Monday

December 22, 2014

December 22, 2014

Total # Posts: 117

**chemistry**

a solution consisting of 1.6M NaNO3 and 1.0M of Na(NO3)2 please help
*November 10, 2014*

**math**

from a boat, the angle of elevation of the foot of a lighthouse on the edge of a cliff is 34 degrees. if the cliff is 150m high, how far from the base of the cliff is the boat
*October 29, 2014*

**math**

GCF of each pair of polynomials 27 y3z and 45 x2y
*September 19, 2014*

**Math**

From 1990 to 2006, the population, p (in millions), of a large city can be modeled by p = 1.1(1.05)t, where t is the number of years since 1990.
*August 24, 2014*

**Algebra**

Pytheorem Quadratic Help me solve this problem x^2(2x+6)(2x+4)
*August 11, 2014*

**Algebra**

Please help me find the GCF of these two expressions 20x^5u^7 and 28x^3v^2u^4
*August 11, 2014*

**Algebra**

Please check and see if my answer are correct 1). 24v^2w^5x^8-20v^7w^9= -4v^2w^5(5v^5w^4-6x^8) 2). 81-25z^2= (5z+9)(9-5z) 3). 5y^3-7y^2-15y+21=(y^2-3)(5y-7) 4). x^2+4x-12= (x+6)(x-2) 5). 3x^2-26x+16= (x-8)(3x-2) 6).4v^6+6v^5-18v^4= 2v^4(2v-3)(v+3) 7). solve for y y^2+6y+8=0 y...
*August 11, 2014*

**Algebra**

What is the GCF of these two expressions? 30w^4v^8 and 24y^3w^6v^2 Please help me figure this out
*August 11, 2014*

**Algebra**

Ok Thank you
*August 11, 2014*

**Algebra**

Help me with these two equations Solve for v 2v^2+4v-14=(v+1)^2 solve for y y^2+6y+8=0
*August 11, 2014*

**Algebra**

Need help!! Please help me figure this out What is the length of 7ft more than twice the width and an area of the rectangle is 99ft^2. Find the dimension?
*August 11, 2014*

**Algebra**

What is the GCF of these two expressions 30w^4v^8 and 24y^3w^6v^2
*August 11, 2014*

**Algebra**

How do I factor this, Please help me.9w-w^3
*August 11, 2014*

**Algebra**

Sorry Damon, I thought I was overlooked..I appreciate the help Thank you!!!
*August 11, 2014*

**Algebra**

How do I factor this, Please help me.9w-w^3
*August 11, 2014*

**Math**

thank you so much !!
*July 29, 2014*

**Math**

there are 2 sin(alpha+beta)=(sin alpha)(cos beta)+(cos alpha)(sin beta) cos(alpha+beta)=(sis alpha)(cos beta)+(sin alpha)(sin beta) these identities to derive i)sin(alpha-theta) ii)cos(alpha-theta) iii)sin2theta I just want one of them solved in steps to be able to implement ...
*July 29, 2014*

**Math**

Nope, assuming I want to prove cos2theta is cos 2theta =1-2sin^2theta cos2theta=(1-sin^2theta)-sin^2theta cos2theta=1-2sin^2theta
*July 29, 2014*

**Math**

using sin(alpha-beta)=(sin alpha)(cos beta)-(cos alpha)(sin beta) use the identity to derive the result proof for : sin(alpha-beta) PLEASE PLEASE PLEASE HELP
*July 29, 2014*

**Math**

Write a formula expressing the information: i)Rose paid twice as much as Mike I used R for Rose and M for Mike The formula I cam up with is R=2M ii)Taxes are 6 percent of income [Use T and x] So I wrote it like this T(0.06)/X iii)There are twenty times as many students as ...
*July 8, 2014*

**PreCalculus**

A wire is 200 inches long is cut into three pieces, two of equal length, each twice as long as the third. How long is the third piece?
*June 23, 2014*

