Thursday

September 29, 2016
Total # Posts: 1,085

**analytical chemistry**

Calculate the concentration of the initial nitrate stock solution (in ppm) if exactly 0.361 g of KNO3 is dissolved in a 1 L volumetric flask with distilled water. Here I want the concentration of nitrogen in ppm.

*September 22, 2016*

**analytical chemistry**

Calculate the concentration of the initial nitrate stock solution (in ppm) if exactly 0.361 g of KNO3 is dissolved in a 1 L volumetric flask with distilled water.

*September 21, 2016*

**math**

How many centimeters would represent 40 kilometers if you were using a scale of 1 cm = 1 m? 1 cm = 1 m 40 km = X x = 1 x 40 x = 40 cm

*September 14, 2016*

**math**

Thank you!

*September 14, 2016*

**math**

What distance on the ground does 5 inches on a map represent if the scale is 1 in. = 1.5 mi.? 1 inch = 1.5 miles 5 inches =X x- 1.5 x5 x= 7.5 miles

*September 14, 2016*

**geometry**

if one of the two vertical angles has a measure of 3x and the other has a measure of 5x - 80. Find the measure of each.

*September 14, 2016*

**physic**

Somehow two students managed to open two windows at the library. Student A is 17 m above the ground and Student B is 23.5 m above the ground. At the same time that Student A drops a ball, Student B throws a ball straight down at an initial speed of 7.36 m/s. At what height ...

*September 11, 2016*

**physic**

Somehow two students managed to open two windows at the library. Student A is 17 m above the ground and Student B is 23.5 m above the ground. At the same time that Student A drops a ball, Student B throws a ball straight down at an initial speed of 7.36 m/s. A. At what height ...

*September 8, 2016*

**Math**

5x -7(2-4x)

*September 5, 2016*

**Accounts**

Owner Started a business investing $11,000 and $7,000 equipment. how do i record this

*September 1, 2016*

**math**

two numbers are reciprocals of each other and whose sum is 3

*August 17, 2016*

**chemisrty**

an object has a mass of 123 g and volume of 17cm3. calculate the density of the object

*August 14, 2016*

**algebra**

The denominator of a fraction is 2 more than the numerator.If 1 is subtracted from both numerator and denominator,the result in fraction has value of 1/2.Find the original faction.

*July 31, 2016*

**math**

how to put 2/3,1/2,4/5 and 7/30 in ascending order

*July 4, 2016*

**Math**

A balloon 150 meters from the observer is rising vertically at constant rate. After 1 minute the angle of elevation is 28 degrees and 29 minutes. What is the angle after 3 minutes?

*June 22, 2016*

**math**

Sam has two bags of nuts; one with 77 % peanuts, and the other with 29 % peanuts. To make a 9 lb bag of 44 % peanuts, how much of each should Sam use?

*June 16, 2016*

**management**

what are the 10 most otstanding businesses in the philippines? who are the 10 most outstanding managers in the philippines? contributers of management?

*June 15, 2016*

**math**

Using the formula, compute the true annual interest rate. Loan amount = $9,500 Monthly payments = $227.50 Time of loan contract = 5 years True annual interest rate (to the nearest tenth) = _____.

*May 16, 2016*

**math**

Ashley is having a pizza party she invited 11 friends. She has 1 3/4 of a pizza. How much pizza will each friend get?

*May 3, 2016*

**life orientation**

the road users and risk they face

*April 21, 2016*

**Life orientation**

identify three human rights violations or discrimination and explain in an introductory paragraph why you choose the specific human right violation or discrimination

*April 19, 2016*

**Algebra**

Justine earned $26,000 during the first year of her job at city hall. After each year she received a 3% raise. Find her total earnings during the first five years on the job.

*April 13, 2016*

**grade 7 mathematics**

A bag contains 14 green tiles, 10 red tiles, and 16 blue tiles. What is the theorectical probability that you will randomly select a blue tile?

*April 7, 2016*

**History**

What are two important ways in which the mind and behavior of the non-conventional white-collar criminal are similar to the mind and behavior of the conventional street criminal, and what are two important ways in which they are different?

