function of the height.

*Monday, September 28, 2015 by quel*

**College Algebra**

Consider two circles. A smaller one and a larger one. If the larger one has a radius that is 8 ft longer than the smaller one, and if the ratio of the circumference is 3:1, then what are the radii of the two circles?

*Monday, September 28, 2015 by Tim*

**College Algebra**

write in standard form a+bi: (2+3i)^3

*Monday, September 28, 2015 by Tim*

**History**

1) Which of the statements describes someone who would have been most likely to move to New Mexico after World War II? A)a Pueblo woman who lives near Santa Fe B)a college student in nearby Colorado C)a pilot who trained at Kirtland Air Force Base during World War II D)a ...

*Monday, September 28, 2015 by Appreciated Help*

**College algebra**

Curt can be paid in one of two ways for the sales he generates: Plan A: 900$ per month plus 10% sales commission. Plan B: $1200 per month plus 15% commission on sales above $8,000. Assuming he always exceeds $8,000 in sales, for what amount interval of $ sales is Plan B better?

*Sunday, September 27, 2015 by quel*

**college algebra**

Marissa is designing a rectangular poster whose width is 2/3 of its height. Its perimeter will be 100 inches. what are the dimensions of the poster?

*Sunday, September 27, 2015 by quel*

**college algebra**

A freight rain leaves a station and travels north at a constant rate of 60 mph. One hour later a passenger train leaves the same station traveling north on a parallel track at 80 mph. How long will it take for the passenger train to draw even with the freight train?

*Sunday, September 27, 2015 by quel*

**St Teresas College **

Subject:Chemistry What is the difference between seawater and pure water in terms of osmotic pressure and vapour pressure?

*Saturday, September 26, 2015 by Sulu*

**St Teresas College**

What would be the difference between seawater and pure water in terms of osmotic pressure and vapour pressure?

*Saturday, September 26, 2015 by Anonymous*

**Kabe college**

What is the resultant of two equal forces of magnitude f,acting at right angles to each other

*Friday, September 25, 2015 by Emmanuella*

**College Algebra**

Find the time required for an investment of 5000 dollars to grow to 7900 dollars at an interest rate of 7.5% per year, compounded quarterly

*Thursday, September 24, 2015 by Marina*

**College Algebra**

A wooden artifact from an ancient tomb contains 45% of the carbon-14 that is present in living trees. How long ago, to the nearest year, was the artifact made

*Thursday, September 24, 2015 by Marina*

**college chemistry**

From your mass of MgNH4PO4.6H2O collected, calculate your value a) for the mass of "P2O5" in the initial mass of fertilizer analyzed b) the % "P2O5" in the fertilizer. Compare this with the manufacturer's specification. Just want to know how i would go ...

*Wednesday, September 23, 2015 by ali*

**college chemistry**

From your mass of MgNH4PO4.6H2O collected, calculate your value a) for the mass of "P2O5" in the initial mass of fertilizer analyzed b) the % "P2O5" in the fertilizer. Compare this with the manufacturer's specification. Just want to know how i would go ...

*Wednesday, September 23, 2015 by ali*

**green valley college**

automotive airbags inflate when sodium aside NaN3 Rapidly decomposes to its consistent elements. the equation for the chemical reaction is NaN3=Na+In2 The gaseous N2SO generated inflates the airbag. How many moles of NaN3 would have to decompose in order to generate 253 ...

*Wednesday, September 23, 2015 by rosvel*

**green valley college**

the principal constituents of natural gas is methane which burns in air according to the reaction CH4+O2=CO2+H2O How many grams of CO2 is produced when you have 50g of both CH4 and O2 what is the limiting reactant?

*Wednesday, September 23, 2015 by rosvel*

**L.A**

Which of the following expresses a main idea from Always to Remember? a.Maya Ying Lin was a talented and smart college student who became a designer. b.Maya Ying Lins family life, travel experiences, and education provided her a background necessary for a winning design. c....

*Tuesday, September 22, 2015 by Amber*

**statistics**

Pharmaceutical companies advertise for the birth control pill an annual efficacy of 98.6% in preventing pregnancy. However, under typical use the real efficacy is only about 95%. That is, 5% of women taking the pill for a year will experience an unplanned pregnancy that year. ...