**american history**

Which of the following statements about the Southern planter's world is most accurate? A. Most great planters of the Old South were self-made men. B. The stereotype of the "southern belle" is fairly accurate. C. The wives and daughter of plantation owners lived ...
*May 5, 2014*

**Chemistry**

What is the density of carbon dioxide gas at 25 C and 779 mmHg?
*April 24, 2014*

**Math**

Evaluate 3X /4 if X=2
*March 25, 2014*

**math**

describe a situation in which you might use each calculation a)9/8 divided by 2/3 b)1 and 2/3 divided by 2 and 2/3
*March 21, 2014*

**Language**

What impact do ignorance and stigma have on people who are HIV-positive in Malawi and other African countries? It'll b much helpful if you dont give links Thank u :)
*March 20, 2014*

**History**

how have the metis retain their culture in modern canada
*March 18, 2014*

**Math**

Explain how to calculate 1/4 divided by 1/8 using reciprocal fractions
*March 17, 2014*

**Math**

Explain why 0.4 divided by 0.2 has the same answer as 4 divided by 2. (Hint: Convert the decimals into fractions with a denominator of 10.)
*March 17, 2014*

**History**

I need help on a few questions.. Full sentences would be nice. 1. When was Rupert's Land given to Prince Rupert? 2.What areas of land does Rupert's land cover? 3.What is called Rupert's Land now?
*March 17, 2014*

**Science- help asap plz**

Thanks :)
*March 7, 2014*

**Science- help asap plz**

think about the role that trees play in the water cycle. what are two of the ways in which they are part of the cycle?
*March 7, 2014*

**Science- still waiting**

okay
*March 7, 2014*

**Science- still waiting**

My teacher wants different examples than that.. I don't know what other examples to write
*March 7, 2014*

**Science- still waiting**

Give 2 examples for each state of fresh water: a) solid b)liquid c) vapour?
*March 7, 2014*

**Science**

Give 2 examples for each state of fresh water: a) solid b)liquid c) vapour?
*March 7, 2014*

**scince**

As you drive down the highway you may see crows feeding on dead animals. As a result of this nutritional pattern,crows may be classified as
*February 17, 2014*

**Calculus (Math)**

Integral of (cot4x)^5 (csc4x)^7
*February 11, 2014*

**writing and linear equations**

the measure of one angle is described as twelve more than four times a number. its supplement is twice as large. find the measure of each angle.
*February 10, 2014*

**math**

I have a pizza that measures 36 by 21 that needs to cut into equal pieces with no left overs. What is the length of longest side?
*December 16, 2013*

**6th grade math**

In the cafetería , 100 milk cartons were put out for breakfast. At the end of breakfast, 27 remained.
*September 13, 2013*

**6th grade math**

At the 6th grade school dance, there are 132 boys, 89 girls, and 14 adults.
*September 13, 2013*

**chem**

Consider two identical iron nails: One nail is heated to 95 °C, the other is cooled to 15 °C. The two nails are placed in a coffee cup calorimeter and the system is allowed to come to thermal equilibrium. What is the final temperature of the two nails?
*September 12, 2013*

**Statistics**

Step 2 - Transform the sample mean into a z-score (p. 133) x̅ = 26, N = 30, σ_X=6 Z = (X- µ)/(σ_X/√N) = (24- 26)/(6/5.4772) = (-2)/(1.0955) = 1.8257 Z = - 1.83 The z-score table notes that the area between the mean of 26 and the z-score of 1.83 = ....
*June 1, 2013*

**Statistics**

Darned old Foofy! Foofy computes the x̅ (MEAN) from data that her professor says is a random sample from population Q. she correctly computes that this mean has a z-score of +41 on the sampling distribution for population Q. Foofy claims she has proven that this could not...
*June 1, 2013*

**Chemistry**

under the same conditions of temperature and pressure , does hydrogen iodide and ammonia diffuse faster? calculate the ratio of the velocities
*May 10, 2013*

