Alaina
Most popular questions and responses by Alaina
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 
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 
Physics
A loaded penguin sled weighing 81 N rests on a plane inclined at angle θ = 21° to the horizontal (Fig. 623). 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 
Math
ABC Game store sells new games, n, for $19 and used games, u, for $9. The store earned $7500 in revenue last month. The store sold 4 times as many used games as new games. Write a system of equations that represents this scenario.
asked on April 16, 2016 
Math
Victoria has a 1000$ 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 
math
Write a matrix that represents the system of equations below. 7x – 3y = 21 5x – y = 85
asked on April 16, 2016 
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 
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 
math
need to know how to find the distrbutive property of 50x62,159= (50x )+(50x )+(50x100)+(50x50)+(50x9)
asked on March 28, 2013 
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 
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 
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 
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 
math
whatsz 4(x+5.1)5x It is an algebraic expression.
asked on May 29, 2007 
CalculusCheck 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 
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 
CalculusSolved
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 
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 
CalculusSolvedWhy is this wrong?
use differentials to approximate the change in f(x) if x changes from 3 to 3.01 and f(x) = (3x^226)^10 derivative: 10(3x^226)^9 f(x+ delta x)= 1 + 10(3x^226)^9 * 0.01 = 1 + 10(0.01)
asked on May 4, 2013 
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 
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 
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 
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 
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 
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 
CalculusSolved  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 
CalculusSolved  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 
math
What are the corner points for the feasible region given on the right? gg
asked on April 18, 2011 
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 
string theory
what is the string theory?
asked on November 28, 2007

algebra 1
How do I write an expression that would give George distance for 62 miles per hour.
posted on September 10, 2018 
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 
MATH
Yaaaa
posted on February 1, 2018 
Pigskin Geography
vikings and panthers
posted on January 29, 2018 
Social studies
I think it’s d and a ?!
posted on October 5, 2017 
Ss
Okay I will but can you help me anwser this
posted on October 5, 2017 
Social studies
I think that it’s b
posted on October 5, 2017 
Math
17÷1,569
posted on August 31, 2016 
math
120cm and 72cm GCF = 24 120/24=5 72/24=3 3X3=9 square pieces
posted on August 16, 2016 
health
c interfering?
posted on March 24, 2016 
Derivatives
Oops I meant 4x^3 + x^2  12x + 1/ ((x^2+1)^3)
posted on May 6, 2013 
Asympotes, Data?Bump
Thank you so much! I see what I should have done now. :P
posted on May 5, 2013 
Asympotes, Data?
Can someone help me with this? I have already solved it. Thank you.
posted on May 5, 2013 
CalculusSolvedWhy is this wrong?
The Chain Rule of course! Thank you very much Steve. :)
posted on May 4, 2013 
CalculusSolved
This is also what I entered, yet it is wrong
posted on May 4, 2013 
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 
integrated algebra
x5 x+5 ___ = ___ 4 x+2 First you want to cross multiply (x5)(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