Friday

April 29, 2016
Total # Posts: 297

**chemistry**

When performing a titration, 23.65 mL of 1.25 M calcium carbonste was used to neutralize 9.68 mL of HCl. What is the concentration of the HCl solution? (Create a balanced equation first)
*June 3, 2011*

**chemistry**

what is the new concentration of a NaOH solution that was made from 75 mL of a 5.5 M NaOH solution and diluted it to 250 mL?
*June 2, 2011*

**algebra**

on three consecutive passes, a football team gains 7 yards, loses 38 yards, and gains 19 yards. What number represents the total net yardage?
*May 15, 2011*

**science**

What would happen if the temperature in the Tundra drops 20 degrees farenheit?
*May 2, 2011*

**Chemistry 106**

How would you prepare 1.00 liter of a 0.18 M solution of NaOh?
*April 11, 2011*

**math**

So, is it 2,500 or, 1500??im confused?
*April 7, 2011*

**math**

a=c divided by7 b=a multiple of 5 less than 20 c= b divided by 6 d= a x c a = b= c= d=
*March 19, 2011*

**quadrilateral and angle sums**

what is the measure of a square convex to the nearest degree?
*February 20, 2011*

**Math**

A commercial airplane has a takeoff speed of about 300 km/h. What si the takeoff speed in mi/h?
*January 17, 2011*

**Drug Information Sources**

18 is d
*December 22, 2010*

**Math**

segment yw is perpendicular to segment xz. the perimeter of triangle xyz is 71 meters. what is the length of segment wz
*December 16, 2010*

**Math**

28, 33, 38
*December 16, 2010*

**math fractions**

how do you put 7/16, 5/8, and 3/4 in order from greatest to least
*December 15, 2010*

**5th grade math**

7/16 5/8 3/4
*December 14, 2010*

**College Algebra**

awesome thanks!
*November 22, 2010*

**College Algebra**

For a test question, a mathematics teacher wants to find two constants a and b such that the test item "Simplify a(x + 2y) − b(2x − y)" will have an answer of -4x + 12y. What constants a and b should the teacher use?
*November 22, 2010*

**ALGEBRA/ PLEASE HELP**

You're right on the first one, but the slope on the second would be 1/5 because 5-0 is 5, not zero. If you come across a slope with the denominator of zero though, it will be undefined.
*November 22, 2010*

**College Algebra**

thank you so much!
*November 22, 2010*

**College Algebra**

Only 34% of the carbon-14 in a wooden bowl remains. How old is the bowl? (Carbon-14 has a half-life of 5,700 years.)
*November 22, 2010*

**5th grade**

your daughter could ask her teacher what all she would need.
*November 14, 2010*

**College Algebra**

Thank you so much!
*November 10, 2010*

**College Algebra**

The population of the Earth is approximately 6 billion people and is growing at an annual rate of 1.9%. Assuming a Malthusian growth model, find the world population in 45 years. (Round your answer to one decimal place.)
*November 10, 2010*

**math**

9+6=___ _ _ 10+__=__ write the sum. show the make a ten fact you used
*November 3, 2010*

**algebra**

find (FxG)(X) and (GxF)(X) when f(x)=5x^2-1 and g(x)=2/x
*October 24, 2010*

**college**

find (FxG)(X) and (GxF)(X) when f(x)=5x^2-1 and g(x)=2/x
*October 24, 2010*

**Math**

what is y-12=16?
*October 18, 2010*

**social studies**

nomadic
*October 5, 2010*

**college physics**

Which of the following statements about special relativity is false? a).The proper length of an object is always larger than the length of the object in a frame where it is moving. b).The proper length of an object depends on the relative speed between the object and an ...
*October 4, 2010*

**College Physics**

The homework says 3 out of 4 are correct. With 1 being false so that means one of these have to be false.
*October 4, 2010*

**physics**

A novice golfer on the green takes three strokes to sink the ball. The successive displacements are 3.80 m to the north, 1.80 m northeast, and 1.00 m at 25.0° west of south. Starting at the same initial point, an expert golfer could make the hole in what single ...
*September 26, 2010*

**social studies**

WHAT ORESIDENT ORDERED AMERICAN TROOPS TO SEIZE THE PORT OF VERACRUZ IN APRIL 1914?
*September 20, 2010*

**6th grade/math**

I dont understand can you help me? Alicia has made a rectangle using 24 square tiles. If she adds the length and width of her rectangle together, she gets 11. What is the length and width of Alicia's rectangle?
*September 10, 2010*

