Carolina

Most popular questions and responses by Carolina
  1. Math I need help ASAP!

    1. which of the following is true of a random sample? a. it is the only way to sample a population. b. each member of the sample is a volunteer. c. it is always the easiest way to sample a population. d. each member of the population has an equal chance of

    asked on May 27, 2015
  2. Math

    Three times as many children as adults attend a concert on Saturday. An adult's ticket cost $7 and a child's ticket cost $3. The theater collected a total of $6,000. How many people bought tickets?

    asked on April 26, 2011
  3. physics

    A student throws a set of keys vertically upward to his fraternity brother, who is in a window 3.95 m above. The brother's outstretched hand catches the keys 1.80 s later. (a) With what initial velocity were the keys thrown?

    asked on September 16, 2011
  4. phyisics

    an orangutan throws a coconut vertically upward at the foot of a clif 40 m high while his mate simulaneously drops another coconut from the top of the clif. the two coconuts collide at an altitude of 20 m what is the initial velocity of the coconut that

    asked on October 12, 2009
  5. math

    A square with side length 5.5 mm is increased by a factor of 11. What will be the perimeter of the square after dilation?

    asked on July 5, 2019
  6. Math

    A cookie recipe called for a half cup of chocolate chips per 3 dozen cookies. How many cups of chocolate chips should be used for 10 dozen cookies?

    asked on September 7, 2016
  7. Math

    4 ^ (3x–1) = 1.5625 × 10 ^(–2)

    asked on October 2, 2012
  8. Chemistry

    Magnesium metal reacts with HCl solution, liberating H2 gas and generating Mg2+ cations in solution. A 2.970-g sample of Mg metal is added to 50.0 mL of a 4.00 M HCl solution, and the reaction goes to completion. How many grams of H2 are formed?

    asked on September 13, 2011
  9. mba business reserach methods

    Sampling A manufacturing company's quality control personnel have recorded the proportion of defective items for each of 500 monthly shipments of one of the computer components that the company produces. See data below. The company doesn't have time to

    asked on March 20, 2011
  10. english

    children insulted palmer ans sometimes threw stones at him. Grown men hurled rocks though the windows of his house. Even the local minister _______(e)d palmer, telling the congregation that palmer admired only himself. One day, four men carrying scissors

    asked on January 12, 2016
  11. CST GEOMETRY

    a tree is situated on level ground from a point 135 feet from the base of the tree the measure of the angle of elevation from the ground to the top of the tree is 43 degrees which is the height of the tree to the nearest foot?

    asked on March 25, 2013
  12. Geometry

    Two secants are drawn to a circle from an external point. The external secant length on the first secant is 12 and the internal segment length is 3x +1. The external secant length on the second secant is 15 and the two internal segment length is 3x-1.

    asked on May 29, 2011
  13. 3rd grade

    hundred chart to subtract 12 from 46

    asked on September 15, 2010
  14. Chemistry

    Write net ionic equations for these reactions : Cu^2+ + Fe -> Hg^2+ + Fe-> Fe^3+ +Fe-> Pb^2+ +Fe-> Ag^+ + Fe-> and then the same but instead of Fe, addition of Cu to the six solution that I wrote before.. What ions are reacting in each case? please help me

    asked on May 9, 2010
  15. calculus

    how do not understand how to find a deriviative of this function?Do i use chain rule and product rule? r= the square root of (theta*sin*theta)

    asked on October 18, 2009
  16. Calc--derivatives

    find the der of y= x^(lnx) thanks

    asked on October 13, 2009
  17. math (factoring)

    how do i factor: 4q² - 9r² ??

    asked on February 21, 2009
  18. math

    solve the equation Ig(x+14)-Ig(x-2)=2Ig5

    asked on April 10, 2016
  19. algebra

    math question: you want to mat and frame a 5x 7 photograph. The perimeter of the outside of the mat is 60 inches. the mat is twice as wide at the top and the bottom as it is on the sides. Find the dimensions of the mat

    asked on August 24, 2012
  20. chemistry

    Iron reacts with HCl solution to give H2 gas and Fe2+ ions. Suppose that 5.4 g of iron are to be dissolved in 1.1 M HCl. What is the minimum volume (in mL) of the acid solution required to react with all of the iron?