**math**

An arithmetic sequence is represented in the following table. Enter the missing term of the sequence. 10,-2,-14,-26,?...
*April 16, 2013*

**physics**

hi does someone answer you with your question?
*April 7, 2013*

**Math**

If a 6 meter pole and a 3 meter pole are connected by wires from the top to bottom, how tall is the pole touching the intersecting wires?
*March 20, 2013*

**Math 209**

THE FEDERAL DEBT D IN TRILLIONS OF DOLLARS HELD BY FOREIGN AND INTERNATIONAL INVESTORS x YEARS AFTER 1970 CAN BE MODELED BY D(x) = WHERE 15 ≤x≤ 40.
*February 24, 2013*

**Chemistry**

The half-life of C-14 is 5700 years. If it took seven half lives for a sample of C-14 to decay completely, how many years would have gone by?
*January 24, 2013*

**Economics**

Owners of digital cameras have to buy memory cards in order to use the cameras. Cameras and memory cards are: A. substitutes. B. complements C. unrelated. D. elastic.
*January 16, 2013*

**chemistry**

how many silver coins weighing 26g each would take to provide 5 moles of silver
*September 19, 2012*

**math**

Can (-x – y) (x + y) be multiplied by using the difference-of-squares formula? Explain why or why not
*August 24, 2012*

**Economics**

rent
*April 12, 2012*

**calculus**

verify that y=c/x^2 is a general solution of the differential equation y'+(2/x) y=0-6y=0 then find a particular solution of the differential equation that satisfies the side condition y(1)=2
*April 10, 2012*

**calculus**

the management of a company has decided that the level of its investment should not exceed C dollars. Furthermore, managament has decided that the rate of net investment (the rate of change of the total capital invested) should be proportional to the difference between C and ...
*April 10, 2012*

**calculus**

verify that y=C1e^2x + C2e^-3 is a solution of the differential equation y''+y'-6y=0
*April 10, 2012*

**I really need help..(Algebra)**

Solve the equation. Show your work. 3m^2=-6m
*March 7, 2012*

**algebra**

What? Retype the equation.
*March 7, 2012*

**algebra**

What do you want to do with that?
*March 7, 2012*

**Algebra; HELP PLEASE!**

Solve the equation. Show your work. 3m^2=-6m
*March 7, 2012*

**Math; PLEASE HELP**

Thank you.
*March 5, 2012*

**Math; PLEASE HELP**

Solve for x. Provide an explanation, please. -X^2+36=0
*March 5, 2012*

**5th Grade Math**

2/3-7/12
*February 27, 2012*

**trig**

refer to right triangle ABC with C = 90degrees. Given a= 2 and b=√5 Find the six trigonometric functions of A. and find the angles A and B
*February 13, 2012*

**calculus**

Given a right circular cone, you put an upside-down cone inside it so that its vertex is at the center of the base of the larger cone, and its base is parallel to the base of the larger cone. If you choose the upside-down cone to have the largest possible volume, what fraction...
*January 21, 2012*

**Math, help needed**

Kate bought 3 CDs and 1 DVD at a store. Her friend Joel bought 2 CDs and 2 DVDs. If Kate spent $20 and Joel spent $22, determine the cost of a CD and DVD. ~Please provide an explanation as well. Please and thanks!
*January 19, 2012*

**Math.**

Kate bought 3 CDs and 1 DVD at a store. Her friend Joel bought 2 CDs and 2 DVDs. If Kate spent $20 and Joel spent $22, determine the cost of a CD and DVD. ~Please provide an explanation as well. Please and thanks!
*January 19, 2012*

**Algebra**

Thank you, that helped lot. :3
*January 19, 2012*

**Algebra**

Last month, Stacie spent $57 on 4 allergy shots and 1 office visit. This month she spent $9 after 1 office visit and a refund for 2 allergy shots from her insurance company. How much does an office visit cost? An allergy shot?
*January 19, 2012*

