Friday

October 21, 2016
Total # Posts: 1,913

**COLLEGE **

-4 TO THE SECOND POWER + 5 =

*February 17, 2016*

**chemistry**

Calculate the energy (in kJ) required to heat 25 g of liquid water from 25oC to 100.oC and change it to steam at 100oC. The specific heat capacity of liquid water is 4.18 J/goC, and the molar heat of vaporization of water is 40.6 kJ/mol.

*February 17, 2016*

**Math**

An unknown radioactive substance has a half-life of 124 years. How long will it take a 67 grams sample to degrade to 18 grams?

*February 17, 2016*

**College**

-42-@ -4second power + 5 =

*February 16, 2016*

**Geography**

It is actually the first second, and third not the last, thanks anyway.

*February 10, 2016*

**Geography**

It was a typo, sorry.

*February 10, 2016*

**Geography**

*East Asia

*February 10, 2016*

**Geography**

Could someone please help, please?

*February 10, 2016*

**Geography**

which question would best help you analyze the population density of north korea? You have to choose 3 correct answers. How many square miles does East Asia covers? <--- Which region of North Korea has the best geography for farming? What is the population of North Korea&#...

*February 10, 2016*

**Chemistry**

Calculate the concentration of H+ ions of an aqueous solution of nitrous acid ( HNO2) to 0.02 mol/L knowing that the degree of ionization of acid is 3%

*January 20, 2016*

**Physics**

A 40kg mass hangs from two cables. One cable is at a 25 degree angle. The other cable is horizontally attatched to the mass. Find the tension for each cable

*January 14, 2016*

**Math**

George bought some CDs at his local store. He paid $15.95 for each CD. Nora bout the same number of CDs from a store online. She paid $13.95 for each CD, but had to pay $8 for shipping. In the end, both George and Nora spent the exact same amount of money buying their CDs! How...

*January 13, 2016*

**math**

9:21 :) Have a good day! Happy New year!

*January 12, 2016*

**English**

What literary device is most strongly represented in the following line from “Beowulf?” “Follower and the strongest of the Geats” A. Alliteration B. Hyperbole C. Kenning D. Caesura

*January 12, 2016*

**PHYSICS**

No, it cannot.

*January 12, 2016*

**Math**

2 2/5

*December 27, 2015*

**Pre Calc**

Solve 0=e^3x-9e^2x+20e^x

*December 18, 2015*

**physics**

A team of dogs drags a 81.2 kg sled 3.12 km over a horizontal surface at a constant speed.The coefficient of friction between the sled and the snow is 0.172. The acceleration of gravity is 9.8 m/s^2 Find the work done by the dogs. Answer in units of kJ.

*December 9, 2015*

**Algebra**

A rectangular yard measuring 25ft by 35ft is bordered (and surrounded) by a fence. Inside, a walk that is 2ft wide goes all the way along the fence. Find the area of this walk. Be sure to include the correct unit in your answer.

*December 8, 2015*

**Mahiga**

a sample of 0.5g gaseous alkane occupies a volume of 200cm3 at STP,find molar Mass

*December 7, 2015*

**physics**

A 48-kg girl stands on a 8-kg wagon holding two 19.5-kg weights. She throws the weights horizontally off the back of the wagon at a speed of 9.0 m/s relative to herself. - Assuming that the wagon was at rest initially, what is the speed of the girl after she throws both ...

*December 5, 2015*

**Glades academy**

The sum of twenty one and five times a number f is 61 total

*December 2, 2015*

**Chemistry **

112.00g of nitrogen gas is reacted with an excess or abundant amount of oxygen gas. The single product, a gas, is determined to have a mass of 431.92 g. Additional experiments showed that the product consisted of 2.0 moles. a) how many grams of oxygen reacted? b) what percent ...

*December 2, 2015*

**social studies**

What is social studies?social studies is when you learn about your history and they tell you what happen back then when a lot of us wasn't born and then they tell you to do your warm up.

