Sunday

January 22, 2017
Total # Posts: 123

**Science**

Please help me. This is the question. A diver weighing 500N is positioned at the right end of a diving board with a length of 4m and negligible weight. The board is bolted down at the left end while being supported 1.5 m away from the fulcrum. a.)Find the forces F1 and F2 that...

*September 17, 2016*

**Stats**

A store carries 4 styles of denim jeans. For each style there are 5 different waist sizes and 3 different colours. The store also carries 2 named brands of t-shirts, each of 6 different colours and in 3 different sizes. A customer wants to buy an outfit consisting of one pair ...

*September 15, 2016*

**Math**

For the past 5 years, Frank and Peggy have deposited $15,000 in a retirement account with a simple interest rate of 7%. They plan to continue to make annual deposits for the next 20 years. Explain how their money will grow over time. Note: You do not need to extend their ...

*June 14, 2016*

**Physics**

At whatever level the water rises to, only atmospheric pressure shall be actung on the meniscus. Hence, the height it reaches will be h=100/9.8

*May 22, 2016*

**Math**

(3y)(3y-2) we have to use distributive rule in this one. so 3y*3y = 9y^2. 3*3=9 and y*y=y^2, hence 9y^2. Now we also have to distribute 3y to -2, which is -6y. Holistically we have an answer of 9y^2-6y. The answer is D.

*April 17, 2016*

**Physics**

WTF YOU TWAT!! DAMON YOU ARE FREAKIN WRONG. I FEEL BAD FOR THE PPL YOU HELP. First of all in this case the elevator is accelerating downward, hence the tension in the rope will decrease and not increase. PURE LOGIC what do you feel if you pull someone up by rope? More tension...

*April 17, 2016*

**Physics**

IF ANYONE NEEDS PHYSICS HELP COME TO ME. MESSAGE ME ON MY PHONE #213-373-8762

*April 17, 2016*

**Physics**

Damon is wrong. He forgot to put 1/2*V, I think his logic was that due to the velocity = 2 m/s he automatically assume it was 4 m/s. His mathematics is flawed and you should exempt his answers from your solution sheet. The VELOCITY IS A VARIABLE YOU CANNOT ASSUME BASED UPON ...

*April 17, 2016*

**Physics**

Consider the formula. P=mv. Due to inelastic collisions we concur an impulse logically follows. Impulse = the change of momentum. Hence in mathematical terms: (.25)(1/2)V = 0.5(2-V) simplify 0.125V = 1 - 0.5V simplify 0.625V = 1 Simplify V = 1.6 m/s

*April 17, 2016*

**Life Orientation**

Describe the human rights violation that is taking place in your community or neighbouring community.Give your own position on xenophobia.

*April 10, 2016*

**math**

two wires support a pole in opposite directions. they make angles of 36° and 42° with the horizontal, and the points where they touch the ground are 50 ft apart. find the length of each wire

*February 9, 2016*

**Project Management**

ow can we determine a risk profile for our project, since each of our organizations has its own tendency to deal with risk?

*January 29, 2016*

**science**

Humans have looked at planets

*January 25, 2016*

**Math**

If a tile is 9.96 inches by 9.96 inches, how many do I need to cover 24 square feet?

*January 13, 2016*

**Physics**

A 5.2 kg bucket of water is raised from a well by a rope. The acceleration of gravity is 9.81 m/s^2.If the upward acceleration of the bucket is 4.0 m/s^2, find the force exerted by the rope on the bucket of water. Answer in units of N.

*January 7, 2016*

**math Help plz**

ok thanks i get #2 but i still don't understand 1.

*November 30, 2015*

**math Help plz**

1.Given a geometric sequence with a_1=6 and r=2/3, write an explicit formula for a_n, the nth term of the sequence. 2.A geometric sequence has a_4=4 and a_5=7. What is a?

*November 30, 2015*

**Math**

Give an example of a radical function f(x) whose domain is (3,∞) and whose range is (-∞,0] Can i plz get help

*November 30, 2015*

**math**

A potato is put into an oven that has been heated to 350°F. Its temperature as a function of time is given by T(t)=a(1-e^kt)+b. The potato was 50F when it was first put into the oven. 1.If the potato is 60°F after 2 minutes, what is the value of k? 2.When will ...

*November 30, 2015*

**Math**

What is Input 2 and Output 13 with 2 equations

*November 9, 2015*

**ICT1511**

Sam works at a coffee company where all the employees receive a bonus of R700, except the employees in the coffee department 3, who receive a bonus of R850. Enter his gross salary and his personal department number. Calculate the total income of Sam. Subtract 25% of the gross ...

*September 9, 2015*

**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*

**health**

is it c

*February 27, 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*

**Math(arithmetic & Geometric Series)**

the common different between p and q

*March 23, 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*

**physics**

A System Has A Total Mechanical Energy Of 350 J And Kinetic Energy Of 220 J. What Is Its Potential Energy?

*November 27, 2012*

**Business Math Question**

$1,638/$12,600 = finance charge per $1.00 = $0.13/$1.00. Multiply both numerator and denominator by 100 in order to increase the $1.00 to $100.00 = answer $13/$100.

*November 8, 2012*

**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*

**programmar**

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*

**physics**

considering we use Newtons second law, we also have to logically conclude that we are individually find each object's net force. Therefore we neglect the other mass i.e. we plug in Newtons second law for the car Fnet = (990)(2.15), considering we are isolating the objects ...

*June 11, 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*