**trig**

Find theta such as tan(theta) = cot(theta+45). Thanks
*November 12, 2011*

**science**

Ok I do it 80×8=640
*November 11, 2011*

**science**

Do I ×8 andthe80
*November 11, 2011*

**science**

Which object is it
*November 11, 2011*

**science**

What do you mean ok the Bucket has 256 fluid ounces the Punch Bowl has 240 fluid ounces and Fish Tank has 640 fluid ounces and last the Sink has 512 fluid ounces
*November 11, 2011*

**science**

What object has a capacity of exactly 80 cups. 1.Bucket 2.Punch Bowl 3.Fish Tank 4.Sink
*November 11, 2011*

**7th math**

Mary earns $8 per hour.Write an algebraic expression to evaluate how much money Mary will earn if she works for 15,20,25,or 30 hours.
*May 23, 2011*

**physics**

A .50kg ball is rolling on a frictionless surface at a speed of .75m/s. it collides with a second ball with a mass of 1kg which is also moving in the same direction as the first ball with a speed of .38m/s. After the collision the firt ball continues at a reduced speed of .35m...
*March 26, 2011*

**math**

How many ways can we select a group of 4 people from a class of 27? Please explain
*March 13, 2011*

**science**

Yes a dishwasher is a wheel and axle.
*January 10, 2011*

**hca 250**

I need an example of a pain disorder (somatoform disorder). Anyone have any suggestions?
*January 5, 2011*

**calculus**

Find the derivative using the limit process y=cox find dy/dx
*November 14, 2010*

**HCA 230**

what is America cultural viewpoint on health in regards to health as organic, health as harmonious, and disease as a curse or stigma?
*October 25, 2010*

**algebra**

thank you
*October 24, 2010*

**algebra**

or y=6?
*October 24, 2010*

**algebra**

that's what i was thinking too. haha um...6y?
*October 24, 2010*

**algebra**

-144y/-24 simplified = 6 is this correct?
*October 24, 2010*

**6th grade**

What type(s) of friction oppose the motion of a fast-moving car on a road?
*October 24, 2010*

**HCA 230**

describe different coping annd support strategies for dealing with stress related medical issues. Include the following strategies action facilitating support and nurturing support. I just need to figure out what are some stress related medical issues??
*October 15, 2010*

**HCA 210**

thank you Ms. Sue
*June 27, 2010*

**HCA 210**

what are two positive patient outcomes
*June 27, 2010*

**HCA 210**

That website wasn't much help because you have to buy something to get information.
*June 21, 2010*

**HCA 210**

I am having trouble figuring out how to write a proposal for a new health care system. Any tips on how to write a proposal?
*June 21, 2010*

**physical science (light)**

1. An object 5 millimeters high is located 15 millimeters in front of a plane mirror. How far from the mirror is the image located? A. 5.0 millimeters B. 7.5 millimeters C. 15 millimeters *** D. 30 millimeters 2. Which of the following values represents an index of refraction ...
*June 10, 2010*

**HCA 210**

this is the week 7 checkpoint
*April 11, 2010*

**Chemistry**

DrBob, for your first example should that be Al(NO3)2 or Ag(NO3)2? Because you have Al on the reactant side.
*March 24, 2010*

**Physics **

A uniformly charged sphere has a potential on its surface of 410 V. At a radial distance of 20 cm from this surface, the potential is 150 V. The Coulomb constant is 8.99 × 109 N · m2/C2.What is the radius of the sphere? Answer in units of m.
*March 6, 2010*

**Chemistry**

How much heat is required to change 10 g of ice at 0o deg C to steam at 100 deg. C?
*February 23, 2010*

**chemistry**

A 43 kg sample of water absorbs 302 kJ of heat. If the water was initially at 29.8 degree celsius, what is its final temperature? sorry about before i forgot the units.
*February 5, 2010*