Tuesday

October 25, 2016
Total # Posts: 602

**Volumes of pyramids and cones**

to find height: volume = 1/3 * [Base Area] * height so... v = 1/3 * [L * w] * height 88 = 1/3 * [8 *4.6] * height 88 = 12.266667 * height 88/12.266667 = height 7.1739 m = height

*February 19, 2014*

**science**

using the kinematic equation: Vf = Vo + at Vf = final velocity = 0m/s because she comes to a stop Vo = initial velocity = 5m/s as she is jogging a = acceleration (or in this case deceleration) t = time elapsed = 2 s so... Vf = Vo + at 0m/s = 5m/s + a * 2s -5m/s = a * 2s (-5m/s...

*February 18, 2014*

**algebra**

A newspaper carrier has $4.00 in change. He has two more quarters than dimes but five times as many nickels as quarters. How many of coins of each type does he have. This is what I got so far and then I get lost. dimes = x quarters = x+2 nickels = 5(x+2) 10x+25(x+2)+5*4(x+2)= ...

*February 12, 2014*

**Research and Statistics**

What factors influence the size of the t-statistics( mean difference, variance, sample size) and which way?

*February 10, 2014*

**Science??!!! :/**

Wow your freaking stupid how can you not know ????

*January 23, 2014*

**math**

If J=12, what is J/3+3?

*January 22, 2014*

**math**

MOVIE CLUB Members of a movie rental club pay $15 annual membership fee and $2 for new release movies. Non Members pay $3 for new release movies. a. Write a system of linear equations that represent this situation. b. When is it beneficial to have a membership?

*January 8, 2014*

**Chem**

How do you determine the absolute error of the equivalence point determined by a graph?

*October 29, 2013*

**Physics**

You are holding a bulletin board weighing 7.01 N in place against a wall while your friend secures it to the wall. To keep it from slipping, you apply a force perpendicular to the bulletin board, pressing it directly into the wall. How large must this force be if the ...

*October 2, 2013*

**Physics**

You are holding a bulletin board weighing 7.01 N in place against a wall while your friend secures it to the wall. To keep it from slipping, you apply a force perpendicular to the bulletin board, pressing it directly into the wall. How large must this force be if the ...

*October 1, 2013*

**Math**

There are 62 students in a football league. How many teams of 6 can they make.

*October 1, 2013*

**algebra1**

the problem is 5f+7 less than or equal to 22. can anyone please work this out for me and check it for me? and what i mean by checking it is like when you get the answer you check it and make sure its write.

*October 1, 2013*

**physics**

What would the density of a sphere of radius 1.07 m have to be in order to produce a gravitational acceleration of 1.01 m/s2 at the surface of the sphere?

*October 1, 2013*

**physics**

What would the density of a sphere of radius 1.07 m have to be in order to produce a gravitational acceleration of 1.01 m/s2 at the surface of the sphere?

*October 1, 2013*

**Geometry**

My test was different but yes B is correct. Here is all the multiple choice on mine! I hope this helps. 1. D 1:727 2. D The polygons are not similar 3. A Triangle JMK~Triangle MLK~ Triangle JLM 4. A a=400/21, b=580/21 5. B X=10.5

*September 30, 2013*

**Math**

Find two numbers the exact answer is between 4 x 94

*September 23, 2013*

**accounting**

Adjusting entries. You have been retained to examine the records of Kathy's Day Care Center as of December 31, 20X3, the close of the current reporting period. In the course of your examination, you discover the following: •On January 1, 20X3, the Supplies account had...

*August 12, 2013*

**Finance**

Revised answer: 815*.025*8/12= $13.79 $8.00*4= $32.00 32.00 - 13.79= $18.42 net cost

*August 8, 2013*

**Finance**

Determine the annual net cost of this checking account? Annual interest of 2.5% paid if balance exceeds $750, $8 monthly fee if account falls below minimum balance, average balance $815, account falls below $750 during 4 months. Is my answer correct? 815 * .025 * 4/12=$6.69 ...

