Monday
December 22, 2014

Posts by Matt


Total # Posts: 1,930

aLGEBRA
Find the domain of the function p(x)=2(pie2) -2x+9 What is the domain of p?
May 27, 2010

math
Find the domain of the function p(x)=2(pie2) -2x+9 What is the domain of p?
May 27, 2010

Math
Find the domain of the function g(x)= 1/6-5x I know that x is a real number but I need the domain please.
May 27, 2010

Math
On top of the sears building is a tv tower. From a point 300 ft away the bottom of the tower is at an angle of elevation equal to 42.14 degrees and the top of the tower is at an angle of elevation equal to 45.81 degrees. How tall is the tower.
May 19, 2010

Math
On top of the sears building is a tv tower. From a point 300 ft away the bottom of the tower is at an angle of elevation equal to 42.14 degrees and the top of the tower is at an angle of elevation equal to 45.81 degrees. How tall is the tower.
May 19, 2010

algebra
X^2-2X-1 is the complete answer see site above for example
May 15, 2010

algebra
4x^3-5x^2-10x-3 divided by 4x+3
May 15, 2010

algebra
one clerk can stuff every 30 seconds the 2nd clerk i every 40 seconds. how long will it take them to stuff 140 envelopes
May 13, 2010

Chemistry
74.38L
May 12, 2010

math
Write the following series using sigma notation: (x/3)-((4x^2)/9)+(x^3/3)-((16x^4)/81)+((25x^5)/243)-...
May 9, 2010

english
can fear be the mood of an essay iff not can you give me examples of the mood of an essay
May 8, 2010

word study
ship is to trip as shout is to
April 29, 2010

chemistry
How do you make a 100mL solution of 1.50 M of NaCl.
April 29, 2010

college
2039 km = 2039000 NOTE: Projectile motion signifies an x and y displacement, but let us assume this pertains to the freefall laws of motion. Top of the trajectory: Vf = 0 Vf^2 = Vo^2 + 2gy 0 = Vo^2 + 2(-9.81 m/s^2)(2039000 m) V0^2 = 4.00052*10^7 m^2/s^2 Vo = 6324.97 m/s
April 29, 2010

Chemistry
In studying the chemistry and qualitative analysis of anions, why wouldn't HCl be a good acid to use to determine the solubility of a silver precipitate in acid solution?
April 29, 2010

Chemistry
3. M = Molarity = mols per liter 0.85 M NaCl is equal to 0.85 mols/L You have 100 ml. (0.85 mol/L)(0.1 L) = 0.085 mol of NaCl In other words, add 0.085 mols of NaCl to the 100 ml solution. OR add (0.085 mol NaCl) * (58.44 g NaCl/molNaCl) = 4.9674 grams NaCL Add 4.97 g NaCl to ...
April 29, 2010

chemistry
how to make a 100 mL solutino of 1.50M of NaCl
April 28, 2010

algebra
Get y-intercept when x=0 g(x) = y = 2(0)^2 + 3(0) - 1 (0,-1) ; y-intercept = -1 x-intercept: set function equal to 0 2x^2 + 3x - 1 = 0 After quadratic equation... x-intercepts: x = -1.78, and x = 0.28 function to the 2nd power of x, so is a parabola opening upwards. Graphing ...
April 28, 2010

Accounting
If the owner of a company invests personal funds into his company, where does that fit into the balance sheet. I know the cash will increase, but I don't know how it put it in the equity section. For example, If Greg Jones invests $2000 into his company, would to equity ...
April 27, 2010

Accounting
If the owner of a company invests personal funds into his company, where does that fit into the balance sheet. I know the cash will increase, but I don't know how it put it in the equity section. For example, If Greg Jones invests $2000 into his company, would to equity ...
April 27, 2010

Accounting
If the owner of a company invests personal funds into his company, where does that fit into the balance sheet. I know the cash will increase, but I don't know how it put it in the equity section. For example, If Greg Jones invests $2000 into his company, would to equity ...
April 27, 2010

Physics
In using a slide wire potentiometer, show a proof for the equation Vx = Cx where V = the voltage drop, and C = the position along the slide wire potentiometer.
April 26, 2010

Chemistry
I have the Ksp. BaSO4 is 1.1 x 10^-10 and BaF2 is 1.8 x 10^-7 but what do you mean calculate (Ba^2+) needed to ppt BaSO4 and BaF2? how do you do that? that's the part i dont understand.
April 26, 2010

