Tuesday

October 25, 2016
Total # Posts: 2,329

**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 don't 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 don't 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*

**geometry**

Cool, thanks!

*November 12, 2009*

**geometry**

Two corresponding sides of similar polygons are in the ratio of 2 : 7. If the area of the smaller figure is 8 square meters, what is the area of the larger figure?

*November 12, 2009*

**Calculus**

Sketch the graph of a function that is continuous at x=5 but not differentiable at x=5.

*November 10, 2009*