Most popular questions and responses by Alaina
  1. Math

    Victoria is opening a pet store. She will start by making custom dog collars. If the collars cost her $3 each, the embellishments $2, and $0.15 per bag, what is her unit cost per collar?

    asked on April 16, 2016
  2. science

    One defining idea about empathy is that some aspect of it occurs automatically; people effortlessly mimic others' movements and actions, including facial expressions. Evidence that this aspect of empathy may be biologically innate comes from the

    asked on February 28, 2019
  3. Physics

    A loaded penguin sled weighing 81 N rests on a plane inclined at angle θ = 21° to the horizontal (Fig. 6-23). Between the sled and the plane, the coefficient of static friction is 0.24, and the coefficient of kinetic friction is 0.13. (a) What is the

    asked on October 10, 2010
  4. Math

    ABC Game store sells new games, n, for $19 and used games, u, for $9. The store earned $7500 in revenue last month. The store sold 4 times as many used games as new games. Write a system of equations that represents this scenario.

    asked on April 16, 2016
  5. Math

    Victoria has a 1000$ budget for her pet store supplies. If collars cost $5 each and embellishments cost $2 each, write the inequality that represents this scenario. use c to represent numbers if collars and E for numbers of embellishments

    asked on April 18, 2016
  6. math

    Write a matrix that represents the system of equations below. 7x – 3y = 21 5x – y = 85

    asked on April 16, 2016
  7. Math

    Find the area of each circle use 22/7 for pie. 1. r=14ft 2.d=3 1/3 yd

    asked on January 7, 2008
  8. Physics

    The two blocks (m = 13 kg and M = 89 kg) are not attached to each other. The coefficient of static friction between the blocks is μs = 0.50, but the surface beneath the larger block is frictionless. What is the minimum magnitude of the horizontal force

    asked on October 10, 2010
  9. math

    need to know how to find the distrbutive property of 50x62,159= (50x )+(50x )+(50x100)+(50x50)+(50x9)

    asked on March 28, 2013
  10. Math

    Liana has two toy planes. The first plane is on a string that is 12 feet long. The second plane can go in a circle that has a diameter of 22 feet. Which plane can make a larger circle in the air? Explain.

    asked on January 25, 2011
  11. business

    Write a four paragraph answer, citing the text, to – Would you be willing to pay $500 today in exchange for $10,000 in 30 years? What would be the key considerations in answering yes or no? Would your answer depend on who is making the promise to repay?

    asked on June 22, 2010
  12. business

    Analyze the following scenario: Duncombe Village Golf Course is considering the purchase of new equipment that will cost $1,200,000 if purchased today and will generate the following cash disbursements and receipts. Should Duncombe pursue the investment if

    asked on June 22, 2010
  13. physics

    An swimmer of mass m is at a swimming pool. She climbs the steps to the diving board 4.0 m above the water. She jumps off the board, which enables her to rise a further 0.7 m before she begins her descent into the pool. At what speed does she enter the

    asked on January 2, 2014
  14. math

    whatsz 4(x+5.1)-5x It is an algebraic expression.

    asked on May 29, 2007
  15. Calculus-Check please?

    Fabio stands atop his 16 foot ladder when he realizes that the ladder is slipping down the side of the building. He decides that the base of the ladder is moving away from the bottom of the building at a rate of 2 feet per second when it is 3 feet from the

    asked on May 6, 2013
  16. Derivatives

    I have gotten so many different responses from mine on this question Can someone PLEASE write out the steps for me for this. Thanks f'(x)= 2x/(x^2+1) Find the second derivative. I get 4x^3 + x^2- 12x + 1

    asked on May 6, 2013
  17. Calculus-Solved

    this is wrong. but can you explain how to correct it? thanks use differential of x^-1/3 to approximate solution to (1/cube root(7.952)) differential: df= -1/3(x^(-4/3)) * dx df= -1/48 * 0.0048 df= -0.001 0.500 - 0.001 = 0.499 but this is wrong.

    asked on May 4, 2013
  18. Geometry

    If you have only 500 sq. feet of material and have to built a swimming pool, which shape will hold the most water. A cylinder, a cube or a rectangular prisim?

    asked on February 10, 2010
  19. Calculus-Solved-Why is this wrong?

    use differentials to approximate the change in f(x) if x changes from 3 to 3.01 and f(x) = (3x^2-26)^10 derivative: 10(3x^2-26)^9 f(x+ delta x)= 1 + 10(3x^2-26)^9 * 0.01 = 1 + 10(0.01)

    asked on May 4, 2013
  20. physics

    if a bowling ball with a 22 cm diameter is half way submerged in a bucket of water, what is its mass?

