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2011
August

Questions Asked on August 3, 2011

A block of mass 2kg is pushed along a table with a constant velocity by a force of 5N.When the push is increased to 9N,what is
1. 8 answers
2. asked by Luc
3. 2,944 views
A)When the energy input to gas fired power station is 1000MJ,the electrical energy output is 300MJ.What is the efficiency of the
1. 3 answers
2. asked by Luc
3. 3,979 views
In loading a lorry a man lifts boxes each of weight 100N throughta height of 1.5 m. a)how much work does he do in lifting 1 box
1. 5 answers
2. asked by Luc
3. 4,182 views
In a bag there are red, green, black,and white marbles. If there are 6 red, 8 green, 4 black, and 12 white and one marble is to
1. 6 answers
2. asked by Amy
3. 4,270 views
Write an equation of the line containing the specified point and parallel to the indicated line.(1,4)3x+y=5
1. 2 answers
2. asked by smith
3. 659 views
use polynomial long division to divide 25x^3+40x^2+25x+10by -5x^2-3x-2
1. 1 answer
2. asked by ROCKY
3. 544 views
Express in terms of i.2sq.rt.divided by-36
1. 1 answer
2. asked by ROCKY
3. 310 views
One pump can empty a pool in 5 days, whereas a second pump can empty the pool in 7 days. How long will it take the two pumps,
1. 3 answers
2. asked by Lisa
3. 8,783 views
3x+4y=12 how to find the slope and y-intercept
1. 2 answers
2. asked by alvin
3. 393 views
Given the quadraticf(x)=x^2-14x+49, find a value of x such thatf(x)=36
1. 1 answer
2. asked by ROCKY
3. 307 views
At a flea market, 5 out of twelve vendors are selling antiques. What is the decimal equivalent of 5/12
1. 7 answers
2. asked by anonymous
3. 428 views
Compare decimal notation to fractional notation. Which is easier to work with, in your opinion?
1. 1 answer
2. asked by Fiso
3. 810 views
You set out to design a car that uses the energy stored in a flywheel consisting of a uniform 103-kg cylinder of radius R that
1. 1 answer
2. asked by Alex
3. 895 views
Which number is equivalent to -7 1/3 ?
1. 1 answer
2. asked by drea
3. 449 views
What decimal is equivalent to seven and 3 over two hundred fifty?
1. 3 answers
2. asked by drea
3. 468 views
What tools are in a "writing toolbox"?
1. 3 answers
2. asked by Rachel
3. 741 views
DefinitionGender schema helps the children make sense of their world. A schema for a boy would be “boys play with trucks and
1. 1 answer
2. asked by Sharon
3. 534 views
River Current A boat can travel 36 miles upstream in the same time that it can travel 54 miles downstream. If the speed of the
1. 3 answers
2. asked by Adam
3. 765 views
For the following, state the value of the discriminant and then describe the nature of the sloution. -3x^2-8x-19=0
1. 1 answer
2. asked by Tim
3. 414 views
I have to write a speech on a pet peeve. I chose aggressive driving. Here is my introduction for the outline. Think?Aggressive
1. 3 answers
2. asked by lizzie
3. 1,213 views
Evaluate each mission statement based on the following:• Beliefs • Mission • Vision • Culture • Goals • Products
1. 3 answers
2. asked by Crystian
3. 670 views
what is negative three point two as a mixed number in simplest form.
1. 1 answer
2. asked by drea
3. 427 views
In a preliminary study, the sample standard deviation for the duration of a particularback pain suffered by patients was 18.0
1. 1 answer
2. asked by joe
3. 1,553 views
simplify 12~ 1/4 + 2/5 - 2^3
1. 1 answer
2. asked by Anonymous
3. 293 views
What is thirty−six percent of fifty?
1. 2 answers
2. asked by drea
3. 391 views
Wildlife officials had to rescue and remove seven hundred thirty−five Florida panthers in the past twelve months. It is
1. 1 answer
2. asked by drea
3. 1,189 views
If 10=0.1 what does 28 equal?