*August 8, 2013*

**math**

a small farm field is a square measuring 340 ft on a side. what is the perimeter of the field?

*July 26, 2013*

**Math**

(4k exponent2) exponent5

*June 24, 2013*

**Math**

You are the accountant for Suite Dreams, a retail furniture store. Recently, an order of sofas and chairs was received from the manufacturer with terms of 3/15, n/45. The order amounted to $230,000, and Suite Dreams can borrow money at 13% ordinary interest. How much can be ...

*June 20, 2013*

**Math**

You are the accountant for Suite Dreams, a retail furniture store. Recently, an order of sofas and chairs was received from the manufacturer with terms of 3/15, n/45. The order amounted to $230,000, and Suite Dreams can borrow money at 13% ordinary interest. How much can be ...

*June 20, 2013*

**Math**

You are the accountant for Suite Dreams, a retail furniture store. Recently, an order of sofas and chairs was received from the manufacturer with terms of 3/15, n/45. The order amounted to $230,000, and Suite Dreams can borrow money at 13% ordinary interest. How much can be ...

*June 19, 2013*

**Math**

What is the net price factor for trade discount of 25/15/10? .75*.85*.90=.57375 Is my answer correct?

*May 25, 2013*

**Math**

Fantasia Florist Shop purchases an order of roses with a list price of $2,375 less trade discounts of 15/20/20. What is the amount of trade discount and what is the net dollar amount of that rose order? Trade discount: .85*.80*.80=.544 2375*.544=1292 Answer is $1292.00 Net ...

*May 25, 2013*

**Math**

Natureland Garden centr buy lawn mowers that list for $679.95 less 30% trade discount. What is the dollar amount of the trade discount and what is the net price of each lawn mower? Trade discount: 679.95*.30+ 203.99 Net Price: 679.95 - 203.99= 475.96 Is my answers correct?

*May 25, 2013*

**Financial Literacy**

Its 1000

*May 15, 2013*

**Math**

3(n-2)+7=5

*May 9, 2013*

**Math**

Can you help me with this problem please? I would thank you if you can explain it to me. You want to tile your kitchen floor. The floor measures 12ft by 9ft. How many tiles each a square with side 1 1/2 ft should you purchase for the job?

*May 9, 2013*

**Math**

2.8x+75=5.3x+15

*May 9, 2013*

**Math**

Find the perimeter of a triangle with sides 2ft 4in, 3ft, and 4ft 6in.

*May 9, 2013*

**Math**

Find the area of a circular rug that is 12ft in diameter.

*May 9, 2013*

**Math**

8-3x=2x-8

*May 9, 2013*

**Math**

Finally!! Thank you!!

*May 9, 2013*

**Math**

3x-2(3x-2) -3x+6x-4 -3x+4 Ms. Sue this is what I did. Do you think is correct?

*May 9, 2013*

**Math**

Okay sorry studying for finals. I am going to try and do this one by myself. Thank you :)

*May 9, 2013*

**Math**

Can I get help with this one :/... 3x-2(3x-2)

*May 9, 2013*

**Math**

Thank you very much Ms. Sue!!

*May 9, 2013*

**Math**

Can you help me with this problem please... 3y+5(y-3)+8

*May 9, 2013*

**Math**

Thank you Ms. Sue!!!

*May 9, 2013*

**Math**

Can you help me with this problem please... 8x-3(x-5)=30

*May 9, 2013*

**PHYSICS!**

The quantity of heat that changes the temperature of a mass of a substance is given by , where is the specific heat capacity of the substance. For example, for , . And for a change of phase, the quantity of heat that changes the phase of a mass is , where is the heat of fusion...