*Monday, September 21, 2015 by angelica*

**probability **

The National Center for Educational Statistics reported that in 2009 the ACT college placement and admission examination were normally distributed and had a mean of 21.1 and standard deviation of 5.1. A college requires applicants to have an ACT score in the top 20% of all ...

*Monday, September 21, 2015 by matt*

**College Physics**

A snowball off a roof that slopes downward at an angle of 40degrees. The edge of the roof is 14 m above the ground and the snowball has a speed of 8 m/s as it rolls off the edge of the roof. If a 1.8 m tall man is standing 4 m from the top of the edge of the roof, will he be ...

*Monday, September 21, 2015 by Bryan*

**College Algebra **

Randall is 105 years old. Colleen is 5 years old. How many years until Randall's age is 5 times Colleen's age?

*Sunday, September 20, 2015 by Jai*

**physics**

In college softball, the distance from the pitcher's mound to the batter is 43 feet. If the ball leaves the bat at 105 mph, how much time elapses between the hit and the ball reaching the pitcher? I figured out how many ft there would be in a second, but I'm not so ...

*Friday, September 18, 2015 by Laura*

**college algebra**

The total yearly food bill for a family of four is $9395.59. To the nearest cent, what is the mean weekly food bill?

*Friday, September 18, 2015 by Jacqueline*

**U.S history**

Was Slavery the basis of freedom in colonial America? This what I hvae written I feel like its to much and would like to shorten it and make it sound more college level plz help. In colonial America slavery was the basis of freedom. In areas such as Europe and foreign ...

*Wednesday, September 16, 2015 by rachel*

**Writing**

Please check this thesis statement. Thesis: While some college students want to be completely independent by leaving home, it is worthy to note that dependence is necessary at times.

*Wednesday, September 16, 2015 by Anonymous*

**college algebra**

195, 176, 215, 200, 189, 232, 201 mean= median= mode= 25% percentile= 75% percentile= maximum= minimum= range=

*Wednesday, September 16, 2015 by tim*

**Writing**

I concede that my thesis is vague. This is still vague to me. What are these "essential life skills"? If you list some (and make them specific), I'll help you work them in. • Re-write: Through their difficult times in college, students will be armed with ...

*Wednesday, September 16, 2015 by Anonymous*

**college algebra**

Country CO2 Emissions (tons of carbon dioxide) 2012 population ￼ Emissions per Capita ￼ China 8,782,000,000 1,359,750,000 ￼ ￼ ￼ United States 5,144,000,000 316,597,000 ￼ ￼ India 2,185,000,000 1,233,460,000 ￼ Russia &#...

*Wednesday, September 16, 2015 by tim*

**college algebra**

In Japan, there were 94,848 deaths attributed to heart disease and the population of Japan is about 128 million. If the United States were able to reduce its number of deaths to be proportional to that of Japan, about how many deaths due to heart disease would be expected? (...

*Wednesday, September 16, 2015 by tim*

**Writing-Writeacher**

This is still vague to me. What are these "essential life skills"? If you list some (and make them specific), I'll help you work them in. • Re-write: Through their difficult times in college, students will be armed with perseverance and determination which ...

*Wednesday, September 16, 2015 by Anonymous*

**Writing**

This is still vague to me. What are these "essential life skills"? If you list some (and make them specific), I'll help you work them in. • Re-write: Through their difficult times in college, students will be armed with perseverance and determination which ...

*Wednesday, September 16, 2015 by Anonymous*

**Writing**

Please check my rewrites (the ones with a black dot/bullet). Thank you! a. The importance of your family. Thesis: The success of a child depends on the support of his or her family. * I think this is debatable because the other side could argue that the success of a child ...

*Wednesday, September 16, 2015 by Anonymous*

**college algebra**

Are total emissions or per-capita emissions a better gauge when comparing the CO2 emissions of various countries? Why?

*Wednesday, September 16, 2015 by tim*

**college algebra**

In Japan, there were 94,848 deaths attributed to heart disease and the population of Japan is about 128 million. If the United States were able to reduce its number of deaths to be proportional to that of Japan, about how many deaths due to heart disease would be expected? (...

