Monday

September 26, 2016
Total # Posts: 1,572

**Science**

Thanks :)

*August 19, 2014*

**Science**

Please anyone??

*August 19, 2014*

**Science**

A science teacher was curious to see whether offering money for good grades would increase student peformance on a test. The teacher offered half of the students in the class $5.00 if they got an A on their next test. The other half of the class was not offered any money. What...

*August 19, 2014*

**Math**

A piece of wire 12 m long is cut into 2 pieces. One piece is bent into the shape of an equilateral triangle and the other into a shape of a circle. How should the wire be cut so that the combined area of the two figures is as small as possible?

*August 14, 2014*

**math**

Thank you for your help

*August 8, 2014*

**math**

What line is perpendicular to the line y=2/3x+3?

*August 8, 2014*

**Algebra**

please help me and explain how you got the answer. Solve the equation. y + (–6) = –9 A. –15 B. –3 C. 54 D. 3

*July 29, 2014*

**Algebra**

thank you so much sheenybeany! You really helped me a lot!

*July 29, 2014*

**Algebra**

its y/6 then >10

*July 29, 2014*

**Algebra**

please help me with this question. please explain this question to me and how you got the answer to the question. Solve the inequality. > 10 A. y < –16 B. y > –60 C. y > 4 D. y < –60

*July 29, 2014*

**mat/117**

Simplify the expression 3√5/64

*July 6, 2014*

**mat/117**

Simplify the expression 5/8+√7

*July 6, 2014*

**mat/117**

√2(9-√2)+5√2

*July 6, 2014*

**Math**

What is the unit rate in miles per gallon if 140 miles are traveled on 14 gallons of gas? The unit rate is ____ mi/g.

*June 25, 2014*

**Math**

The length of a rectangle is 5ft longer than twice the width. If the perimeter is 106ft, find the length and the width of the rectangle.

*June 24, 2014*

**English**

Revise each of the following sentences twice, once as a periodic sentence and once as a cumulative sentence. 1.) Obviously not understanding reporters, the politician did not know their names, did not answer their questions, and did not read their stories. (periodic) Because ...

*June 24, 2014*

**Chemistry **

Consider a 9% by mass aqueous ethyl alcohol solution. a.) Calculate the molality of this solution_____m b.) Given that ethyl alcohol is a molecular solute, calculate the freezing point of this solution. ________ degrees Celsius. c.) Consider the boiling point of each solution...

*June 24, 2014*

**Chemistry**

If you have 0.150 M HCl solution available, calculate the volume of HCl(aq) necessary for this reaction. _______ml

*June 24, 2014*

**Chemistry**

calculate the volume of hydrogen produced from .025g of aluminum and sufficient HCl at 21 degrees Celsius and 755 torr according to the following reaction: Al(s) + HCl(aq)--------- AlCl3 (aq) + H2(g) Volume of H2________ml

*June 24, 2014*

**mat/117**

Simplify the expression completely (9-5 4√6)(7- 4√8).

*June 23, 2014*

**History**

Thanks that helped :)

*June 5, 2014*

**History**

I don't know if this one is right or not. I've been stuck on this question for 15 mins and my grade counts on this. 20. “In Flanders Fields” expresses the speaker’s belief that (Points : 5) war and its horrors are wrong and evil. the war is necessary and...

*June 5, 2014*

**Algebra**

A mother wants to invest 8,000 dollars into her child's college fund. She invests a portion of the money into a CD account which earns 4% interest, and the remainder into a savings bond which earns 7% interest. If the total interest earned after one year is $480.00, how ...

*June 1, 2014*

**science**

They aren't real, obviously. They're just trolls, or pedophiles. Seriously.

*May 14, 2014*

**trig**

Find all points of intersection of the polar curves r= 2 + 4cos theta and r= 6cos theta. Please explain in detail.

*May 6, 2014*

**science (weather & climaate**

It B because im in connection and it was right

*May 5, 2014*

**Finance**

THE CASH FLOW STATEMENT One of the quarterly financial information any in public traded company is required to disclose to the SEC and the public. The document provides collective data concerning all cash inflows a company receives from both its ongoing operations and outside ...

*April 28, 2014*

**Math**

Is: n^2-9n+9 a perfect square??

*April 26, 2014*

**Math**

Thank you!