*May 2, 2013*

**Physics!**

Imagine a giant dry-cleaner's bag full of air at a temperature of -31 floating like a balloon with a string hanging from it 15 above the ground. Estimate what its temperature would be if you were able to yank it suddenly back to Earth's surface.

*May 2, 2013*

**Math**

One-ninth of Polymer Plastics’ sales are made in New England. If New England sales amount to $600,000, what are the total sales of the company?

*May 1, 2013*

**math**

ronnie swam 2.5 laps on monday and swam twice as far on tuesday how far did he swim in all?

*April 23, 2013*

**College algebra**

Solve equation by expressing each side as a power of the same base & then equating exponents. e^x+5=1/e^6

*April 23, 2013*

**weber state university**

CH2=CH-CH2CH3+H2O What is the product of the reaction above

*April 11, 2013*

**Algebra 3**

find the sum of each finite arithmetic series 8+9+10+...+15

*April 3, 2013*

**criminal justice**

What would a careful researcher ask about a Web site called "Facts about pesticides and health" published by the Coalition for a Chemical-Free Environment?

*March 12, 2013*

**algebra**

I have to solve this equation using substitution. 3x+5y=10 2x+ 1/2y=24 This is all one problem

*March 10, 2013*

**7th grade math Ms. Sue please last questions!**

56.25

*February 13, 2013*

**Differential Equations**

Locate the bifurcation values of a for the one-parameter family and describe the bifurcation that takes place at each such value. dy/dt=e^(-y^2)+a I got that the equilibrium points will be at -sqrt(ln(a)). I don't know if that is fine. I took the partial derivative with ...

*February 7, 2013*

**Differential Equations**

Locate the bifurcation values of a for the one-parameter family and describe the bifurcation that takes place at each such value. dy/dt=e^(-y^2)+a I got that the equilibrium points will be at -sqrt(ln(a)). I don't know if that is fine. I took the partial derivative with ...

*February 7, 2013*

**economics**

If capital’s share of income is 25% and labor’s share of income is 75%, the stocks of both capital and labor increase by 50% (K/K = N/N = 0.5), and there is no technology growth, at what rate will potential output grow? Will the capital-labor ratio ...

*February 4, 2013*

**Differential Equations**

a) Sketch the phase line for the differential equation dy/dt=1/((y-2)(y+1)) and discuss the behavior of the solution with initial condition y(0)=1/2 b) Apply analytic techniques to the initial-value problem dy/dt=1/((y-2)(y+1))), y(0)=1/2 and compare your results with your ...

*February 3, 2013*

**Differential eqns**

I read the info, but it doesnt talk about functions with no equilibrium point.

*February 3, 2013*

**Differential eqns**

a) Sketch the phase line for the differential equation dy/dt=1/((y-2)(y+1)) and discuss the behavior of the solution with initial condition y(0)=1/2 b) Apply analytic techniques to the initial-value problem dy/dt=1/((y-2)(y+1))), y(0)=1/2 and compare your results with your ...

*February 3, 2013*

**Differental Equations**

a) Sketch the phase line for the differential equation dy/dt=1/((y-2)(y+1)) and discuss the behavior of the solution with initial condition y(0)=1/2 b) Apply analytic techniques to the initial-value problem dy/dt=1/((y-2)(y+1))), y(0)=1/2 and compare your results with your ...

*February 3, 2013*

**Differential Equations**

a) Sketch the phase line for the differential equation dy/dt=1/((y-2)(y+1)) and discuss the behavior of the solution with initial condition y(0)=1/2 b) Apply analytic techniques to the initial-value problem dy/dt=1/((y-2)(y+1))), y(0)=1/2 and compare your results with your ...

*February 3, 2013*

**math**

what is the math trivia of direct square variation?

*February 2, 2013*

**Differential Equations**

For the following initial value problem: dy/dt=1/((y+1)(t-2)), y(0)=0 a)Find a formula for the solution. b) State the domain of definition of the solution. c) Describe what happens to the solution as it approaches the limit of its domain of definition. Why can't the ...

