Thursday

October 30, 2014

October 30, 2014

Total # Posts: 337

**algebra 2**

Show by counterexample that (x+y)^-2 and x^-2+y^-2 are not equivalent??
*October 28, 2014*

**Computer Programming**

Create the flowchart and algorithm for a module that will prompt the user to enter the amount of cash they have in their pocket. The program should output “Not Enough” ($0 - $0.64), “Vending Machine” ($0.65 - $1.99), “Fast Food” ($2.00 - $4.99...
*October 27, 2014*

**algebra**

I need help factoring.Please! 1.4x^4-4x^2+1 2.a^4+a^2
*October 15, 2014*

**algebra**

Factor each of the following polynomials. 1. x^2+x-6 2. 6x^2+13x-5 Thanx!
*October 15, 2014*

**algebra 2**

Find the GCF and LCM of the following monomials. 1.)28,35,42 2.)9x^2y and 36xy^3
*October 9, 2014*

**algebra**

A car hits an object the object goes 25 ft in the air and lands 300 ft away, how fast was the car traveling when hit the object?
*October 5, 2014*

**algebra 2**

Multiply polynomials (ab-2)(ab+2)
*September 30, 2014*

**algebra **

How do I graph x<2y and x+y<0
*September 25, 2014*

**algebra 2**

How do I graph 3x+y<5.if u can help it'd be appreciated
*September 24, 2014*

**chemistry**

The reaction of 9.58 g of Carbon with excess O2 yields 8.90 g of CO2, what is the percent yield of this reaction?
*September 24, 2014*

**algebra**

I'm not sure how to answer this question? 1<3x+2<12 Please explain the answer so I know how to do these kind of questions
*September 12, 2014*

**PreCal**

An airplane has a ground speed of 523 mph and a component form of the velocity of <-482.781, -39.262>, due to wind. What is the bearing of the plane?
*July 21, 2014*

**physics**

formula is v=u+at; just sub values in
*June 11, 2014*

**math**

A music concert was attended by 450 people. Adult tickets sold for $70 and children’s tickets for $40. If total sales were $27,750, how much of each ticket was sold?
*May 21, 2014*

**Math**

6x=y+1 find the slope and y intercept
*May 5, 2014*

**Marketing**

How would various company objectives affect the development of a marketing mix for a new type of internet browser software? If this company were just being formed by a former programmer with limited financial resources, list the objectives the programmer might have. then ...
*February 18, 2014*

**Marketing**

Explain how a firm's objectives may affect its search for opportunities.
*February 17, 2014*

**Marketing**

How would various company objectives affect the development of a marketing mix for a new type of internet browser software? If this company were just being formed by a former programmer with limited financial resources, list the objectives the programmer might have. Then ...
*February 17, 2014*

**Physics**

Rotation is 3000 rev per min. F=1/T or T=1/F F is measured in rev per second. F=3000/60=50 T=1/50=0.02s S to MS is x1000 so 0.02s => 20ms Hence, it is appropriate to use 10ms/cm for a clear display of pulse.
*January 30, 2014*

**Biology**

Microorganisms develop resistance to antimicrobial drugs in a number of ways, EXCEPT A. Producing an enzyme that deactivates the antimicrobial drug B. Changing the cellular permeability to prevent the drug from entering the cell C. Interfering with the cell wall synthesis of ...
*January 18, 2014*

**Science**

Which of the following statements is most closely associated with Einstein's general theory of relativity? The gravitational constant has the same value everywhere. Mass is equivalent to weight. Being in an accelerated frame is indistinguishable from experiencing gravity. ...
*January 15, 2014*

**Psych T/F Questions**

1. Some hearing losses experienced by middle-aged adults are due to exposure to noise? True 2. A combination of progesterone and estrogen (HRT) is commonly used to treat immune system disorders? False 3. Men experience the same sudden downward shift in reproductive ability as ...
*November 4, 2013*

**Psych**

Thank you
*November 3, 2013*

**Psych**

Isn't that link for development...not population?
*November 3, 2013*

**Psych**

the population of the world between 1960 and 2000: doubled tripled remained stable decreased by half (maybe this one?)
*November 3, 2013*

