Friday
August 22, 2014

Posts by molly


Total # Posts: 456

chemistry
f 8.77 g of KI are dissolved in enough water to make 4.75 L of solution, what is the molarity of the solution?
August 10, 2014

American Government
Which is NOT a responsibility of the Department of Energy? To formulate national energy policy To research and develop nuclear and energy technology To regulate the distribution of electricity and natural gas To oversee the construction of national highways
July 18, 2014

Chemistry
I need help on these three questions. For all three of them you're supposed to write a balanced equation for each neutralization. Then, to find the concentrations of the unknown solutions if the following reactions are found to reach equivalence by titration. The three ...
June 9, 2014

science
UNSCRAMBLE RDOCRROUTINEDEVELOPMENT to make 2 words having to do with the reproductive system
June 4, 2014

Family
What career is more worthy to go to college for and save the most money? A.) Vet Tech B.) Preschool/Kindergarden Teacher C.) Pilot D.) Manager A or B ??
April 2, 2014

math
Brandon has a 55-gallon fish tank. He estimates he can drain the tank at an average rate of 11 gallons per minute. In a linear model of this situation, x represents the number of minutes the tank has been draining. Relative to this situation, what does the y-intercept ...
March 1, 2014

algebra
Brandon has a 55-gallon fish tank. He estimates he can drain the tank at an average rate of 11 gallons per minute. In a linear model of this situation, x represents the number of minutes the tank has been draining. Relative to this situation, what does the y-intercept ...
March 1, 2014

Physics
In a two-dimensional tug-of-war, Alex, Betty, and Charles pull horizontally on an automobile tire at the angles shown in the picture. The tire remains stationary in spite of the three pulls. Alex pulls with force of magnitude 207 N, and Charles pulls with force of magnitude ...
March 1, 2014

Physics
It does not state how to get b and I have been looking through my book and other textbooks and online but cannot find how.
February 28, 2014

Physics
I did not copy and paste. I simply stated to copy and paste into the Google search bar this question and there are many results with this similar question. Just copy and paste this question and click the first link tha appears (I cannot type the url)and there are three ...
February 28, 2014

Physics
In a two-dimensional tug-of-war, Alex, Betty, and Charles pull horizontally on an automobile tire at the angles shown in the picture. The tire remains stationary in spite of the three pulls. Alex pulls with force of magnitude 207 N, and Charles pulls with force of magnitude ...
February 28, 2014

algebra
Which graph best represent following expression|x-1|>2
February 26, 2014

algebra
Use properties of real numbers to rewrite expression(3/5)(5/3)answers are 8/15,, 15/8,, 0, 1
February 22, 2014

algebra
Name the property of real numbers illustrated by the equation2·(8·7)=(2·8)·7answers are distributive property, associative property multiplication, communicative property, associative addition
February 22, 2014

algebra
Name the property of real numbers illustrated by the equation2·(8·7)=(2·8)·7
February 21, 2014

algebra
Insert<,>or=to make the sentence true -1/3-2/5 answers are. = < >
February 21, 2014

algebra
Graph the number on a number line 10/7
February 21, 2014

algebra
To which set of numbers does the number belong-55 answers are, Natural, whole, integers, irrational
February 21, 2014

algebra
Which inequality represent the following eight fewer than a number is at least sentence 20 answers are. X-8>20. 8-X>20, x+8<20. X-8<20
February 21, 2014

algebra
Solve the equation or formula for the indicated variable s=3r4t+or t answers are. t=s/3-r. t=r4-3s t=s/3r4. T=811/s
February 21, 2014

algebra
Solve the equation|2x+10|>26 answers are x<-36or x>16,, x>-18or x<8, x<-18or x>8,x<-8or x>8
February 20, 2014

algebra
The equation y-100x=2000 can be used to represent monthly salary of a salary of a salesman ,y when he sells x computer system what is the salesman monthly salary if he sells no computer. Answers are 20, 100, 2000, 2100 thank you
February 20, 2014

algebra
Which of the following is equal to (2x/5-9)+9. Answers are 2x/5, 5x/2, 2x/5-45, (2 x-9)+45
February 20, 2014

algebra
Which equivalent form following equation 2x-3y=3
February 20, 2014

algebra
Name property real number illustrated by equation 5+(15+6)=(5:+(15)+6
February 20, 2014

