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David

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Questions (1,309)

Calculate the pH of 0.005moldm-3 tetraoxosulphate(VI)
1. 7 answers
2. asked by David
3. 3,027 views
A boy walks 60m on a bearing of 035° and then 300m due east .How far is he from his starting point
1. 6 answers
2. 404 views
Find the simple interest on 280naire for two and half years at 3% per annum
1. 1 answer
2. 383 views
What is the answer to the brainteaser NOMMAG
1. 4 answers
2. 1,361 views
Lucy's hockey team sells candy bars at 2$ each. It costs the team 50 cents to purchase each bar, with a fixed shipping cost of
1. 4 answers
2. 747 views
A rooming house has three rooms that contains four beds, three beds and two beds respectively. In how many ways can nine quests
1. 5 answers
2. 3,676 views
Simplify the expression 6P3.I don't know how to solve it so if you could help me with it as well i would really appreciate it.
1. 5 answers
2. 2,803 views
1. You have been given a sample of unknown molarity. Calculate the molarity of a solution which has been prepared by dissolving
1. 4 answers
2. 3,174 views
1. You have been given a sample of unknown molarity. Calculate the molarity of a solution which has been prepared by dissolving
1. 3 answers
2. 1,677 views
express the ratio 20cm to 15m in the form 1:n
1. 7 answers
2. 2,177 views
A right triangle has one angle that measures 16 degrees. What are the measures of the other two angles?
1. 5 answers
2. 1,105 views
A particle is moving at 0.75c relative to a lab on Earth. By what percentage is the Newtonian expression for its momentumin
1. 4 answers
2. 2,094 views
The height in metres of the water in a harbour is given approximately by the formula d=6+3cos30t, where t is the time in hours
1. 5 answers
2. 1,504 views
Two number cubes are rolled- one blue and one yellow. Find the probability that the blue cube is less than 3 and the product is
1. 4 answers
2. 2,662 views
Finddy/dt at x = 1 and y = x2 + 3 if dx/dt = 4 I'm not sure how to set up this type of equation. Do you use the pythagorem
1. 4 answers
2. 4,749 views
How do you find movable do? i need to solfege songs in different keys and i need to know how!Add sharps and flats to make it
1. 1 answer
2. 782 views
When light travels from air to glass, which one of the following is not dependent on the index of refraction of the glass?A- The
1. 1 answer
2. 816 views
This info is ment for the next two questions...which I don't get..can u help?Information given: In the table below, the time, in
1. 1 answer
2. 531 views
Hey...can u check my two answers for a and b and can u help on the rest?8. An electrolytic cell consisting of an aqueous
1. 1 answer
2. 607 views
Hey...how r u guys..thanks for helping me on my previous questions...can u help me solve two questions and check one? Thanks,
1. 1 answer
2. 931 views
1) Write 2^2 * 3 * 5 as a natural number? I get 60 is it right or should i put 4*3*5= 602) Write 420 as the product of its prime
1. 1 answer
2. 480 views
Express the following quantities as an ordinary decimal number:a) The sun has a diameter of 1.392 * 10^6 I get 1392000. b)
1. 1 answer
2. 640 views
Hey can u guys help on this lab, I don't get it.I have to figure out the: prediction, Analysis, and evaluation. Problem: what is
1. 1 answer
2. 508 views
PLease check this. They are fill in the blank and I just need to know if they are right. Thanks!9. Compared to a strong
1. 1 answer
2. 685 views
Hi, I am asked to do this:12. A buffer solution containing HBO32 –(aq) and BO33 –(aq) ions is used to standardize pH meters
1. 1 answer
2. 691 views
Hi everybody,Can anybody show me how to convert 0.59375(decimal) to Octal and Hexadecimal? go to wikpediaa and look up
1. 3 answers
2. 1,404 views
Can anyone provide examples of when we would write to inform, request or persuade, or build goodwill in the business world?You
1. 1 answer
2. 770 views
Hi, I have a project which requires us to "contrast the key traditional roles played by drums in English and Nishnabe cultures.
1. 1 answer
2. 521 views
What are the names of the seven isomers of C4H10O?A = t-butyl alcohol (2-methyl-2-propanol) B = sec-butyl alcohol (2-butanol) C
1. 1 answer
2. 974 views
how do i minimize this function.21L + (2600/L) Set the derivative equal to zero and solve for L. 21 - 2600/L^2 = 0 2600 = 21 L^2
1. 1 answer
2. 523 views
I have to write a detailed description of HARMONY,DISSONANCE + COUNTER MELODY.please help i don't know what to write Try the
1. 1 answer
2. 602 views
I have to write a detailed description of HARMONY,DISSONANCE + COUNTER MELODY.please help i don't know what to write Here are
1. 1 answer
2. 482 views
If you pick a card at random from a well shuffled deck, what is the probability that you get a face card or a spade?a) 3/26 is
1. 1 answer
2. 914 views
Suppose the marginal revenue (in dollars) from the sale of x jet planes is R'(x)=2x(x^2+50)^2A. Find the total revenue function
1. 1 answer
2. 696 views
Find probability of getting outcome of heads and a five when a coin is tossed and a single die is rolled.= .50 for coin toss .17
1. 1 answer
2. 441 views
Please help me figure them out.1. In the 105th Congress, the Senate consist of 55 Republicans and 45 Democrats. If a committee
1. 1 answer
2. 547 views
Where can I find a site to translate German?
