Friday

May 22, 2015

May 22, 2015

Total # Posts: 203

**chemistry**

ÄH°reaction = sum of standard enthalpy of formation of products - sum of standard enthalpy of formation of reactants ÄH°reaction = [ 2 X ÄH°f for H2O + 2 X ÄH°f for SO2 ] - [ 2 X ÄH°f for H2S + 3 X ÄH°f for O2 ] ÄH°...
*October 25, 2011*

**science**

If a baseball is thrown 30 m/s backwards from a truck moving 50 m/s, how fast will the ball strike the glove of a ground-based catcher?
*August 7, 2011*

**English**

In 3–5 sentences, write down what you told someone in that conversation. Once you write your sentences, go back and identify the sentence type of each one. They will be one of these three options: simple sentence, compound sentence, or complex sentence. Explain why you ...
*May 28, 2011*

**Math- college**

Lisa's car get 22 miles per gallon of gasoline. How many miles can she drive on 24 gallon of gas?
*May 13, 2011*

**Math- college**

A company has to ship 1148 kg of sand,if one bag can hold 13kb of sand how many bags can company fill in with sand. How many kilogram of sand will be left over.
*May 13, 2011*

**physcis**

A stone is shown at rest on the ground a vector shows the weight of the stone. complete the vector diagram showing another vector that results in zero net force on the stone. b. what is the conventional name of the vector you have drawn
*April 7, 2011*

**English Comp. 2**

How do i write a rough on a paper my topic is many people appear obsessed with exercise ( diet).
*January 30, 2011*

**college algebra**

what is the sum 1500sqrt(2)+1450
*January 27, 2011*

**Math**

Write an equation that is parallel to y=1/4-7 and goes through the point (4,-5)
*January 24, 2011*

**calculus**

the side of a cube is expanding at a constant rate of 2 centimeters per sesond. what is the instantaneous rate of change of the surface area of the cube, in cm2 per second, when its volume is 27 cubic cm
*December 30, 2010*

**english - the cay**

why didn't young phillip remember very much about his former home in virginia?
*December 6, 2010*

**Chemistry**

A piece of solid carbon dioxide, with a mass of 6.8 g, is placed in a 4.0-L otherwise empty container at 21°C.
*December 5, 2010*

**physics**

If a baseball is thrown 30 m/s backwards from a truck moving 50 m/s, how fast will the ball strike the glove of a ground-based catcher?
*November 30, 2010*

**HELP! Statistics**

Which of the following statements about the margin of error is false? 1. Statisticians routinely construct interval estimates by making their point estimate the interval center and creating a range of other possible values, known as the margin of error, below and above the ...
*November 24, 2010*

**Statistics**

For each of the following samples that were given an experimental treatment, test whether these samples represent populations that are different from the general population: (a) a sample of 10 with a mean of 44, (b) a sample of 1 with a mean of 48. The general population of ...
*November 19, 2010*

**Statistics**

For a population that has a standard deviation of 10, figure the standard deviation of the distribution of means for samples of size- (b) 3.
*November 19, 2010*

**Math**

CLEVELAND MADE 4 TYPING ERROR IN 60 WORDS. WHAT IS THE PROBABILITY THAT HIS NEXT WORD WILL HAVE AND ERROR?
*October 7, 2010*

**Chemistry**

The ΔH per mole of CaCl2 is -81.0 kJ. Calculate the final temperature of an aqueous solution if 30 g of CaCl2 are added to 100 g of water at 23oC. Assume that the specific heat of the solution is the same as that of water
*October 7, 2010*

**Geomerty**

If UV = X+6 and UY = x - 1 Find YV. Y is the midpoint of U and V. Please show work.
*September 16, 2010*

**11th grade**

ok, thank you for your help
*September 16, 2010*

**11th grade**

I'm so confused on these 4 problems
*September 16, 2010*

**11th grade**

can you help me?
*September 16, 2010*

**11th grade**

yes
*September 16, 2010*

**11th grade**

need to work these out
*September 16, 2010*

**11th grade**

need help with these problems can anyone help me- 2x-1=y 2x=y-6 3y=-6x x+4y=12 Thank you
*September 16, 2010*