algebra
Solve the inequality |2x+10|>26
February 20, 2014

algebra
Solve inequality |2 x+10|26
February 20, 2014

algebra
Which equivalent form following equation 2x-3y=3 need help doing test thank you
February 19, 2014

algebra
What is an equivalent form of the following equation 2x-3y=3
February 19, 2014

algebra
Need help doing a test change the test equation y-100x=2000can be used to represent monthly salary of a salesman when he sells x computer system what is the salesman monthly salary if he sells no computer
February 19, 2014

algebra
Show all steps solve the problem evaluate the expression for given value of variable|-4b-8|+|-1=b2|+2b3:b=-2
February 19, 2014

algebra
Need help for a test show all steps to solve problem evaluate the expression for given value of variable. -(4h-1) line is under 4h-1 under line is|th then it is ;h=2 can't text back on kindle don't have a button to reply thank you
February 19, 2014

algebra
Show all steps solve the equation check for extraneous solution 9|9-8 x|=2x+3
February 18, 2014

algebra
You had 207.00,but spend 2.00each day which algebraic expression describes the situation,where d represents the number of days ? Answers are 207+d, 205d, 2+207d, 207-2d
February 15, 2014

algebra
You had 207.00,but 2.00each day which algebraic expression describes the situation where d represents the number of days. Answers are 207+2d, 205d, 2+207d,207-2d
February 15, 2014

math
an air plane takes off with an elevation of 27degrees. what is the total land distance the plane reaches a cruising altitude of 875 feet ? if the plane is traveling at a steady speed of 651 feet per hour, how much time will it take the plane to reach its cruising distance? ...
February 13, 2014

Physics - please help!!..
A long thin rod lies along the x-axis from the origin to x=L, with L= 0.890 m. The mass per unit length, λ (in kg/m) varies according to the equation λ = λ0 (1+1.410x2). The value of λ0 is 0.700 kg/m and x is in meters. 1. Calculate the total mass of the ...
February 12, 2014

Physics
A large horizontal circular platform (M=143.1 kg, r=3.01 m) rotates about a frictionless vertical axle. A student (m=75.3 kg) walks slowly from the rim of the platform toward the center. The angular velocity ω of the system is 2.10 rad/s when the student is at the rim. ...
February 11, 2014

Physics
A long thin rod lies along the x-axis from the origin to x=L, with L= 0.890 m. The mass per unit length, λ (in kg/m) varies according to the equation λ = λ0 (1+1.410x2). The value of λ0 is 0.700 kg/m and x is in meters. 1. Calculate the total mass of the ...
February 11, 2014

Physics
something is wrong in the answer, can you explain it again please?..
February 11, 2014

Physics
A large horizontal circular platform (M=143.1 kg, r=3.01 m) rotates about a frictionless vertical axle. A student (m=75.3 kg) walks slowly from the rim of the platform toward the center. The angular velocity ω of the system is 2.10 rad/s when the student is at the rim. ...
February 11, 2014

Physics
A long thin rod lies along the x-axis from the origin to x=L, with L= 0.890 m. The mass per unit length, λ (in kg/m) varies according to the equation λ = λ0 (1+1.410x2). The value of λ0 is 0.700 kg/m and x is in meters. 1. Calculate the total mass of the ...
February 11, 2014

Chemistry 1
Imagine that a hypothetical life form is discovered on our moon and transported to Earth. On a hot day, this life form begins to sweat, and it is determined that the heat of vaporization of its sweat is 215 cal/g. The scientist observing the extraterrestrial life form also ...
January 24, 2014

chemistry
not really I am just trying to understand what the chemical equation looks like
November 21, 2013

chemistry
Write the equation for the dissociation of carbonic acid.
November 21, 2013

Science
yes that's right
November 6, 2013

Homework Help Calculus
I tried that answer and it still was incorrect
October 15, 2013

Homework Help Calculus
Use linear approximation to estimate the amount of paint in cubic centimeters needed to apply a coat of paint 1/100cm thick to a hemispherical dome with a radius of 18 meters. I tried it but I keep getting the wrong answer.Here's what I did below: sphere: V = ⁴/&#...
October 15, 2013