1. 2 answers
2. 841 views
By mass, most of human body is composed of what?nitrogen carbon water hydrogen I think the answer is water. Am I correct?
1. 1 answer
2. 530 views
In comparing the British and Americansystems of government,which statement is true: A. Britain's government was created by a
1. 1 answer
2. 1,196 views
What steps do you think can be taken to reduce the harmful effects of human activities on biogeochemical cycles? Which
1. 1 answer
2. 542 views
Driving down a mounain Jim finds that he has descended 1800FT in elevation by the time he is 3.25 mi horizontally away from the
1. 1 answer
2. 439 views
In planning a new item, a manufactuer assumes that the number of items produced x and the cost of dollars C of producing these
1. 1 answer
2. 537 views
x2 + x + -3.75 = 0Please... I'm horrible at algebra. x=7.5 and x=-8.5 THANK YOU SO MUCH
1. 1 answer
2. 376 views
Sodium cyanide, empirical formula NaCN, is a solid which melts at 564 degrees C to give a liquid that conducts electricity. it
1. 1 answer
2. 723 views
Calculate the molality of HCl in an aqueous 12M HCl solution that has a density of 1.20g/mL
1. 3 answers
2. 625 views
A passenger on a train traveling 90km/h on a straight, level track notes that it takes another train (180 m long and moving with
1. 3 answers
2. 1,251 views
Put a pencil straight down into a glass of water. Notice whether the pencil looks bent. Now tilt the pencil and note how its
1. 1 answer
2. 675 views
can you please help me paraphrase this paragraph.The eradication of al-Qaeda is as much an intelligence and law enforcement
1. 1 answer
2. 416 views
How would paying out a $2 million cash dividend affect cash and net working capital?It seems to me that paying out a $2 million
1. 1 answer
2. 922 views
How might borrowing $1 million long-term and investing the proceeds in inventory affect cash and net working capital?Borrowing
1. 1 answer
2. 409 views
How do you arrive at the answer for:what is the value of t in the following problem? 9 = t + 7s subtract 7s from both sides.
1. 1 answer
2. 342 views
What is an example of present value concept?If you win the lottery, and they tell you will get 20,000 a year for 30 years. What
1. 1 answer
2. 951 views
I need help with the following problem:Directions: Express each answer in simplest form in terms of the given variable. Problem:
1. 1 answer
2. 509 views
searching for evidence in the novel Being There by Kosinski that the author dislikes humans and Americans
1. 1 answer
2. 336 views
I need to know how to make conversions and compare within the metric system of measurement. Such as 0.75L. is equal to how many
1. 4 answers
2. 1,089 views
Why are racial imbalances in our economy difficult to overcome?
1. 1 answer
2. 357 views
What are some solutions the the economic challenges of Aferican Americans?
1. 5 answers
2. 308 views
The summ of two numbers is two. THe difference between eight and twice the smaller number is two less than four times the
1. 5 answers
2. 831 views
Can anyone provide help with finding a site that shows how American pop culture has influenced art throughout the world?
1. 1 answer
2. 452 views
I have to show that for any (pi)A, Sin(A)squared + Cos(A)squared = 1.I don't really get the question... am I supposed to
1. 3 answers
2. 513 views
The question is, if f(x) is equal to the series from n to infinity of a sub n times (x-7)^n for all n, find a formula for a sub
1. 3 answers
2. 505 views
Metallic sodium adopts a body-centered cubic structure at 25 degrees C and 1 atm. The density of sodium under these conditions
1. 4 answers
2. 681 views
A 15.0g sample of liquid ethanol, C2H5OH, absorbs 5.13x10^3 J of heat at its normal boiling point, 78.0C. The molar enthalpy of
1. 3 answers
2. 866 views
The brakes on a car permit it to decelerate at the rate of -8.0m/s^2. How much distance is required to stop this car when it is
1. 3 answers
2. 1,028 views
Can I use P1/P2=(T1/T2)y/y-1 to find the temperature when we pressure liquid refrigerant, for example liquid propane?
1. 1 answer
2. 352 views
In running a regression model with three variables, two of the three come back as statistically significant at the 95% level of
1. 1 answer
2. 352 views
A 19 m long piece of wire of density 8.34 g/m3has a diameter of 12.593 mm. The resistiv- ity of the wire is 1.7e-8(ohm)(m) at 20
1. 2 answers
2. 602 views
What architectural wonder was completed in 1648?