1. 1 answer
2. asked by David
3. 289 views
Express in terms of i.2 divided by sqrt.,-36
1. 1 answer
2. asked by ROCKY
3. 896 views
Damon, thanks for your answer. Consider that the 20lb object is being pulled behind a bid rig truck traveling at 90mph, can it
1. 1 answer
2. asked by david
3. 365 views
A baseball is hit with a speed of 27.0 m/s at an angle of 42.0 deg. It lands on the flat roof of a 10.0 m-tall nearby building.I
1. 1 answer
2. asked by Kyle
3. 3,212 views
Rowing. Abby rows 10km. upstream and 10km. back in a total time of three hours. The speed of the river is 5km./h. Find Abby's
1. 3 answers
2. asked by ROCKY
3. 1,187 views
Hydrochloric acid and sodium hydroxide are mixed together to form salt and water. During the reaction, the temperature of the
1. 1 answer
2. asked by Anonymous
3. 1,414 views
If 1/3 of 2x is 5, what is 2/3 of 4x?
1. 1 answer
2. asked by Kay
3. 289 views
kris enjoys action movies at the theatre
1. 8 answers
2. asked by jose
3. 734 views
Would it be unusual for the mean of a sample of 3 to be 115 or more?
1. 1 answer
2. asked by john
3. 528 views
A 850 kg car skidding on an icy highway at32.5 km/h slides onto some bare pavement. If the coefficient of friction between the
1. 3 answers
2. asked by Brina
3. 624 views
Increase 500m2 by 25%
1. 2 answers
2. asked by Anonymous
3. 281 views
How does the identification of cultural universals impact our understanding of what it means to be human?
1. 1 answer
2. asked by Victor
3. 429 views
Hawaii is one of the most beatiful places on earht. what are the verbs in the sentence
1. 1 answer
2. asked by lily
3. 596 views
An athlete runs 12 laps on a 400m running track every day for 2 weeks. How many kilometers does she run in total?
1. 2 answers
2. asked by Bella
3. 493 views
If x>0 and x=5y, then square root of x^2-2xy+y^2 is..
1. 1 answer
2. asked by John
3. 357 views
Over a one-week period, there is a rapid increase in the number of patients entering the emergency room complaining of high
1. 1 answer
2. asked by dannytan2
3. 563 views
PCL5(g) -> PCl3(g) + Cl2 (g)Kp= 23.6 at 500K Calculate the equlibrium partial pressures of the reactants and products if the
1. 0 answers
2. asked by San
3. 856 views
It also affects the way in which one family relates to another, to the neighborhood, and to the communityWhat correction should
1. 1 answer
2. asked by Anonymous
3. 395 views
7(ac + 2b) + 2ac
1. 1 answer
2. asked by Anonymous
3. 447 views
A pie graph show two different business if transport is the greatest expenses of one is how do u Calculates the cost in rands•
1. 1 answer
2. asked by zubeida
3. 306 views
A box of mass 5 kg is pulled along a horizontal frictionless surface by a force of 40N inclined @ 30dgrees. Calculate A)the work
1. 1 answer
2. asked by Luc
3. 764 views
A chair lift carries people of average mass 75kg to a height of 450m above the starting point. Calculate a) the work done by the
1. 1 answer
2. asked by Luc
3. 994 views
give me an ex. about close to 1,1/2,0 pls. for my project THANKS
1. 1 answer
2. asked by rosswyn
3. 259 views
about math EX. 9/10 is close to 1 THANKS AGAIN
1. 0 answers
2. asked by rosswyn
3. 319 views
The volume of the solid generated by revolving the region about the given line. above the curve y=3 below the curve y=sqrt of 3x
1. 0 answers
2. asked by Larry
3. 509 views
a cylindrical container has a base radius of 14cm and height 18cm. How many litres,correct to the nearest litre, of liquid can
1. 2 answers
2. asked by stella
3. 1,262 views
How much work is done when a mass of 30N is lifted vertically through 6m
1. 2 answers
2. asked by Luc
3. 989 views
A hiker climbs a hill 300m high.If she weighs 50kg,calculate the work she does in lifting her body to the top of the hill
1. 5 answers
2. asked by Luc
3. 3,426 views
A car of mass 1200kg travelling @ 72 km/h is brought to rest in 4s.Find a) the average deceleration b)the average braking force
1. 6 answers
2. asked by Luc
3. 3,046 views
A load of 500N is raised 0.2m by a machine in which an effort of 150N moves 1m.What is a) the work done on the load b)the work
1. 4 answers
2. asked by Luc
3. 1,135 views
1. Which one of the following elements is characteristic ofGothic furniture? A. Melon-bulb turnings B. Tracery designs C.