*January 31, 2013*

**Differential Equations**

If y(t) depends on what C is, then how this equation doesn't contradict the uniqueness theorem if it has many solutions?

*January 31, 2013*

**Differential Equations**

Consider the differential equation: dy/dt=y/t^2 a) Show that the constant function y1(t)=0 is a solution. b)Show that there are infinitely many other functions that satisfy the differential equation, that agree with this solution when t<=0, but that are nonzero when t>0...

*January 31, 2013*

**Differential Equations (Another) Cont.**

For the following initial value problem: dy/dt=1/((y+1)(t-2)) a)Find a formula for the solution. b) State the domain of definition of the solution. c) Describe what happens to the solution as it approaches the limit of its domain of definition. Why can't the solution be ...

*January 31, 2013*

**Differential Equations**

Consider the differential equation: dy/dt=y/t^2 a) Show that the constant function y1(t)=0 is a solution. b)Show that there are infinitely many other functions that satisfy the differential equation, that agree with this solution when t<=0, but that are nonzero when t>0...

*January 31, 2013*

**Differential Equations**

For the following initial value problem: dy/dt=1/((y+1)(t-2)) a)Find a formula for the solution. b) State the domain of definition of the solution. c) Describe what happens to the solution as it approaches the limit of its domain of definition. Why can't the solution be ...

*January 31, 2013*

**Differential Equations**

Consider the differential equation: dy/dt=y/t^2 a) Show that the constant function y1(t)=0 is a solution. b)Show that there are infinitely many other functions that satisfy the differential equation, that agree with this solution when t<=0, but that are nonzero when t>0...

*January 31, 2013*

**science**

19. The term chromatin refers to a. the color of certain cells b. chromosomal DNA c. the fluid within the nucleus d. ribosomal RNA

*January 28, 2013*

**Math **

The charges on a monthly water bill came to $0.86 per cubic meter of water used, plus a service charge of $4.49. Last month Jeremy's water bill came to $69.85, how many cubic meters of water had he used?

*January 25, 2013*

**Differential Equations**

The velocity v of a freefalling skydiver is well modeled by the differential equation m*dv/dt=mg-kv^2 where m is the mass of the skydiver, g is the gravitational constant, and k is the drag coefficient determined by the position of the driver during the dive. (a)Find the ...

*January 24, 2013*

**Differential Equations**

Find the general solution of the differential equation specified. 1) dy/dt= 1/(ty+1+y+1) 2) dy/dx=sec y I got y(x)=arcsin(x) for the second one. I'm not sure what to do with the first one.

*January 22, 2013*

**Consumer/Bus Math Sem 1 (Standard)**

Pat worked 43 hours and received $7.25 per hour for regular pay and time-and-a-half for all hours over 40 hours. What were her weekly earnings? $22.83 $322.63 $269.75

*December 18, 2012*

**Algebra 8th grade.**

how to find the scale factor when not given one HELP THIS IS MY MATH HOMEWORK & ITS DUE FIRDAY 4-12-13:-0

*November 28, 2012*

**Math**

A rocket is launched from ground level with an initial vertical velocity (v0) of 176 ft/s. After how many seconds will the rocket hit the ground? (Hint: h(t) = -16t2 + v0t + h0)

*November 26, 2012*

**Statistics (urgent)**

A beverage comopany uses a machine to automatically fill 1-liter bottles. Assume that the population of volumes is normally distributed. The company wants to estimate the mean volume of water to within 1 ML. Determine the minimum sample size required to construct a 95% ...

*November 18, 2012*

**statistics**

A survey of adults found that 35% say that their favorite sport is professional football. You randomly select 120 adults and ask them if their favorite sport is professional football. Find the probability that more than 30 people answer yes.