**chemistry**

It's actually 0.00115
*October 14, 2013*

**Math**

If Anna is 5 ft tall. How tall is she in centimeters and what is the rate?
*October 1, 2013*

**College Statistics**

Suppose we want to model the number of rats captured in a single trap in a day, where the average number caught is 5 (i.e. X ∼ Poi(5)). (a) What is the probability of catching 6 rats in one trap in a day? (b) What is the probability of catching 12 rats in 2 traps in a ...
*September 30, 2013*

**College Statistics**

For X ∼ Bin(n, p), show that E(X) = np and Var(X) = np(1 − p) Our book defines this as true, but I don't know how to actually prove it.
*September 30, 2013*

**geometry**

In step 4 of the construction of a perpendicular line through a point, why must the compass point be placed on the points where the arc intersects with the original line? How would the construction be different if the compass point were placed at random points on the original ...
*June 26, 2013*

**World Geography**

A
*June 19, 2013*

**Physics**

Which of the following is correct for the two coherent light waves to produce zero light?
*May 31, 2013*

**algebra 1**

Circle the most appropriate description. 27.A city planning commitee surveys 100 people waiting at a bus stop about the expansion of the public transportation system. Random Sample,systematic sample,self-selected sample, convenience sample, bipartisan sample,stratified random...
*May 20, 2013*

**CHEMISTRY**

commercial HCL IS SOLD AT 37% WITH SPECIFIC GRAVITY OF 1.18.HOW WILL YOU PREPARE 5OML FOR 100STUDENTS AT THE CONCENTRATION OF 0.25M
*May 17, 2013*

**CHEMISTRY**

commercial HCL IS SOLD AT 37% WITH SPECIFIC GRAVITY OF 1.18.HOW WILL YOU PREPARE 5OML FOR 100STUDENTS AT THE CONCENTRATION OF 0.25M
*May 17, 2013*

**Algebra 1**

For each event,circle the most appropriate term. 21. Six friends go to a movie.How many ways can they sit in a row of six seats? counting principle,combination,factorial, or permutation
*May 15, 2013*

**general**

how can the plan of action help you address a current problem or challenge you are having with school
*May 15, 2013*

**Chen=mistry**

Sodium metal reacts violently with water to form NaOH and release hydrogen gas. Suppose that 3.00 g of Na reacts completely with 3.00 L of water and the final volume of the system is 3 L. What is the molarity M of the NaOH Solution formed by the reaction?
*May 1, 2013*

**Completing the sentence**

Balk
*April 29, 2013*

**Completing the sentence**

Since I'm afraid of the heights, I usually -------- at the idea of sitting in the first row of the topmost balcony in a theater.
*April 29, 2013*

**Math**

David and Joseph have a total of 328 marbles. Matthew and David have 176 marbles. Joseph has 5 times as many marbles as Matthew. How many marbles does Davis have?
*April 2, 2013*

**chemistry**

Calculate the temperature at which it is thermodynamically possible for C (s) to reduce iron(III) oxide by the reaction: 2Fe2O3 (s) + 3 C (s) ---> 4Fe (s) + 3CO2 I don't need a specific answer, but I'm not sure how to approach the problem. I'm assuming it has to...
*February 28, 2013*

**human development**

which one of the following expressions best illustrates overregularization?
*January 31, 2013*

**Accounting**

how do you classify what the cost to set up a manufacturing facility as? is it general, selling and administrative and what type of cost is it? Please Help.
*January 19, 2013*

**Chemistry**

What is Mass % of an aqueous NaOH solution in which molality of NaOH is 16.7m? Density of the solution is 1.4339g/ml
*January 13, 2013*

**Chemistry**

Solutions are made that contain 0.1 moles of each of the following compounds below in 100g of H20. Choose the compound whose solution will have the lowest freezing point? NaBr CO2 KClO3 MgCl2 MgSO4
*January 13, 2013*

**Chemistry**

Which of the following solutions would have the highest osmotic pressure? 0.15 M KCl 0.2 M C6H12O6 0.2 M C12H22O11 0.2 M CH3COOH 0.15 M CaCl2
*January 13, 2013*

