Monday
November 24, 2014

Posts by molly


Total # Posts: 514

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

maths
30
March 4, 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

math
You guys do an excellent job helping kids.Thank you :)
February 2, 2013

math
I have a question is this cheating when we ask questions from our school work ? Wouldn't our on line school know we are kids are doing this ? What is an ethical homework question ? Curious..
February 2, 2013

Math 9 algebra
Thank you
January 26, 2013

Math 9 algebra
A mechanic charges $70 an hour plus the cost of parts to repair a vehicle. The parts cost $215 for the repair on Tamara's car. A) write an expression for the total cost, C, of repairing Tamara's car for any numbers of hours, n. B) use the expression you created in part...
January 26, 2013

Calculus 1
(a) What is the continuous percent growth rate for P=130e^0.07t , with time, t , in years? (b) Write this function in the form P=P0a^t. What is the annual percent growth rate? Round your answer to two decimal places. I tried it but now I'm just more confused. How do I do ...
January 24, 2013

math
Find a fraction that reduces to 3/4 when both the numerator and denominator are decreased by i, and reduces to 4/5 when both the numerator and denominator are each increased by 1. I know the answer is 7/9, but i dont know how to solve (i must use a system of equations).
January 23, 2013

Chemistry
6.326
January 18, 2013

4th grade math
oh i know now xD
January 14, 2013

4th grade math
I don't know what the rule is
January 14, 2013

4th grade math
i don't get what u Kineda is saying idk what kaitlyn is saying idk what psydag is saying either
January 14, 2013

Math 9
Thanks :)
January 13, 2013

Math 9
use exponent rules to simplify. Write as a single power, dont need to find the value. [ (11/20)^4 x (11/20)^-8]^5 and (11/20)^-6 you cant leave an number to the power of a negative exponent. You have to change it like this ex : 2^-3 = 1/2^3 = 1/8
January 13, 2013

algebra
-A store sells 28 ounces of peanut butter for $2.24. The store also sells 32 ounces of teh same peanut butter for $2.40. Which is a better buy?
January 10, 2013

World history
12. The Delhi Sultanate ruler Radiyya first took power chiefly because A. she proved herself in battle. B. she wore men's clothes. C. she killed her brother. D. her father chose her as his successor. I chose c
December 19, 2012

Spanish
Ok can u Atleast check if it makes sense? I wanna pass
December 7, 2012

Spanish
I found it can i send a recording??
December 7, 2012

Spanish
R these correct??plz help En la 11. ___________ te llamé. De la oscuridad me llamaste. Reconocí tu 12. ___________. Reconociste la mia. “Vente para acá,” 13. ___________. Respondiste: “¿Dónde estás, papá? No te 14...
December 7, 2012

Spanish
😭 Thanks anyway:(
December 7, 2012

Spanish
No I listen to the cd and fill in the blanks
December 7, 2012

Spanish
Ok if I try fillin in the blancks then can u help
December 7, 2012

Spanish
Can someone plz fill in the blanks for me i can't find the cd and its due tomorrow??!!!!!!PLZZZZ En la 11.________ te llamé. De la oscuridad me llamaste. Reconocí tu 12.______. Reconociste la mia. "Vente para acá,"13.______. Respondiste: &...
December 7, 2012

Spanish
Thanks:)!!!!
December 7, 2012

Spanish
What's the correct way to say Then I was mistaken In Spanish?
December 7, 2012

Spanish
I meant :)
December 7, 2012

Spanish
It's alright:(
December 7, 2012

Spanish
Partido means party it was juego but thanks
December 7, 2012

Spanish
Nvr mind
December 7, 2012

Spanish
Which is he correct way to rite this sentence in Spanish We lost the game Perdimos el juego OR Perdimos el partido
December 7, 2012

Spanish
Bunch^^^
December 6, 2012

Spanish
Thanxz a buch:)!!!!
December 6, 2012

Spanish
And does la frente mean forehead?
December 6, 2012

Spanish
Ok:) thanks I Appreciate it!!!!!
December 6, 2012

Spanish
Can u correctly write these sentences in Spanish,plz? 1. I'm very proud of my son. 2. He can spell his name backward and forward. 3. What's his name? 4. How much does a new car cost in America? 5. You must be very rich. If tried already this is wat I got, plz double ...
December 6, 2012

Spanish
Thanks☺🙏
December 6, 2012

Spanish
Ok thanks r they gonna post it here?
December 6, 2012

Spanish
Are they correct
December 6, 2012

Spanish
6.tengo 7.tenemos 8.sra 9.venimos 10.sale 11.vuelven
December 6, 2012

Spanish
Conjugate the following irregular verbs in the simple present tense (indicative) 6. Tener(to have) Yo __________ 7. Tener(to have) Nosotros ________ 8. Venir(to come) Tú _________ 9. Venir( to come) nosotros________ 10. Salir( to leave). él/ella_________ 11. ...
December 6, 2012

Math
y/9 = 4 2/3 . Solve for Y . PLEASE HELP!
December 6, 2012

Math
One foot is 12 inches so how many times does 12 go into 60 ? When you are done dividing times your sum . 12x the answer.
December 6, 2012

math
LW=9 2L+2W=30 that is for a rectangle. 2*L/9+2L=30 20L=270 L=13.5, W=13.5/9=you do it.
December 6, 2012

Child day care
12. Which of the following is a factor that's very important to high-quality child care, but not often covered in state licensing regulations? A. The group size B. A fire safety clearance C. The staff-to-child ratio D. An annual visit by a representative of the licensing ...
December 6, 2012

Child day care
Plz sum1 answer my question
December 5, 2012

Child day care
10. Which of the following accreditation organizations does not have its headquarters in the United States? A. NAEYC B. AMS C. AMI D. CWLA
December 5, 2012

Physical Science- Help Please!
Suppose that you are given a 100 gram sample of a radioactive substance with a half-life of 32 days. How many grams will be left after 192 days?
December 5, 2012

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