Tuesday

March 31, 2015

March 31, 2015

Total # Posts: 451

**Trig**

How do you derive this identity? Cos(t)=1-sin^2(t/2)
*March 11, 2015*

**Persuasive Essay**

Should violent video games be prohibited from sale?
*October 18, 2014*

**calculus**

Use iterated integral to find the area enclosed by r=2sin2(theta). How do i graph this?
*October 15, 2014*

**calculus**

Z=square root of(x^2+y^2) + xy Find the partial derivatives: x, xx, y, yy, xy. Thanks.
*September 24, 2014*

**math**

The domain and range of ln(4-x-y). Thanks.
*September 24, 2014*

**math**

Z=square root of (x^2+y^2) + xy Find the partial derivatives: x, xx, y, yy, xy. Thanks.
*September 24, 2014*

**math**

But why wouldnt the answer be just xe^y cos(xy)? if the partial derivative with respect to x is just ye^y cos(xy).
*September 23, 2014*

**math**

The partial derivative with respect to y for z=e^y sin(xy) is: zy= xe^y cos(xy) + e^y sin(xy) How do i get to this answer? Thanks.
*September 23, 2014*

**math**

Find the rectangle with the maximum area inside the ellipse x^2/16 + y^2/4=1. Thanks.
*September 21, 2014*

**physics**

If a 2kg car with a momentum of 12kg m/s collides with a stationary 4kg car, the total momentum after the collision will be?
*September 18, 2014*

**Statistics – Lab Week 2**

Thanks for the help...
*September 12, 2014*

**Statistics ¨C Lab Week 2**

The corelation coefficient is: r=0.9982 Step 1: Find X⋅Y, X^ 2 and Y ^2 as it was done in the table below. X Y X⋅Y X⋅X Y⋅Y 67.273 69.78 4694.30994 4525.656529 4869.2484 0.764 1.40 1.0696 0.583696 1.96 2.533 4.21 10.66393 6.416089 17.7241 63.000 61.00 ...
*September 12, 2014*

**Statistics – Lab Week 2**

11. Using the empirical rule, 68% of male heights should be between what two values? Either show work or explain how your answer was calculated.
*September 12, 2014*

**Algebra**

x(a+b+2) (x+3)(a+b)
*September 12, 2014*

**equations**

Exact result: 3N/16 = 24
*September 12, 2014*

**math**

True
*September 12, 2014*

**Algebra**

Solution for the variable b b=a
*September 12, 2014*

**physics**

The vertical acceleration of a projectile A)equals g pointing sometimes upwards and other times downwards. B)equals g pointing upwards C)is zero. D)equals g pointing downwards E)continuously increases. Thanks!
*September 11, 2014*

**Accounting 9**

41
*September 9, 2014*

**physics**

Thanks!
*September 3, 2014*

**physics**

A child, who is 45 m from the bank of a river is being carried downstream by the river's swift current of 1.0 m/s. As the child passes a lifeguard on the river's bank, the lifeguard starts swimming in a straight line until she reaches the child at a point downstream. ...
*September 3, 2014*

**Math**

If a hallway is 90 feet long & 7 feet wide and it takes 1/2 ounce of cleaning solution to clean 1 square foot, how much cleaning solution is needed to clean the hallway?
*July 10, 2014*

**physics**

croquet ball must have a set mass of 0.50 kg. a red ball moving at 10.0 m/s, strikes an at-rest green ball head on. The red ball continues moving at 1.5 m/s after it hits the green ball. What is the final speed of the green ball?
*May 15, 2014*

**Milford DE **

#6 Plot Story map for the other wife
*March 26, 2014*

**Visual Basic**

Write a statement that assigns the length of an array named strAddressBook to a variable named intAddressCount.
*March 5, 2014*

**Computers**

Write a statement that assigns the length of an array named strAddressBook to a variable named intAddressCount.
*March 5, 2014*

**chemistry**

very hot sinc will react with steam to form zinc oxide and hydrogen. If 5.4 liters of hydrogen was used to use up 20 g of zinc completely. What is the percent yield of this process
*February 12, 2014*

