Sunday

August 30, 2015
Total # Posts: 94

**New Light Academy**

A uniform cylindrical pipe has an external diameter of 3.6cm and an internal diameter of 2.8cm. a)Calculate the volume of the material required to construct a metre length of the pipe. b)One cubic metre of material used has a mass of 44kg.Calculate the mass of 60m of such a ...
*August 28, 2015*

**algebra**

Prove by mathematical induction that x^2n - y^2n has a factor of x+y. My answer is incomplete since i do not know what to do next. here it is: i.) for n=1 x^2(1) - y^2(1) = x^2 - y^2 = (x+y)(x-y) ii.) Assume that the proposition is true for all n=k, that is, x^2k - y^2k has a ...
*August 9, 2015*

**Trigonometry**

A segment of height 3 inches (distance from center ofchord to center of arc) has an arc of .4 radian.find the area of a segment.
*August 3, 2015*

**Chemistry **

Carbon tetracholoride is made according to the following reaction: carbon disulfide + chlorine gas yields carbon tetrachloride and disulfur dichloride. Write the correct balanced equation and then determine how many grams of CS2 are needed to make 16 kilograms of CCl4.
*July 28, 2015*

**Probability**

What is the rule for the sequence 20, 17, 13, 8, 2? I've been trying to answer it by second difference method but still don't get correct formula.
*May 10, 2015*

**Math**

Wong ran for 45 minutes in a marathon without stopping.How many seconds Wong run without stopping?
*March 26, 2015*

**Measurement&Formulas**

Maria works out for 150 minutes every Saturday.How many hours is this?
*March 26, 2015*

**algebra**

If you are paid an hourly wage of $9.00, determine an equation for finding your weekly gross pay (P)for t hours. Specify an amount between 25 and 40 hours worked for 1 week and determine your gross pay for that week.
*January 9, 2015*

**engineering**

What do you do to peel a hard boiled egg so the shell will not not not stick to the white. so you can eat the egg and not get egg shell in your mouth?
*November 20, 2014*

**science**

How do you peel a boiled egg with the shell sticking ?
*November 20, 2014*

**calculus**

find the absolute maximum and minimum of the function y=2cos(t)+sin(2t) on the interval of [0, pi/2] I have taken the derivative but I have no clue how to solve it for 0
*October 20, 2014*

**science**

how fast is mach 1 ?
*October 17, 2014*

**analogies**

Open is to close as retreat is to. I'm not sure if pursue could be the right answer
*September 16, 2014*

**Trigonometry**

116
*August 31, 2014*

**math**

an open box is to be formed out of a rectangular piece of cardboard whose length is 8 cm longer than its width to form the box,a square of side 4 cm will be removed from each corner of the cardboard then the edges of the remaining cardboard will be turned up.
*June 18, 2014*

**QuickBooks Accounting**

Describe how the QuickZoom feature of QuickBooks does or does not provide the same help in the statement of cash flows as it does in the income statement.
*May 8, 2014*

**Physics**

W1 = F s = ∆KE = 0.34KE0 W2 = (F cos 42◦)s = F s cos 42◦ = 0.34∆KE0 cos 42◦ = 0.25∆KE0 Therefore, there is an 25% increase in kinetic energy.
*March 21, 2014*

**maths literacy,business,economics,accounting**

Which career i must choose
*January 29, 2014*

**Maths literacy,life science,history,geography**

which carreers are available for this subject,i want 2 choose 1 of it
*January 25, 2014*

**math**

can I get examples of phythagorem theory
*January 5, 2014*

**Statistics**

The mean length of the first 20 space shuttle flights was about 7 days with a standard deviation of about 2 days. Using Chebychev's theorem, at least how many of the flights lasted between 3 and 11 days.
*November 16, 2013*

**physics**

motion that has no acceleration 13 letters only
*July 29, 2013*

**types of buisness writing**

Give me an example on how to Draft an e-mail of at least four complete sentences
*June 11, 2013*

**chemistry**

what is the effect of barium chloride solution, dilute hydrochloric acid and dilute trioxonitrate(v) acid on iron II ammonium sulphate hexahydrate
*April 17, 2013*

