Questions Asked on
July 16, 2007

MATH HELP PLZ
in RIGHT triangle abc the radian measure of angle c is pi/6, what is the length of bc? ab = 2 i was thinking of taking the sin of pi/6 since bc is the y axis. but it does not match the answer of 2 root 3 I would have to know where the right angle is. You
asked by tushar 
science(chem)
What is Zimmerman Reagent made of? (I know it is acidic b/c I was told after it burned a hole in my jeans) acid? You must mean ZimmermannReinhardt reagent (79 g MnSO4, 100 mL of concentrated H2SO4, and 200 mL of concentrated H3PO4, diluted to 1 L)
asked by christina 
chem 2
what is the mass of F in grams in 24.6 grams of SnF2? Convert 24.6 g SnF2 to mols SnF2. Convert mols SnF2 to mols F atoms. Convert mols F atoms to grams F atoms. 24.6 g SnF2*(1 mol SnF2/molar mass SnF2)*(2 mols F/1 mol SnF2)*(atomic mass F/1 mol F Atoms) =
asked by christine 
Marketing Management
As a market researcher for a cable television company seeking to determine the number of multidwelling buildings in a selected neighborhood, your best chance of acquiring this information quickly would be a. census information available on the Internet.
asked by Shirelyn 
Science 10
A person hits a 45g golf ball. The ball comes down on a tree root and bounces straight up with an initial speed of 14.0 m/s. Determine the height the ball will rise after the bounce The equation is height= 1/2 velocity^2 / g where g is 9.8m/s^2
asked by Caitlin 
math
A rock is thrown vertically up from the ground with a velocity of 24 meters per second, and it reaches a height of 2+24t4.9tsquare after t secounds. A. How many seconds after the rock is thrown will it reach its maximum height? B.What is the maximum
asked by Tashanna 
pls help w/t math ?
in a right triangle ABC, if ab is 14 and bc is 12 wut is bd? there is a pic of a large trangle abc and in it is a line drawn down angle c making it line cd. angle acd then becomes a right trangle as well. i tried working = proportions and pyth thm but i
asked by shawna 
MATH, HELP
what is the probability that at least 2 students in a class of 36 have the same birthday? Do i punch this in to the calculator or how did you found this way or method for your solution: Log(365!) = 1792.3316 Log(329!) = 1581.7202 36 Log(365) = 212.3963 And
asked by student 
math (trig)
Prove: sin^2(x/2) = csc^2x  cot^2x / 2csc^2(x) + 2csc(x)cot(x) On the right, factor the numberator as a difference of two perfect squares. In the denominator, factor out 2cscx. You ought to prodeed rather quickly to the proof.
asked by aziiancaligirl 
finance
Smart, sophisticated investors don't usually put much money in mutual funds. Some buy on margin and borrow from their brokers. Investment advisors usually appeal to less sophisticated investors. Breadth of market shows which stocks are advancing and which
asked by Ms. Sue 
Early Child Ed.
Would you please check my questions and answers and let me know the ones I have wrong? 1. Familyfocused early education of exceptional children encourages: A. families to be partners in decisionmaking. B. families to make all the decisions about their
asked by Tamera 
algebra 1 I NEED HELP!!
