Monday

September 22, 2014

September 22, 2014

Total # Posts: 160

**Chemistry**

What is the molarity of HCL if it takes 16.5 mL of 0.100 M NaOH to titrate 10.0 mL of HCl? HCl + NaOH -> H2O + NaCl molarity = moles of solute/liters of solution
*September 18, 2014*

**AP Calculus**

Find an equation of all tangent lines for the curve x^2-xy+y^2=16 x=-2 2x-(xy'+y(1))+2yy'=0 2x-xy'+y+2yy'=0 y'(-x+2y)=-2x-y y'=-2x-y/-x+2y y'=-2(0)-y/-(0)+2y y'=-y/2y Not sure what to do now?
*September 14, 2014*

**Operating Systems**

Given that main memory is composed of only three page frames for public use and that a seven-page program (with Pages a, b, c, d, e, f, g) that requests pages in the following order: a, c, a, b, a, d, a, c, b, d, e, f. Using the FIFO page removal algorithm, indicate the ...
*September 4, 2014*

**physics**

To estimate how high the cliff is you throw a rock off the edge and 7.8 s later you hear the rock hit the ground. The speed of sound is 330 m/s. Ignoring air resistance how high is the cliff?
*September 1, 2014*

**Math**

That helped a lot Steve. Thank you.
*June 11, 2014*

**Math**

The president of Texas state University makes three times as much money as one of the department heads. If the total of their salaries is 290,000, find each worker's salary.
*June 11, 2014*

**Algebra**

thanx damon :D
*June 2, 2014*

**Algebra**

Simplify: b. 4√10-√10
*June 2, 2014*

**Algebra**

thank you peeps
*June 2, 2014*

**Algebra**

What are the solutions to the system? (Hint: graphing is the easiest!) y = x2 + 2x - 45 y = -3x + 5
*June 2, 2014*

**math for me!!!!!!**

cross multiply
*June 2, 2014*

**Algebra**

lol damon answers all my question soooo thanx very much XD
*June 2, 2014*

**Algebra**

Use the Zero Product Property to solve the equation: -3m(2m – 5) = 0
*June 2, 2014*

**Algebra**

thanx both of yall XD
*June 2, 2014*

**Algebra**

A ball is thrown into the air. The height in feet of the ball can be modeled by the equation h = -16t2 + 20t + 6 where t is the time in seconds, the ball is in the air. When will the ball hit the ground? How high will the ball go?
*June 2, 2014*

**Chem**

What will the products be for Ni(s) + 2Na^+(aq)? I don't think this is even possible, so will this reaction even be possible?
*March 2, 2014*

**Chem**

What is the product for the reaction of Ni(s) + 2Na^+(aq)? I don't think this is possible no?
*March 2, 2014*

**Chemistry**

3) A student mistakenly uses the cuvette containing the most dilute standard solution, rather than the cuvette containing deionized water, as the blank solution. I don't understand why there would be lower concentration of Cr(VI) ion...
*March 2, 2014*

**Algebra 1b!**

1. Find the excluded value of x for the polynomomial expression 4x/6 a. 6 b. -6 c. 1/6 d. -1/6 2. Simplifly 3-2x/7 + 4x+5/7 a. 2x+8/14 b. 2x+8/7 <--- c. x+1/7 d. 2x+2/7 3. Simplify 6ab^6/4a^7b^10 * a^3b^4/2a^7b^6 a. 7x/8 - 2x/8 b. -5x/8 c. 3a^2b^3/4a^7b^8 d. a^2b^5/2a^7b^8...
*December 9, 2013*

**Earth space science, check answers?**

A. 75 % B. 12.5% C. 25% D. 3.13% E. 9.38% 3. what percentage of land on the earths surface is inhospital lands? - B 4. what percentage of earths surface is covered by land? - C 5. what percentage of land on earth is usable, for living on, but not for agriculture/farming?-D 6. ...
*November 15, 2013*

**Check my answers?**

Earth space science.
*November 15, 2013*

**Check my answers?**

A. 75 % B. 12.5% C. 25% D. 3.13% E. 9.38% 3. what percentage of land on the earths surface is inhospital lands? - B 4. what percentage of earths surface is covered by land? - C 5. what percentage of land on earth is usable, for living on, but not for agriculture/farming?-D 6. ...
*November 15, 2013*

**Earth space science**

Well lets say For city A; 57. 156. 53 b;61. 135. 56 c; 58,136. 11 d; 67.65.198
*November 14, 2013*

**Earth space science**

I need help with this. the map doesnt show anything and idk how to post the map on here... Match the cities A,B,C, and D with the weather description of the surface model (To the right of each letter) a. city A b. City B c. City C d. City D A. Pressure of 1015.1 and south east...
*November 14, 2013*

