Saturday

April 30, 2016
Total # Posts: 587

**Math check**

Subtract -28 - (-33)= -61
*October 9, 2014*

**statistics**

how to identify the 5 W's in the problem of the student averages in a High School college algebra class for the last semester. the teacher wanted to see how well the class did and constructed the Distribution from the grade book. who- Students what- average when last ...
*October 4, 2014*

**college algebra**

y = 1 − (x − 2)^2
*September 29, 2014*

**math/help please**

Question: a fertilizer covers 5/8 square foot in 1/4 hour. This is the last unit rates question. Please explain how you got the answer so I can understand this lesson.
*September 28, 2014*

**math/help please**

Question: a garden snail moves 1/6 foot in 1/3 hour. This is unit rates. Please help, I don't get this lesson!
*September 28, 2014*

**math/help please**

Question: Kenny reads 5/8 page in 2/3 minutes. This is unit rates. Please help!
*September 28, 2014*

**Math**

How can I explain that 1 15/16 is closest to 2 than 17/8 and 63/32
*September 17, 2014*

**Math**

I wrote question you have not dissolved
*September 13, 2014*

**Math**

Please solve the Q look ( nina, math)
*September 13, 2014*

**Math**

Analyze Greg saw these numbers on a license plate while driving: 2,4,5,3 and 9 . Write one possible number that could be on the license plate. Help me,,
*September 13, 2014*

**CHM**

rank the following items in order of accuracy when they are used for their intended purpose: volumetric pipet, beaker,erlenmeyer flask,mohr pipet,graduated cylinder,volumetric flask,buret my answer MOHR PIPETTE 1 VOLUMETRIC PIPETTE 2 BURET 3 VOLUMETRIC FLASK 4 GRAD CYLINDER 5 ...
*September 7, 2014*

**Chemistry**

Thank you but i'm not understanding how you got .002 for x
*August 3, 2014*

**Chemistry **

A chemist wants to prepare phosgene, COCl2, by the following reaction: CO(g) + Cl2(g) COCl2(g) He places 2.60 g of chlorine, Cl2, and an equal molar amount of carbon monoxide, CO, into a 10.00 L reaction vessel at 395 °C. After the reaction comes to equilibrium, he adds ...
*August 3, 2014*

**chemistry**

a) Calculate the percent ionization of 0.125M lactic acid (Ka=1.4x10^-4) b) Calculate the percent ionization of 0.125M lactic acid in a solution containing 0.00075 M sodium lactate.
*July 31, 2014*

**Statistics**

In hypothesis testing, as the a level gets smaller, the level of confidence increases. True or False? And why or why not?
*July 30, 2014*

**Statistics**

Express the confidence interval (0.033,0.099) in the form of P-E<p<P+E
*July 27, 2014*

**Statistics**

Express the confidence interval (0.033,0.099) in the form of P-E<p<P+E
*July 27, 2014*

**Writing**

Was it b? Did you get it right?
*May 21, 2014*

**Math-Variance**

Favorable
*May 12, 2014*

**Math Word Problem %**

if lisa spends 3 hours driving to and from work each day ,what percent of her day does,she spend driving to and from work each work day
*May 8, 2014*

**math graphs**

Thank you so much Mili!! ;D
*May 5, 2014*

**Math 221**

Thank You Steve I will note that thanks again !
*April 17, 2014*

**Math 221**

y-y1 =m(x-x1) y=5=-3x-*(x-1) y-5=-3x-3 y-5+3=-2+1= y=-3 I don't know if this is correct
*April 17, 2014*

**Math 221**

the equation of a line parallel to the given line but passing through the given point. I can't figure out. y=-3x-6;(-1, 5)
*April 17, 2014*

**math**

Thanks Iris !! Got them all correct!
*April 13, 2014*

**chemistry**

a wet gas collected over water has a volume of 900 mL at50 degrees Celsius and a pressure of 84.6 kPa. The partial pressure of water at this temperature is 12.3 kPa. What is the volume of the dry gas at 120 kPa?
*April 6, 2014*

**ADVANCED WORD PROCESSING**

Sally will clear and set tabs in the Tabs dialog box. Desi will set and clear tabs on the Horizontal Ruler. Who is correctly setting and clearing tabs?
*April 4, 2014*

**Math**

What is the perimeter of a regular hexagon with sides measuring 3 1/2 feet
*April 1, 2014*

**Math **

A builder replaces the original 3 1/4 foot counter tops with one that are 2 1/2 feet high. What percent of the original height is the height of the replacement counter tops? Round your answer to the nearest whole percent
*March 31, 2014*