the bottom of a 25foot ladder is placed 7 feet from a wall. How far will the ladder reach up? Since the ladder, wall, and ground form a right triangle, you can use this formula: A squared + B squared = C squared A = 7 feet C = 25 feet B = distance the
asked by andrea 
science(chem)
For an example of charge balance in my text it says Write a charge balance eqzn for an aqueous sol that contains NaCl, Ba(ClO4)2, & Al2(SO4)3 The answer given is: [Na+] + [H30+] + 2[Ba+] + 3[Al3+]= [ClO4] + [NO3] + 2[SO42] + [HSO4] + [OH] I know that
asked by christina 
chem
how many grams of sulfur are needed to react w/ 246 grams of mercury to form HgS? Hg + S ==> HgS unless your instructor insists on writing S as S8, in which case it will be 8Hg + S8 ==> 8HgS. The answer will be the same no matter which way the equation is
asked by christine 
American Government
These ?'s are true/false and the ones that are false I have to fill in the correct word. Can you check my answers? 1) The powerful but unofficial post of the "president of the Senate" involves steering floor action to a party's benefit.  I say this is
asked by Grace 
written communication
what kinds of unwanted reactions might you get from readers of your messages? What steps would you take to ensure that the purpose of your message (whether informative, negative, or persuasive ) is converyed to your readers? I can think of several unwanted
asked by dee 
Biology
I'm having some trouble on these questions and I was wondering if I could have some help/be pointed in the right direction. 1. Which of the following about Protists is FALSE? a) They are prokaryotes b) The animallike protists are the protozoans c) The
asked by Kasey 
math
Graph the following equations; calculate the slope, xintercept, and yintercept, and label the intercepts on the graph. 1. A temperature of 41 degrees F is equivalent to 278.2 degrees K, while a temperature of 86 degrees F is equivalent to 303.2 degrees
asked by lisa 
introductory algebra
Could anyone help me to slove these problems. 1. (x/(x^2100))9x(x+10)/(x+3)) 2. (x/x^2100))/(9x(x+10)/(9x(x+10)/(x+3)) 3. What is the least common multiple of the expressions: 2x,x^3,(x+1),(x+1)^2,(x9) 4.(2y/x^2)+(7/x(x3)) 5.(2y/x^2)(7/x(x3))
asked by Travell 
Chemistry
In chemistry, how is a monomer related to a polymer? Think of a chain: Each link is a monometer, as the links are joined, you have a chain which represents the polymer.
asked by Winry 
persuasive letter (IGNORE PREVIOUSThis 1 is FINAL
This one is updated one. I am sorry for trouble. I have to write to Expedia for their mistake on reserving my car rental at LA. I want a free car rental voucher.  Tajinder Singh 392 Hinter Wayne Drive, Nashville, TN 52312
asked by singh 
Chemistry
Hello everybody, I'm having difficulty understanding the rationalization behind the strengths of Bronstend Lowry acids and bases and my textbook isn't too helpful. Can someone please expalin to me: (1) What exactly is effective negative charge density? (2)
asked by John Peterson 
finance
#18 Analysts following what the smart, sophisticated investor is doing would examine 
asked by KATHY 
astronomy
when earth and mars are closest to each other in their orbits the angular separation between mars's moon phobos and the surface of mars is observed to be 22 arc seconds. if phobos orbits mars every .31910 days what is the average density of mars expresses
asked by jessica 
algebra 2
solve the inequality: 3(r11)+15> 9 _ this is as far as Ive gotten. 3r+33+15> 9 _ subtract 33, subtract 15 from each side. Now when you divide by 3, you have to reverse the inequality sign. Your answer will be r
asked by erin 
MATH
I'M HAVING A PROBLEM WITH THIS PROBLEM,IT SAY'S FIND THE MISSING NUMBER HERE IS AN EXAMPLE PROBLEM, _ + 7 + 7 = 8 ,I NEED HELP WITH THAT . First: + 7 + 7 = 0 ___ + 0 = 8 Do you see what the answer is now? WHAT MISSING NUMBER GO IN THAT SPACE,I DON'T
asked by TREVIA 
celebraties
How old is Linsey Lohan I typed Lindsay Lohan biography into the Google.com search box. This is the first site and has her birthdate on the first screen. http://www.netglimse.com/celebs/pages/lindsay_lohan/
asked by Caitlyn 
linear algebra
show that if u (dot) v = 0 for all vectors v, then u = 0. One of the Axioms an inner product has to satisfy is: x dot x >=0 where equality only holds if x = 0 So, in your problem you take the special case v = u. Then: u dot u = 0 > u = 0
asked by chris 
measuring
how much is 6 cups to pounds.... That depends upon whether you're measuring something heavy, like lead pellets, or light, like feathers. Volume measures (cups) don't have equivalent weight (pounds) measurements. If you're measuring a food (apples, peaches,
asked by student 
Medical
What Does C C C_ C C mean in Brain Teasers?
asked by Deanna