Wednesday
February 10, 2016

Posts by lee

Total # Posts: 852

chemistry
dont understand
January 31, 2013

chemistry
A gas has a volume of 590mL at a temperature of -55.0C What volume will the gas occupy at 30.0C Can someone help me?
January 31, 2013

algebra
compare the graphs of the inverse variations by comparing asymptotes, similar points, lines of reflections and quadrants y=-0.7/x and y=-0.9/x
January 30, 2013

algebra
what is the quotient in simpliest form state the restrictions on the variable z^2-4/z-3 divided z+2/z^2+z-12 i got z^2+2x-8 but am not sure of the restrictions maybe 3,-2
January 30, 2013

algebra
What is the product in simpliest form state any restrictions on the variable x^2+7x+10 / x+3 times x^2-3x-18 / x^2+x+2 I got (x+5)(x-6) / x-1, not sure on restrictions either 1 or -3,-2, and 1
January 30, 2013

algebra
Simplify the rational expression state any restrictions on the variable t^2+2t-24 / t^2-36 I got t-4 / t-6, but Im not sure of the restrictions whether its 6 or -6,6
January 30, 2013

algebra
Find the horizontal asymptote of the graph of y=-4x^6+6x+3 / 8x^6+9x+3 please explain i think there is no horizontal asymptote
January 30, 2013

algebra
please explain the step for this I have no idea. the speed of the current in a river is 6 mph a ferry operator who works that part of the river is looking to buy a new boat for his business everyday his route takes him 22.5 miles against the current and back to his deck and he...
January 29, 2013

algebra
Thanks for checking my work
January 29, 2013

algebra
please explain the step for this I have no idea. the speed of the current in a river is 6 mph a ferry operator who works that part of the river is looking to buy a new boat for his business everyday his route takes him 22.5 miles against the current and back to his deck and he...
January 29, 2013

physics
An athlete executing a long jump leaves the ground at a 32.3 angle and travels 7.84 m. What was the takeoff speed? If this speed were increased by just 5.0%, how much longer would the jump be?
January 28, 2013

algebra
siplify and state any restrictions on the variables. x-2/x+3 plus 10x/x^2-9 Hope someone can explain this to me.
January 24, 2013

algabre
the speed of the current in a river is 6 mph a ferry operator who works that part of the river is looking to buy a new boat for his business everyday his route takes him 22.5 miles against the current and back to his deck and he needs this trip in a total of 9 hours he has a ...
January 24, 2013

Accounting
Can someone show me this bank reconciliation? On Aug 14th, One of our Partner's ( Compuville ) cash book showed a debit balance of $4,000.00. His bank statement showed a balance of $4,270.00. On comparison the following were found: * check issued amounting to $2,500.00 has...
January 19, 2013

algebra
how do the graphs of y=1/x and y=3/x-4 compare? a) compared to the graph of f=1/x the grapg of y=3/x-4 is vertical stretch by factor of 3 and a translation of 4 units left b) compared to the graph of y=1/x the graph of 3/x-4 is a vertical shrink by a factor of 3 and ...
January 19, 2013

physical sciences (motion in two dimensions)
John stand at the top of a 30m building. He throws a stone upwards with a speed of 5m/s. Calculate. (1)how long the stone is in the air. (2)the maxi mum height the stone reaches the ground?
January 17, 2013

Trigonometry
The populations, P, of six towns with time t in years are given by: I) P=1000(1.08)^t II) P= 600(1.12)^t III) P = 2500(0.9)^t IV) P=1200(1.185)^t V) P=800(0.78)^t VI) P=2000(0.99)^t a. Which towns are growing in size? Which are shrinking? b. Which town is growing the fastest? ...
January 15, 2013

algebra
Archers need to use arrows that do not bend easily. The table shows how the weight of an arrow affects its spine or the distance the center of the arrow bends when a certain constant weight is attached. Graph the data in the table to find a linear and quadratic model for the ...
January 8, 2013

algebra
Steve can you recheck my answer
January 4, 2013

algebra
this is what i got y=39 x=-117 y when x=-132 39/-117=k k=-0.3 y=-0.3*-132 y=39.6
January 4, 2013