*April 26, 2014*

**Math**

Simplify. 12n^2m^4 ________ 28n^4m^3 thank you!

*April 26, 2014*

**math**

A movie theater ticket booth opens at 10 am. There are four tellers who divide the customers evenly. The tellers have served 16 customers so far this morning. which expression represents the unknown number of customers each teller will serve? Let c represent the additional ...

*April 22, 2014*

**Chemistry**

Given that the structures of cocaine (on the right side of the equation) and its free base ( on the left side) with an H+ : a. Would you expect K for the cocaine to be greater or less than 1.0? Explain. b. Would K for the free base be higher or lower than for cocaine? Explain...

*April 13, 2014*

**CHEMISTRY**

Given that the structures of cocaine (on the right side of the equation) and its free base ( on the left side) with an H+ : a. Would you expect K for the cocaine to be greater or less than 1.0? Explain. b. Would K for the free base be higher or lower than for cocaine? Explain...

*April 13, 2014*

**college algebra**

whats the question?

*April 13, 2014*

**Math**

my keyboard is not that advanced :(

*April 10, 2014*

**Math**

Simplify! 3x^5 over 15x A. x^4 over 5 B. 1/5 C. x^6 over 5 D. x^5 over 5 thank you!

*April 10, 2014*

**Math**

simplify! r^2s^5t^4 over (like a fraction) r^2s^2t^5 A. S^3 over t^2 B. S^3 over t C. S^2 over t^3 D. S over t ** a letter with -- ^ means to that power** thank you!

*April 10, 2014*

**BIOLOGY**

how would i find the osmotic pressure of something from "0.9% NaCl solution and MW is 58 grams" .. ? is there a formula or some sort i am missing? if so can you tell me what that is cause i have several problems like these that i don't know how to solve

*April 8, 2014*

**Biology**

how would i find the osmotic pressure of something from "0.9% NaCl solution and MW is 58 grams" .. ? is there a formula or some sort i am missing? if so can you tell me what that is cause i have several problems like these that i don't know how to solve

*April 8, 2014*

**MATH**

Which expression is a polynomial???? A: 11 0ver the square root of x B: square root of 11 times x C: x - square root 11 D: 11 over the square root of x to the 2nd power (sorry I am not sure how to insert square root symbols or fractions, so u have to imaging its there) thank ...

*April 6, 2014*

**CHEM ABSTRACT**

ok thank you!

*April 4, 2014*

**CHEM ABSTRACT**

thank you! quick question, the link you provided mentioned to keep the methods section of the abstrast to about 2 sentences, but i had to do 6 experiments for it, do i have to fit all 6 different methods in the two sentences or would it be more like one sentence for each of ...

*April 4, 2014*

**CHEM ABSTRACT**

I need to write an abstract for my chemistry lab for identifying an unknown acid, is there a generic list of what to do for an abstract? because mine are always to long

*April 4, 2014*

**college physics**

mass of ball x velocity/ mass of ball +mass of performer

*March 24, 2014*

**college physics**

1.07

*March 24, 2014*

**Chemistry**

This compound is mescaline, a hallucinogen. Which of the following statements is true? Mescaline is an amine. Mescaline contains an alcohol group. Mescaline is a carboxylic acid. Mescaline is an amine and contains an alcohol group.

*March 18, 2014*

**chemistry**

Sometimes the basicity of a solution is reported using pOH (pOH = -log[OH-]). What is the a. [OH-] if pOH = 1.90 b. [H3O+] if pOH = 12.94 c. pH if pOH = 9.70

*March 18, 2014*

**chemistry**

It requires 23.2 mL of 0.250 M KOH to titrate 49.0 mL of an HCl solution of unknown concentration. Calculate the initial HCl concentration.

*March 18, 2014*

**Chemistry**

It is commonly known that freshly cut fruits turn a brownish color when exposed to the air for a number of minutes. This is due to the action of the enzyme polyphenoloxidase. It is also well known that the formation of the brown color can be prevented or slowed by chilling the...

*March 18, 2014*

**Chem**

a)Pv=nRT 1mol(.0821)(288.15)/1atm=23.7L 1mol(.0821)(303.15).1atm=24.9L b)E=3/2nRT 1mol(8.314R)(303.15-288.15)=187J

*March 17, 2014*

**Chem**

A balloonist is preparing to make a trip in a helium-filled balloon. The trip begins in early morning at a temperature of 15 degrees C. By midafternoon, the temperature has increased to 30. degrees C. Assuming the pressure remains constant at 1.00atm, for each mole of helium, ...