**Algebra 1b!**

Could you guys check my answers? 1. Graph the function and identify the domaine and range. y=-1.5^2 Domain; (-,+) Range; (-,0) ( my answers.) 2.How is the graph of y=-2x^2-5 different from the graph of y=-2x^2 It is shifted units up it is shifted 5 units down <--- It is ...
*November 8, 2013*

**English!**

This is what i got so far but i need help with an opening paragraph and conclusion Mark twain used huck as narrator to see the innocent view of these difficult adult themes. in the eyes of a child, the morality of the situations he finds are much more concerning than most ...
*November 7, 2013*

**English**

For english i'm doing facts about mark twain and if i put " Around all of the facts, is it still plagiarism?
*November 7, 2013*

**Huckleberry Finn**

And i know, i just need all the notes before i write.
*November 7, 2013*

**Huckleberry Finn**

For the third; Tom sawyer and Huckleberry Finn both loved going on adventures,where it was pretend and really loyal to friends.. Tom was more imaginative but in some ways the less kind hearted of the two. Write about one of the authors we have studied. ANd last In 1846, when ...
*November 7, 2013*

**Huckleberry Finn**

Well for the first 2 i got answers. But this is an expository essay rough draft and we choose a short story and write about it with these questions. First one my answer is; He used huck as narrator to see the innocent view of these convulted adult themes. in the eyes of a ...
*November 7, 2013*

**Huckleberry Finn**

Explain how the author created the character (characterization). Explain the theme of a piece of literature. Compare and contrast two pieces of literature. Write about one of the authors we have studied.
*November 7, 2013*

**Math**

42000 and 48000 44286
*September 25, 2013*

**physical science **

I am having a little trouble with this problem. can someone please HELP! During a race, a runner runs at a speed of 6m/s. 2 seconds later, she is running at a speed of 10 m/s what is the runner's acceleration?
*August 7, 2013*

**math**

How would I solve this; John is paid at an hourly rate of $15 and over time rate of 1.5 times his hourly rate. If john puts in w regular hours and y overtime hours in a week, what is his total wage for the week? (Monday-Friday
*July 1, 2013*

**math**

1/2 + (-5/6) =?
*June 28, 2013*

**physical education**

*sure
*May 31, 2013*

**physical education**

What nutritional supplement is recommended for helping the body handle stress? A. Zinc B. Iron C. Vitamin C D. No supplements are recommended for stress management I think its a but im not sue please help
*May 31, 2013*

**english **

Which of the following is not a correct option for writing out the date in question? A. 25 January 2000 B. January 25, 2000 C. 2000, January 25 D. 01/25/00 I think this one D
*May 2, 2013*

**english**

Regarding the use of commas, which one of the following statements is accurate? A. A parenthetical use of commas is usually confusing to the reader. B. There is no need for commas that indicate added details in a sentence. C. Commas are needed to separate a list of three or ...
*May 2, 2013*

**englis**

8. Which of the following options accurately represents the steps involved in the writing process? A. Write first draft, edit, revise, write final draft B. Write first draft, revise, proofread, write final draft C. Plan, write first draft, edit, write final draft D. Plan, ...
*May 1, 2013*

**english**

3. Which one of the following sentences best describes paraphrasing? A. Janette listened to the speaker and took notes. B. Janette listened to the speaker, asked questions, and wrote a report. C. Oscar studied Dr. Frost's article and summarized it in his own words. D. ...
*May 1, 2013*

**english**

Which group of words is the complete infinitive phrase in the sentence? It is important to avoid harmful exposure to the sun’s direct rays.
*April 3, 2013*

**english**

Which word or phrase is an appositive in the sentence? When Sandy met John—a scientist and critic—she fell in love with him.
*April 3, 2013*

**Social Studies**

Which state is the least densely populated? 1. Alaska 2. Hawaii 3. Minnesota 4. New Jersey My Answer: # 2 Hawaii
*March 19, 2013*

**Math**

Thank You :-D
*March 16, 2013*

**Math**

Hello can somebody answer anybody please :( :( help !!me
*March 16, 2013*

**Math**

Find the surface area of the cone. Use 3.14 for pi 8'' in the bottom and 7'' in the right side
*March 16, 2013*

**Math**

Here is a other 1 is that OK Damon????
*March 16, 2013*

**Math**

OMG, Damon Thank You So Much!!!!! :D
*March 16, 2013*

**Math**

Find the volume of the cylinder. Use 3.14 for (π Pi) 34 m on top and 27 m down on the right. Please Help Me I try and try and nothing please please help me !!!!! :( :(
*March 16, 2013*