Chemistry
if an aqueous solution of BA(NO3)2 is added to 1.0 L of a solution containing 0.05 mol F- and 0.075 mol SO4 2-, which salt will precipitate first?
April 26, 2010

math
a^2 + b^2 = c^2 90^2 +b^2 = 150^2 b^2 = 150^2 - 90^2 b = (150^2 - 90^2)^1/2 a number raised to the 1/2 is the same as the sq. route of that number. Just easier to write with the keyboard. b = 120
April 26, 2010

Accounting
In the general journalizations, those funds are entered as cash for the debit, and capitol for the credit
April 26, 2010

Accounting
When the owner of a company invests his personal funds into the business, would it be entered as a credit to his drawings in the Ledger or would it be entered in a new column under the company's revenue?
April 26, 2010

Physics
For voltage variation with length, in using a slide meter, the wire resistance varies linearly with length as Rx = resistivity/Area. Since the voltage and resistance are related with ohm's law, Vx= iRx, the current is the same alog all pts. along the slide wire. The ...
April 26, 2010

math
$33.80 * 2.5% 33.8 * 0.025 = 0.845 = 0.85 $33.80 - $0.85 = $32.95 Depending on where you round.
April 26, 2010

Physics
What is the proof for voltage versus length in the equation V=Cx?
April 26, 2010

Math
Find the common denominator: 2 5/6 = [(2*6)+5]/6 = 17/6 8/3 = 16/6 17/6 - 16/6 = 1/6 Therefore, 1/6 must be added to 8/3 to make 2 5/6.
April 26, 2010

Statistics
12% of voters in a recent election voted on the greens candidate, if 10 people were randomly selected what is the probability that exactly 4 people voted for the green candidate.
April 20, 2010

trig
how do you use doubel-angle formulas to find sin, cos, and tan
April 17, 2010

chemistry
Well, this is a really late post lol. But to find the qcalorimeter, you must use the equation... qcalorimeter = Csp + (delta)T (delta)T is the same as what you used for qwater Csp -> you calculated this earlier in lab. "average heat capacity of the calorimeter" ...
April 6, 2010

accounting
John wants to dissolve his business.His balance sheet shows assets with a value of $250,000 in total. Liabilities are shown at 200,000 leaving equity of $50,000 for John.He only expects to get $180,00,000 for his assets when he sells them because some fixed assets are old and ...
March 30, 2010

computer science
Write a program that will input an item’s wholesale cost and its markup percentage. The program will output the item’s retail price. The program should repeat for several input values. For example, if an item cost is 5.00 and markup is 100%, then the retail price is ...
March 30, 2010

language arts
What is a high shrill sound ending with wh
March 24, 2010

Physics
1. A pair of narrow, parallel slits separated by a distance of 0.408 mm are illuminated by green laser light with wavelength of λ = 537.5 nm. The interference pattern is observed on a screen 1.56 m from the plane of the parallel slits. Calculate the distance from the ...
March 23, 2010

Trig
I'm really having a hard time determining an equation for a pendulum problem. It has to be in the form H(t)=asin[b(t-c)]=d. I've already determined a=25, d=30 and b=pi/14 but I can't figure out how to get c (the phase shift). How do I figure out the phase shift in ...
March 23, 2010

Math
Could someone please help with this question. State the properties of y = 2sec(-2x + 180°) + 3. My answer: First I graphed y = 2sec(-2x + 180°) + 3 in the following way. 1)graph y=sec(x) 2) apply a horizontal compression by a factor of 1/2. 3) apply a vertical ...
March 21, 2010

Math
Thank you very much!
March 16, 2010

Math
Can someone please explain (cos(x)+sin(x))/(cos(x)-sin(x)=sec(2x)+tan(2x). I have no luck with this. Thanks
March 16, 2010

Physics
A small, nonconducting ball of mass m=1.0mg and charge q=2.0*10^-8 C (distributed uniformly through it's volume) hangs from an insulated thread that makes an angle theta = 30 degrees with the vertical, uniformly charged nonconducting sheet. considering the gravitational ...
March 15, 2010

Physics
Damon, I think you made an arithmetic error here: 3.75 m g = 44.5 d^2 - .85 m g 44.5 d^2 = 2.90 m g It should be 44.5d^2 = 4.6 m g Then solve from there, I made that change and got the right answer.
March 13, 2010

Auditing
lool no one will answer all the questions for you over here..google termpapergurus..they will do your hw for you :) its really neat
March 11, 2010

Math
A box has a bottom with one edge 7 times as long as the other. If the box has no top and the volume is fixed at V, what dimensions minimize the surface area? Please help me find the COMPLETE dimenssion of the box.
March 11, 2010

