Monday

February 27, 2017
Total # Posts: 592

**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, that's 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 don't 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 wasn't 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 don't 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**

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 don't 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, don't 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 the 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*

**science**

Motion along a straight line, such as an axis, In this case,its the general movement of any object without the rotational component. In inertial translational motion without rotation the object always keeps the same inertial attitude. Rotation and translation together provide ...

*November 29, 2012*

**Physics**

A 16 kg box slides across the floor with an initial velocity of +7.8 m/s. It comes to a stop after sliding +14.6 m. How much friction was present?

*November 28, 2012*

**Physics**

A race car has a mass of 714 kg. It accelerates uniformly from rest, and travels 55 m in 2.95 s. What is the acceleration of the car? And, what is the net force acting on the car?

*November 28, 2012*

**seventh grade math**

if 1/2 in. = 1/3 feet then how many feet is 27 inches please someone help me ................ its drawn to scale the 27 inches

*November 28, 2012*

**7th grade math Ms. Sue please check**

plzs tell me my grade sucks I need this

*November 14, 2012*

**7th grade math**

15-(2n)=13 n=1

*November 13, 2012*

**Math**

crate #1 8cds crate #2 8cds crate #3 8cds crate #4 8cds crate #5 8cds crate #6 8cds 6 x 8 = 48

*November 13, 2012*

**chemistry characterization & analysis of aspirin**

write a balanced equation that describes an acid base reaction that would allow you to determine the moles of aspirin present in a sample

*November 13, 2012*

**math**

If sandy and Betty have 192 toys in all and Sandygive Betty 50 toys so know sandy has three times as much as betty

*November 6, 2012*

**Math**

Czarina is working part time at a pastry shop baking cupcakes. If she works for 30 hours in one week on the average, how many hours a day does she work?

*October 17, 2012*

**Math**

The following are the number of apples sold in a certain market: 96, 186, 59, 171, 62, 58, 176, 91, 183, 167, 62, and 51. How many apples should an extra store sell to have a mean of 120?

*October 17, 2012*

**PHYSICS**

Sorry theta of the incline is equal to 61.4 degrees

*October 13, 2012*

**PHYSICS**

An object with a mass of 14kg lies on a frictionless incline. A rope attached to the mass runs parallel to the incline and is connected to a wall at the top of the incline. If the rope is considered to be in static equilibrium what is the tension of the rope in newtons?

*October 13, 2012*

**child day care**

A. Staff vacations

*October 11, 2012*

**physics**

The punter on a football team tries to kick a football so that it stays in the air for a long "hang time." If the ball is kicked with an initial velocity of 25.2 m/s at an angle of 58.5° above the ground, what is the "hang time"?

*October 4, 2012*

**Math**

121 x 3/11 =

*September 25, 2012*

**Math**

If a number is added to its reciprocal, the sum is 13/6, find the number.

*September 22, 2012*

**algebra2 PLEASE**

what are three important thing for an evaluating and inequalities and abs. values please and thank you

*September 20, 2012*

**algebra**

f(x)= 1/x-2 Plug in 1 for x. I keep getting -1 but the book says the answer is 3. Please help. Thanks

*September 7, 2012*

**social studies**

Under the federal system of the Constitution, the States _____. c)retain much of their earlier authority but submit to the ultimate sovereignty of the national government d)have about as much authority as local governments do in unitary systems like Great Britain I NARROWED IT...

*September 5, 2012*

**chemistry**

3960 J of heat are added to a 27.6 g sample of iron at 25 ◦ C. What is the ﬁnal temperature of the iron? The speciﬁc heat of iron is 0.449 J/g · K. Answer in units of K

*September 2, 2012*

**Social studys**

Who was Harry Houdini

*August 28, 2012*

**Place value whole numbers**

The tens digit is three times the thousands digit.

*August 28, 2012*

**Math**

6y/y^2+y-72 divided by y^6/x-y

*August 13, 2012*

**Anatomy and Physiology**

If one solution is 1000 x as acidic as another, how many pH units would there be between the two?

*July 26, 2012*

**Science**

What is the volume of 19 grams of flourine gas at stp?

*July 12, 2012*

**College Physics**

A convergent lens forms a real image 2.41 times the size of the object. The distancebetween object and image is 62.6 cm.Find the distance of the focal point fromthe center of the lens.Answer in units of cm

*July 3, 2012*