*March 17, 2014*

**Chemistry**

Express the concentration of a commercial hydrogen peroxide solution, which is 3.0 (w/w), as a molarity. Show all work

*March 13, 2014*

**math**

If X varies inversely with Y and X=8 when Y= 10, find Y when X=6 Answer choices are A: y= 3/20 B: y= 4.8 C: y= 7.5 D: y= 40/3

*March 11, 2014*

**Science Help PLEASE!!**

tysm

*March 11, 2014*

**Math**

How do you find the coordinates to graph y=x2+2x-3

*March 5, 2014*

**social studies**

we are working on ancient egypt and i cant find the answer to In what ways were the reigns of Akhenaton and Ramses II different

*March 5, 2014*

**algebra**

A math tutoring service opened for their first year open, it had 5 students. If 3 new students enroll each year, which of the following equations represents how many students will be enrolled in x years? answer choices: A: y = 5x - 3 B: y = 5x + 3 C: y = 3x + 5 D: y = 3x - 5

*March 1, 2014*

**accounting**

Uncollectible Accounts—Percentage of Sales Ryan's Express has total credit sales for the year of $178,000 and estimates that 3% of its credit sales will be uncollectible. Record the end-of-period adjusting entry on December 31, in general journal form, for the ...

*March 1, 2014*

**math(algebra)**

A small college opened in 1999. In the linear model below, x represents the number of years after 1999, and y represents the student population. Interpret the slope. y = 576 + 173x Answer choices are::: A: An additional year of the college being open is associated with an ...

*February 28, 2014*

**MATH**

SIMPLIFY. 4 TO THE 4TH POWER TIMES 4 TO THE 2ND POWER.

*February 28, 2014*

**accounting**

A light truck is purchased on January 1 at a cost of $27,000. It is expected to serve for eight years and have a salvage value of $3,000. Calculate the depreciation expense for the first and third years of the truck's life using the following methods. If required, round ...

*February 28, 2014*

**accounting**

Based on the financial statements for Jackson Enterprises (income statement, statement of owner's equity, and balance sheet) shown below, prepare the following financial ratios. All sales are credit sales. The Accounts Receivable balance on January 1, 20--, was $21,600. ...

*February 28, 2014*

**SCIENCE**

Wow. Helpful.

*February 27, 2014*

**Physics.**

From greatest to least, rank the accelerations of the boxes. C. <-5N--|3kg|--16N-> B. <-8N--|4kg|--16N-> A. <-4N--|5kg|--8N--> D. <-2N--|20kg|--20->

*February 21, 2014*

**West Chester University**

Physics.

*February 21, 2014*

**West Chester University**

From greatest to least, rank the accelerations of the boxes. C. <-5N--|3kg|--16N-> B. <-8N--|4kg|--16N-> A. <-4N--|5kg|--8N--> D. <-2N--|20kg|--20->

*February 21, 2014*

**history**

My next guess is A. Would that be correct?

*February 20, 2014*

**world history**

Which technologies have been pivotal in the development of the Information Age? To what extent did the industrial revolution create the foundation for modern technologies?

*February 17, 2014*

**Math**

Kayla had 441 stamps.She lost 3/7 of them. How many stamps did she have left?

*February 13, 2014*

**Calculus 3**

Find the center of the ellipsoid x^2+4y+2z^2+2x-4y+z = 20 I'm having trouble factoring to get the center points. Can someone please help. This is where I'm stuck. (x^2+2x+1)+4(y^2-y+1/4)+2(x^2+1/2z+1/16)=20+1+1+1/8 (x+1)^2+ Now I don't know how to get the y and z ...

*February 7, 2014*

**Chemistry**

what if you were mixing two different solutions? such as .9% of the NaCl solution and a 5% dextrose solution? would you just find the moles of both like the above and add them together? then divide all of it by the L?

*February 6, 2014*

**Chemistry**

I'm doing something wrong with osmolarity. I have 100 ml of .9% NaCl. So what i did was take the MW (58.44) and divided it by the .9 because it should be grams, then divided that number by .1 (for the liters) but its coming out with a huge number and its not supposed to. I...