*November 30, 2015*

**math**

What is temperature when you do math. In seventh grade math is hard and I don't understand what my teachers tell me they say that it is easy but i don't think it is i need a lot of help during math it used to be my favorite subject but now its not

*November 30, 2015*

**Solving ratio problems**

Write three equivalent ratios for each? a). 2 : 1 = b). 32 : 4 = c). 27 : 15 = d) 10/3 =

*November 29, 2015*

**science**

A person drive an automobile with a mass of 450 kilograms at a velocity of 26 meters per second. The driver accelerates to a velocity of 30 meters per second. The difference in the automobile's kinetic energy is how many joules?

*November 18, 2015*

**Algebra 2**

Can someone help me with this equation please? The directions are: Write an equation for the line in point/slope form and slope/intercept form that has the given condition. And the problem is: x-intercept = 6 and y-intercept = -8 I'm confused though I thought you needed ...

*November 16, 2015*

**Social Studies Check my answers!**

Ms. Sue is trying to help us learn it and understand it, not help you cheat your way through school.

*November 16, 2015*

**Maths**

Show that (x + 1)(x – 3)(x – 4) = x3 – 6x2 + 5x + 12 I'm so sorry but I can't show any working for this as I don't have a clue how to factorise when there are no common letters and numbers? Thanks!

*November 12, 2015*

**physics**

It continues to fly along the same horizontal arc but increases its speed at the rate of 1.41 m/s.Find the magnitude of acceleration under these new conditions. Answer in units of m/s

*November 11, 2015*

**math**

A group of people were asked if they had run a red light in the last year. 325 responded "yes", and 294 responded "no". Find the probability that if a person is chosen at random, they have run a red light in the last year.

*November 8, 2015*

**Math**

Claudia is celebrating her birthday 18th. A year have 12 months. About haw many months lived Claudia in 18 years?.

*November 8, 2015*

**Science Ms. Sue Please**

1. The human endocrine system is made up of which of the following structures? (1 point) vessels receptors glands * chambers 2. Which of the following best describes the function of the endocrine system? (1 point) It secretes chemical messengers that travel through the blood ...

*November 5, 2015*

**Science**

1. The human endocrine system is made up of which of the following structures? (1 point) vessels receptors glands * chambers 2. Which of the following best describes the function of the endocrine system? (1 point) It secretes chemical messengers that travel through the blood ...

*November 5, 2015*

**Maths **

Sketch the curve with equation y = (x -1)³ - 4(x - 1) It's not really the sketching which is the problem but more working out where the graph crosses the x-axis and y-axis? I can see that it crosses the x-axis at 1 but am clueless as to the other two parts at which it...

*October 30, 2015*

**alegbra**

How long will it take for an investment to triple in value if it earns 11.75% compounded continuously?

*October 28, 2015*

**savannah tech**

Jessica need 74,000 in 6 years to buy a car how much she need to save every month she get 6% interest so how much without the interest

*October 25, 2015*

**English**

How to do the Calypso (from th odyssey book) GN page

*October 24, 2015*

**Math**

a pet store has 4 dogs for sale. they have three times as many fish for sale, twice as many birds for sale, and half as many cats for sale. How many total animals are for sale?

*October 22, 2015*

**math**

Factoring Algebra expression using the Distributive Property and factor out 3 3w + 18 3 x 6= 3w 3 (9+ 9) 3x 6= 18

*October 21, 2015*

**Social Studies Check my answers!**

C B D B 100%

*October 20, 2015*

**Business Consulting, Intro to Computers**

please help me

*October 15, 2015*

**maths**

thnx for the help

*October 15, 2015*

**Algebra**

-4(-3x+w)+6(-6w+2x)

*October 14, 2015*

**math**

i need help please...what is 5,602 minus 2,344 estimated

*October 11, 2015*

**Chemistry RUSH, Please **

1) How many grams of CH4 (MM = 16.043) are needed to react with 50.0g of CL2 (MM=70.91)? 2) What is the molarity of a solution prepared by dissolving 20.0 g of methanol, CH3OH, oara sufficient water to prepare 500 mL of solution? Show calculations

*October 8, 2015*

**bio statistics question!**

Does P(x) = x/5, where x can take values of 0, 1, 2, 3, describe a probability distribution? Would the answer be no because when x is 1, 2, or 3 the values become 0.2, 0.4, and 0.6. But in probability distribution the values have to be between 0 and 1?