**Pre-Algebra**

OK, Thank You So Much For Understanding! :-)
*March 13, 2013*

**Pre-Algebra**

Why nobody wants to help me just check my answer and there if some of the answers are wrong then tell me the right ones !!! !!!!!!!!!!!! :-( :
*March 13, 2013*

**Pre-Algebra**

For numbers 1–3, find the indicated measurement of the figure described. Use 3.14 for (pi) and round to the nearest whole number. 1) Find the surface area of a sphere with a radius of 8 cm. a. 268 cm2 b. 804 cm2 c. 2,144 cm2 d. 201 cm2 2) Find the surface area of a sphere...
*March 13, 2013*

**algebra**

4y^3-4y^2+3-y
*February 24, 2013*

**social studies- check**

thats correct
*December 17, 2012*

**trig**

a ship leaves port with a bearing of S 42deg W after traveling 7 miles, the ship turns 90deg and travels on a bearing of N 52deg W for 10 miles at that time, what is the bearing of the ship to the port?
*October 29, 2012*

**Math**

120
*October 28, 2012*

**Algebra 2**

To rationalize the denominator of 4/(2+√8), Brittany multiplied by (2-√8)/(2-√8) and Justin multiplied by (1-√2)/(1-√2). Explain why both are correct.
*October 22, 2012*

**Chemistry**

What is the temperature change in celsius when 29.5L of water absorbs 2.3 kwh of heat?
*September 26, 2012*

**physics**

What is its speed after 1.87 s if it accelerates uniformly at −4.31 m/s^2? Answer in units of m/s
*September 3, 2012*

**physics**

The initial speed of a body is 2.14 m/s. What is its speed after 1.87 s if it accelerates uniformly at 4.31 m/s^2? Answer in units of m/s
*September 3, 2012*

**physics**

A body moving with uniform acceleration has a velocity of 10.2 cm/s when its x coordinate is 3.73 cm.If its x coordinate 2.33 s later is −2.74 cm,what is the x-component of its acceleration?Answer in units of cm/s^2
*September 3, 2012*

**physics**

What is the average acceleration a between 14 s and 16 s?
*September 3, 2012*

**physics**

What is the average velocity v between 0 s and 6 s?
*September 3, 2012*

**physics**

A certain car is capable of accelerating at a rate of 0.57 m/s^2.How long does it take for this car to go from a speed of 56 mi/h to a speed of 66 mi/h? 1mi/h = 0.447 m/s.Answer in units of s
*September 3, 2012*

**physics**

A vehicle moves in a straight line with an acceleration of 5 km/h^2.By how much does the speed change each second?Answer in units of km/h
*September 3, 2012*

**physics**

Consider the expression 2π times square root of ℓ/g, where ℓ is length and g is gravitational acceleration in units of length divided by time squared.Evaluate its units.
*September 3, 2012*

**physics**

Consider the following set of equations, where s, s0 and r have units of length, t has units of time, v has units of velocity, g and a have units of acceleration. Take k to be dimensionless.Identify if these are dimensionally correct or incorrect. 1)v^2= 2as + kav 2)s = s0 + ...
*September 2, 2012*

**chemistry**

How does a straw work? Using the Kinetic Molecular Theory to explain?
*May 31, 2012*

**Math**

convert 628 kilometers to miles (round off ans to 2 decimal places)
*May 27, 2012*

**social studies**

what was the cause of the american revolution of 1776 the french revolution of 1789and the Russian revolution in 1917
*May 18, 2012*

**physics**

Amy needs 5.0 V for some integrated circuit experiments. She uses a 7.0 V battery and two resistors to make a voltage divider. One resistor is 360 . She decides to make the other resistor smaller. What value should it have?
*April 2, 2012*

**english**

the passage makes it clear that aunt georgiana??
*March 18, 2012*

**physics**

A metal rod is 40.125 cm long at 20 °C and 40.148 cm long at 35 °C. calculate the coefficient of linear expansion of the rod for this temperature range.
*February 22, 2012*

**Trigonometry**

Expressed in simplest form, (n-1/n)/(1+1/n) is equivalent to... 1.)n-1 2.)n+1 3.)n-1/n+1 4.)n
*February 7, 2012*

**Earth Science**

Can you help me find how many hours are received by these degrees of latitude during the winter (see details)? North Pole = 0 hrs of daylight Equator = 12 hrs of daylight South Pole = 24 hrs of daylight 66.5 degrees north = ? 23.5 degrees north = ? 23.5 degrees south = ? 66.5 ...
*February 2, 2012*

