Most popular questions and responses by Cyn
  1. history

    how does novikov describe the united states ?what evidence does he use to support his description

    asked on May 3, 2016
  2. MATH - solving exponential equations

    The half-life of sodium-24 is 14.9 hours. A hospital buys a 40 mg sample of sodium-24. a) How many grams, to the nearest tenth, of sodium-21 will remain after 48 h? b) After how long will only 2.5 mg remain? I don't know how to write the exponential

    asked on December 1, 2009
  3. math

    the product of two whole number is 65 what is the sum of the two number

    asked on February 29, 2016
  4. physics

    Calculate the force of gravity on a spacecraft 12800 km above the earth's surface if its mass is 700 kg.

    asked on December 6, 2009
  5. Chemistry

    7.77 g of rush (an oxide of iron) is heated until all the O2 atoms combine with charcoal. When this is done, a pellet of pure iron with a mass of 5.44 g remains. What is the empirical forumla for rust?

    asked on November 15, 2009
  6. Movement and Music

    Can you please check my semester exam before I turn it in? 1. Children who do poorly in school are primarily ______ learners. a. Auditory b. Kinesthetic c. Spatial d. visual My answer: c 2. A movement program that emphasized divergent problem solving,

    asked on February 7, 2013
  7. and more math. :)

    Given (1/logy 4) = (log1/4 1/8x), express y as a polynomial function of x. State the restrictions on x and y.

    asked on December 14, 2009
  8. algebra

    The maximum speed allowed on Main St is 25mph Define a variable & write and inequality. Also graph the solution.

    asked on November 5, 2017
  9. Chemistry- help

    1) How do I calculate what the mass would be for the flask containing water and alkaseltzer if: -mass of flask and the 10ml of water equals 150.23g -mass of alkaselzer equals 0.65g Calculate the mass of the carbon dioxide gas if: -mass of flask , water ,

    asked on September 11, 2012
  10. Math 12

    In a geometric series S4 = 64 and r = -2/3. The first term in the sequence is? Thanks for your help!

    asked on January 7, 2010
  11. college algebra

    find the x-intercept and the y-intercept for f(x)=16x^+24x+9 type in ordered pair

    asked on August 1, 2010
  12. college algebra

    The number of tickets sold each day for an upcoming performance of Handel's Messiah is given by N(x)=-0.4x^2+12x+10, where x is the number of days since the concert was first announced. When will daily ticket sales peak and how many tickets will be sold

    asked on July 31, 2010
  13. college

    Hint: Pay attention to the units of measure. You may have to convert from feet to miles several times in this assignment. You can use 1 mile = 5,280 feet for your conversions. 1. Many people know that the weight of an object varies on different planets,

    asked on July 15, 2010
  14. biology

    What would happen to your cells if they made a poisonous chemical?

    asked on January 4, 2010
  15. MATH - logarithms

    solve for x. 485 * 5^x+2 = 12^2x-1

    asked on December 3, 2009
  16. statistics

    this is a problem in my statistics class, and I am lost to me, it is confusing or missing something here is the problem please help grade points are assignede as follows: a=4,b=3,c=2,d=1,f=0. grades are weighted according to credit hours. if a student

    asked on February 10, 2013
  17. statistics

    Twenty (20) students randomly assigned to an experimental group are studying for a test while listening to classical music. Thirty (30) students randomly assigned to a Control group are studying for the same test in complete silence. Both groups take the

    asked on May 3, 2011
  18. math

    To train for a triathlon Cartman swims 125m daily for one week.Each subsequent week he doubles the daily amount until he swims 4km each day for one week. The total distance he has swam is? What is the equation for this,since he doubles every week

    asked on January 9, 2010
  19. MATH

    Solve: (log2 8)^x - (log9 3)^x+1 = 0

    asked on December 13, 2009
  20. science - biology

    If our cells and body fluids are hypertonic to the water of a swimming pool, then why do we not swell and pop when we go for a swim?

    asked on December 2, 2009
  21. Movement & Music

    Children who do poorly in school are primarily ________ learners. a. auditory b. kinesthetic c. spatial d. visual I think C is correct..

    asked on January 31, 2013
  22. Math

    (√ 10 +3)(√ 10 - 3) When I multiply the √ 10's what would it come out to be? That's what throws me off >_

    asked on May 7, 2012
  23. math

    A supersoaker water pistol can hold up to 4 litres of water. If each shot uses 11/12 of amount of water of its previous shot, the amount of water fired by a fully loaded supersoaker's first shot is? x/4000ml=11/12 x=3666.7mL why is the answer 333mL?

    asked on January 9, 2010
  24. math againnn!

