Monday

March 30, 2015

March 30, 2015

Total # Posts: 151

**Chemistry**

Zn(OH)2 was saturated in a solution of sodium hydroxide. The following equilibra exist under these conditions Zn(OH)2 -> Zn2+ +2OH- Ksp Zn2+ +OH- -> Zn(OH)+ K1 Zn(OH)- + OH- -> Zn(OH)2 K2 Zn(OH)2 + OH- -> Zn(OH)3- K3 Zn(OH)3- +OH- -> Zn(OH)42- K4 a) Sum of which...
*March 24, 2015*

**Math**

A garden is edged with landscaping tiles that are 9.2 cm wide. The length of the garden is 6.2 m and the width of the garden is 5.6 m. What is the perimeter of the garden inside the landscaping tiles, to the nearest tenth of a meter?
*March 18, 2015*

**Math**

The cash in the school canteen contains x quarters and (30-x) dimes. If the total value of the coins is $5.85, how many of each kind of coins are there?
*March 17, 2015*

**Math**

A square piece of paper is folded in half to make a rectangle. The perimeter of the rectangle is 24.9 cm. What is the side length of the square piece of paper?
*February 19, 2015*

**math - ans.check**

I don't get the step!
*February 17, 2015*

**math - ans.check**

Given function G(x)=-7/8(45-x), find x to nearest tenth, when G(x)=15 ____________________________________ I'm stuck on this question,i tries on my own but i couldn't get it right, plz help! 15=-7/8(45-x) -8/7(15)=45-x (-17.1428..)=45-x -> stuck at this step. Thank ...
*February 17, 2015*

**9th Grade Math**

Naulluq is cutting ice blocks from the lake for her mothers drinking water tank. The cylindrical tank has a volume of 4x^2π. Once each block has melted, it will have a volume of 3x^2. How many blocks does she need to cut so that her mothers tank will be filled when the ...
*February 10, 2015*

**Math**

A full bottle of juice costs $2.00.If the cost of the juice is $1.50 more than the cost of the bottle, how much does the empty bottle cost? Hint: Answer is not 50 cents
*December 12, 2014*

**Math**

How do you find the GCF from 55 + 22 = and rewrite the sum using the Distributive Property?
*September 3, 2014*

**Algebra 2**

By the way, I am in 7th grade and moved up so that's why I am in Alg.2
*August 24, 2014*

**Algebra 2**

Help. This is straight up confusing. You buy one shirt for $8 and Y hats for $4 each. You spend $16 how many hats can you buy?
*August 24, 2014*

**math**

The volume of cube I is 331 m^3 less than the volume of cube II. If an edge of cube I is 10 meters, an edge of cube II is A. 14 meters B. 13 meters C. 12 meters D. 11 meters
*August 15, 2014*

**chemisty**

Consider the following unbalanced equation between copper(I) ions and iron to produce copper metal and iron(II) ions: Cu+ + Fe → Cu + Fe2+ What is oxidized in this reaction? A) copper(I) ion B) iron C) copper D) iron(II) ion
*June 6, 2014*

**algebra**

(2/3)X-4Y=8 -4X+24Y=32 FIND THE VALUE OF X
*June 5, 2014*

**Chemistry**

H2 (g) + I2 (g) 2 HI (g) If the initial concentrations of H2 and I2 are 1.0 M and the initial concentration of HI is 0.5 M (Kc = 54.3 at 430oC). (a) Is the reaction at equilibrium? (b) If not, which way will the reaction proceed?
*May 4, 2014*

**physics**

A 750 kg rocket accelerates straight upward from the ground at 60 m/s2. What is the force (thrust) provided by the engine? with a gravitational pull of 10 m/s2 down
*February 3, 2014*

**informal logic**

If an argument does not commit a fallacy, it is
*December 22, 2013*

**physics**

A soccer ball is kicked from the ground with an initial speed of 18.9 m/s at an upward angle of 47.0˚. A player 54.4 m away in the direction of the kick starts running to meet the ball at that instant. What must be his average speed if he is to meet the ball just before ...
*September 23, 2013*

**psy**

Psychologists generally agree that developmental change is characterized by (Points : 1) mostly continuous development. mostly discontinuous development. both continuous and discontinuous development. neither continuous nor discontinuous development.
*September 17, 2013*

**psy**

Information-processing theory sees development as a (Points : 1) gradual increase in abilities like memory. three-step recognition process. stage of formal operations. computer hard drive that needs to be periodically upgraded.
*September 17, 2013*