**Math help**

What is 27% of 90. estimate How do you solve
*March 31, 2014*

**MATH HELP!!**

3c-7d=-3 2c+6d=-34
*March 23, 2014*

**Chemistry [back-titration] - please check my sol'n**

I get it now. I didn't think about the reaction of Fe^2 and Cr2O7^2-. I thought they would produce FeCr2O7, so I thought they're in 1:1 ratio. Yes, I got 159.6 g/mol as weight of TeO2 (as what I've typed above). :) Yes, I've seen the post about the nuclear chem...
*March 19, 2014*

**Chemistry [back-titration] - please check my sol'n**

A 7.00 gram sample containing the mineral tellurite was dissolved then treated with 70.0 mL of 0.03114 M K2CrO7. 3 TeO2 + Cr2O7 ^2- + 8 H+ -> 3 H2TeO4 + 2 Cr3+ + H2O When reaction is complete, the excess Cr2O7 2- required a 14.05 mL back titration with 0.1135 M Fe2+. ...
*March 19, 2014*

**Economics**

Which of the following is not a factor of production? A. Capital B. Goods and Services C. Labor D. Land
*March 19, 2014*

**American Goverment**

I think it's C
*March 18, 2014*

**American Goverment**

Which is an important function of county government? A. taxing imports B. overseeing tribal governments C. running elections D. hosting foreign leaders
*March 18, 2014*

**Math**

George says that if you subtract 185 degrees from an angle that measures 360 degrees, the new angle is an obtuse angle. Is this true
*March 16, 2014*

**To Nina**

Oh my, thank you so much for your help...! :)
*March 16, 2014*

**Chemistry (titrations)**

Thank you! I understand it now. :)
*March 15, 2014*

**Chemistry (titrations)**

15.00 mL of 0.01200 M EDTA were used to titrate 50 mL aliquot solution containing iron (II). How much iron (II) is present in the solution? The answer in the book is 201 ppm. I tried getting the moles of EDTA (n,EDTA = 1.8 x 10^-4 mol). I think they're in 1:1 ratio, or I ...
*March 15, 2014*

**Chemistry**

Calculate the amount of energy released per gram of nuclei when 2 protium nuclei react to form deuterium nucleus (protium = 1.00782 amu, deuterium = 2.01410 amu). The answer in the book is -2.0 x 10^10 J, but I don't have any idea on how to do this. Please help, and thank ...
*March 15, 2014*

**Personal Finance**

The maximum tax rate on estates and gifts: A. is gradually declining. B. is gradually increasing. D. has increased sharply
*March 10, 2014*

**Math Analysis 2 **

assume that x=x(t) and y=y(t). Let y= (x^3)+4 and dx/dt=5 when x=2. dy/dt when x=2
*March 3, 2014*

**math**

Find the GCF and LCM of 15 and 50
*February 16, 2014*

**LANGUAGE ARTS UGRENT!!! (Check Answers)**

How about now Ms. Sue? 2: A 3: D
*February 12, 2014*

**LANGUAGE ARTS UGRENT!!! (Check Answers)**

Both are wrong?
*February 12, 2014*

**LANGUAGE ARTS UGRENT!!! (Check Answers)**

Oh okay. Are they right now? 2: The person that would buy the coat. 3: Anne has come to consider Mrs. Van Daan a member of her family because of the kindness she has shown.
*February 12, 2014*

**LANGUAGE ARTS UGRENT!!! (Check Answers)**

1. I was disgruntled by what you said, but I didn’t want to show my (1 point) happiness. **anger. jealousy. 2. When Peter tells everyone that Mr. Van Daan is going to sell Mrs. Van Daan’s coat, a stage direction reveals that Peter’s sympathy is with (1 point) ...
*February 12, 2014*

**Physics - please help me..**

A 1.35 kg mass is suspended from a spring with a spring constant of 189.0 N/m. The spring is attached to a rod which oscillates vertically at a frequency f. For what value of the frequency f will the system resonate?
*February 12, 2014*

**Damon**

I know that w=squ(k/m) and T=(2*pai)/w but its wrong and I dont know what to do.. can you help me?
*February 12, 2014*

**please help me.. physics**

A 1.30 kg mass is suspended from a spring, with a spring constant of 135.0 N/m. Find the driving frequency which would cause resonance.
*February 12, 2014*

**math **

Put into order from least to greatest 3/4, .85, 5/7, .62 My answer 3/4, 5/7, .62, .85
*February 11, 2014*