1. 1 answer
2. asked by Suzan
3. 1,553 views
I need to prepare different grammar tests. I really hope you can see if everything is OK.1) Ask for the information in the bold
1. 1 answer
2. asked by Henry
3. 463 views
I still have to include a few more exercises. Thank you very much.1) Complete the sentences with must/mustn’t, have to/don’t
1. 1 answer
2. asked by Henry
3. 503 views
A building has 7 storeys. If the interior length is 41 m and the width is 32 m, What is the total floor space in the building
1. 1 answer
2. asked by Rona
3. 435 views
Solve the equaton by completing the square.4x^2-8x-3=0
1. 1 answer
2. asked by Ashley
3. 391 views
The diagonals of a rectangle ABCD meet at O. If angle BOC is equal to 44 degree, find angle OAD.
1. 2 answers
2. asked by m.d.
3. 1,734 views
consider a solid cylinder rolling from rest down a plane inclined at an angle theta to the horizontal.After rolling down a
1. 1 answer
2. asked by victor2
3. 490 views
Will s person that is born deaf(deaf since birth) be able to speak? please provide a proof for your answer(i.e. website)
1. 3 answers
2. asked by Chester
3. 593 views
show that sin3theta-cos2theta =(1-sin theta)(4sin squared theta + 2sin theta -1)
1. 1 answer
2. asked by victor2
3. 400 views
show that sin3theta-cos2theta =(1-sin theta)(4sin squared theta + 2sin theta -1)
1. 1 answer
2. asked by victor2
3. 464 views
Given that A + B = 120 degrees and cosA + cos B = 1 divided by squareroot of 2,show that cos A-B divided by 2 = 1 divided by
1. 1 answer
2. asked by ceasar
3. 603 views
tan5x/4x as lim x approaches to pi
1. 1 answer
2. asked by rohan
3. 356 views
1. Show quantitatively how you would prepare a solution of 3.10 x 10^2 g of 0.125 molar (m) ethylene alcohol from ethylene
1. 1 answer
2. asked by eddy
3. 602 views
give that sin( A + B )= 2cos(A - B ) and tan A = 1/3,Find the exact value of tanB
1. 3 answers
2. asked by CHRYSTABELLE
3. 662 views
1. What amount of Potassium Chloride forms when 5.25 litres of Chloride gas at 0.95 atm and 293K reacts with 17.0g of Potassium.
1. 1 answer
2. asked by Kam
3. 617 views
4. During a practical exercise, you find out that you need to adjust the pH of a strong acidic solution of volume 5.6 litres
1. 2 answers
2. asked by Edwards
3. 504 views
Show that for any p and q on the line ,the distance from p+q/2 is the same as the distance from p+q/2 to q.