*November 18, 2012*

**Math**

I don't know thats why im asking you

*November 8, 2012*

**Physics HELP!!**

Elena, why do you have a 13 & 23 beside F? Or is this just to distinguish between the two forces

*October 16, 2012*

**physics**

How much heat is necessary to change 500g of ice at-10 celsius to water at 20 celsius?

*October 15, 2012*

**calculus**

A fence 8 feet tall stands on level ground and runs parallel to a tall building. If the fence is 1 foot from the building, find the shortest ladder that will extend from the ground over the fence to the wall of the building.

*October 11, 2012*

**Managarial Finance**

"Stephenson Real Estate Company was founded 25 years ago by the current CEO, Robert Stephenson. The company purchases real estate, including land and buildings, and rents the property to tenants. The company has shown a profit every year for the past 18 years, and the ...

*October 8, 2012*

**calculus derivative **

find the derivative of: y=(x/(x+1))^3

*October 8, 2012*

**calculus derivative HELP!**

Find the derivative of: y=2sqrt(x)-(1/x)

*October 8, 2012*

**FREE BODY DIAGRAM calculus**

A car is traveling north towards an intersection at 60mph at the same time a truck is headed east toward the same intersection at 45mph. Find the rate of change of the distance between the car and truck when the car is 3 miles south of the intersection and the truck is 4 miles...

*October 7, 2012*

**calculus PLEASE help !**

find the equation for the line tangent to the curve at the given point. y=((x^2)+1)/((x^2)-1) at (2, 5/3)

*October 7, 2012*

**calculus please help me**

find derivative of: f(x)=e^2 I know that b/c e is a constant the answer is 0, but how do I show that in my work?

*October 7, 2012*

**physics**

To plot the potential energy, simply plug your givens into the equation U=(1/2)kx^2. You should get a parabola that goes to 0 in the center. To determine the turning points of the block, use the law of conservation of energy. You know that Ui+Ki = Uf+Kf since there is no ...

*October 7, 2012*

**biology**

I am doing a project on Eukarya, Bacteria and Viruses where I have to explain why they are different. I know of their structural and reproductive differences but I am not sure about their uses or funtions. Please help!!

*September 25, 2012*

**math**

exam rose from 20.8 to 21.1 what percent increase was this nearest to the tenth?

*September 24, 2012*

**Chemistry**

thank you so much for the explanation

*September 18, 2012*

**Chemistry**

I need help please I am so confused. How much dry solute would you take to prepare each of the following solutions from the dry solute and the solvent? I know the MM of KCl is 74.55 107g of 0.535m KCl

*September 18, 2012*

**Chemistry**

thank you so very much

*September 17, 2012*

**Chemistry**

To what volume should you dilute 43.5mL of a 4.20M KI solution so that 24.0mL of the diluted solution contains 2.80g of KI? Please if you can explain it to me I am so confused.

*September 17, 2012*

**Chemistry**

A sample of 2.00 mol O2 (assumed perfect) is originally confined in a 20.0L at 273K and 2.24 atm. it undergoes reversable adiabatic expansion until the volume has increased by a factor of 3. Calculate q, w, delta u, delta h, and delta t. Cv=7/2R and cp=5/2R

*September 6, 2012*

**calculus**

Find the limit if it exist lim t-->pi/3 (tan(t)/t)+1

*September 6, 2012*

**calculus**

Find a delta for any epsilon given: x^2+x-6/x+3 and x0=-3

*September 6, 2012*

**chemistry**

write a step by step procedure explaining how you will separate the sand, potassium chloride, and iron

*September 6, 2012*

**math**

what would the following equation be in vertex form. y=-9x squared+72x+81. I have tried for hours and i cannot figure it out

*September 1, 2012*

**Physics**

The left ventricle of the heart accelerates blood from rest to a velocity of + 29.8 cm/s. (a) If the displacement of the blood during the acceleration is + 2.68 cm, determine its acceleration (in cm/s2). (b) How much time does blood take to reach its final velocity?

*August 31, 2012*