algebra
so should be 39.6
January 4, 2013

algebra
oh ok thanks for catching my mistake
January 4, 2013

algebra
Find the value of y for a given value of x, if x varies directly with x. If y=39 when x=-117 what is y when x=-132 my answer y=k*x 39=k*-117 39/-117=k k=-0.3 y=k*x y=-0.3*-1.32 y=-3.96 can someone please check my work
January 4, 2013

algebra
not sure they are in possible answers
January 4, 2013

algebra
what is the simpler form of the radical expressio. 4 sqrt 2401x^12y^16 I know its 7x^3y^4 but not sure if looks like 7[x^3[y^4 7x^3[y^4
January 4, 2013

algebra
would the answer be 2 3sqrt 6 + 9 3sqrt18 over 6
January 4, 2013

algebra
how can you write the expression with rationalized denominator? 2+3sqrt3/3sqrt6
January 4, 2013

algebra
i dont understand
January 4, 2013

algebra
Wind farms are a source of renewable energy found around the world. The power P(in kilowatts) generated by a wind turbine varies directly as the cube of the wind speed v(in meters per second) If a turbine generates 700kW in a 5m.s wind, how much power does it generate in a 14m...
January 4, 2013

algebra
Can someone please explain this problem
January 4, 2013

algebra
The table shows the amount of milk that wisconsin dairy farms produced from 1939 to 1962 which linear model best fits this data? year milk produced(in billions of lbs 1939 12 1962 15 2005 21
January 4, 2013

algebra
thank you
January 4, 2013

algebra
Find the real solutions of the equation. -8x^3-17x^2+7x=0
January 4, 2013

algebra
thank you, helped explaining the answer
January 4, 2013

algebra
What is the equation in standard form, of a parabola that models the values in the table? x f(x) -2 4 0 -6 4 70
January 4, 2013

algebra
Coulld someone take the time and check my answers please. 11) without graphing is the system independent, dependent, or inconsistent? y=-x+5 -3x-3y=-15 (my answer; dependent) 12) your club is baking vanilla and chocolate cakes for a bake sale. they need at most 19 cakes you ...
January 3, 2013

algebra
Sorry this was duplicated
January 3, 2013

algebra
Have a few questions can someone please help me figure them out? 1) You research the cost of a gallon of gasoline over several years to look for a trend. The table shows your data. What is a line of best fit for the data? Based upon these prices, how much would you expect tp ...
January 3, 2013

algebra
Thanks Steve for the help
January 3, 2013

algebra
Have a few questions can someone please help me figure them out? 1) You research the cost of a gallon of gasoline over several years to look for a trend. The table shows your data. What is a line of best fit for the data? Based upon these prices, how much would you expect tp ...
January 3, 2013

Algebra
Thank you for checking.
January 2, 2013

Algebra
Could someone be nice enough to check my answers please? 1)Identify a pattern and find the next number in the pattern. -2,3,8,13 my answer; 18 2)Name the property of real numbers illustrated by the equation. -4(x+4)=-4x-16 my answer; distributive property 3)Solve the compound ...
January 2, 2013

algebra
which matrix represents the system of equations below. -2x-7y=3 7x-6y=12 not sure how to figure this out.
January 2, 2013

algebra
sorry the only answers i have to choose from are dependent,independent or inconsistent. my mistake
January 2, 2013

algebra
without graphing is each system independent, dependent, or consistent? -x-3y=0 x-y=4 please someone help me
January 2, 2013

algebra
thank you but how do you solve
December 10, 2012

algebra
For the function g(x)=14/x+3, find (g^-1o g)(4)
December 10, 2012

algebra
thanks
December 10, 2012

algebra
For the function f(x)=(7-8x)^2, find f^-1. Determine whether f^-1 is a function.
December 10, 2012

algebre
Can someone explain what the graph would look like for : y=-4x^2-2 and it's inverse
December 10, 2012

algebra
thank you for the help
December 10, 2012

algebra
Can someone help with inverse relations and functions? is relation t a function? Is the inverse t a function? chart looks like: x 0 2 4 6 y -10 -1 4 8 If someone could please explain this problem
December 10, 2012