**psy**

After watching golf on TV several times with her father, 7-year-old Michelle learned how to swing a club even before she actually had one in her hands. What kind of learning took place? (Points : 1) Operant Conditioning Social Learning Classical Conditioning Cognitive Awareness
*September 17, 2013*

**English 12**

I think I want to write about the lack of communication between 90 yr old Hagar (between herself, Marvin, and Doris) and also in her past (with her father, Bram, her 2 sons, specifically her lack of emotion and saying simple things like I love you) telling them how she really ...
*June 4, 2013*

**English 12**

I have to write an essay on a book called "The Stone Angel" by Margaret Lawrence, for anyone that knows the novel there is a clear message about communication, or lack there of, and things on relationships, having issues starting the essay, would appreciate any help ...
*June 4, 2013*

**Physics**

If a vehicle starts at 31 km/h and only travels 4.7m in 1.1 seconds due to deceleration, how fast is it going after 1.1 seconds?
*March 20, 2013*

**math**

marty ate 4/6 of his pizza and luis ate 5/6 of his pizza. marty ate more pizza than luis. how is this possible?
*January 30, 2013*

**chemistry**

Which one is greater in terms of number of atoms Na or S. Which one is greater in terms of mass, a mole of Na atoms or a mole of S atoms.
*October 13, 2012*

**chemistry**

Calculate the number of moles of Cl atoms in 1.81×10e24 formula units of magnesium chloride,MgCl2.
*October 11, 2012*

**Chemistry**

If the initial pressures of the H2 and N2 in the flasks in the figure below were instead 350. torr and 160. torr, respectively, what would be the final pressure after the stopcock is opened? Left side of stopcock= 2.00L H2 Right side of stopcock= 1.00L N2
*October 10, 2012*

**math**

The answer is 79
*September 19, 2012*

**Math**

If a 3/8" drill bit is rotating clockwise at 1300 RPM and the bit shatters, at what speed will the projectile be traveling outward?
*August 1, 2012*

**statistics for behavioral sciences**

In a one- to two-page Microsoft Word document, for each hypothesis listed indicate: Whether the appropriate analysis would be a one-tailed test or a two-tailed test. A type I and type II error, given the context of the hypothesis. Hypothesis: The three treatments tested differ...
*February 21, 2012*

**statistics for behavioral sciences**

In a one- to two-page Microsoft Word document, for each hypothesis listed indicate: Whether the appropriate analysis would be a one-tailed test or a two-tailed test. A type I and type II error, given the context of the hypothesis. Hypothesis: The three treatments tested differ...
*February 21, 2012*

**Math**

But 54 and 16 doesnt equal 92
*February 13, 2012*

**Math**

Total of 92 students in the school band. There are 16 more girls than boys in the band. How many girls are in the band?
*February 13, 2012*

**Geometry**

You are given two segments, AB with AB = 4 and CD with CD = 7. You want to construct a new segment, EF with EF = 1. If you can use only congruent-segments construction, explain how you would use AB and CD to construct EF.
*February 2, 2012*

**physics**

A person wearing a safety belt can withstand an acceleration of -3.0E2 m/s2. How thick should barriers be to safely stop a car that hits a barrier at 97 km/h?
*January 17, 2012*

**Math**

Convert to a scientific notation: 0.000243
*December 24, 2011*

**chemistry**

How many water molecules are in a 0.265 g sample?
*December 20, 2011*

**Agriculture marketing**

How can you use the Futures Market Information for “store or not to store” decision when it comes to grains?
*December 13, 2011*

**Agriculture Econ**

What is the relationship between the price elasticity & the total revenue received by produces of a commodity
*October 31, 2011*

**statistics, find the probability**

When I computed this, it came out very oddly.. The C is throwing me off. cNr?
*October 21, 2011*

**statistics, find the probability**

It is known that 77% of all new products introduced in grocery stores fail (are taken off the market) within 2 years. If a grocery store chain introduces 62 new products, find the following probabilities. (Round your answers to four decimal places.) (d) within 2 years fewer ...
*October 21, 2011*

**statistics**

It is known that 77% of all new products introduced in grocery stores fail (are taken off the market) within 2 years. If a grocery store chain introduces 62 new products, find the following probabilities. (Round your answers to four decimal places.) (d) within 2 years fewer ...
*October 21, 2011*

**math**

what is 1 plus 1
*October 12, 2011*

**math**

change 2.5% to a ratio expression
*August 22, 2011*

**Math**

If the addition of 2,000 joules of heat to 10 kilograms of a substance raises it's temperature 2 degrees,the specific heat of the substance is. a. 0.01j/kg degrees. b. 0.2j/kg degrees. c. 50 j/kg degrees d. 100 j/kg degrees e. 200j j/kg degrees
*August 19, 2011*