**20th century Europe**

The European dominance was replaced by what is also known as the globalization?
*February 1, 2014*

**20th century Europe**

to describe the international events and the economic, intellectual and cultural developments in the twentiet-first century
*February 1, 2014*

**20th century Europe**

The 20th century European dominance was replaced by what?
*February 1, 2014*

**american government**

the professional qualification model in the selection of judges holds that
*January 12, 2014*

**Business math**

Using the price per dinner that you determined in the previous question, calculate the following. If Epicure offers a $1-off coupon in a newspaper advertisement, what markdown percent does the coupon represent? (Round percent to the nearest tenth.)
*September 13, 2013*

**Physics**

A rock is ejected vertically upward at 40 m/s. At what time is the rock moving at 20 m/s upward.
*July 1, 2013*

**algebra**

Question Four x - 7y = 15 -3x + 21y = - 45
*May 29, 2013*

**economics**

Bob and his dad visited the hardware store on Saturday. They observed the following transactions: Mr. Harris bought 4 for 0.50, Mrs. Clarke bought 21 for $1.00, Mr. Montaro bought 1,134 for $2.00 and Ms. Park bought 450 for $1.50 What were they buying?
*May 19, 2013*

**American National government**

According to the trustee model of representation, members of Congress must do what
*May 5, 2013*

**math**

find the value of x in the equation 6x +4(70-x)=300
*April 4, 2013*

**Intro to Logic**

10. A strongly supported claim in science should be regarded as
*March 30, 2013*

**math**

simplifying expressions
*February 23, 2013*

**macro-economics**

1.In an attempt to curb the problem of unemployment and win the forthcoming elections the government of the republic of zambia has decided to hire unemployed workers who had previously been receiving unemployment benefits as government employees and will now pay them to do ...
*February 13, 2013*

**political science**

Critically evaluate plato's justification of rule by philosopher kings. Please help its needed the soonest
*February 5, 2013*

**science**

What is science
*January 27, 2013*

**chemistry**

balance net Ionic solution AgNo3 + NaOH
*January 25, 2013*

**political science**

is politics an art or a science? give proper reasons for chosen side.(its an essay)
*January 17, 2013*

**political science**

what are the argument for and against politics being a science
*January 16, 2013*

**political science**

Is politics a science or not? Give a reasons for answer
*January 15, 2013*

**economics**

John has a job that requires him to travel 3 of every 4 weeks. He has an annual budget and can travel either by train or by plaine. The airline on which he typically flies has a frequent traveler programme that reduces the cost of his tickets according to the number of milels ...
*January 2, 2013*

**economics**

John has a job that requires him to travel 3 of every 4 weeks. He has an annual budget and can travel either by train or by plaine. The airline on which he typically flies has a frequent traveler programme that reduces the cost of his tickets according to the number of milels ...
*January 2, 2013*

**Business Math**

Being inventory of 12 sets of paints at a cost of $1.50 each. During the year the store purchased 4 sets at $1.60, 6 sets at $2.20, 6 sets at $2.50, and 10 sets at $3.00. By the end of the year, 25 sets were sold. Caculate the number of paint sets in stock and the cost of ...
*December 26, 2012*

**Business Math**

Lee Corp. purchased 10 key chains on January 1, 2010 for $9.00 each and 5 key chains were purchased on December 1, 2010 for $10.00. Seven were sold. What would be the inventory amount for LIFO, what would be the inventory amount for FIFO
*December 26, 2012*

**Business Math**

Assume you lease a $45,000 BMW. Using a straight- line method with a 3- year ueful life and is a $16, 675 residual value, what is the book value of the BMW after the first year?
*December 20, 2012*

**Business Math**

Jim Clinnin purchased a used RV with 19,000 miles for $46,000. Originally the RV sold for $70,000 with a residual value of $20,000. After subtracting the residual value, depreciation allowance per mile was $.86. How much was Jim's purchase price over or below the book value?
*December 20, 2012*

**Business Math**

Jim Company bought a machine for $36,000with an estimated lofe of 5 years. The residual value of the machine is $6,000 Calculate (a) the annual depreciation and (b) the book value at the end of year 3. Assume straight-line depreciation
*December 20, 2012*