algebra
Can someone please help me out.
December 2, 2012

algebra
1.what is the simplest form of the producy sqrt 50x^7y^7 * sqrt 6 xy^4 2. What is the simplest form of the radical expression 4^3 sqrt 3x + 5^3 sqrt 10x 3. What is the simplest form of the radical expression sqrt 2 + sqrt5 / sqrt 2 - sqrt 5 if someone could explain the steps ...
December 2, 2012

algebra
the answer was 10 3sqrt6
December 2, 2012

algebra
Thank you so much for the help
December 2, 2012

algebra
what is the simpliest form of the equation 3 sqrt 750 + 3 sqrt 2058 - 3 sqrt 48 possible answers 14 3sqrt6 17.5 3sqrt6 33 3sqrt6 10 3sqrt6
December 2, 2012

algebra
I need someone to explain the steps in finding all zeroes of an equation x^4-6x^2-7x-6=0
November 29, 2012

algebra
Really need help with one problem. The table shows the annual consumption of cheese per person in the United States for selected years in the 19th century. What cubic model best fits this data? Year Pounds Consumption 1915 4.156 1922 4.857 1946 7.16 1991 29.989 Not sure but do...
November 28, 2012

English
Hi again Writeacher. Just got off the phone with a NYC Teacher from the Dial-A-Teacher, and he didn't know. After what you said, I guess the correct ones are "store" and "floor", but I don't see a 3rd one? Could you please give me a different hint ...
November 28, 2012

English
What three words create assonance in the stanza: "One day a girl went walking And stepped into a store; She bought a pound of sausages Then set them on the floor."? Based on what assonance means and is used for... I'm guessing it's the words 'bought'...
November 28, 2012

college algebra, Please help!!
9x-1=144(6x) 9x-1=864x 9x-1-864x=0
November 28, 2012

Science
5km/100 is equal to 1/20 because you dived 5km/100km by 5 which gives you 1/20
November 27, 2012

algebra
Could someone please explain the steps in finding all the zeroes of the equation x^4-6x^2-7x-6=0 Have no idea
November 27, 2012

algebra
Could someone please explain the steps in finding all the real zeroes y=(x-12)^3-7 I do not know how
November 27, 2012

English
Why do you use "for" instead of "on" when you are talking about responsibilities? For example, if you wrote "they have these responsibilities for the house" why is it "for" not "on"?
November 26, 2012

algebra
Thank you
November 26, 2012

algebra
Im doing this problem also and a I cant figure it out
November 26, 2012

algebra
I still do not understand
November 26, 2012

algebra
Steve can you explain what Im doing wrong the only choices I have sre; y=x^4-4x^3-4x^2-4x-3 y=-x^4+4x^$x^2+4x+3 y=x^4x^3+3x^2+4x-4 y=x^4+4x^3+4x^2+4x+3
November 26, 2012

algebra
not sure if I did it right but is it y=x^4+4x^3+4x^2+4x+3
November 26, 2012

algebra
Not sure what you mean
November 26, 2012

algebra
What is a quartic function with only the two real zeroes given? x=-1 and x=-3 Would someone please explain
November 26, 2012

algebra
thank you for checking and helping
November 26, 2012

algebra
find the real solution of the equation by graphing 6x^3-2x=-9x^2 i got 0.2,-1.7 is this correct
November 26, 2012

algebra
Can someone please explain these problems to me I have tried and cannot figure them out. 1)Use synthetic division to find p(-3) for p(x)=x^4-2x^3-4x+4 2)Find all the zeroes of the equation x^4-6x^2-7x-6=0
November 25, 2012

Accounting
Please Help!!!! Trying to get a little help on working this accounting problem. Please help... Jawed enterprises uses a job-order costing system and a predetermined overhead rate based on machine hours. At the beginning of the year, the company estimated manufacturing ...
November 25, 2012