Math
what are the complete dimensions?
March 11, 2010

Math
A box has a bottom with one edge 7 times as long as the other. If the box has no top and the volume is fixed at V, what dimensions minimize the surface area?
March 11, 2010

math
What is the answer to t=100(n+3)? Solving for N.
March 8, 2010

physics
In a daring rescue by helicopter, two men with a combined mass of 172-kg are lifted to safety. (a) If the helicopter lifts the men straight up with constant acceleration, is the tension in the rescue cable greater than, less than, or equal to the combined weight of the men? ...
March 8, 2010

Math
State domain, range, period, vertical asymptotes, zeros, symmetry and y-intercept of y = -2tan(3x + 180°) + 3 I just need to know if there is a formula to find the vertical asymptotes, symmetry, and zeros or do I have to solve it graphically. Thanks.
March 5, 2010

Calculus
How do you take the derivation of the following function and equate to zero? sqrt of (100t^2-320t+400).
March 2, 2010

Physics
1325N
March 1, 2010

science
How does oxygen production relate to the rate of photosynthesis?
February 24, 2010

Earth Science
If the continental crust were thinner than its average thickness of 40 km, would it depress the mantle more or less than it does now? Explain.
February 23, 2010

calculus
Let A(x) be the area of the rectangle inscribed under the curve with vertices at (-x,0) and (x,0), x > 0. a. Find A(1). b. What is the greatest value of A(x)? Justify your answer. c. What is the average value of A(x) on the interval 0 < x < 2?
February 23, 2010

earth
the area around the great lakes was once covered by thick sheets of ice. Use the principal of isostasy to explain how the melting of these ice sheets has effected the land around the lakes?
February 23, 2010

Precalculus
Find dy/dx if y= (6x sqrt(x^3) (-2(cubic root of x+ pie^4).
February 23, 2010

Math
The coordinates of P are (-2,5) the coordinates of Q are (6,1). What is the equation of the perpendicular bisector of PQ? *I was able to figure out that the slope of line PQ is -1/2 and the equation of PQ is -1/2x+4=y
February 21, 2010

Physics
88.2N and UP
February 20, 2010

College physIcs
45
February 19, 2010

computer science
THANKS! but how would I do the second part? "Modify the program so it calculates and displays the amount of money Packaage A customers would save if they purchased Packages B or C, and the amount of money Package B customers would save if they purchased Package C. If ...
February 15, 2010

computer science
I need help with my Java homework! Write a program that calculates a customer's monthly bill. It should ask the user to enter the letter of the package the customer has purchased (A, B, or C) and the number of hours that were used. It should then display the charges. ...
February 15, 2010

computers
Determine the functional dependencies that exist in the following table; then convert this table to an equivalent collection of tables that are in third normal form: Marina, (MarinaNum, Name, (SlipNum, Length, RentalFee, BoatName) ) *Note MarinaNum is underlined
February 15, 2010

Chemistry
Thank you for the help DrBob
February 15, 2010

Chemistry
I don't understand these two questions. Any help on how to figure this would be great. Thanks. 1. Write the equation for the decomposition of the hydrate, MgC*XH₂O 2. Write the equation for the decomposition of the hydrate, CuSO₄*XH₂O.
February 15, 2010

7th grade essay writing
hi i learned how to write essays at colleage who needs help ?
February 15, 2010

math
write this equation in standard form. y=1/2x2+12x-8 y equals one half x squared plus 12x minus 8
February 2, 2010

Math
The directions for this problem is to simplify the equation using like terms. I'm confused. 3(2t-9)-2(5t-3)
January 28, 2010

History
All of the following were reasons for the failure of the People's (Populist) party EXCEPT a.the radical nature of its program alienated non farming interests b.racism strained the coalition of poor White and Black farmers c.the Democratic party co-opted some of the ...
January 25, 2010

Calculus
its proven by the mean value theorum f'(c)=f(b)-f(a)/(b-a)
January 25, 2010

trig
Verify the trigonometric identity: [(1–sin²x)/sin²x]–[(csc²x–1)/cos²x]= -tan²x I still can't figure this out.
January 24, 2010

trig
Verify the trigonometric identity: [(1–sin²x)/sin²x]–[(csc²x–1)/cos²x]= -tan²x I can't figure this out.
January 23, 2010

physics
Vector V1 is 6.4 units long and points along the negative x axis. Vector V2 is 8.9 units long and points at 60 degrees to the positive x axis 1) find x and y components of v1 and v2? 2) find magnitude of the sum v1+v2? 3) find the angle of the sum v1+v2? I found the answers to...
January 20, 2010