*October 5, 2015*

**Literature**

WHEN GREEK MEETS GREEK Samuel Selvon (1923-1984)

*October 5, 2015*

**Chemistry **

With relation to Avogadro's Constant: How many hydrogen ions are present in 3 moles of dilute sulphuric acid? As sulphuric acid is H2SO4, I'm not sure whether the answer is: 2 x 6 x 10(23) = 1.2 x 10(24) OR 6 x 6 x 10(23) = 3.6 x 10(24) Thank you!

*October 4, 2015*

**math**

bret divided 3 1/2 by a number and got 4 1/2.what number did he divide by?

*October 1, 2015*

**Tech**

wrong, B D then A

*October 1, 2015*

**math**

The weight of box A is 4/5 of box B. If box B is placed on one side of a balance scale, it is balanced by box A and a 4/5 pound weight. How much does box B weigh?

*September 30, 2015*

**Math**

balace scale, it is balance by box a and a 4/5 pound weight. How much does box b weight .8 (12.8oz)1/5 B

*September 30, 2015*

**statistics**

WITH A SCIENTIFIC CALCULATOR JUST ENTER THE BELOW NUMBERS: 9!=362,880 OR MULTIPLY: 9*8*7*6*5*4*3*2*1=362,880 The probability is 1/362,889

*September 29, 2015*

**Math 1 Algebra**

What is 2p+4x=8 solve for x?

*September 25, 2015*

**math homework **

9. Jonathan and his band want to record and sell CDs. The recording studio charges an initial set-up fee of $250, and it charges $6.00 to burn each CD. a. Define the variables in this situation: • Let ____ = __________________________ • Let ____ = ...

*September 23, 2015*

**Economics**

Assume that the manufacturing of plastic (PVC) windows is a perfectly competitive industry. The market demand for plastic windows is described by a linear demand function: Q = (6000 -50P)/9. There are 50 manufacturers of plastic windows. Each manufacturer has the same ...

*September 22, 2015*

**algebra**

write a word phrase for the algebraic expression d+2

*September 21, 2015*

**management**

Quality at the source

*September 19, 2015*

**math**

Which expression represents the largest number? A. 40.1 3 1026 B. 4.1 3 1027 C. 0.411 3 1026 D. 0.04001 3 1025

*September 17, 2015*

**Ap world history**

D. The Development of A Quickly Maturing Rice

*September 16, 2015*

**Science**

Hoy can i name the entire physical universe?

*September 15, 2015*

**math**

The number of my hundreds plus the number of y thousands is 3.the number of my tens is 7 times the number of my hundreds.the number of my ones in 3 times the number of my thousands.all my digits are different.What number am i?

*September 12, 2015*

**math**

5y-3/5=4/5

*September 7, 2015*

**spanish**

Go back to the lesson and read. I'm doing the test and it's pretty simple just saying. You probably didn't even read the lesson.

*September 7, 2015*

**math**

A mile is 5,280 feet.between which two integers is the elevation in mile?

*September 2, 2015*

**english**

It suggests some rights are more important than others.

*August 29, 2015*

**Math**

The concrete for a sidewalk is being poured outside the perimeter of a new subdivision, which is a 280 ft. by 720 ft. rectangle. The building code requires that the sidewalk be 5 feet wide and 8 inches deep. How many cubic yards of concrete will need to be poured? math: ...

*August 29, 2015*

**NOVEL**

What does the word mimetic tell us about the difference between novels and most of the literature of the 1800s? A. Novels were unique in trying to imitate real life. B. The authors were new and unknown. C. Novels presented common things in new ways. D. Novels present fantasy ...