*April 1, 2016*

**math**

A 10-foot ladder is leaning against a wall. The base of the ladder is 2 feet from the base of the building. How far up the building does the ladder fall?

*March 22, 2016*

**Math/Precal**

Given sinA=3/5 and cosA=5/13, find sin2x

*March 18, 2016*

**Math**

This is similar to a question i seen below but how do i write cos^2 4-sin^2 4 as a single trigonometric function? And 1-2sin^2 3

*March 17, 2016*

**Social Studies**

Hawaii island

*February 29, 2016*

**Chemistry**

Are these isotonic hypertonic or hypotonic. 1.5% w/v NaCl 5.0% w/v glucose 0.55%w/v NaCl And why??

*February 23, 2016*

**4grade math**

:)

*February 15, 2016*

**4grade math**

Hmmm, are there any multiple choice answers for this question or is it an essay question?

*February 15, 2016*

**Science**

Seriously, all you have to say is "Nope"? No explanation or anything to help me? I am so sick of this and the fact that it took someone 5 hours and 20 minutes to answer my questions is freaking messed up! But, luckily I got a 17/19 and my essay questions need to be ...

*February 15, 2016*

**Science**

When are tides in earth's oceans the highest? A. during the moon's waning gibbous phase. B. during the moon's waxing gibbous phase C. when the moon is at a right angle to the sun*** D. when the sun, Earth, and moon are in line

*February 15, 2016*

**Georgia state history**

Clark you are not dumb. People make mistakes, lol. I agree that it's B

*February 15, 2016*

**Math look for patterns **

Marvin counts six $5 bills. Write each value that he counts. What patterns do you see in the ones digits of the values he counts?

*February 10, 2016*

**Language arts .**

Yea, I chose "The Maze runner for mine. Choose something that excites you or really gets you interested.

*February 9, 2016*

**Language Arts**

Thank you

*February 9, 2016*

**Language Arts**

What is the main message of the words that the Statue of Liberty speaks in "The New Colossus" by Emma Lazarus? Key: *** is my answer A. I am a tired, old woman, but I am still strong. B. Welcome to needy immigrants in search of a new home.*** C. America is a beacon ...

*February 9, 2016*

**History **

What are the various philosophies on the growth of organizations during the late 19th century? with utilization of workers and farmers

*February 7, 2016*

**math**

at a local sports event students paid $3.00 each and non students paid $5.00. There were 120 more students at the event than non students. if the total receipts were 2960 how many tickets of each were sold?

*February 6, 2016*

**Physics**

An airplane flying horizontally 1000 meters above the ground at 200 km per hr drops a bomb on a target on the ground. Determine the acute angle between the vertical and the line joning the airplaod and target at the instant when the bomb is released.

*January 26, 2016*

**5th grade math**

Which digit is 1/100 of the value of the underline digit in 45,258 (4 is underline)? I think it is 40thousand

*January 22, 2016*

**5th grade math**

The value of technology digit 9 in 794,256 is__________ times the value of 9 in 12,276,459. (Think it is : 90,000×12,276,459) Is this right I tried multiplying I get crazy numbers though

*January 22, 2016*

**Math**

What numberhas a place value of 3 that is 100 times the place value of 3 in 12,583? Circle all the answers that apply : 2,385 or 3, 257 or 13,548328 or 7, 385 . (I think it's 7, 385 because it moves forward I'm not understand correctly the question)

*January 22, 2016*

**Math**

1.Celeste ran 2 1/4 mile on Tuesday and 1 1/2 mile on thursday. How many mIles did she run in all. ( I think it's adding the fractions? ) 2. Mr.Sam took 5/8 of a box of snaks and shared with 4 students.what fraction of the box of snake was shared by the students. ( is it ...

*January 22, 2016*

**walden university**

B

*January 9, 2016*

**geography**

true or false:One of the largest migrations in the Middle East took place over 2000 years ago when the Jews were forced out of Palestine by the Romans.

*January 3, 2016*

**geography**

is it 1%?