Practice Exam Calculus
The radius of a sphere was measured to be 20cm with a a possible error of 1/5cm 1).Use linear approximation to estimate the maximum error in the calculated surface area. Leave your answer in terms of pi. 2).Use linear approximation to estimate the maximum error in the ...
October 15, 2013

math
using d2h/dt2=−g+k(dh/dt)^2, find an expression for the terminal velocity in terms of k and g?
October 7, 2013

Math
A man on the 8th floor of a building sees a bucket (dropped by a window washer) pass his window and notes that it hits the ground 1.5s later. Assuming a floor is 12ft high (and neglecting air friction), from which floor was the bucket dropped?
October 7, 2013

Math
Draw all the possible rectangles with a perimeter of 26 cm and whole number lengths of sides. For each rectangle, label the lengths of two adjacent sides
September 29, 2013

Math
Mike drove to a friends house at a rate of 40 mph he returned by the same route at 45 mph The driving time round trip was 4 hours. write and solve an equation to find the distance Mike traveled
August 13, 2013

Math
Let V be the volume of a pyramid of height 15 whose base is a square of side 5. Part a). Use similar triangles to find the area of the horizontal cross section at a height y. Part b). Calculate V by integrating the crosss-sectional area.
July 9, 2013

Chemistry
If you could me solve ths is anyway, it would be much appreciated. A solution containing 3.50g of sodium carbonate is mixed with one that contains 5.00g of silver nitrate. a. Write the complete chemical equation and the net ionic equation for the reaction that occurs. b. What ...
June 29, 2013

Chemistry
If you could me solve ths is anyway, it would be much appreciated. A solution containing 3.50g of sodium carbonate is mixed with one that contains 5.00g of silver nitrate. a. Write the complete chemical equation and the net ionic equation for the reaction that occurs. b. What ...
June 29, 2013

science
how can you define the problem how far can you make a rubber stopper fly through the air if the only force applied comes from a gas forming chemical reaction
May 15, 2013

chemistry
Helium-oxygen mixtures are used by divers to avoid the bends and are used in medicine to treat some respiratory ailments. What percent (by moles) of He is present in a helium-oxygen mixture having a density of 0.528g/L at 25 degree celsius and 721 mmHg ?
May 4, 2013

chemistry
To identify a diatomic gas (), a researcher carried out the following experiment: She weighed an empty 2.4- bulb, then filled it with the gas at 1.70 and 28.0 and weighed it again. The difference in mass was 4.7 . Identify the gas.
May 4, 2013

Math
How to figure out 4x+9=1234
April 28, 2013

math
triangle ABC is an isoscles triangle and semicircle, have same base AB and same area. Find the base angles of the triangle.
April 23, 2013

Biology
Dephosphorylation in the transuction process needs: A) protein kinases B) protein phosphatases C) single sugar like glucose D)cabohydrate
April 14, 2013

Parametric Equations
Convert to a rectangular equation by eliminating the parameter: x=(1/t) y=2t+3
April 13, 2013

Biology
Programmed cell suicide occurs when internal or external signals go through _____ processes. Answer a)reception b)transduction c)response d)all of the above
April 13, 2013

Calculus
Use 5 right rectangles to estimate the area of the area under the graph of 25−x 2 from x = 0 to x = 5 using 5 left rectangles?
April 12, 2013

Calculus
Estimate the area under the graph of 25−x 2 from x = 0 to x = 5 using 5 left rectangles?
April 12, 2013

Calculus
what is the second derivative of (x^3-6x)^11 that is fully simplex
April 8, 2013

Calculus
does the series 1/(n^2+n) converge or diverge? n=2 to n=infinity
March 31, 2013

Calculus
does the sum e^n / n! converge or diverge? n=1 --> infinity
March 31, 2013

Calculus
find the 6th degree Taylor polynomial for f(x)=cosx centered at pi/2
March 31, 2013

History
Was Wilson correct in trying to get American into the League of Nations? Was it correct to try to get the tenth article modified?
March 2, 2013