**Intergrated Algerbra**

A caterpillar and snail are 300 ft apart. They meet face to face in 5 hours. What were their speeds?
*November 29, 2012*

**Physics **

a net force of 3.50 N acts on a 2.75 kg object. what is the acceleration of the object?
*November 29, 2012*

**science**

How many grams of citric acid is needed to titrate 20ml NaOH 0.05M their mole ratio is 1:3 respectively
*November 28, 2012*

**algebra**

Completely factor the following expressions. 1. 256z^2-4-192z^2+3 2. 2a^2c^3-14bc^3+32c^3d^2 3. 35g^2+6g-9 4. 3j^3-51j^2+210j
*November 28, 2012*

**algebra**

Completely factor the following expression.1.) 5c^2-24cd-5d^2
*November 28, 2012*

**algebra**

Completely factor the following expression.1.) 5c^2-24cd-5d^2
*November 28, 2012*

**algebra**

Completely factor the following expression. 1.4x^2-8x-12+6x
*November 28, 2012*

**Chemistry**

What is the general trend in the acidity of Period 3 oxides moving across the Periodic table from left to right? (Be sure to refer to the term acidity.)
*November 27, 2012*

**math**

2x squared plus 6 x plus 3 is equal to 0.....
*November 26, 2012*

**Medical coding**

What icd-9 procedure code is used for a hemilaminectomy medial facetectomy and foraminotomy?
*November 18, 2012*

**Algebra 1**

Christopher orders a 3 topping pizza for $15.25 and a 5 topping pizza for $17.75. Write and solve a system of linear equations to find the price of a plain pizza( no toppings) and the cost of each topping.
*November 14, 2012*

**Algerbra 1**

You have a coupon for $50 off your camera purchase of $100 or more at Zeke's Camera World. Write a function relating a camera's purchase price, y, to the retail price, x. Give the domain of this function.
*November 14, 2012*

**alegbra 1**

Solve the following systems of linear equations using algebraic method. 1)3y=11-2x 3x=y-11 2)8x-6y=14 12x-9y=18
*October 31, 2012*

**alegbra 1**

Solve the following system of linear equation using any algebraic method. 2x+5y=3 X-3y=7
*October 31, 2012*

**alegbra 1**

Solve the following system of linear equation using any algebraic method. 2x+5y=3 X-3y=7
*October 31, 2012*

**alegbra 1**

Solve the following system of linear equation using any algebraic method. 2x+5y=3 X-3y=7
*October 31, 2012*

**alegbra 1**

Solve the following systems of linear equations using any algebraic method.If possible,check your solution. 1)2x+5y=3 X-3y=7 2) 3y=11-2x 3x=y-11 3)8x-6y=14 12x-9y=18
*October 30, 2012*

**Math**

Some chickens, cows, and sheep are in a field. Their number of legs is 12 more than twice their number of heads. How many 4 legged animals are in the field?
*October 25, 2012*

**algebra 1**

Natalie performs a chemistry experiment where she records the tenperture of an ongoing reaction.The solution is 93.5 C after 3 minutes;90 C after 5 minutes,84.8 C after 9 minutes; 70.2 C after 18 minute; 54.4 C after 30 minutes;42.5 C after 37 minutes; and 24.9 C after 48 ...
*October 24, 2012*

**algebra 1**

1. Solve the linear system using substitution. 4x-y=5 4x+4y=-4
*October 23, 2012*

**AP US History**

well ms.sue the fact that she can't answer the question doesn't mean she doesn't have the potential to be in an AP class.
*September 26, 2012*

**Math**

Shoe me the steps to solvethe problem 12 divided by 1/4 to the second power
*September 17, 2012*

**chemistry**

what is the formula to determine the mass of propane that must be combusted in order to produce 188.23kJ of energy?
*August 11, 2012*

**math**

Try drawing a venn diagram and placing the numbers you have inside the circles for individual subjets.Then see how the numbers compare to the total number of students.
*August 11, 2012*

**english**

The answer is D because a slant rhyme is a "rhyme in which either the vowels or the consonants of stressed syllables are identical". Firm and Room have the final 'M' sound in common.
*August 11, 2012*