**Business Math**

From the following facts, complete a depreciation schedule using thee straight - line cost of Highlander- $30,000 residual value- $6,000 estimated life- 8 years
*December 20, 2012*

**business**

A usefful personal and business investment site with in-depth detail on personal financial planning. After reading a March 19,2009 , article"Preparing a Portfolio for Retirement," Arlene Supple, 47 years old, is evaluating her retirement portifolio. She paid her ...
*December 9, 2012*

**math**

a computer store sold a total of 300 items last month. the store sold six times as amny hard drives as they did CD-ROM drives, andhalf as many floppy drives as hard drives. based on this information, how many of each items were sold
*December 9, 2012*

**math**

103/5
*December 8, 2012*

**math**

10 12/15
*December 8, 2012*

**math**

subtract the fraction 74/5 from the fraction 18 6/15 and reduce your answer to the lowest terms.
*December 8, 2012*

**math**

add the fractions 2/3, 3/8, and 5/12 and reduce your answer to the lowest terms
*December 8, 2012*

**math**

a lumberyard makes picnic tables for $87.00 and sells them for $127.89. what is the percent markupbon each picnic table based on cost?
*December 8, 2012*

**math**

convert 5/8 to a decimal
*December 8, 2012*

**math**

convert 5/8 to a decimal
*December 8, 2012*

**Business Math**

John Roe, an employee of the Gap, loans $3000 to another employee at the store. He will be repaid at the end of 4 years with interest at 6% compounded quartly. How much will John be repaid?
*December 5, 2012*

**Business Math**

Lee Willis loaned Audrey Chin $16000 to open Snip Its Hair Salon. After 6 years, Audrey will repay Lee with 8% interest compounded quartly. How much will Lee receive at the end of 6 years?
*December 5, 2012*

**Business Math**

Lee Holmes deposited $ 15,000 in a new savings account at 9% interest compounded semiannually, At the beginning of year 4, Lee deposites an additional $40000 at 9% interest compounded semiannually. At the end of the 6 years what is the balance in Lee;s account
*December 5, 2012*

**english**

number 4 is true!
*November 18, 2012*

**Chemistry**

find the volume of 56.4 g of a substance that has a density of 2.42 g/mL
*November 8, 2012*

**psych**

According to your text, our main sources of ethical standards are religion and A. philosophy. C. culture. B. social habit. D. circumstances
*November 1, 2012*

**economics**

According to your text, our main sources of ethical standards are religion and A. philosophy. C. culture. B. social habit. D. circumstances
*November 1, 2012*

**HELP!! math 5**

convert 5/8 to a decimal
*October 17, 2012*

**physics**

A 301-kg motorcycle is accelerating up along a ramp that is inclined 30.0º above the horizontal. The propulsion force pushing the motorcycle up the ramp is 3420 N, and air resistance produces a force of 230 N that opposes the motion. Find the magnitude of the motorcycle&#...
*October 3, 2012*

**physics**

A 301-kg motorcycle is accelerating up along a ramp that is inclined 30.0º above the horizontal. The propulsion force pushing the motorcycle up the ramp is 3420 N, and air resistance produces a force of 230 N that opposes the motion. Find the magnitude of the motorcycle&#...
*October 3, 2012*

**math**

a rectangular garden has a length of 9 meters and a width of 7 meters. inside the garden is a square patch of roses. the patch is a square with sides of 4 meters. what is the area of the part of the garden NOT covered by roses?
*September 29, 2012*

**Math**

Find the greatest common factor of each pair of numbers. 25 and 140
*September 18, 2012*

**psychology**

Write a 350- to 700-word paper that explains which of Erikson’s eight stages of life you believe you are currently in. Explain why you think you are at that stage and describe that stage in your paper. What is the central question posed during that stage? How have you ...
*September 16, 2012*

**Physics**

A plane leaves Seattle, flies 85 mi at 22 degrees north of east, and then changes direction to 48 degrees south of east. After flying 115 mi in this new direction, the pilot must make an emergency landing on a field. The Seattle airport facility dispatches a rescue crew. ...
*September 12, 2012*