**chemistry**

effect of Bacl2 and HNO3 of (NH4)2so4.feso4.6ho2
*April 17, 2013*

**Chemistry**

calculate the standard free-energy change for the synthesis of hydrazine from nitrogen and hydrogen. N2(g) + H2(g) right arrow N2H4(l)
*March 7, 2013*

**Physics**

Physics
*February 7, 2013*

**Physics**

How to calculate a gravitational force exerted on the paralle to the incline if its mass is 20kg is pulled upwards by a force inclined at 30 degree to the horizontal nd it accelerate along the incline plane at 2m.s-2?
*February 7, 2013*

**Physics**

A block,mass 20kg,is pulled upwards by a force F along a plane inclined at 30 degree to the horizontal.it accelerate along the inclined plane at 2m.s-2. The surface of the inclined exert a friction force on the block calculate the component of the gravitational force exerted ...
*February 7, 2013*

**Physics**

A block,mass 20kg,is pulled upwards by a force F along a plane inclined at 30 degree to the horizontal.it accelerate along the inclined plane at 2m.s-2. The surface of the inclined exert a friction force on the block calculate the component of the gravitational force exerted ...
*February 7, 2013*

**Soc. Studies**

I think it is A but idk what do you think.
*February 7, 2013*

**business statics**

a random sample of the grade of 78 students is taken. what is the probability that the average grade will be between 80.3% and 82.3%?
*October 21, 2012*

**Chemistry**

Boric acid is a weak acid with an equilibruim constant(K)of 10-9.3. What is the pH balance of a 0.1 molar solution of boric acid?
*October 8, 2012*

**programmer**

The technical management team is ready to review your proposed design for BeT. The Banking e-Teller system allows bank customers to perform ATM transactions from their cell phone. This first generation system will allow customers to check balances, make remote capture deposits...
*May 3, 2012*

**Chem**

why is (NH4)2Cr2O7 >> N2 + Cr2O3 + 4 H2O balanced like this.
*March 28, 2012*

**Decimal division**

If you were going to solve 0.7 divided by 0.0035 what would you write down on paper step by step?
*March 1, 2012*

**Physics**

How long does it take a motor cyclist to come to rest?which travels at 12m/s decelerates at 3m/s^2
*February 10, 2012*

**math**

Q: Convert 4x^2 + 4y^2 -8x -16y -29 = 0 into standard form. I first started by pairing the like terms together, getting: 4x^2 -8x + 4y^2 -16y = 29 The next step, I'm a little confused. I know I need to complete the square, but I'm not sure how to fully factor out the ...
*January 29, 2012*

**Algebra II **

Working on my online math homework, I encountered this problem: Solve: (3x^-1 y^-2)^-2 (x^2 y^5)^-1 [[Spaces denote the end of the exponent.]] Because of the law of exponents that deals with negative exponents, I did the reciprocal and distributed the exponent, getting (1/3x^2...
*January 25, 2012*

**trig**

how do you work find sin (a-B)beta sign. sin a = 12/13,a lies in quadrant II,and cos B = 15/17, B lies in quadrant I.
*January 8, 2012*

**statistics**

in a class of 40 student,18 pass maths, 19 pass account,16 pass economics 5 pass maths and account only, 6 pass maths only, if each student pass at least one of the subject.find the percentage number who fail in at least one of economics and maths. how many student fail in all...
*October 5, 2011*

**5 ways in which the human or environmental problem impact on the community**

I don't know the answer so I need help
*May 13, 2011*

**U.S history**

Describe America’s economic and military role in WW1
*January 27, 2011*

**U.S history**

World War 1
*January 27, 2011*

**U.S history**

Describe America’s economic and military role in the war
*January 27, 2011*

**U.S history**

how did Wilsonian idealism turned the war into an ideological crusade that inspired fervor and overwhelmed dissent
*January 27, 2011*

**math**

1. A die is tossed 10 times and the number of sixes rolled is recorded. The number of sixes rolled will follow what type of distribution? a. poison b. binomial c. geometric d. normal
*January 4, 2011*

**4th grade**

explain hou you can use an array to find partial products for 4X36
*October 27, 2010*