*February 6, 2014*

**Chemistry**

Aspirin, C9H8O4 , is produced through the following reaction of salicylic acid, C7H6O3, and acetic anhydride, C4H6O3: C7H6O3(s) + C4H6O3(l) ---> C9H8O4(s) + HC2H3O2(l) A. What mass of aspirin (kg) could be produced from 75.0 mol of salicylic acid? B. What mass of acetic ...

*February 5, 2014*

**math**

Taylor is correct and I'm in 8th grade!! THANKS!

*February 3, 2014*

**Chemistry**

If you total sample mass was 1.50 g, and you determined that 0.95 g were KHCO3, what was the percent mass off the KHCO3 in the sample?

*February 2, 2014*

**history help plzzzzzz**

Dude. You should not be asking for answers period. She's probably fed up with kiids like you, asking for help instead of doing it your self, do the assignment on your own.

*January 29, 2014*

**music**

I'm scared she might get mad so I need someones opinion should i pick him or another rock star?

*January 28, 2014*

**music**

Ok thanks but someone told me he worshipped satan so do u think my teacher would get mad?

*January 28, 2014*

**music**

In class I have to write a report on a music star so I chose marylin manson can someone tell me about him?

*January 28, 2014*

**Science**

Which of the following is disadvantage of internal fertilization? A. Gametes are released into the surroundings. B. Gametes may get washed away. C. The developing zygote is protected. D. Larger numbers of eggs can be fertilized at one time

*January 28, 2014*

**Science**

Ok i hope I'm not being rude by saying this but why do u think that because I think the answer is C so I wanna compare our reasons XD

*January 28, 2014*

**Science**

Which of the following is disadvantage of internal fertilization? A. Gametes are released into the surroundings. B. Gametes may get washed away. C. The developing zygote is protected. D. Larger numbers of eggs can be fertilized at one time.

*January 28, 2014*

**Science**

Ok I have one more question and it is the same as this one but instead of external its internal? And the answers are the same as well like the question.

*January 28, 2014*

**Science**

I think B.

*January 28, 2014*

**Science**

Which of the following is disadvantage of external fertilization? A. Gametes are released into the surroundings. B. Gametes may get washed away. C. The developing zygote is protected. D. Larger numbers of eggs can be fertilized at one time.

*January 28, 2014*

**Science**

Thanks I have another questions to :)

*January 28, 2014*

**Science**

A male peacock displays his colorful tail in order to...... A. increase the success rate of asexual reproduction B. increase the gestation period. C. release gametes into his surroundings D. attract a mate

*January 28, 2014*

**Science**

A male peacock displays his colorful tail in order to...... A. increase the success rate of asexual reproduction B. increase the gestation period. C. release gametes into his surroundings D. attract a mate

*January 28, 2014*

**Science**

I have another questions in science if someone is willing to help me

*January 28, 2014*

**Science**

Ok sorry

*January 28, 2014*

**Science**

Please help me!

*January 28, 2014*

**Science**

Seahorses change color and swim together in predetermined ways before mating. The behaviors are called....... A.asexual reproduction. B. sexual reproduction. C. courtship rituals. D. budding.

*January 28, 2014*

**Physical Science**

Can someone help me =.=

*January 22, 2014*

**Physical Science**

1) Carbon dioxide is obtain from the air and changed into carbohydrates oxygen during the process of fossilization. respiration. digestion. photosynthesis. 2) Which sequence of processes must occur for an atom of carbon to go from car to tree? respiration, decomposition. ...

*January 22, 2014*

**Intro to Computers**

A :D

*January 13, 2014*

**math**

2 ones, 48 tenths and 5 hundreds =

*January 8, 2014*

**please help me!! with this science!!!!!**

i need help with 19 20 21

*January 7, 2014*

**LAW**

The first one is D. All of the above.

*December 27, 2013*

**math**

quadrilateral RSTU has vertices R(-6,-3), S(3,3), and T(4,-1). what are the coordinates of vertex U if RSTU is a parallelogram?

*December 25, 2013*

**Math**

A client comes to you for investment advice on his $500,000 winnings from the lottery. He has been offered the following options by three different financial institutions and requests assistance to help understand which option would be the best for his investment. •...

*December 23, 2013*