*Wednesday, September 16, 2015 by tim*

**college algebra**

According to the CDC there were 597,689 deaths in the US in 2010 attributed to heart disease. Given that the US population in 2010 was close to 308 million, what was the death rate per capita for heart disease in the US for 2010? (round to five decimal places)

*Wednesday, September 16, 2015 by tim*

**Chemistry college**

You are given a recipe for a buffer that contains 5% (w/v) MgSO4.7H2O. However, you only have MgSO4 anhydrous available to you. How much MgSO4 anhydrous do you need to make 0.5L of the buffer with the same molar concentration as in the recipe? Show your calculations

*Wednesday, September 16, 2015 by Anna*

**college algebra**

The Johnsons plan to put down all-weather carpeting on the porch. The length of the porch is 2 feet longer than twice the width, and the perimeter is 64 feet. Find the dimensions of the porch.

*Wednesday, September 16, 2015 by Cornelius*

**college algebra **

In the state of Indiana, 192,031 people claim not to speak English very well. If this is 3.2% of the population of Indiana residents aged 5 years and older, estimate the population of Indiana residents aged 5 years and older. (round to the nearest person)

*Tuesday, September 15, 2015 by tim*

**college algebre**

There are approximately 314 million people in the U.S. If the world population is 7.1 billion people, what percent of the world population is in the U.S.? (round to one decimal place)

*Tuesday, September 15, 2015 by tim*

**Writing**

Please check my rewrites (the ones with a black dot/bullet). Thank you! a. The importance of your family. Thesis: The success of a child depends on the support of his or her family. * I think this is debatable because the other side could argue that the success of a child ...

*Tuesday, September 15, 2015 by Anonymous*

**Writing**

Please check my rewrites (the ones with a black dot/bullet). Thank you! a. The importance of your family. Thesis: The success of a child depends on the support of his or her family. * I think this is debatable because the other side could argue that the success of a child ...

*Tuesday, September 15, 2015 by Anonymous*

**Writing**

Formulate a workable thesis statement for each of the following general subjects and topics. Please give me some feedbacks on my thesis statements. Thank you! a. The importance of your family. Thesis: The success of a child depends on the support of his or her family. * I ...

*Tuesday, September 15, 2015 by Anonymous*

**Social Studies**

Please check my answers :) 1. Which of the following means producing just enough to meet the families' needs, with little left to sell or exchange? a. harvesting b. substance farming**** c. cash crop d. tidewater farming 2. The Proclamation of 1763 called for a. settlers ...

*Tuesday, September 15, 2015 by Alexis*

**Writing**

Formulate a workable thesis statement for each of the following general subjects and topics. a. The importance of your family. Thesis: The success of a child depends on the support of his or her family. b. The difficulty of adjusting to college. Thesis: Despite the difficulty ...

*Tuesday, September 15, 2015 by Anonymous*

**College Chemistry**

When one mole of C6H6 is burned, 3.27 MJ of heat is produced. When the heat from burning 7.59 g of C6H6 is added to 5.69 kg of water at 21.0°C, what is the final temperature of the water?

*Tuesday, September 15, 2015 by Angel*

**College Chemistry**

A 43.70 g sample of a substance is initially at 24.7 °C. After absorbing 1757 J of heat, the temperature of the substance is 120.5 °C. What is the specific heat (c) of the substance?

*Tuesday, September 15, 2015 by Angel*

**College Chemistry**

The specific heat of a certain type of cooking oil is 1.75 cal/(g·°C). How much heat energy is needed to raise the temperature of 2.83 kg of this oil from 23 °C to 191 °C?

*Tuesday, September 15, 2015 by Shannon*

**College Chemistry**

When one mole of C6H6 is burned, 3.27 MJ of heat is produced. When the heat from burning 5.43 g of C6H6 is added to 5.69 kg of water at 21.0°C, what is the final temperature of the water?

*Tuesday, September 15, 2015 by Shannon*

**satistics**

Among a random sample of 500 college students, the mean number of hours worked per week at non-college related jobs is 14.6. This mean lies 0.4 standard deviations below the mean of the sampling distribution. If a second sample of 500 students is selected, what is the ...

*Tuesday, September 15, 2015 by Lissa*