*January 3, 2016*

**geography**

it says this About 1% About 5% About 10% About 20%

*January 3, 2016*

**geography **

The countries of the Middle East and North Africa make up about 5% of the world’s population. Approximately how much of the global water resources do they control?

*January 3, 2016*

**Math**

The temperature in the morning was -23.9 degrees farenight. It rose 30.3 degrees by noon and dropped 7.5 degrees by evening. What were the noon and evening tempertures ?

*January 2, 2016*

**math**

x=.

*January 1, 2016*

**math**

5x+3=7

*January 1, 2016*

**math**

Molly drove a total of 390 miles to get to her destination in the mountains. She stopped twice, getting 14 gallons of gas and snacks, spending $34 at the first stop and $28 at the second stop. In the mountains, she drove 164 miles visiting scenic places. Before she returned ...

*December 28, 2015*

**Chemistry**

Analysis of a sample of an organic compound showed it contains 39.9%carbon,6.9%hydrogen and 53.2%oxygen. a)calculate the empirical formula b)if the relative molecular mass is 60,what is the molecular formula of the compound.(C=12,H=1,O=16)

*December 19, 2015*

**Chemistry**

An organic compound on analysis gives the following percentage composition of elements present. Carbon 61.85%,hydrogen 10.50% and oxygen 27.65%.determine the empirical formula of the compound.(C=12,H=1,O=16)

*December 19, 2015*

**Math**

Thank you so much! You're a big help! :)

*December 18, 2015*

**Math**

Thank you! What about this one? 3x + 4(x-6)-3(x-7) A.4x - 45 B.4x - 3 C.10x - 3 D.10x + 45

*December 18, 2015*

**Math**

I really need help solving this! For questions 6-7, simplify the expression. 6. -6 - 7(c + 10)(1 point) A. 64 - 7c B. -76 - 7c C. 4 - 13c D. -16 - 13c I don't know which to choose, I need help solving this!

*December 18, 2015*

**algebra 1**

The answer is B. I don't remember which unit this was in but I think its B.

*December 18, 2015*

**Spanish**

A Inca

*December 8, 2015*

**Physical Education 1-10**

385 divide by 32 multiplied by 18 can you get the answer

*December 3, 2015*

**ELA**

What are 2 metaphors on freedom? Can some one help ASAP HMU KIK:

*December 2, 2015*

**language **

The point of view most suitable for memoirs is the______________ point of view.

*November 30, 2015*

**Chemistry **

A solution contains 0.50M Nh3 and 1.50 M Nh4cl. What is the maximum concentration of mg2+ that can be present in such a solution without precipitating Mg(oh)2?

*November 17, 2015*

**chem**

i cant believe these arent answered yet. im sorry. 1. 366K 2. 1710 mL 3. 26.2 thats what i have so far

*November 17, 2015*

**chemistry**

1. How many grams of calcium chloride (CaCl2) are there in 600.0 mL of an aqueous solution that has a concentration of 0.450 M CaCl2? 2. The conjugate base of HS- is: 3. What mass of calcium chloride, CaCl2, is needed to prepare 3.65 L of a 1.75 M solution? The molar mass of ...

*November 12, 2015*

**chem**

i dont know which numbers to plug in where. this is what i was given in my intro to chem class and i am totally lost.

*November 12, 2015*

**chem**

The molar mass of hydrogen fluoride, HF, is 20.0 g/mol. If 17.0 grams of HF are dissolved in water to give 200.0 mL of solution, what is the molarity of this solution?

*November 12, 2015*

**chemistry**

is it 1.13

*November 12, 2015*

**chemistry**

can anyone help with this problem please..... Potassium chlorate decomposes according to the following equation: 2KClO3 (s) → 2KCl (s) + 3O2 (g). If a 3.00 g sample of KClO3 is decomposed and the oxygen is collected at 24.0 °C and 0.991 atm, what volume of oxygen gas...

*November 12, 2015*

**math**

what are your options?