**math **

Put into order from least to greatest 3/4, .85, 5/7, .62 My answer 3/4, 5/7, .62, .85
*February 10, 2014*

**PHI103 WEEK 3**

This is the name for the reasons that one presents to support a conclusion. (Points : 1) Proposals Premises Deductions Inductions None of the above
*February 8, 2014*

**Physics**

A 3.00 gram lead bullet travels at a speed of 240 m/s and hits a wooden post. If half the heat energy generated remain with the bullet, what is the increase in temperature of the embedded bullet? (clead = 128 J/kg C)
*February 5, 2014*

**Help!!!**

Thanks Angel M. !
*February 3, 2014*

**Earth Science**

Thx Richard and Ms. Sue i think i might get this.
*January 9, 2014*

**Earth Science**

The Rocky Mountains are more jagged than the Appalachian Mountains. This suggests that • erosion has worn down the Appalachian Mountains more than the Rocky Mountains. • the Rocky Mountains are older. • the Appalachian Mountains are more likely to experience ...
*January 9, 2014*

**trig**

Two Airplanes leave an airport at the same time on different runways. One flies on a bearing of N66degreesW at 325 miles per hour. The other airplane flies on a bearing öf S26degreesW at 300 miles per hour. How far apart will the airplanes be after 2 hours?
*January 6, 2014*

**trigonometry**

From a point 150 ft from the base of a building the top and the base of a flagpole on a roof edge have angles of elevation of 27degrees49' and 21degrees42' respectively. Find the height of the pole.
*January 6, 2014*

**trigonometry**

A ship is sighted directly east of a lighthouse. Another ship, which is 20m away from the first ship, is observed at a bearing of N25degreesE from the lighthouse. If the first ship is 4.1 km away from the lighthouse, what is the distance of the second ship from the lighthouse?
*January 6, 2014*

**Math**

The length of a football pitch is 100m and the width of the pitch is 80 m calculate the length of a diagonal of the pitch give your answer to the nearest metre
*January 1, 2014*

**Math**

A plane flies due east for 120 km from airport a to airport b it then flies due north for 280 km to airport c finally it flies directly back to airport a calculate the direct distance from airport to airport a give your answer to the nearest kilometre
*January 1, 2014*

**English (grammar)**

Hi. I just want to ask if the statement below is grammatically correct: " I'll keep up what I can do for other people. " I think the thought of the statement can be understood, but I'm not sure if the grammar is correct (or the words are like jumbled). Help ...
*January 1, 2014*

**PHI 103**

If P is true, and Q is false, the truth-value of "P v Q" is (Points : 1) false. true. Cannot be determined All of the above
*December 17, 2013*

**Math**

emma has a small garden. Emma's garden is 1/5beans 1/8 piece & 1/2 corn. the rest is planted with flowers. what fraction of Emma's garden is planted with vegetables
*December 17, 2013*

**Math**

emma has a small garden. Emma's garden is 1/5beans 1/8 piece & 1/2 corn. the rest is planted with flowers. what fraction of Emma's garden is planted with vegetables
*December 16, 2013*

**PLEASE HELP!!!!**

((cotx+cscx)/(sinx+tanx))=cotxcscx Please prove left side equal to right side, only doing doing work on the left.
*December 16, 2013*

**Math**

emma has a small garden. Emma's garden is 1/5beans 1/8 piece & 1/2 corn. the rest is planted with flowers. what fraction of Emma's garden is planted with vegetables
*December 16, 2013*

**math**

thank you :)
*December 12, 2013*

**math**

What integer would represent "twenty-two hundred feet above sea level"?
*December 12, 2013*

**PHI 103**

If an argument does not commit a fallacy, it is A.necessarily valid. B.necessarily sound. C.Not enough information to determine D.Both A and B
*December 8, 2013*

**PHI 103**

A person who is shown his or her argument commits a fallacy should A. run screaming from the room. B. argue louder. C. add another fallacy. D. revise the argument.
*December 8, 2013*

**English (grammar)**

Thank you very much for your help. :)
*November 29, 2013*

**English (grammar)**

Thank you for your reply. :) By the way, how about if it's in the past (contributes -> contributed)? Can the phrase still be 'to your becoming'?
*November 29, 2013*

**English (grammar)**

Is this statement correct? "Helping other people contributes to your being a great leader." I'm not really sure with the phrase 'to your being'. It sounds incorrect but I'm not really sure. If it's incorrect, how do I rephrase the sentence?
*November 29, 2013*

**PreCal**

Logarithm of a negative number is imaginary. If you try plotting y = log x, you'll see that the x values are all positive and infinitely approaches zero.
*November 29, 2013*