**probabilities**

z < .05=
*August 4, 2010*

**random variables**

For the standard normal random variable Z, compute the following probabilities. For the following problems, use four decimal places. 16. P (0 less than or equal to Z less than or equal .9) 17. P (-1.3 less than or equal to Z less than or equal to) 18. P(Z > 2.5) 19. P(Z ...
*August 2, 2010*

**chemistry**

Any reaction that absorbs 150 kcal of energy can be classified as ________.
*July 26, 2010*

**probabilities**

Freddy owns a taxicab company and is trying to find the most economical method of handling incoming calls. He currently has a couple of employees working the phones, but wonders if there is a better arrangement. His options for the call center are: continue with his own staff...
*June 27, 2010*

**algebra2**

P (Z ¡Ü -.64)
*June 27, 2010*

**algebra2**

P (-1.1 <_ Z <_ 0) the symbols are less than or equal to but i can't make them on here
*June 27, 2010*

**alegbra**

Thank you I will check it out
*June 27, 2010*

**alegbra**

p (z < .15)
*June 27, 2010*

**math**

p(z>2.3)
*June 27, 2010*

**statistics**

Suppose that you are given a decision situation with three possible state of nature: s1, s2, and s3. The prior probabilities are P(s1) =.1, P(s2) = .6, and P(s3) = .3. With sample information I, P(I|s1) =.15, P(I|s2) = .2, and P(I|s3) = .1. Compute P(s1|I)= Compute P(s2|I)= ...
*June 27, 2010*

**statistics**

P(Z > 2.3)
*June 27, 2010*

**statistics**

the symbols are less than or equal to
*June 27, 2010*

**statistics**

P (-1.1 ¡Ü Z ¡Ü 0)
*June 27, 2010*

**Find the Volume**

Got it. Thanks MathMate..
*June 13, 2010*

**Find the Volume**

I put B for this answer but I was not sure when I rounded it, this would be the closest answer.
*June 13, 2010*

**Find the Volume**

The diameter of a Sphere is 4.8 cm Use 3.14 and round to the nearest thousandth. A 57.876 cm3 B 463.012 cm3 c 289.382 cm3 d 72.346 cm3
*June 13, 2010*

**Geometry WP**

My thought process is A for sure. But D seems like a better choices. Now I'm confused your thoughts??
*June 13, 2010*

**Geometry WP**

Can you help me with this one. I am not sure where to go with this question? Choose the most resonable unit of measure.. One strand of hair: A)200 mg B)20 mg C)2 mg D)12 mg
*June 13, 2010*

**Geometry WP**

Thanks so much. The choices puzzled me.
*June 13, 2010*

**Geometry WP**

Ok, this is the list of choices i'm thinking A?? A)Double the Celsius temperature and add 30. B)Triple the Celsius temperature and add 30. C)Triple the Celsius temperature and subtract 10. D)Add 52 to the Celsius temperature.
*June 13, 2010*

**Geometry WP**

While in Europe, Allison heard a weather forecast that said the temperature would be 22°C (this is about 74°F). Give a rule that could give Allison an easy way to convert from Celsius to Fahrenheit
*June 13, 2010*

**Geometry WP**

Thanks Ariel. I got this answer, i was making sure you added 4ft to all the sides. Thanks abunch!
*June 13, 2010*

**Geometry WP**

Im sorry about that typo. 195ft and has a perimeter of 56ft. He wants to increase the size of his garden by 4 ft in both directions. What will be the area of his expanded garden?
*June 13, 2010*

**Geometry WP**

Robert has a rectangular garden that is currently 195 and has a perimeter of He wants to increase the size of his garden by 4 ft in both directions. What will be the area of his expanded garden? A) 112 B) 323 C) 72 D) 780
*June 13, 2010*