**Math**

A satellite moving in a circular orbit with respect to the earth's center experiences a gravitational force. If the satellite is put into a new circular orbit of smaller radius, how will the gravitational force and the speed of the satellite change ,if at all?
*August 19, 2011*

**Math**

Two small conducting spheres are identical except that sphere x has a charge of -10 micro coulombs and sphere y has a charge of + 6 micro coulombs . After the spheres are brought in contact and then separated,what is the charge on each sphere ,in micro coulombs ?
*August 18, 2011*

**Us History**

I need help with this foreign policy thematic essay
*May 25, 2011*

**college algebra**

- 300 represents the fixed cost which rmains the same regardless of x
*May 20, 2011*

**algebra**

A university bookstore recently sold a wirebound graph-paper notebook for $0.88, and a college-ruled notebook for $2.38. At the start of spring semester, a combination of 50 of these notebooks were sold for a total of $59.00. How many of each type were sold?
*May 14, 2011*

**Pre-Calculus**

3091 N
*May 2, 2011*

**Math**

The number 4641 can be expressed as the product of two 2-digit whole numbers. What is the sum of these two numbers?
*May 1, 2011*

**Language arts**

That would correct the sentence but how would you describe this sentence as is?
*April 6, 2011*

**Language arts**

Looking at it as a incomplete sentence but it has an indenpendent clause, the "lots of things to do" is what confuses me.
*April 6, 2011*

**Language arts**

What kind of sentence is: The state park in the rocky mountains is beautiful, lots of things to do.
*April 6, 2011*

**Math**

Is the time you take to go to the library a function of the distance to the library? I think it's not a function
*January 31, 2011*

**Math**

Troy spends the same amount of time playing violin, studying, and walking. For a total of 80 hours, how many minutes does he spend doing each activity?
*January 30, 2011*

**Financing **

Reflect on the code of ethics for professional practice. What is your philosophy of financial planning? How do you see yourself carrying out your philosophy in your professional practice?
*December 6, 2010*

**Transitional Math**

Richard took a loan of $10000 at a rate of 5%. If he paid $2500 in interest, how long did it take him to pay off the loan?
*December 5, 2010*

**collage physics**

a block of wood rest on a plane incline at 35 degrees to the horizontal.if the coefficient of the static friction between the surface is 0.45.determine: a) what is the horizontal force that must be applied to the block to initiate motion up the plane b)the horizontal force ...
*November 30, 2010*

**math**

If the radius and diameter of a sphere were measured in inches, then the surface area would be measured in
*November 21, 2010*

**Financing **

Reflect on your experience with investing. What type of investments do you currently own/manage? What decisions are you responsible for making in regard to management of the investments? At this time, how comfortable are you with advising others on selecting investments? How ...
*October 25, 2010*

**Geometry**

Given: UR=VW Prove: UV=RW(Midpoint) Given: angleABE=angleDBC(Bisectors) Prove: angleABD=angleCBE
*October 12, 2010*

**Reading/novel study**

Page 23
*October 9, 2010*

**Law**

A man was jogging with his puppy along a busy local street, there was house construction happening near by and the jogger stepped on a fairly large piece of concrete (4 by 3 in) which blended into the sidewalk well that was without a doubt from the construction site. He hurt ...
*October 7, 2010*

**Law**

A man was jogging with his puppy along a busy local street, there was house construction happening near by and the jogger stepped on a fairly large piece of concrete (4 by 3 in) which blended into the sidewalk well that was without a doubt from the construction site. He hurt ...
*October 7, 2010*

**Consumer affairs and business**

”.Reflect on how you would work with a client to advise them on the importance of insurance to manage risk. How would you address their reluctance to spend money on premiums when they may never file a claim? Refer to course content in your reflection (If I can get some ...
*October 6, 2010*

**Geometry**

That's what i'm trying to find. I gave the answer choices.
*October 6, 2010*

**Geometry**

If the measures of two complementary angles are in the ratio 1:5, the measure of the larger angle is: A)75 B)144 C)150 D)72
*October 6, 2010*

**math**

In equilateral triangle ABC, AB=3x and BC= 2x=12. Find the numerical value of the perimeter of ABC.
*September 29, 2010*

**math**

Which of the following is a disjunction? Angela is forty-three. Lisa will run a marathon and Lisa will compete in a triathlon. Paul is at school or Paul is at home. A spuare has four sides and four angles.
*September 28, 2010*

**math**

18=6-y Subtract 6 from both sides you get 12=-y since your "y" cannot be negative your going to divide by -1 on both sides. you then have -12=y if you were to check this, this is how it would look 18=6-(-12) 18=6+12 18=18
*June 8, 2010*