**physics**

A plane leaves Seattle, flies 85 mi at 22 degrees north of east, and then changes direction to 48 degrees south of east. After flying 115 mi in this new direction, the pilot must make an emergency landing on a field. The Seattle airport facility dispatches a rescue crew. a) In...
*September 12, 2012*

**Calculus**

I'll be glad to help you,but there's no sides or measurement?
*August 24, 2012*

**arithmetic**

each groups consist of 10 block so 10+10+10+10+10=50 10+10+10+10+10=50 =100 and anyone groups equal to 10 so therefore 100 = 10 small block =1
*August 22, 2012*

**Pharmacy Math**

If you diluted 95ml of a 7% benzocaine lotion to 5% how much could you produce? ___
*July 30, 2012*

**Pharmacy Math**

How much stock solution of hydrogen peroxide 8% will you need to make 320ml of hydrogen peroxide 2% solution? ____
*July 30, 2012*

**Pharmacy Math**

35ml of active ingredient is mixed with distilled water to total 300ml. What is the final concentration (v/v)? ____
*July 30, 2012*

**Pharmacy Math**

320ml of active ingredient is added to 680ml of an alcohol based solution. What is the final strength (v/v)? ___
*July 30, 2012*

**pharmacy math**

I will go back to screen name please help
*July 30, 2012*

**pharmacy math**

15g of potassium chloride is diluted in 2L of sterile water for injection. What is the final perccent strength (w/v)? ____
*July 30, 2012*

**HIS204**

veto
*July 29, 2012*

**Calc**

Check using the following formula: (5^g(x))'= (ln5)*(5^g(x))*(g'(x))
*July 18, 2012*

**Calc**

Compute the derivative of f(x)=5^x^2+1 using logarithmic differentiation.
*July 18, 2012*

**Business Calculus**

Determine the intervals where f(x)=e^-x^2/2 is increasing and decreasing
*July 18, 2012*

**math forgot questions**

a new refrigerator costs $2495. It may be purchased for $95 down and 24 monthly payments of $125 eachI forgot questions What is the total cost of the refrigerator if you finance it? b) What are the finance charges (total interest)?
*July 6, 2012*

**math **

a new refrigerator costs $2495. It may be purchased for $95 down and 24 monthly payments of $125 each
*July 6, 2012*

**Managerial Accounting**

The following information was drawn from the year-end blance sheet of Desoto Company: Account Title` 2012 2011 Investment securities $35,500 $30,000 Equipment 235,000 220,000 Buildings 845,000 962,000 Land 80,000 69,000 Additional Information regarding transactions occurring ...
*June 20, 2012*

**Physics**

Standing 2.5 m in front of a plane mirror with your camera, you decide to take a picture of yourself. To what distance should the camera be focused to get a sharp image.
*May 30, 2012*

**Quiz**

Lucia works for a lawyer who depends on her for everything; answering phones, planning business trips, proofreading documents, and scheduling appointments. Lucia works for a lawyer who depends on her for everything: answering phones, planning business trips, proofreading ...
*May 15, 2012*

**Math**

Write a quadratic equation having the given numbers as solutions. -5 and -2 The quadratic equation is: __=0 Thank you.
*April 21, 2012*

**Algebra**

During the first part of a trip, a canoeist travels 57 miles at a certain speed. The canoeist travels 13 miles on the second trip at a speed 5 mph slower. The total time for the trip is 5 hrs. what was the speed on each part of the trip? The speed on the first part is? The ...
*April 21, 2012*

**Algebra**

-5 and-2 write a quad equation. -√5,6√5 write quad equation Tick, tick..I'm doomed..
*April 21, 2012*

**Chemistry**

In a gas chromatography experiment, an internal standard was used. Which is considered the blank in this experiment:- 1) Internal standard in diluent or 2) Diluent only or are 1) & 2) both acceptable?
*April 15, 2012*

**Chemistry**

Do the following parameters indicate how stable a substance is? 1) Viscosity of a substance 2) Optical rotation of a substance
*April 15, 2012*

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