**Geometry**

A spherical storage tank has a diameter of 48 ft and is full of water. How many delivery trucks with cylindrical tanks measuring 8 ft in diameter and 10 ft long can be completely filled from the storage tank? A) 230 trucks B) 115 trucks C) 86 trucks D) 1152 trucks
*June 13, 2010*

**Geometry**

If the edge of a cube is doubled, the volume is A. one-half as much b. doubled c. quadrupled d. none of these
*June 9, 2010*

**English**

ABC A poem that has five lines that create a mood, picture, or feeling. Lines 1 through 4 are made up of words, phrases or clauses while the first word of each line is in alphabetical order. Line 5 is one sentence long and begins with any letter. Acrostic Poetry that certain ...
*June 1, 2010*

**social studies**

Henry the 8th had six [6] wives.
*June 1, 2010*

**Math**

Trapezium: A = ½ (a+b)h where a and b are the side lengths of the parallel sides, h is the height. Square: A = l 2 where l is the length of a side.
*June 1, 2010*

** Math For Educator**

When Alison and Pamela play chess, Alison wins 60% of the time. If they play a best-3-of-5 series, how many games would you expect to be played before a winner is determined? Use the random digits below which were generated using the command Int(5 × Rand) + 1 on a ...
*May 30, 2010*

**math**

A cone is a 3-dimensional shape; the 3-dimensional equivalent of perimeter is area. To find the perimeter of a 3D shape you simple measure all the sides than add the measurement together
*May 30, 2010*

**Math**

Estimate the number of personally constructed greeting cards possible at a machine if there are 12 designs, 30 messages, 18 closings, and 10 different paper stocks on (1 + 1)n, which to print the card. Indicate how you made your estimate. How valid was your estimate?
*May 20, 2010*

**Math**

A ship carries exactly 10 different signal flags. If each possible combination and ordering of 4 of these flags connotes a specific message, how many signals can be sent with these flags, taken 4 at a time?
*May 20, 2010*

**Math/ Probability**

The mean systolic blood pressure of adult males is normally distributed with a mean of 138 (millimeters of mercury) and a standard deviation of 9.7. What percent of adult males have blood pressure between 161.28 and 164.9?
*May 19, 2010*

**Math**

The number of accidents that occur at the intersection of Pine and Linden streets between 3 p.m. and 6 p.m. on Friday afternoons is 0, 1, 2, or 3,with probabilities of 0.84, 0.13, 0.02, and 0.01, respectively. Graph this probability distribution. What is the expected value for...
*May 18, 2010*

**Math**

The daily sales at a convenience store have a mean of $1350 and a standard deviation of $150. Assuming n/N is less than or equal to .05, that standard deviation of the sampling distribution of the mean sales of a sample of 25 days for this convenience store is ?
*May 16, 2010*

**Statistics**

The daily sales at a convenience store have a mean of $1350 and a standard deviation of $150. Assuming n/N is less than or equal to .05, that standard deviation of the sampling distribution of the mean sales of a sample of 25 days for this convenience store is ?
*May 16, 2010*

**chemistry**

under what condition will the condensation of a liquid be an irreversible process?
*May 5, 2010*

**Biology**

Plants can be drowned just like people can. It can also cause erosion of the nutrient soil and seeds
*May 5, 2010*

**Chemistry**

I'm trying to do this right now too for a lab report and I dont get it at alllllll
*May 5, 2010*

**9th grade**

(2x-1)(x+2)
*April 17, 2010*

**9th grade**

(2x-1)(x+2)
*April 17, 2010*

**9th grade**

(a-8)(a-9)
*April 17, 2010*

**English 101**

Do these two sentences contain misplace and dangling modifiers are there correct. 1.Louise projected the photographs on a large screen that she had taken at the zoo. 2. There is a bracelet at the musuem that is four thousand years old.
*January 29, 2010*

**English 101**

Which sentence contains a misplace and dangling modifier. 1. Determined, Christy Haubegger planned to publish a bilingual magazine for hispanic women. 2.All bundled up in a blanket, the baby outing was a brief one.
*January 28, 2010*