**Algebra: please check**

You set it up right. Don't forget your plugging in for x and y and you need to finish this. So your equation would be -2=1/3(1)+b B would be your unknown y-intercept. But this is not in slope-intercept form So now you need to solve for b. -2=1/3(1)+b -2=1/3+b subtract 1/3 ...
*June 8, 2010*

**radicals**

multiply. assume that expressions under radicals are non negative. √x+3 * √x-3
*June 8, 2010*

**The Slave Trade**

Was the slave trade a necessary evil?
*May 26, 2010*

**Music**

What literary devices are in the song "Me Against the World" by Tupac Shakur?
*April 29, 2010*

**Music**

PLEASE HELP ME WITH THIS!!! GIVE ME A WEB LINK OR SOMETHING GOOD!!! what is being stated in the last long stanza (the third one) of the lyric "If I Ruled the World.!!!!"
*April 20, 2010*

**World History**

Was the bubonis plague in the Middle Ages a blessing or curse?
*April 13, 2010*

**Poetry**

How can I explain the first five lines in the poem "Leaning Into The Afternoons" by Pablo Neruda? Leaning into the afternoons, I cast my sad nets towards your oceanic eyes. There, in the highest blaze my solitude lengthens and flames; Its arms turning like a drowning...
*March 23, 2010*

**Poetry**

What is one metaphor and one simile in the poem "Leaning Into The Afternoons" by Pablo Neruda? What do they mean and how do they aid what Neruda is trying to state in the poem? I NEED HELP PLAEASE!!!!!
*March 23, 2010*

**Poetry**

What is one metaphor and one simile in the poem "Leaning Into The Afternoons" by Pablo Neruda? What do they mean and how do they aid what Neruda is trying to state in the poem?
*March 23, 2010*

**Poetry**

How can I explain the first five lines in the poem "Leaning Into The Afternoons" by Pablo Neruda? Leaning into the afternoons, I cast my sad nets towards your oceanic eyes. There, in the highest blaze my solitude lengthens and flames; Its arms turning like a drowning...
*March 23, 2010*

**English**

In Langston Hughes poem "Theme for English B," in the lines 16-26 it says: It's not easy to know what is true for you or me at twenty-two, my age. But I guess I'm what I feel and see and hear, Harlem, I hear you: hear you, hear me--we two--you, me, talk on ...
*March 17, 2010*

**Islam**

How did Islamic civilization spread to encompass such an extensive empire(in the Middle East)? What practices or methods were used to spread Islam? P.S: If Ms.Sue answers this, PLAESE GIVE ME ENOUGH INFORMATION TO WRITE ON A ESSAY, I HELP WITH THIS, PLAESE!!!!!!!! and THANK ...
*March 16, 2010*

**math**

4 times the sum of a and b
*March 10, 2010*

**Poetry**

How does Walt Whitman's poem "I Hear America Singing" relate and differ from Langston Hughes's poem "I,Too." PS: I need enough information to write an essay.PLEASE!!!!!
*March 7, 2010*

**World History**

How are Muslim women similar and different from Christian women?
*March 4, 2010*

**Langston Hughes**

Thanks for the help!!
*March 1, 2010*

**Langston Hughes**

Why does Langston Hughes repeat the line, "I've known rivers," in the Poetry "The Negro Speaks of Rivers." The rivers are the Euphrates, Congo, Nile, and Mississippi river.
*March 1, 2010*

**Langston Hughes**

Explain the use of repetition of the pronoun "I". The poem is "Negro Speaks of Rivers" by Langston Hughes.
*March 1, 2010*

**Langston Hughes**

Why does Langston Hughes repeat the line, "I've known rivers," in the Poetry "The Negro Speaks of Rivers."
*March 1, 2010*

** Langston Hughes**

The poem The Negro Speaks of Rivers by Langston Hughes.
*March 1, 2010*

** Langston Hughes**

Explain the use of repetition of the pronoun "I".
*March 1, 2010*

**English**

3.Why are there so many sexualized images of women of color in the media? 4.Can a man be a feminist? Why or why not?
*February 22, 2010*

**English**

1.What is the meaning of the term "hip hop feminist"? 2.Why are there no female voices in hip hop music today?
*February 22, 2010*

**English**

Why is this quote "All these-the meanness and agony without end, I sitting, look out upon, See, hear, and am silent" ironic?
*January 17, 2010*

**Byzantine Empire**

Did Justinian the Roman Empire as the Byzantine Empire? What is his legacy?
*January 14, 2010*

**math**

What the answer to 4x-7y=10
*January 14, 2010*