calculus
U-Substitution 1. 3x(sin^2((3x^2)+1)cos((3x^2)+1)dx 2. (x^3)(sqrt((3x^2)+1)) dx u = ((3x^2)+1) then?
January 16, 2010

math
isnt the area of a triangle .5bh?
January 16, 2010

accounting
try the termpapergurus..they do you homework for you at a very reasonable price..be sure to check them out
January 14, 2010

math
Thank You SO Much! :)
January 12, 2010

math
Which of the following are true of ordinary whole-life insurance policies? 1. The insured pays premiums on this type of insurance until his death. 2. Ordinary whole life insurance covers the insured for the states term of the policy. 3. The insured only has to pay on this type...
January 12, 2010

math
yeah i dont understand the wording but the diagram shows that each end of the entire rectangular pen is 2x
December 23, 2009

math
A farmer has 1000ft of fence and wishes to enclose the largest possible area that has four individual square pens bordered by a rectangular pen of a different width on each end. what are the overall dimensions of the fence area with maximum square footage? so far i thought i ...
December 23, 2009

AP Government
While political participation through voting in the US remains low compared to other democratic societies, Americans participate in their democracy in other ways. Explain.
December 22, 2009

History of Science
The one about Pascal's Law just gives sites about what it is, and its applications, not what Pascal himself did to discover it, which is what I need.
December 13, 2009

History of Science
Hey, Im doing a paper on Pascal's work in physics, but most of the sites that google gives me concern mostly about his religious life and only briefly talk about his scientific accomplishments. I need help finding a site that gives in depth detail of his experiments with ...
December 13, 2009

Math
match the word with the definition: (A)Personal exemptions (B)Adjustments (C)Tax credits (D)Itemized deductions (1) The amount you may be able to deduct from your adjusted gross income based on how you spent your money during the year. (2) A set amount subracted from your ...
December 10, 2009

Math
match the word with the definition: (A)Personal exemptions (B)Adjustments (C)Tax credits (D)Itemized deductions (1) The amount you may be able to deduct from your adjested gross income based on how you spent your money during the year. (2) A set amount subracted from your ...
December 10, 2009

Math
an eight character password must be six letters of the alphabet (not case-sensitive) followed by a two digit number. how many different addresses of this kind are possible
December 9, 2009

Algebra
Thank you ALan. I will copy the formual to use for another time!
December 7, 2009

Algebra
Find the slope of the line containing the points (-9, 1/2) and (-5, 1/2)
December 7, 2009

Chem
Do my answers look correct for these? Thanks Calculate the mass percent of a solution containing 45.6 grams ethanol (C2H6O) in 245 grams of water. 15.7% You are asked to make 500.0 mL of a 4.5M solution of HCl, but the only HCl you have available to dilute is 18.0M. Describe ...
December 7, 2009

Honors Chemistry 101
Do my answers look correct for these? Thanks Calculate the mass percent of a solution containing 45.6 grams ethanol (C2H6O) in 245 grams of water. 15.7% You are asked to make 500.0 mL of a 4.5M solution of HCl, but the only HCl you have available to dilute is 18.0M. Describe ...
December 7, 2009

Algebra
write an inequality that expresses when you would use a 20% off coupon for $5 off when you spend $20 or more.
December 2, 2009

Algebra
The formula R= -0.75t +385 can be used to predict the world record in the 1500-m run t years after 1930. Determine (in terms of an inequality) those years for which the world record will be less than 3.7 min. Solve for t
November 30, 2009

Algebra
cIc<1020.28 Thanks!
November 30, 2009

Algebra
A metal stays solid at Fahrenheit temp below 1868.5 Determine (in terms of an inequality) those Celsisu temp, for which the metal stays solid. Use the formula F=9/5c+32
November 30, 2009

Algebra
Thank you Ms. Sue.
November 27, 2009

Algebra
A mt. with the base 11,554 feet below sea level rises 18,403 feet. What is the elevation above sea level of its peak? What is the elevation of the mt's peak?
November 27, 2009

math
Marcus and Allen are playing Rock/Paper/Scissors. The first one to win 10 times does not have to do the dishes. The score is now 9 to 7 in favor of Marcus. If ties are ignored and not counted, what is the probabilty Marcus will not have to do the dishes?
November 19, 2009

math- odds
thanks that helps!
November 13, 2009

math- odds
A bag contains 13 balls numbered 1 through 13. What are the odds in favor of selecting a ball that has an even number? Explain why?
November 13, 2009

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