*November 12, 2015*

**Language arts.**

Don't you think ppl need help why are you fooling around @jazmine

*November 12, 2015*

**math**

Sally says any two segment on her fifths strip are the same as 2/5.do you agree with her

*November 1, 2015*

**English**

Need help with a thesis. Hamlet who is young and emotionally unstable should not attempt to avenge his father's death based on what a ghost has to say. Is this good? - the question is "Something is rotten in the state of Demmark" Develop Thesis based from the ...

*October 22, 2015*

**college writting two**

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

*October 20, 2015*

**physics help**

The distance between the midponts of two metal balls.P and Q,respectively of masses 55 kg and 70 kg is 80 cm calculate the gravitational force that P exerts on Q answer F=Gm1m2/r^2 F=(6,67x10^-11)(55kg)(70kg)/(80cm) F=4.01x10^-11..... Is it correct is correct (b)give only the ...

*October 11, 2015*

**Physics**

A 61 - kg ice skater coasts with no effort for 61 m until she stops. If the coefficient of kinetic friction between her skates and the ice is μk=0.10, how fast was she moving at the start of her coast?

*October 6, 2015*

**English**

The answer is "Give him an alibi in court"

*October 5, 2015*

**physics**

a rocket launched off a cliff is represented by the equation h(t)= -16t^2+100t+140. when will this rocket reach 200 feet? I tried to factor it, i'm confused.

*October 4, 2015*

**Language arts**

Thanks

*October 1, 2015*

**Language Arts**

Really a little more respect ur a teacher

*September 30, 2015*

**Language Arts**

Really a little more respect our a teacher

*September 30, 2015*

**Algebra**

Simplify the expression. Assume that all variables represent positive numbers. Write your answer without using negative exponents. (343x^-6y/8y^-8x^6)^-2/3

*September 21, 2015*

**thesis help**

Need help finding thesis When Bullying Turns Deadly: Can It Be Stopped? In the past four weeks, four teenagers killed themselves after being harassed by schoolmates. Technology is quickly changing how kids bully one another. Here are some ways to stop the problem. I think the ...

*September 15, 2015*

**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?

*September 15, 2015*

**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?

*September 15, 2015*

**thesis**

Where is the thesis in this please help Bullies can be anywhere, but there's no place they show up more than in schools, and no time more than in September. Once the academic year starts, the complicated social hierarchy of a campus — popular kids, nerdy kids, ADHD ...

*September 15, 2015*

**Statistics**

sorry. its 62.8 for the mean

*September 10, 2015*

**Statistics**

The distribution of heights of women aged 20 to 29 is approximately normal with a mean of 2.8 inches and standard deviation of 2.8 inches. The height (+/- 0.1 inch) of the middle 99.7% falls between a low of ?? inches and a high of ?? inches. Please help on how I set this up ...

*September 10, 2015*

**history**

what motivated the founding father to use the "we the people" in the preamble of the U.S. constitution "

*September 3, 2015*

**Community psychology **

Can some on think of a public meeting with board of directors that are like involved for a community I need to like a website do to need to write down the public meeting .

*September 3, 2015*

**english **

Revise the following paragraph, improving it without changing its overall meaning. Pay particular attention to the sentence structure and parts of speech. Imagine a time when there was only one little store. To shop in for a whole town. The only selection there was to choose ...

*August 30, 2015*

**Math**

Right

*August 5, 2015*

**Math**

So it is a

*August 5, 2015*

**Chemistry**

The formula for magnesium carbonate is MgCO3. What is the charge of the cation in Ag2CO3? Would it be +1 or +2 because there are two of Ag?

*July 29, 2015*

**Living Waters private school**

Can I choose Human resource or safety officer when am doing maths literacy, economic,business and tourism

*July 29, 2015*

**Life orientation**

The media do not tell us what to think.they tell us what to think about.how is this so.by using three forms of media

*July 21, 2015*

**Algebra**

I seriously need help on this math problem. I have tried to work it out myself but the answer is not coming out right. Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -8x2 + 3x + 7.

*July 8, 2015*

**MATH**

if alpha and beta are zeroes of the polynomial x2-5x+6,then find the polynomial whose zeroes are root 3 and -root 3

*July 4, 2015*