History
Why did many progressives on either side of WW1 see America's entry into the war as an opportunity? What did the progressives accomplish during the war that they felt was positive?
March 2, 2013

calculus
Find dy/dx by implicit differentiation. x cos y + y cos x = 1
February 28, 2013

calculus
y= e^-7x cos 5x y'=
February 28, 2013

calculus
Sorry y'=
February 22, 2013

calculus
y = (sin x) / (1 + tan x)
February 22, 2013

Algebra
I'm not entirely sure how to set up this problem.
February 21, 2013

Algebra
How many ounces of other metal must be added to 56 ounces of pure silver to make a composition that is 70% silver?
February 21, 2013

Math
A house is being renovated for $50,000. Right now the HST is 12% and is charged on all renovations. After April the HST will be gone and be replaced with PST of 7% and the GST of 6%. Renovations will only have to charge GST. How much money will the homeowner save if they wait ...
February 20, 2013

Math 9
omg thank you so much, you saved my life! so the answer is $3000 right?, thank you!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
February 20, 2013

Math 9
my teacher has given us no notes or examples, thats why im asking for help
February 20, 2013

Math 9
A house is being renovated for $50,000. Right now the HST is 12% and is charged on all renovations. After April the HST will be gone and be replaced with PST of 7% and the GST of 6%. Renovations will only have to charge GST. How much money will the homeowner save if they wait...
February 20, 2013

math 9 help
A house is being renovated for $50,000. Right now the HST is 12% and is charged on all renovations. After April the HST will be gone and be replaced with PST of 7% and the GST of 6%. Renovations will only have to charge GST. How much money will the homeowner save if they wait ...
February 19, 2013

Math 9
A house is being renovated for $50,000. Right now the HST is 12% and is charged on all renovations. After April the HST will be gone and be replaced with PST of 7% and the GST of 6%. Renovations will only have to charge GST. How much money will the homeowner save if they wait ...
February 19, 2013

Math 9
Thanks for #1 but i still dont get #2 can u help again
February 19, 2013

Math 9
1. A premium box ticket at the Canucks game is $60 more than the low section next to the glass. The middle section is $90 less than the box section. The total for these three seats is $360. How much does each seat cost? Use algebra. 2. A house is being renovated for $50,000. ...
February 19, 2013

Science 9
never mind i have figured out the answers
February 15, 2013

Science 9
write formulas for each of these compounds: potassium phosphate ammonium sulfate sodium oxide For sodium oxide i got: Na 2 O
February 15, 2013

To :: Ms.Sue
ok thanks, and its totally my fault cause i miss typed the question. thank you for understanding and helping me :)
February 7, 2013

To :: Ms.Sue
i miss typed its actuallt 2.10 not 2.20 im still stuck
February 7, 2013

To :: Ms.Sue
no it wasnt 2.20 it was 2.10
February 7, 2013

To :: Ms.Sue
Ms.Sue when you answered my question you said x= 3.87 but then the daughters drink would be $2.97 and the sons drink would be $5.97 not 6.07 and the total wouldnt add up to $12.90, it would add up to 12.81.... i dont get this
February 7, 2013

Math 9
omg thank you, i was trying this too thanx:)
February 7, 2013

Math 9
My family went to starbucks. We ordered 3 drinks. My daughter's drink was .90 cents less than my drink and my sons drink was $2.20 more than my drink. The total bill was $12.90. How much was each drink? Use algebra. k so i did this: x+ (x-.90) + (x+2.20) = 12.90 how do you...
February 7, 2013

math
34
February 7, 2013

math
Sorry, I misunderstood the question. it's $34.
February 7, 2013

math
100%-85%=15% $40 x 0.15 = $6
February 7, 2013

vectors
The position vectors, r km, and the velocity vectors, v km/h, of two boats at a certain time are given by ... Boat A:at 10:00 am rA=6i+10j vA=8i–2j Boat B:at 10:30 am rB=8i+5j vB=4i+j ... determine the time at which boat B should head out so that the two boats do collide.
February 7, 2013

Math 9
My family went to starbucks. We ordered 3 drinks. My daughter's drink was .90 cents less than my drink and my sons drink was $2.20 more than my drink. The total bill was $12.90. How much was each drink? Use algebra. Please help me, thanx sorry I had to repost this question...
February 6, 2013

Math 9
My family went to starbucks. We ordered 3 drinks. My daughter's drink was .90 cents less than my drink and my sons drink was $2.20 more than my drink. The total bill was $12.90. How much was each drink? Use algebra. Please help me, thanx
February 6, 2013

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