    asked on July 12, 2011
  21. Algebra

    Please help. I have tried many times to come up with something after reading the material but I am completely stumped. A cubic container, with sides of length, x inches, has a volume equal to x^3 cubic inches. The height of the container was decreased and

    asked on November 21, 2009
  22. Math

    Mrs. Mati is setting up two rest stops for a race. There are 24 gallonsvof lemonade total at the two stops.The second stop has twice as many as the first stop.How many gallons of lemonade are at each rest stop?

    asked on March 25, 2016
  23. Physics 2

    Rearrange this equation to make b the subject and then, by replacing each term of the equation by its SI base units, express the units of b in SI base units. Eph=hct ___ b

    asked on January 2, 2014
  24. Asympotes, Data?-Bump

    If someone could help me on this, I'd appreciate it. f(x)= 2x/(x^2+1) Vertical: none Horizontal: none Minimum: x=-1 Maximum: x=1 Inflection Points: it seems like there are one or two, but i don't know how to factor f''(x)= 4x^3 + x^2 - 12x + 1 :/

    asked on May 5, 2013
  25. Asympotes, Data?

    f(x)= 2x/(x^2+1) Vertical: none Horizontal: none Minimum: x=-1 Maximum: x=1 Inflection Points: it seems like there are one or two, but i don't know how to factor f''(x)= 4x^3 + x^2 - 12x + 1 :/

    asked on May 4, 2013
  26. Calculus-Solved - Incorrect

    k(z)= 4z^4 - z(z+10)/((1+z)^2) derivative? 16z^3 + (3z^3 + 26z^2 + 42z + 10)/((1+z)^4) this is wrong though ^

    asked on May 4, 2013
  27. Calculus-Solved - Incorrect

    calculate delta y for f(x)= x^(3/2) with x= 4 and delta x= dx=0.1 delta y= f(x+delta x)- f(x) = f(4.1) - f(4) delta y= f(4.1)-8 f(x + delta x)= 8 + 3/2*x^(1/2)*0.1 = 8 + 0.15x^(1/2) = 8 + 0.30 = 8.30 delta y= 8.30 - 8 delta y= 0.30 but this is wrong. why

    asked on May 4, 2013
  28. math

    What are the corner points for the feasible region given on the right? gg

    asked on April 18, 2011
  29. trig

    verify the identity. cos2 x - sin2 x = 1 - 2sin2 x the 2's next to the sin and cos on the right sides are powers.

    asked on February 15, 2011
  30. string theory

    what is the string theory?

    asked on November 28, 2007
  1. algebra 1

    How do I write an expression that would give George distance for 62 miles per hour.

    posted on September 10, 2018
  2. history

    Dear,Ms.Sue Hi I'm Alaina I'm in 5th grade I'm studying Rome, Italy and i need answers are u sure its Britian. Sincerely, Alaina

    posted on April 9, 2018
  3. MATH


    posted on February 1, 2018
  4. Pigskin Geography

    vikings and panthers

    posted on January 29, 2018
  5. Social studies

    I think it’s d and a ?!

    posted on October 5, 2017
  6. Ss

    Okay I will but can you help me anwser this

    posted on October 5, 2017
  7. Social studies

    I think that it’s b

    posted on October 5, 2017
  8. Math


    posted on August 31, 2016
  9. math

    120cm and 72cm GCF = 24 120/24=5 72/24=3 3X3=9 square pieces

    posted on August 16, 2016
  10. health

    c interfering?

    posted on March 24, 2016
  11. Derivatives

    Oops I meant 4x^3 + x^2 - 12x + 1/ ((x^2+1)^3)

    posted on May 6, 2013
  12. Asympotes, Data?-Bump

    Thank you so much! I see what I should have done now. :P

    posted on May 5, 2013
  13. Asympotes, Data?

    Can someone help me with this? I have already solved it. Thank you.

    posted on May 5, 2013
  14. Calculus-Solved-Why is this wrong?

    The Chain Rule- of course! Thank you very much Steve. :-)

    posted on May 4, 2013
  15. Calculus-Solved

    This is also what I entered, yet it is wrong

    posted on May 4, 2013
  16. maths

    perpendicular lines have opposite sign and reciprocal slopes from the original line you are given. put the first equation into proper form y= (-2x/3)+(5/3) the slope in this case is -2/3 Therefor a perpendicular line will have the slope 3/2.

    posted on June 6, 2008
  17. integrated algebra

    x-5 x+5 ___ = ___ 4 x+2 First you want to cross multiply (x-5)(x+2) = 4(x+5) Then use FOIL on the left hand side, and distribute the 4 on the right hand side to get X(squared)-3x -10 on the left = 4x+20 on the right subtract the 4x+20 on the right and left

    posted on June 6, 2008