**language art**

ocr readind stories
*October 21, 2010*

**language art**

ocr reading
*October 21, 2010*

**english**

I'm kinda getting stumped. What are some other characteristics people kind have like their family besides physical ones?
*September 20, 2010*

**algebra homework**

I am having problems with fatoring this problem.Please help. 3x-22xy-16y^2
*September 8, 2010*

**biology**

the atomic mass =the number of _________+ the number of
*September 7, 2010*

**algebra**

How do I work this to get the answer because I am stuck. Help, Help, please anyone. Ihope that you are able to understand what I am asking. 3 SQRT10 over SQRT15 2 over 5+SQRT3
*September 3, 2010*

**algebra**

Can someone show me the step to solving this equation because I am just not getting it. My teacher is confusing me, so I need someone else to explain it in a different uncomplicated way. y-1/x+3 = -3/4.Thanks so much you guys for the help.
*August 27, 2010*

**math**

Solve: (a+4)/2 = (a + 4)/a
*August 27, 2010*

**Cultural Diversity**

ethic's 125 /impact on oreintalism on arab muslin chararteristics
*August 26, 2010*

**high school**

Explain in your own words the difference between an account that is earning simple interest for 5 years and another account that is earning interest that is compounded annually for 5 years
*August 26, 2010*

**high school algerbra class**

(2/x^2-4)+(3/x^2)+(x-6+1/x+3) someone please show me how to work this problem with the steps, so I can see if I can get it. This is due tomorrow in class. Thank you.
*August 25, 2010*

**high school algerbra class**

2/x^2-4+3/x^2+x-6+1/x+3 Could someone help me with this fraction? I have tried to answer it over three days now without any luck. If anyone can help please show the steps,so I can see how you got the answer. Thanks in advance!!!
*August 24, 2010*

**math**

the point P lies in the first quadrant on the line y=10-4x from P, perpendicular lines are drawn to the x and y axis. What is the maximum area of the rectangle formed?
*May 26, 2010*

**language arts**

words that ryme with kite
*April 15, 2010*

**algebra**

Marlene rides her bycicle to her friend Jon's house and returns home by the same route. Marlene rides her bike at constant speeds of 6mph on level grond, 4mph when going uphill and 12mph when going downhill. If her total riding time was 2 hours, how far was John's ...
*March 21, 2010*

**Math**

Draw an array for 12x7. (You don't have to draw all the boxes inside, just the shape and the dimensions.) How would you bread up this array into two smaller arrays? Show your two smaller arrays on your drawing, Then fill in the equation and solve the problem.
*January 29, 2010*

**Math**

Draw an array for 12x7 (You don;t have to draw all the boxes inside, just the shape and the dimensions.) How would you break up this array into two smaller arrays? Show your two smaller arrays an your drawing. Then fill in the equation and solve the problem.
*January 29, 2010*

**Math**

Draw an array for 12x7 (You don;t have to draw all the boxes inside, just the shape and the dimensions.) How would you break up this array into two smaller arrays? Show your two smaller arrays an your drawing. Then fill in the equation and solve the problem.
*January 29, 2010*

**Math**

Two small arrays have neen conbined to make a big arraay. What are the dimensions and product of the big array? Fill in the equation that shows this big array broken into two small arrays. 10x6 10x5 ?
*January 29, 2010*

**4th grade**

Two small arrays have been combined to make a big array. What are the dimensions and product of the big array: Fill in the equation that shows this big array broken into two small arrays. 10 x 6 10 x 5 = ?. Draw an array for 12x7. (You don/t ahve to draw all the boxes inside, ...
*January 25, 2010*

**4th grade**

Two small arrays have been combined to make a big array. What are the dimensions and product of the big array: Fill in the equation that shows this big array broken into two small arrays. 10 x 6 10 x 5 = ?
*January 25, 2010*

**Algebra 2**

How many subsets of set T have 2 elemnts if set T has 5 elements?
*August 26, 2009*

**Math**

you find the 2 factors of -3 sum of which wiil give you -4
*May 26, 2009*

**maths - geometry**

i had fill out a chart stating the prperties of certine shapes
*April 8, 2009*

**Math**

An aquarium holds 6 1/4 gallons of water. The water level has dropped to 4/5 of this amount. How much water should be added to fill the aquarium?
*December 11, 2008*