Accounting
Trying to get a little help on working this accounting problem. Please help... Jawed enterprises uses a job-order costing system and a predetermined overhead rate based on machine hours. At the beginning of the year, the company estimated manufacturing overhead for the year ...
November 24, 2012

english
thank you
November 18, 2012

english
Has anyone read Kate Chopin is so could you check my answers? 1. When Mrs. Sommers leaves to go shopping, she forgets to take money. her daughter Mag’s size. her preferred store. to eat lunch.***** 2. The resolution of a story should build to the climax of the story. ...
November 18, 2012

algebra
thank you
November 18, 2012

algebra
what are the real or imaginary solutios of the polynomial equation x^3-8=0 I came up with 1+i sgrt 3 and 1-i sgrt 3 could some see if I'm right
November 18, 2012

algebra
thank you
November 18, 2012

algebra
What are the zeros of the function? what are their multiplicities f(x)=4x^3-20x^2+24x numbers -3,-2,and 0 are multiplicity of 1 numbers 3,2,and 0 are multiplicity of 1
November 18, 2012

algebra
Thank you
November 18, 2012

algebra
What is a polynomial function in standard form with zeroes 1,2,-3,and -3
November 18, 2012

books
Ambrose Biercs Could someone that has read the story check my work? 1. The gray-clad soldier who tells Farquhar about the bridge is on his way to the bridge. a Federal scout. ****** frightened of being caught and hanged. planning to burn the bridge. 2. Unimaginably, Farquhar ...
November 16, 2012

Math
What is the difference between 500 thousandths and 5 tenths. I thought you could drop extra zeros to the right of the decimal? .500 vs .5
November 15, 2012

algebra
what is a quartic function with only the two real zeros given x=5 and x=1 y=-x^4-6x^3+6x^2-6x+5 y=x^4+6x^3-6x^2-5 y=x^4-6x^3+5x^2-6x+6 y=x^4-6x^3+6x^2-6x+5 can someone explain
November 14, 2012

algebra
a polynomial equation with rational coefficients has the roots 7+sgrt3, 2-sgrt6 find two additional roots 7-sgrt3, 2+sgrt6 3-sgrt7, 6+sgrt2 7+sgrt3, 2-sgrt6 3+sgrt7, 6=sgrt2 could someone help
November 14, 2012

algebra
I thought the graph looks like it opens up with the bottom on 2
November 14, 2012

algebra
3. Find a model for the set of values. x –5 –4 0 4 5 y 25 16 2 16 25 Can someone explain what the graph might look like whether it opens up or down, or slanted line or squiggle line
November 14, 2012

algebra
so you think y=x^4+2x^3-3x^2-2x+1 I dont understand these problems
November 14, 2012

algebra
Can someone please explain What polynomial has a graph that passes through the given points? (–4, 89), (–3, 7), (–1, –1), (1, –1), (4, 329) y = 2x3 – 3x2 – 2x + 1 y = 1x4 – 2x3 – 3x2 + 2x + 1 y = x4 – 2x3 + 3x2 + 2x – 1 y...
November 14, 2012

algebra
Let's see it''s okay for you to ask for help, but noone else!!! Mind your own business if you have nothing nice to say.
November 14, 2012

algebra
Can someone please explain and help me with this problem. 4. The table shows the annual consumption of cheese per person in the United States for selected years in the 20th century. Year Pounds Consumed 1908 5.027 1923 8.768 1960 12.29 1981 15.485 What cubic model best fits ...
November 14, 2012

books
I am not sure how to discuss the scene or general play I have the main characters but not sure about the rest,
November 12, 2012

books
Reread the nightmare scene near the end of The Night Thoreau Spent in Jail and describe the main characters and primary events in Henry’s nightmare. Also, discuss this scene in particular, and the play in general, as a work of protest against war itself. Do you recognize ...
November 12, 2012

algebra
Can you check my work? f(10)=0.08*10^3+10^2+0.26 80+100+10+0.26 =190.26
November 12, 2012

algebra
suppose the polynomial function below represents the power generated by a wind turbine where x represents the wind speed in meters per second and y represents the kilowatts generated interpret f(10) f(x)=0.08x^3+x^2+x+0.26
November 12, 2012

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