**physics**

1103.4
*September 4, 2010*

**Math**

Graph each equation by point-plotting 3x-2y=6
*September 1, 2010*

**10th grade Math**

A radio station's signal has a radius of 100 miles. If you drive at a constant speed of 40 miles an hour, nonstop, directly across the diameter of the signal, how long can you listen to the station before the signal fades?
*June 26, 2010*

**10th grade**

The difference between two numbers is 25. The smaller number is 1/6th of the larger number. What is the value of the smaller number?
*June 26, 2010*

**Chemistry**

How could i determine the apparent molal concentration of BaNO3 when the freezing point of the aqueous solution is -2.65 degrees Celcius
*May 3, 2010*

**10th grade**

radio 5 to 3 how many of each one totals 4000?
*March 15, 2010*

**chemistry**

5.76 multiplied by 10 to the 19th power. Labeled as atoms.
*February 1, 2010*

**health **

What is social health?
*January 29, 2010*

**math**

vnidsjvnbsdifb wsgyswrgywerygwb GYw
*December 4, 2009*

**Math**

If u have a hundred points and split it into 4 . But you cant use a number more than once. What numbers would you use.
*December 4, 2009*

**latin**

i need help translating this sentance to latin.. "six safe and favorable slaves were standing under their healthy statues and always satisfied the opinion of the cruel syracusans with wisdom"
*October 26, 2009*

**Graphic Design**

Find three examples of this typeface in use today.... I'm lost with this question and I can't find anything. Can you help me?
*October 19, 2009*

**5th grade -math**

what is a range?i thought it was 5
*August 27, 2009*

**5th grade -math**

okay show i need to use a ruler
*August 27, 2009*

**5th grade -math**

name five fraction numbers between 0 and 1?
*August 27, 2009*

**5th grade math-ms sue**

name five fraction numbers between 0 and 1?
*August 27, 2009*

**5th grade math-ms sue**

9 is that correct
*August 27, 2009*

**5th grade math-ms sue**

are you here.
*August 27, 2009*

**5th grade math-ms sue**

ms. sue*****ann and celia have 5 pens, 18 pencils, anf 22 erasers. If they share them equally, how many pencils will each one have?
*August 27, 2009*

**5th grade math**

what is a factor? and can you give me an example
*August 27, 2009*

**5th grade**

MS. SUE***WHAT IS A FACTOR?
*August 27, 2009*

**5th grade math**

Name two fractions equivalent to 4/6
*August 17, 2009*

**Social Studies**

Vietnam War website suggestions?
*June 2, 2009*

**social studies**

Does anyone know some good websites to get information on the effects of the Vietnam war?
*May 31, 2009*

**social studies**

What were the two major alliances in Europe in the years leading up to WWI?
*May 24, 2009*

**sale price**

How do you find sale price? ex. A soccer uniform that normally sells for $45 is on sale for 30% off. Find the sale price.
*May 24, 2009*

**unit rate**

How do you find unit rate? ex. 80/2.5 = x/1
*May 24, 2009*

**science**

Im pretty sure its outer crust, inner crust, mantle, and core. Again, im only pretty sure. I dont have my science text book with me.
*May 24, 2009*

**math**

He is 7 inches short
*April 22, 2009*

**Math-Functions**

wellll you would have to plug in -3 for x. do the rest of the math
*February 5, 2009*

**calculus**

please help with this problem- i've been working for the last 2 hours and can't seem to find a solution the integral of ln(x^2-x+2)
*February 5, 2009*

**7th grade**

1,500 pages in 12 days = _____ pages in 3 days.
*January 12, 2009*

**3rd grade science**

sound is made with matter and
*December 8, 2008*

**3rd grade science**

what is also a form of energy
*December 8, 2008*

**3rd grade science**

what is a form of energy
*December 8, 2008*

**3rd grade science**

what are forms of energy
*December 8, 2008*

**chemistry**

three questions please: (1) What kinds of evidence can you use to determine if a chemical reaction has occurred? (2) How do the properties of the cooked egg differ from the properties of a raw egg? (3) how are the endothermic and exothermic reactions the same? How are they ...
*December 2, 2008*

**algebra**

(x^2n - y^n)(x^2n -Y^n)
*November 27, 2008*

**algebra**

(x^2n - y^n)(x^2n -Y^n)
*November 27, 2008*

**math**

10x+5y^2+2xy-4y^2+4xy-x3=
*October 30, 2008*

**Statistics**

Problem 2: A random sample of 10 miniature tootsie rolls was taken from a bag, each piece weighed on a very accurate scale. The results in grams were: 3.087 3.131 3.241 3.241 3.27 3.353 3.4 3.411 3.437 3.477 a)construct a 90% confidence interval for the true mean weight. b)...
*October 20, 2008*