**science**

the experiment could be repeated with the same mice
*August 6, 2012*

**hEALTH**

B. If you write down what you consume and look at the package (or go online for resteurant food or fruits and vegetables) to see how many calories it has then you can keep a detailed record. The reason C doesn't work is that every one's body, metabolism,diet, and ...
*August 1, 2012*

**math**

What is the surface area of a rectangular prism measuring 3 1/2 ft.by 2 3/8 ft. by 8 feet ?
*July 20, 2012*

**math**

Thank you so much!
*July 20, 2012*

**math**

What is the surface area of a rectangular prism measuring 3 1/2 ft.by 2 3/8 ft. by 8 feet ?
*July 20, 2012*

**math**

Find the volume in cubic feet of the right rectangular prism measuring 3 1/2 by 8 feet by 2 3/8 feet
*July 20, 2012*

**algebra 1**

Label each statement true or false if false correct the underlined portion.If -4<-2t+6<10,then this is the underlined 2>t+6>-5. If this is underlined |y+8|+2=6,then this not underlined y+8=_+4. Translate and solve. the absolute value of three times a number,n,is ...
*July 13, 2012*

**stat**

Find the area under the standard normal curve to the left of z = 1.88, P(z < 1.88). (Give your answer correct to four decimal places.)
*July 7, 2012*

**prealgbra**

brandon needs $480 to buy a tv and stereo system for his room.He received $60 in cash for birthday presents. he plans to save $30 per week from his parttime job.to find how many weeks w it take to have $480, solve 60+30w=480
*June 28, 2012*

**algebra**

Christine went shopping and brought each of her eight nephews a gift , either a video costing 14.95 or a cd costing 16.88. she spent 133.41 on the gifts. How many videos and how many cds
*June 4, 2012*

**Chemistry**

Does ph differ with changes in concentration?
*April 20, 2012*

**Chemistry**

What is the pH of a 0.0353M solution of NH4F and a 0.0000666M solution of NH4F?
*April 20, 2012*

**Math Probability dice roll**

two fair dice are rolled, find the A)odds of getting a 9 B) the odds against getting a 12
*April 16, 2012*

**trig**

171km
*March 11, 2012*

**trig**

City A is 300km due east of city B. City C is 200km on a bearing of 123¤ from city B. How far is it from C to A?
*March 11, 2012*

**trig**

City A is 300km due east of city B. City C is 200km on a bearing of 123¤ from city B. How far is it from C to A?
*March 11, 2012*

**trig**

City A is 300km due east of city B. City C is 200km on a bearing of 123¤ from city B. How far is it from C to A?
*March 11, 2012*

**language arts**

that is actually true, but why is it so popular? could it be because of the brand name, or advertisement?
*February 27, 2012*

**language arts**

i'm doing a project on choosing some "status symbols" popular in society today. one status symbol i did was the restaurant called cheesecake factory, how do i explain how it is popular/important today?
*February 27, 2012*

**Pre-Algebra Math**

50
*February 21, 2012*

**comparing group means**

what appropriate null and alternative hypothesis would i use in this problem a teacher gives students a holding review session. did attending the session make a differnts in the final points in the class,give example of the appropriate statisical procedure
*February 18, 2012*

**math**

One number is 25% of another. The larger number is 12 more than the smaller. What are the numbers?
*February 16, 2012*

**Algebra**

The Hansons are considering two possible vacation destinations. A trip out west will cost $1075 in total airfare plus an average of %450 per day in expenses. A trip south will cost $1500 in total airefare plus an average of $365 per day in expenses. How many days should they ...
*February 15, 2012*

**English Home Language**

Can You Please Give Me Points as To How to add persuasive points to my speech " Women Should Rule The Way" I Already said they more Patient and better communcaters
*February 10, 2012*

**5th grade math**

A class consist of half as many boys as girls, if there are 14 boys how many girls are there
*November 17, 2011*

**chemistry**

the number of grams of KCI per 100g of water that would produce a saturated soluion at 50 degrees C is?
*November 15, 2011*

**Geometry**

need to find x x+153=130+2x+23
*September 29, 2011*

**geometry**

suppose m is b/t L and N. LM=4x+8, MN=9x-4, LN=82. what is x?
*September 25, 2011*