1. 3 answers
2. 510 views
What is the climatic issue that significantly influences the Indian subcontinent?
1. 1 answer
2. 381 views
of Hindusim and Buddhism which has a definite indentifiable start?
1. 3 answers
2. 333 views
How did the extinction of the Mesozoic marine megafauna allow evolution of cetaceans?
1. 3 answers
2. 917 views
What are the steps and timing of the whales, dolphins, porpoises evolution.
1. 1 answer
2. 315 views
I think it's a, but document formatting messes me up a little :) Any help would be great, and much appericatedWhen citing a
1. 1 answer
2. 455 views
I think it's C. Am I right?When using APA, which of the following describes the method in which a work without page numbers
1. 1 answer
2. 513 views
I have 3 questions, and I cannot find method that actually solves them.1) Integral [(4s+4)/([s^2+1]*([S-1]^3))] 2) Integral [
1. 4 answers
2. 595 views
I have 3 questions, and I cannot find method that actually solves them.1) Integral [(4s+4)/([s^2+1]*([S-1]^3))] 2) Integral [
1. 7 answers
2. 867 views
I've set a problem up, something like this.s^4: A+D=0 s^3: -2A+B-3D+E=0 s^2: 2A-B+C+3D-3E=0 s^1: -2A+B-D+3E=4 s^0: A+C-E=4
1. 5 answers
2. 321 views
I made this question, just wanted to make sure it didn't drown under the tide...I've set a problem up, something like this. s^4:
1. 4 answers
2. 390 views
I made this question, just wanted to make sure it didn't drown under the tide...I've set a problem up, something like this. s^4:
1. 3 answers
2. 497 views
ACON lTD ACQUIRES THE ASSETS AND ASSUMES THE LIABILITIES OF BIRD LTD WHICH HAVE OPEN MARKET VALUES OF AAssets $120,000
1. 1 answer
2. 673 views
What does the density potential (also known as the electrostatic potential) measure? What dothe colors on the images indicate?
1. 1 answer
2. 413 views
Because solution pH is a measurement of either [H3O+] or [-OH] concentration, the acidic orbasic nature of the acids and bases
1. 1 answer
2. 1,069 views
H2 + H2O ->??
1. 3 answers
2. 447 views
For the following balanced equation:2Ag+(aq) + Cu(s)<->Cu2+ (aq) + 2 Ag(s) Which letter corresponds to the correct cell notation
1. 3 answers
2. 1,118 views
For the following electrochemical cell:Fe(s) | Fe2+(aq) || MnO4–(aq), Mn2+(aq) | Pt(s) Which letter corresponds to the correct
1. 2 answers
2. 671 views
During a short circuit, why does the voltage go down?I know that the resistance is almost zero...but what's the relation between
1. 3 answers
2. 445 views
img59.imageshack.us/img59/4912/dsc00716qy7.jpg
1. 1 answer
2. 822 views
Can someone show me all the combinations possible with these thingsA B X Y LB RB LT RT L R U D
1. 1 answer
2. 436 views
Simplify this problem:(1/2m^4n^5)^2
1. 3 answers
2. 385 views
Simplify:24w^7t^4/6w^9t^2 And How Exactly do u do this? I got 4w^16t^6
1. 1 answer
2. 368 views
Simplify:(n/4)/(n/m) As my answer I got: 4m Is this response correct? If not, please let me know what I did wrong.
1. 4 answers
2. 364 views
I'm totally stuck on this problem!!Simplify: (2a^2+13a-7/3a^3-27a)(4a^2-1/9a^2)
1. 4 answers
2. 449 views
No,I'm sure the problem is written like this: [(3a^3-27a)/(2a^2+13a-7)]/[9a^2/4a^2-1)] And to divide you multiply by the
1. 1 answer
2. 515 views
What part of speech is the word "Below" used in the following sentence.Below the main level, we have a large playroom.
1. 3 answers
2. 368 views
During a recrystalliztion experiment, a student allows the hot solution tocool to room temperature, then chills the solution in
1. 2 answers
2. 524 views
Explain whether or not each of the following pairs of solvents might be useful as a solvent pair for recrystallization.(a)
1. 5 answers
2. 718 views
explain how the rate of crystal growth can affect the purity of a recrystallized compound
1. 2 answers
2. 581 views
explain how the rate of crystal growth can affect the purity of a recrystallized compound
1. 4 answers
2. 4,516 views
Let f(x) = 1/(x+7)+15/(x-8). Find all a for which f(a)=f(a+15).How do I solve this problem?
1. 3 answers
2. 253 views
Let f(x) = 1/(x+7)+15/(x-8). Find all a for which f(a)=f(a+15).How do I solve this problem? I understand this so far
1. 2 answers
2. 677 views

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