    asked on September 13, 2011
  21. mathematics

    if k=log(squareroot9+squareroot5)/log(2), express log(squareroot9-squareroot5)/log(squareroot2) in terms of k.

    asked on April 2, 2016
  22. Math

    Three times as many children as adults attend a concert on Saturday. An adult's ticket cost $7 and a child's ticket cost $3. The theater collected a total of $6,000. How many people bought tickets?

    asked on April 26, 2011
  23. math

    can somebody show me how to do this? at what point on the graph of y= 3^x +1 is the tangent line parallel to the line y= 5x -1 ?

    asked on October 29, 2009
  24. math

    how do i find dy/dx using implicit rule? (x^2)y +x(y^2)=6

    asked on October 21, 2009
  25. science

    what force is keeping an object in the air and what force is bringing it down

    asked on April 19, 2009
  26. social studies!!

    What William Penn's and Benjamin Franklin's contribution to the Middle Colonies?

    asked on April 7, 2009
  27. algebra

    how do you work this problem ???? . . . X+(-9)=-5

    asked on August 28, 2007
  28. Geometry

    how do you find length when you are given perimeter and width? area? the length of what??????? wow You divide the perimeter by the width!Somebody helped me with this question to. in.=4yd.

    asked on August 23, 2005
  29. math

    i)use the substitution u=2^y to express the equation 3(2^y-1)=2^y+4 as a linear equation of u ii)hence solve the equation 3(2^y-1)=2^y+4

    asked on March 22, 2016
  30. English

    can you help me to answer these questions? What lifestyles (lifestyle is a manner of living that reflects the person's values and attitudes) can people lead? What are the main differences among lifestyles? What do you have in mind when you speak about

    asked on September 14, 2010
  31. health

    what is a sentence with the word nutrition

    asked on November 11, 2009
  32. math

    the water tank begins full.create a scatter plot to represent the amount of water in the tank over a 24-hours period

    asked on August 11, 2009
  33. algebra

    how do you simplify this with a positive exponent: p^8/p^-5

    asked on April 27, 2015
  34. Chemistry

    How Many molecules Of sodium are contained in 2 L Of sodium dichromate? The density Of sodium dichromate is 3.7 g/ml

    asked on May 14, 2013
  35. math

    can someone actually show me all the steps to finding this deriviative. I keep doing the problem out and getting the wrong answer. Find the deriviative of: INVERSEsin(2t)^1/2

    asked on October 26, 2009
  36. Math

    compare to 1/2 to tell which fraction is greater 8/17 , 13/23

    asked on September 3, 2009
  37. science! help

    What are some ways that energy from the sun is being used in a community??? Please Help

    asked on May 25, 2009
  38. 5th grade science

    What are some ways that energy from the sun is being used in a community!! Please Help

    asked on May 25, 2009
  39. social studies!!

    Why was a milliner important to the village?

    asked on May 10, 2009
  40. social studies!!

    What tools did a milliner use? I have needles, iron, thread, fabric, thimble, and scissors!

    asked on May 10, 2009
  41. science

    I have a science fair project and i was wondering what is a good green plant to use that grows quickly?

    asked on April 19, 2009
  42. social studies!!

    I need a sentence using two of these three words!! proprietor, representative, and treaty!! HELP!!

    asked on April 7, 2009
  43. English!!

