Saturday
July 26, 2014

Posts by Matt


Total # Posts: 1,729

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.

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.

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.

algebra
X^2-2X-1 is the complete answer see site above for example

algebra
4x^3-5x^2-10x-3 divided by 4x+3

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

Chemistry
74.38L

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

english
can fear be the mood of an essay iff not can you give me examples of the mood of an essay

word study
ship is to trip as shout is to

chemistry
How do you make a 100mL solution of 1.50 M of NaCl.

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

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?

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 ...

chemistry
how to make a 100 mL solutino of 1.50M of NaCl

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 t...

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 se...

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 se...

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 se...

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.

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.

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?

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

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

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?

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 curren...

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

Physics
What is the proof for voltage versus length in the equation V=Cx?

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.

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.

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

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" Ho...

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 ...

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 ...

language arts
What is a high shrill sound ending with wh

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 cent...

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 ...

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 expansio...

Math
Thank you very much!

Math
Thank you very much!

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

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 fo...

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.

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

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.

Math
what are the complete dimensions?

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?

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

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? Ex...

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.

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

Physics
1325N

science
How does oxygen production relate to the rate of photosynthesis?

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.

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?

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?

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

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

Physics
88.2N and UP

College physIcs
45

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 ther...

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. Modif...

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

Chemistry
Thank you for the help DrBob

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.

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

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

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

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 Populis...

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

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

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

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...

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?

math
isnt the area of a triangle .5bh?

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

math
Thank You SO Much! :)

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...

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

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 c...

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.

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.

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 t...

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 adju...

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 adju...

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

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

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

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 h...

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 h...

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

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

Algebra
cIc<1020.28 Thanks!

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

Algebra
Thank you Ms. Sue.

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?

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?

math- odds
thanks that helps!

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?

geometry
Cool, thanks!

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