Thursday

May 5, 2016
Total # Posts: 868

**Chemistry **

When a fuel that contains sulfur is burned,the sulfur is converted to SO2. Suppose all of this SO2 is then oxidized in the atmosphere to SO3. The SO3 dissolves in atmospheric moisture to form sulfuric acid (H2SO4) contributing to acid rain. A particular fuel contains 1% sulfur...
*February 8, 2013*

**Chemistry**

Thanks!
*February 8, 2013*

**Chemistry**

How do you balance the equation when you have calcium nitrate and phosphoric acid?
*February 8, 2013*

**Chemistry**

How many grams of Ca3(PO4)2 can be formed from 206 g of calcium nitrate and 140 g of phosphoric acid?
*February 8, 2013*

**Chemistry**

Thanks!
*February 8, 2013*

**Chemistry**

If 16.9 g of CO2 was produced from the thermal decomposition of 41.83 g of CaCO3, what is the percentage yield of the reaction? CaCO3(s) > CaO(s) + CO2(g)
*February 8, 2013*

**math**

Thank you ms. Sue
*February 7, 2013*

**math**

Ms.Sue I got 49 pages
*February 7, 2013*

**math**

Gina read 35% of her 140 page book how many pages did she read?? Show all your work
*February 7, 2013*

**math**

A skateboard is on sale for 85% of the regular price if it is regularly priced at $40, how much is the sale price show all of your work below
*February 7, 2013*

**algebra**

Need help with this one write an explicit formula for the sequence 1/2,3//7,1/3,5/19,3/14 then find q14 I dont know how to set this up can someone please show me how this one works
*February 5, 2013*

**algebra**

got it thanks
*February 5, 2013*

**algebra**

Write a recursive formula for the sequence formula 15,26,48,92,180,.. then find the next term. can someone please help me
*February 5, 2013*

**algebra**

I think i figured it out 1,13,25,37,49
*February 5, 2013*

**algebra**

Generate the first five terms in the sequence using the explicit formula; Cn=12n-11 Please explain
*February 5, 2013*

**algebra**

Could someone check my work; 1. Generate the first five terms in the sequence using the explicit formula. yn = –5n – 5 –30, –25, –20, –15, –10 30, 25, 20, 15, 10 –10, –15, –20, –25, –30(my answer) 10, 15, 20, 25, 30 2...
*February 3, 2013*

**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*