    I need help!! what is the blank? change: variable:: move:_______ private:public:: major:_______ ancient:old::______:new go:went::_____:rose tree:forest::star:galaxy please reply!!

    asked on April 7, 2009
  44. science

    how dose oceanography effect the planet earth

    asked on September 6, 2008
  1. Geometry

    How will the area of the circle change if it is dilated by a scale factor of mc004-1.jpg?

    posted on July 5, 2019
  2. Chemistry

    2141.37

    posted on February 13, 2017
  3. Chemistry

    While in Europe, if you drive 123 per day, how much money would you spend on gas in one week if gas costs 1.10 per liter and your car's gas mileage is 23.0 ? Assume that .

    posted on February 13, 2017
  4. 4th grade

    susie has 3 quarts of milk how many oints does she have

    posted on May 12, 2016
  5. Maths

    A=4πr^2=4·π·100^2≈1.25664×10^5 V=4/3π r ^3=4/3·π·100^3≈4.18879×10^6

    posted on November 17, 2015
  6. Barrles

    The value of c could be 5 or any number greater than 5. The solution is the intersection of both solution sets of the given inequalities. The solutions of the compound inequality must be solutions of both inequalities. A number cannot be both less than 5

    posted on November 17, 2015
  7. Math I need help ASAP!

    1. d

    posted on May 27, 2015
  8. Math I need help ASAP!

    2. false 3. b.

    posted on May 27, 2015
  9. Math

    Sarah was cutting fabric for a quilt. She cut a strip of fabric that was inches long into 5 equal pieces. When she was finished cutting, Sarah had a piece that was inches long. How long was each piece that she cut for the quilt

    posted on October 10, 2013
  10. Algebra

    The area of a triangle is 22 , with a base of 8 yards. What is the height, in yards?

    posted on June 26, 2013
  11. MATH

    459+20x=559 5 hours

    posted on May 3, 2012
  12. Health-Care

    Some technical terms pass into common usage as knowledge about a field spreads. Think of three such terms that have passed into common usage recently

    posted on November 2, 2010
  13. algebra

    x*84=12*91 x*84=1092 x=1092/84 x=13

    posted on September 16, 2010
  14. math

    explain how you can use a hundred chart to subtract 12 from 46

    posted on September 15, 2010
  15. 3rd grade

    writing in math explain how you can use a hundred chart to subtract 12 from 46

    posted on September 15, 2010
  16. English

    thanks :)

    posted on September 14, 2010
  17. English

    thank you :) What are the main differences among lifestyles?

    posted on September 14, 2010
  18. English

    i don't know that is traditional and modern lifestyles.

    posted on September 14, 2010
  19. chem

    He's right. When you reduce H2O2 in basic solutions you have to add OH- to balance the equation.

    posted on May 14, 2010
  20. urgent math

    write an integer for a profit of $12.00

    posted on January 27, 2010
  21. health

    thank you

    posted on November 11, 2009
  22. Calc--derivatives

    did u get e^(lnx) / x^2 ??

    posted on October 13, 2009
  23. Calc--derivatives

    ummm.. i don't understand your language! can you explain that in baby terms? thanks!

    posted on October 13, 2009
  24. phyisics

    why didyou use these equations Go to the bottom coconut 20=Vi*t-1/2 g t^2 Now go to the top coconut 20=40-1/2 g t^2

    posted on October 12, 2009
  25. phyisics

    and what do you mean by top and bottom? thanks

    posted on October 12, 2009
  26. phyisics

    waht is g?

    posted on October 12, 2009
  27. science! help

    i know but i need more ideas!!

    posted on May 25, 2009
  28. social studies!!

    thanx!!

    posted on May 10, 2009
  29. social studies!!

    THANX!! SOCIAL STUDIES IS CONFUSING SOMETIMES!!

    posted on April 7, 2009
  30. social studies!!

    thanx!!! but i can't use it since i haven't learned about it!! It has to be about starting the middle colonies new york and new jersey!

    posted on April 7, 2009
  31. English!!

    thanx!!

    posted on April 7, 2009
  32. HSPA

    please i need help in math now i'm in 10 grade but i'm very worry about the hspa i think that won't pass it if i don't have help i'm so confuse !!!

    posted on January 4, 2008
  33. algebra

    yes thanx now i get it

    posted on August 28, 2007
  34. algebra

    i still don't get it

    posted on August 28, 2007
  35. algebra

    ii still don't get it

    posted on August 28, 2007
  36. algebra

    but why does X = -5 +9

    posted on August 28, 2007