    Solve for x: 2log(3-x) = log2 + log(22-2x)

    asked on December 13, 2009
  25. math

    Given the !@#$%^&tion y = log3(x+3)+2, calculate the zero of the function. GIve an exact answer.

    asked on December 12, 2009
  26. Movement & Music

    A movemnt program that emphasizes divergent prolem solving, discovery, and self-expression to foster creativity utilizes the _______ teaching method. a. command instruction b. direct instruction c. exploration d. guided discovery I chose D...

    asked on January 31, 2013
  27. statistics

    entify the data set's level of measurement. gender profile of the 111th congress average january snowfall for 15 cities

    asked on January 30, 2013
  28. English

    How would you make this sentence into a parrell sentence. One gypsy explained that telling fortunes was less about helping others' lives than to make his own living.

    asked on September 12, 2010
  29. math

    Determine the inverse of f(x)=(x^3)-2 Is the inverse the switch of coordinates between x and y or is it 1 over the whole equation?

    asked on January 9, 2010
  30. MATH!

    determine all the values of x, such that (x^2-15)^x^2-4 = 1.

    asked on December 10, 2009
  31. math - logs

    if logx3 = a and logx25 = b, determine an expression for logx(9/5).

    asked on December 10, 2009
  32. math

    An amount of money is invested at 12%/a interest. Write an equation and solve it to determine the length of time it will take for the original amouunt to double if the interest is compounded annually.

    asked on December 3, 2009
  33. Physics

    When an object slides over a smooth horizontal surface, how does the force of friction depend on the force of gravity on the object?

    asked on November 17, 2009
  34. geometry

    The sum of the diameter of 2 circles is 28". Once circle has a diameter that is 8" longer. What are the diameters of each circle?

    asked on June 2, 2014
  35. Alg2

    Find the value of c that will make the expression x^2-15x+c a perfect square. would c = 56.25 ?

    asked on May 7, 2012
  36. college math


    asked on August 5, 2010
  37. bio

    Why do enzymatic reactions proceed slowly at 0°C?

    asked on January 8, 2010
  38. Math

    Solve. |3w-1| = |3w| or abs(3w-1) - abs(3w) I know you can use a calculator and find the answer easily, but we're supposed to know how to do this without a calculator.

    asked on March 5, 2009
  39. Finance

    If our company's bank loan has a 12 interest rate, what is our effective, after-tax interest cost? Assume the tax rate = 38% If our preferred stock is paying a contractual $1.85 annual dividend and has current market price of $13.50, what is our cost of

    asked on July 17, 2007
  40. finance

    If our company's bank loan has a 12 interest rate, what is our effective, after-tax interest cost? Assume the tax rate = 38% If our preferred stock is paying a contractual $1.85 annual dividend and has current market price of $13.50, what is our cost of

    asked on July 17, 2007
  41. calculus

    integrate 2/((2x-7)^2) from x=4 to 6

    asked on June 24, 2011
  42. math

    solve: log base2(log basex(x+6)=1 There's 2 different bases, how do I solve for x?

    asked on January 9, 2010
  43. Physics

    Another one, sorry! =P This stuff is really confusing.. Why doesn't friction depend on surface area?

    asked on November 17, 2009
  1. health

    Joe Reseacher asks for access to patient records as part of a research project.What should the health information manager do?

    posted on May 8, 2011
  2. college

    What formula do I need to use to solve for r

    posted on July 15, 2010
  3. MATH


    posted on February 4, 2010
  4. MATH

    ^(x+1) my bad =]

    posted on December 13, 2009
  5. MATH - logarithms

    is ln the same as log? and is its ln485 + or ln485 * ?

    posted on December 3, 2009
  6. Functions

    a) 3(2)^2 - 8(2) = 6^2 - 16 = 36-16 = 20 b) 3(-3)^2-8(-3) = -9^2 - (-24) = 81 + 24 = 105

    posted on November 17, 2009
  7. math

    if you're trying to solve for b, isolate b. b = 5*8 b = 40

    posted on November 17, 2009
  8. Chemistry

    OH, i understand now, 7.77 is the combination of iron and oxygen.. whereas 5.44 is just iron, so therefore to find the mass of the oxygen, you minus the two.. thank you so much!

    posted on November 15, 2009
  9. Chemistry

    Thank you! I don't get one part though, to find the mass of the oxygen, why did you minus 5.44 and 7.77?

    posted on November 15, 2009
  10. Algebra

    the answer should be 8/7 when you are dividing expressions with exponents of the same letter, you just subtract the exponents so 3 - 3 = 0, therefore there would be no more t. so 16/14 simplifies to 8/7

    posted on March 5, 2009
  11. Math

    after you get 3x(x^2-2x-8), look at what is in the parenthesis. x^2-2x-8 what are 2 numbers that add to the constant, 8? at the same time, these 2 numbers must equal -2 the two numbers should be -4 and 2 so the final answer would be.. 3x(x-4)(x+2) hope

    posted on March 5, 2009
  12. Grade 8 science

    I remember in grade 8, we studied cells and we examined cork under a microscope. Corks contain cells, but is a non-living object.

    posted on March 5, 2009