**math check**

what unit of measure would you use to describe the distance from your house to school? D. Meters a.grams b. kilometers c. liters d. meters
*November 17, 2013*

**Math**

I need help
*November 17, 2013*

**ELA? Check answers!!**

1. Which of the following places would need to be sterile? A: park B: classroom C: A hospital operating room 2.Which of the following example of a question you might ask yourself to monitor comprehension? A: How can thrid-degree burns be treated at home? B: How is a third-...
*November 13, 2013*

**Math Help! Someone please help?:)**

1. The sides of a square are increased by a scale of 6. The perimeter of the small square is 10ft. What is the perimeter of the larger sqaure? 2.5 ft, 10 ft, 60 ft, 120 ft 2. A map of Utah has a scale of 1 cm:30 mi. The boarder of Utah and Wyoming measures about 3.7 cm. How ...
*November 5, 2013*

**Math help**

Solve this equation and check answer Fraction→n/56=8
*October 27, 2013*

**Math help**

Solve this equation and check answer Fraction→n/56=8
*October 24, 2013*

**Physics**

A 5 kg ball rolls down a 10meter long slope. Ignoring friction, how fast will the ball be rolling when it reaches the bottom?
*October 21, 2013*

**biology**

How does mitosis in plant cells differ from that in animal cells? A. Animal cells lack a cell plate. B. Plant cells lack centrioles. C. Plant cells lack spindle fibers. D. Animal cells lack cytokinesis. I chose b but I got it wrong please help....
*September 30, 2013*

**AP Calculus**

Consider the function f(x)= abs(x)(x-3)/9-x^2 a) what is the domain of f? What are the zeros of f? b) find all nonremovable discontinuities of f c) determine all vertical and horizontal asymptotes of f
*September 16, 2013*

**Math **

9 7/8 + 2 7/8 I get 11 14/8 Is that right
*September 12, 2013*

**history**

Write me a paragraph describing all the components of the English Bill of Rights that seem familiar or you know are the law in America.
*September 3, 2013*

**Algebra 2 **

Jessica's bank contains 18 quarters and dimes, of which q are quarters. Find the total value of the coins in dollars.
*September 2, 2013*

**Algebra 2**

Jessica's bank contains 18 quarters and dimes, of which q are quarters. Find the total value of the coins in dollars.
*September 2, 2013*

**Algebra 2**

Is this right?? (x)(x-2)(x-4)
*September 2, 2013*

**Algebra 2 **

A pyramid has a rectangular base. Find the volume if the length and the width of the bad and the hight are three convective odd integers and x is the largest integer.
*September 2, 2013*

**Acc Algebra 2 **

1. Name the property that Justifies each step in the simplification below. 1/2[(x+2)+(-x)]=1/2[-x+(x+2)] a.__?__ =1 /2[(-x=x)+2)] b.__?__ = 1/2(0+2) c.__?__ = 1/2*2 d.__?__ =1 e.__?__ My answers a. Communitive Property b.Assotiative Property c. equavelent expression d. ...
*August 28, 2013*

**chemistry**

find the ph of the resulting solution 10 ml of 0.06 mol/l is mixed with 20 ml of 0.02 mol.l Ca(OH)2
*June 27, 2013*

**Math**

erica painted a picture of her dog the picture has an area of 3,600 cm2 and is a square. she has placed the picture in a frame that is 5 cm wide. what is the perimeter of the picture frame?
*June 3, 2013*

**Math**

erica painted a picture of her dog the picture has an area of 3,600 cm2 and is a square. she has placed the picture in a frame that is 5 cm wide. what is the perimeter of the picture frame?
*June 3, 2013*

**English 09**

I need to create different nicknames for each character in Romeo and Juliet. Please Help. The nicknames should describe the character Juliet- Tybalt- Prince of Cats Rome- Lady Capulet- Lord Capulet- Lord Montague- Lady Montague- Nurse- Friar Lawrence- Paris- Prince Escalus- ...
*May 26, 2013*

**Geometry**

What is the measure of m<JIH ? FE = 7.5 cm IJ = 7.5 cm m < FGE = 28 degrees A. 124° B. 56° C. 28° D. 62°
*May 24, 2013*

**Chem**

In a preweighed flask a sample of5.8 gm was combined with water,mass of solid and water after subtracting flask weight is24.6gm,density of water is 0.997g/ml,what is density of solid.
*May 1, 2013*

**English **

What are some mature ways to decide issues within groups?
*May 1, 2013*