*August 27, 2015*

**algebra**

what is -4^4 thank you!

*August 26, 2015*

**HELPPPP! ELECTRONICS**

I think its C

*August 26, 2015*

**BUSINESS CONSULTING**

i need help with this one

*August 25, 2015*

**algebra**

I think it is: (-5)(-5)(-5)

*August 18, 2015*

**algebra**

write the following using exponents: -5-5-5

*August 18, 2015*

**math**

132 to 89

*August 17, 2015*

**physics**

Two blocks of masses is m and 2m are held in the equilibrium on a frictionless incline. In terms of m and x, find the magnitude of the tension t1 in the upper cord and the magnitude of the tension t2 in the lower cord connecting two blocks.

*August 11, 2015*

**Statistics**

About how many participants are needed for 80% power in each of the following planned studies that will use a t test for dependent means with p<.05?

*July 27, 2015*

**Personal Finance**

Assume that you are 23 years old and that you place $3,000 year-end deposits each year into a stock index fund that earns an average of 9.5% per year for the next 17 years. how much money will be in the account at the end of 17 years.

*July 17, 2015*

**Chemistry **

A student collected the following data for a fixed volume of gas: ￼Temperature (C) Pressure (mm of hg) 10 726 20 750 40 800 70 880 100 960 150 ??? Fill in the missing data point. Show all calculations leading to an answer.

*July 13, 2015*

**vacunero sto. domingo**

a 50 kg wagon is at rest on a rough surface.The coefficient of sliding friction is 0.85.How much force is needed to start moving the wagon.

*July 2, 2015*

**Math**

thanks!

*May 30, 2015*

**Math **

Find the 100th term in the sequence 77, 71, 65, 59 How do you go about doing this question without the need to list them all out?

*May 30, 2015*

**Math**

What is the units digit of 7^42 . I know I can just plug it in a calculator, but what is a faster way

*May 30, 2015*

**Math**

Thanks, that makes sense!

*May 30, 2015*

**Math**

Find the 100th place to the right of the decimal point in the decimal expansion of 1/13.

*May 30, 2015*

**help please**

Is the right answer A

*May 30, 2015*

**help please**

here is a public debate between the three candidates for the U.S. Senate. During the debate, the topics of oil and energy are addressed. Each candidate expressed their view on the issue: Edgar Eisenhower: "We need to cut our dependence on foreign oil. Instead, let's ...

*May 30, 2015*

**Civics**

If all counties in Florida had used the same procedures for recounting votes in the 2000 presidential election, then how might that have affected the outcome of Bush v. Gore? A. The ruling may have changed because the procedure that most of the counties used was ...

*May 30, 2015*

**civics**

It is constitutional rights

*May 30, 2015*

**civics**

rights sorry!

*May 30, 2015*

**civics**

What do you mean by constitutional "rents"?

*May 30, 2015*

**civics**

The First Amendment to the Constitution protects freedom of speech and of the press. Which of the following examples best demonstrates the constitutional rents? A. An advertisement contains incorrect information about a company's products. B. A man yells, "Fire!"...

*May 30, 2015*

**Civics**

can you please let me know if that answer is correct?

*May 30, 2015*

**Civics**

Form a special interest group

*May 30, 2015*

**Civics**

John knows many people who feel that small business need more support from the government. They support tax break and other benefits for small business owners. Which of the following best describes the most effective type of action these people could follow? A. attack the ...

*May 30, 2015*

**civics**

Is it C.?

*May 30, 2015*

**civics**

jill, the editor of the school newspaper, is running for class president. Her opponent is Jack, the captain of the school's ski club. Jill decides to make up a story to embarrass Jack and hurt his chances of wining the election. Would Jill's story be a protected form ...

*May 30, 2015*

**Civics**

thank you

*May 30, 2015*

**Civics**

How about answer A

*May 30, 2015*