**English 101**

Which sentence is parallel and which is not? 1. Sports fan may disagree about whether going to baseball games or to watch football is more fun, but few people can ignore the importance of sports in America. 2. Some sports fans argue endlessly and with anger about whether ...
*January 28, 2010*

**English 101**

Which sentence is parallel and which is not parallel. 1. Einstein liked doing mathemathical research more than to supervise a large laboratory. 2.While wrapping the gifts, I noticed that murray, my pet terrier, kept trying to untie the bow.
*January 28, 2010*

**English 101**

Does this sentence contain a misplaced or dangling modifier? The storm did not prevent the undaunted crew from setting sail as planned.
*January 28, 2010*

**math**

15 more teachers
*November 11, 2009*

**7th grade**

can someone plz give me the answer so i can do my homework
*October 21, 2009*

**high school**

what about todays society reinforces american civic values
*August 6, 2009*

**Home Economics- Clothing and Textiles**

what are 5 reasons for disposal of fullness on garments?
*April 14, 2009*

**business help**

Which of the following is the most important step to help improve America's business ethics?
*March 29, 2009*

**medical billing and coding**

With which section of CPT codes is the physical status modifier, such as PI for normal, healthy patient, exclusively used? A.Evaluation and Management B.Radiology C.Pathology and Laboratory D.Anesthesia
*November 16, 2008*

**medical billing and coding**

Under CPT guidelines, all services related to a surgical procedure are not additionally reimbured A.before the global period. B.after the global period. C. during the global period. D.during the E/M period.
*November 16, 2008*

**medical billing and coding**

Under CPT's definition, after a consultation, who takes responsibility for the patient's care? A.the referring physician B.the consulting physician C.the PCP D.the specialist
*November 16, 2008*

**algebra**

IN 1988, the number of transmitters in the Intel 386 Sx was 275,000. It has doubled every 24 months since then. Write an equation that predicts teh number of transmitters in a micro processer n years after 1988.
*October 30, 2008*

**math**

[y-(-6)]=
*October 22, 2008*

**Chemistry**

calculate the grams of hydrochloric acid that must be diluted to a volume of 8 liters to produce a concentration of .25 moles
*September 4, 2008*

**8th grade**

Jamie was throwing darts at targets. When his dart landed in the center of the target(the bull eye)and he earned 7 points. However, when his dart landed on the outside ring he earned 2 points. After 50 throws his friend reported his score to be 160 points. Jamie wanted to know...
*August 28, 2008*

**Economics**

Price elastic
*August 23, 2008*

**Please help me**

A car rents for $40 per day plus 20 cents per mile. You are on a daily budget of $92. What mileage will allow you to stay within budget?
*June 13, 2008*

**Confused**

Graph equation by plotting points x=2
*June 13, 2008*

**Confused**

Graph the following equation and identify the y- intercept. y=x+4
*June 13, 2008*

**Confused**

Graph equation 3x-9=3y
*June 13, 2008*

**Confused**

Solve with a solution set 3(3+4x)-6>63
*June 13, 2008*

**Confused**

Use intercept to graph equation -x + 4y =8
*June 13, 2008*

**Confused**

Find the slope of these problems y=-4x+3 and x+6y=12
*June 13, 2008*

**Algebra**

2+48>6x-12
*June 10, 2008*

**Algebra**

3(x+1)-(2x+4_>15-x
*June 10, 2008*

**Algebra**

Explain why the line x = 4 is a vertical line.
*June 10, 2008*

**history**

how important was religion in fashioning early american culture? did the la. purchase raise serious questions of constitutionality? were the republicans acting consistely with their own principles?
*May 22, 2008*

**205**

The New York steak, the Maine lobster, and the beef stroganoff at that restaurant are all exceptionally good. All the entrees are excellent.
*May 8, 2008*

**Math - 3rd grade**

Multiplication: What does it mean to use front-end estimation?
*January 7, 2008*