**Chemistry**

Could you please prove how the ice doesn't completely melt? Don't you subtract 280,000 J and 250,000 J and get 30,000 J? and then you divide it by 334 J/g and get 105 g? But I don't know what you do next.
*January 29, 2012*

**Chemistry**

An 850 gram chunk of ice at 0 degrees Celsius is dropped into a container holding 1.7 kg of water at an initial temperature of 35 degrees Celsius. Due to the presence of the ice, the temperature of the water eventually drops to 0 degrees Celsius. Show a mathematical solution ...
*January 29, 2012*

**Math**

Find the compound form of v, given the magnitude of ||v||=3 and v in the direction of 3i + 4j.
*January 17, 2012*

**Math**

The coordinates of A and B are (7,-7) and (-2,2) respectively. If P and Q divide the line segment AB into 3 equal parts, find the coordinates of P and Q.
*December 29, 2011*

**physics**

A team of dogs drags a 112 jk sled 2.23 km over a horizontal surface at a constant speed. The coefficient of friction between the sled and the snow is 0.181. The acceleration of gravity is 9.8 m/s. Find the work done by the dogs
*December 12, 2011*

**English**

I am trying to understand my essay question, but need help putting it in simpler terms. Question: How does Selvadurai’s text encourage a critique of normative ideas about gender and/or sexuality?
*November 14, 2011*

**English**

what are some alliterations for wild that describes a tiger?
*October 31, 2011*

**Algebra**

25/42
*September 17, 2011*

**MATH 208**

There were 18,017 AIDS deaths in 2003, or 34.5% of the 1995 AIDS deaths. Determine the number of AIDS deaths in 1995. What formula who I use to solve this problem?
*June 23, 2011*

**math**

jim's 10-foot garage casts a 7-foot shadow. his house has a 17.5-foot shawdow. how tall is his house
*May 23, 2011*

**math**

Math homework help????? please? heres what it says on the paper. Using proportions, you can calculate the dimensions of objects without having to measure them. solve the problems that follow... heres the problem ===================================== amy is 5 feet tall and ...
*May 23, 2011*

**math**

amy is 5 feet tall and casts a 4 foot shadow. the pine tree has an 8 foot shawdow. how tall is the pine tree
*May 23, 2011*

**science**

chemical reaction in cells that needs oxygen to release energy and produce carbon dioxide and water as waste 1)breathing 2)exhaling c)inhaling d)respiration
*May 9, 2011*

**science**

what is the condidtion of earths atmosphere at a particular time and place?
*April 26, 2011*

**MATH**

I IM LONE ABUOT MATH HI BY
*April 9, 2011*

**Chemistry**

Please help me with this question: Calculate the theoretical yield amount of CaCl2 that would be required to change the temp of 50ml of water from room temp 20degree to 45 degrees. Heat Capacity H20 is 4.184 Jg^-1deg^-1 and density is 1g/mL. I've already calculated: Q=mc ...
*March 7, 2011*

**Chemistry**

Please help me with this question: Calculate the theoretical yield amount of CaCl2 that would be required to change the temp of 50ml of water from room temp 20degree to 45 degrees. Heat Capacity H20 is 4.184 Jg^-1deg^-1 and density is 1g/mL. I've already calculated: Q=mc ...
*March 7, 2011*

**SraJMcGin**

Thanks a lot for your previous help with my assignments, and I have Windows. I don't know how to make accent marks:\
*March 1, 2011*

**FRENCH**

Comparez les deux dessins. Puis posez les questions suivantes a votre partenaire. Voire partenaire repond avec ne...jamais.., ne... plus, ne....personne ou ne...rien. Suivez le modele. There are pictures. One for 13h00 and one for 23h00. In the 13h00 one, there are students at...
*February 28, 2011*

**FRENCH**

I have a bit of information on Negative articles in french and stuff. Like I know there is Ne+ Pas Ne...Plus Ne...Rien Ne...Jamais Ne...Que Ne....Personne Ne Pas means: not, don't etc--a lot for this Ne plus means: not anymore, no more Ne Rien means: Nothing, anything Ne ...
*February 28, 2011*

**FRENCH**

Comparez les deux dessins. Puis posez les questions suivantes a votre partenaire. Voire partenaire repond avec ne...jamais.., ne... plus, ne....personne ou ne...rien. Suivez le modele. There are pictures. One for 13h00 and one for 23h00. In the 13h00 one, there are students at...
*February 28, 2011*

**math**

Is each ordered pair a slotuion of the given system? write yes or no. 1. y=6x+12 2x-y=4 (-4,-12)______
*January 31, 2011*