**Statistics**

I have 2 statistics problems that I've done and felt completely confident with them until I worked the problem a different way and got a different answer. I was wondering if you could tell me if I have the right answers or not. Thanks so much! A certain air plane has 2 ...
*October 20, 2008*

**Statistics**

What measurement forms normal distribution? Would it be the mean and variance? (avg. and standard deviation) Could you help me please
*October 15, 2008*

**Statistics**

What measurement forms normal distribution?
*October 15, 2008*

**8th Grade Math**

Tom was floating down the river on a raft when, 1km lower down, Michael took to the water in a rowing boat. Michael rowed downstream at his fastest pace. Then he turned around and rowed back, arriving at this starting point just as Tom drifted by. If Michael's rowing speed...
*September 30, 2008*

**Maths**

In a quadrilateral ABCD, angle A = 120 degrees angle B = 140 degrees The bisectors of the angles C and D meet at the point Y. Find the size of the angle DYC
*September 30, 2008*

**math**

The RANGE is the difference between the lowest and highest values. In this case 100 - 80 = 20, so the range is 20. The range tells you something about how spread out the data are. Data with large ranges tend to be more spread out.
*September 30, 2008*

**Maths - Pigeon-hole principle**

Using the Pigeon-hole principle... 91 five-digit numbers are written on a blackboard. Prove that one can find three numbers on the blackboard such that the sums of their digits are equal.
*September 30, 2008*

**maths**

91 five-digit numbers are written on a blackboard. Prove that one can find three numbers on the blackboard such that the sums of their digits are equal.
*September 30, 2008*

**Maths**

When a certain number N is divided by d, the remainder is 7. If the original number N is multiplied by 5 and then divided by d, the remainder is 10. Find d.
*September 30, 2008*

**8th grade math.**

i need help with dividing negative numbers. for example :what is -2/-4.
*September 8, 2008*

**respost A&P**

Dengue fever and Dengue Hemorrhagic Fever (DHF) "Dengue and dengue hemorrhagic fever (DHF) results from infection by any of four serotypes of dengue viruses. Transmission occurs through the bite of infected Aedes mosquitoes, principally Aedes aegypti, which is also the ...
*July 20, 2008*

**Anatomy and Physiology paper**

I have to do a research paper in A&P please check this over for me and lwt me know what you thinks thanks this what needs to be done Select a single medical disorder. Consult resources other than the course textbook and this study guide. Examples of resources include other ...
*July 19, 2008*

**chemistry**

This person meant sulfite.
*July 1, 2008*

**math-algebra**

sqrt27xy^3/sqrt9x I'm getting 3 answers to this. yxsqrt3y/x, ysqrt3xy/3x, and 3sqrt3y Can anyone please tell me which one is correct?
*June 10, 2008*

**Chemistry**

The absorbance values At & A0 recorded in the experiment 'Rate Law Determination of the Crystal Violet Reaction' are used in the place of the concentration values of which species A. CVOH B. CV+ C. –OH D. Na+ E. H2O
*May 16, 2008*

**chemistry**

zero and second are right but first is not b, i dont know what it is
*May 15, 2008*

**chemistry**

the question is not answered above!! please help!!
*May 1, 2008*

**Chemistry**

I think half reactions are redox and Pb has the greatest ability to reduce its neutral metal
*April 21, 2008*

**chemistry**

I still don't understand are the reactants on one side of the || and on the other side is products? for the second one there are 2 answers that could possibly work here
*April 18, 2008*

**science**

identify three kinds of nerons that are found in the nervos system?describe how they interact to carry nreve impulse?
*March 20, 2008*

**math**

I had this same question ;) I guess its already been answered
*March 2, 2008*

**physics**

Which truck has more momentum?? 20kg*m/s or 20000kg*m/s??? HELPPP!!!
*October 8, 2007*

**Social Studies**

Can you please help me understand what is meant by "democratic spirit"? Thanks
*September 30, 2007*

**Chemistry 1 H**

AgNO3+ BaCl2-> AgCl+ Ba(NO3)2 a. balence the equasion b. How many grams of silver chloride(AgCl) are produced from 5.0g of silver nitrate (AgNO3) reacting with an excess of barium chloride(Ba Cl2)? c. How Many grams of barium chloride (BaCl2) is necessary to react with 5.0...
*January 4, 2007*