**calculus**

x y delta y = dy/dx*delta x o 1 1*0.1=0.1
*December 4, 2008*

**calculus**

use euler's method with delta x=0.1 to estimate y when x=0.4 for the solution curves satisfying y(0)=1 and y(-1)=0. I made the table but i don't know what values to use or plug in.
*December 4, 2008*

**calculus**

is y = x^3 a solution to the differential equation xy'-3y=0?? how do i go about solving this??? also, is there a trick to understanding differential equations? i'm really struggling with this idea, but i'm too embarassed to ask my professor for help.
*December 1, 2008*

**Integrated Science**

2. plants are autotrophs and produce their own food.
*November 22, 2008*

**calculus-follow up for damon**

thank you so much or your help! as a follow up question, for acceleration of the two runners, is acceleration the anti derivative of velocity???
*November 22, 2008*

**calculus**

thank you so much! as a follow up question, for acceleration of the two runners, is acceleration the anti derivative of velocity???
*November 22, 2008*

**calculus**

sorry the slash after the three should actually be a period, the equation is only 24t/2t+3
*November 22, 2008*

**calculus**

Two runners, A and B run on a straight race track for 0</=t</=10 seconds. The graph below, which consists of two line segments, shows the velocity, in meters per second, of runner A. The velocity of runner B, in meters per second, is given by the function v defined by v(...
*November 22, 2008*

**calculus**

use the fundamental theorem to find the area under f(x)=x^2 between x=1 and x=4. how do i go about doing this? i know how to use my calculator, but it says to use the theorem so i'm not completely sure.
*November 18, 2008*

**on college**

how to plan a 3 week job aid
*November 15, 2008*

**Juvenile Justice**

Thanks I will try that
*August 9, 2008*

**Juvenile Justice**

I need help trying to do a portfolio the assignment is: develope a comprehesive portfolio of information about your group (my selected group is gangs) in the juvenile justice system. These are the things that I have to cover: profile and risk factors, corrections and detentio...
*August 9, 2008*

**Math**

I am in 7th Grade and have some holiday homeworks. Please help. 1. Write all the algebraic identities. 2. Write the statement & proof for remainder theorem & factor theorem each. 3.Write all the quadrilaterals and their properties. 4. Write the formulae for finding the area ...
*May 14, 2008*

**math**

NATASHA IS 12 YEARS OLD AND RUNS AN AVARAGE OF 6 YARDS PER SECOND.dERK IS 8 YEARS OLD AND RUNS ABOUT5 YARDS PER SEC.NATASHA CHALLENGES DERK TO A 80 YARD RACE AND TOLDHIM SHE WOULD WIN EVEN IF HE HAD A 10-YARD HEAD START.
*May 13, 2008*

**Writing Assignment**

He keeps doing because death is a spirit that is alive. Therefore, it's also in Harry Potter and the Deathly Hollow. It's means that he's playing with a spirit. Hope you got it and it's hard to explain.
*February 24, 2008*

**chemistry**

I am enrolled in analytical chemistry after a 4 year break from any chemistry. I was recently given a problem set and I need some help on the following: A 0.899g sample containing epsom salt, MgSO4 & 7 H2O, and other non-hydrated materials was dehydrated completely in a stream...
*January 30, 2008*

**English**

What is the analogy? glue:sticks::thorns? must start with scr, spr, str, or thr
*January 10, 2008*

**English**

What is the analogy? glue:sticks::thorns? must start with scr, spr, str, or thr
*January 10, 2008*

**human genome**

The human genome has far fewer genes than previously thought. All of the following are ways that cells theoretically can increase the types of proteins they produce except alternative splicing transcription factors compounding Anticodons that are complementary to mRNA codons I...
*October 23, 2006*

**Reading**

riddle for /oo/
*October 4, 2006*

**Identifying controls and Variables**

the CONTROL is the normal situation that you compare your experiment to. The INDEPENDENT VARIABLE is something in the experiment that you control and change to see what kind of changes from the control can be observed the DEPENDENT VARIABLE is the variable that you measure in ...
*October 1, 2006*

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