1. 0 answers
2. asked by CHRYSTABELLE
3. 271 views
Find the equation of the smaller circle tangent to both axes and passing the point (-3,6)
1. 1 answer
2. asked by ceasar1
3. 976 views
Find the equation of the parabola with the vertex at the origin and directrix y =5
1. 1 answer
2. asked by victor
3. 1,529 views
A sales firm receives an average of four calls per hour on its toll-free number. For any given hour, find the probability that
1. 1 answer
2. asked by Lindsay
3. 2,445 views
simplify 12-1/9 /4/3+(1/2)^2
1. 1 answer
2. asked by kate
3. 293 views
simplify -3(-9)-[-5-3]
1. 3 answers
2. asked by sofiya
3. 264 views
COMPOUNDSP=2500, r=12%, t=20yrs, n=2
1. 1 answer
2. asked by shakera
3. 281 views
1. Show that Sin3è - Cos2è = (1 - Sinè)(4Sin^2è + 2Sinè - 1).Without using a calculator, show that è = 18 degrees is an
1. 3 answers
2. asked by Edwards
3. 678 views
1. Show that Sin3 Theta - Cos2 Theta = (1 - Sin Theta)(4Sin^2 Theta + 2Sin Theta - 1).Without using a calculator, show that
1. 0 answers
2. asked by Edwards
3. 554 views
When Pal throws his beach ball straight up in the air, it's height h at time tis given by h=(-1/2)gt^2+v(sub 0). Find the
1. 1 answer
2. asked by Jordan
3. 448 views
When Pal throws his beach ball straight up in the air, it's height h at time tis given by h=(-1/2)gt^2+v(sub 0). Find the
1. 0 answers
2. asked by Jordan
3. 354 views
TRUE or FALSE?when ice cubes melt into liquid water, its physical properties changes
1. 1 answer
2. asked by Floyd
3. 766 views
30-60-90 triangle has a hypoteneuse of 10 use trig to find the short side
1. 2 answers
2. asked by Christa
3. 336 views
Sodium carbonate reacts with hydrochloric acid as shown below in an unbalanced chemical equation. What mass of CO2 is produced
1. 5 answers
2. asked by Astrid
3. 3,090 views
3. Simplify. 2y+y^2-xy-(xy-y+3y^2)
1. 1 answer
2. asked by susan
3. 292 views
4. Solve . 16-2(8w-7)=3w-18(2-w)
1. 1 answer
2. asked by susan
3. 303 views
can someone help me to make this a non- function.f(x){(1,-8),(3,-4),(5,0),(9,4),(10,-2)
1. 0 answers
2. asked by tamika
3. 299 views
factorize (x^2-4x)(x^2-4x-1)-20
1. 1 answer
2. asked by pavatharani
3. 427 views
factorize 2*2^1/2x^3+3*3^1/2y^3+5^1/2(5-3*6^1/2xy)
1. 0 answers
2. asked by pavatharani
3. 357 views
if a=(3^1/2+2^1/2)/(3^1/2-2^1/2)b=(3^1/2-2^1/2)/(3^1/2+2^1/2) find a^3+b^3
1. 0 answers
2. asked by pavatharani
3. 219 views
if x=1/(2-3^1/2)prove that x^3-2x^2-7x+5=3
1. 1 answer
2. asked by pavatharani
3. 315 views
if x=3+8^1/2, find x^4+(1/x^4)
1. 1 answer
2. asked by pavatharani
3. 229 views
factorize a^3+b^3+c^3-3abc
1. 1 answer
2. asked by pavatharani
3. 405 views
if the sides of a triangleABC is 16cm,19cm and 15cm what about the angleB is it the greatest or smallest angle or is angleB =
1. 1 answer
2. asked by pavatharani
3. 378 views
What mass of PbCl2 would be found in 0.48 L of a saturated solution of PbCl2 if the Ksp of PbCl2 is 1.6 x 10-5?
1. 1 answer
2. asked by J.T
3. 974 views
Farmers often spray water on plants when there is a chance of frost to protect them from freezing. Calculate the amount of heat
1. 3 answers
2. asked by Vt
3. 666 views
In a methane fuel cell, the chemical energy of the methane is converted into electrical energy instead of heat that would flow
1. 2 answers
2. asked by Vt
3. 844 views
step by step how to solve algerba problems
1. 2 answers
2. asked by Carus II
3. 551 views

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