# maths-urgently needed

19,307 results

maths-urgently needed
if p(x) = px^7 + qx^3 + rx - 5 where p , q , r are constants , if p(-7) = 7 then p(7) = ?

maths-urgently needed
If a+b+c=0 then prove that a^4+b^4+c^4=2(a^2b^2+b^2c^2+c^2a^2)

maths-urgently needed[Differential equations]
solve- dy/dx = 2xy + (y^2/x^2)

maths-urgently needed[Differential equations]
solve- dy/dx = 2xy + (y^2/x^2)

maths-urgently needed
Integrate ( x^2cosx)/(1+sinx)^2 dx with limits from 0 to pi/4

maths-urgently needed
integrate 1/x dx w.r.t x answer should be log(x) or ln(x) and why

maths-urgently needed
Construct a triangle PQR with base PQ = 8.4 cm , angel P = 45 degree and PR - QR = 2.8 cm ??

maths-urgently needed
show that: 2^5 cos^2a sin^4a = cos6a-2cos4a- cos2a + 2

maths-urgently needed
A moneylender 's income decreased by Rs.60 when the rate of interest dropped from 8%p.a to 31/4%p.a.What was his principal

maths-urgently needed
find the vector and the cartesian equation of the line passing through (1,2,3) and parallel to the planes x-y+2z=5 and 3x+y+z=6

maths-urgently needed
find the vector and the cartesian equation of the line passing through (1,2,3) and parallel to the planes x-y+2z=5 and 3x+y+z=6

maths-urgently needed
ABCD is a trapezium, P and Q are mid points of the diagonals AC and BD. If AB=17cm and CD=9cm then the length of PQ is equal to

maths-urgently needed
90% of all students passed in Hindi, 85% in Maths and 150 students passed in both. calculate total number of students in the school.

maths---urgently needed
range of sin(siny) +cos(siny)

maths-urgently needed ,plse
Explain cos^-1 [cos 5pi/4] also tell it can be defined or not.

maths-urgently needed
the diameter of a metallic ball is 14 cm. what is the mass of the ball, if the density of the metal is 6gm per cm^3.(cm cube)?

maths-urgently needed
A number of 4 different digits is formed by using 1, 2, 3, 4, 5, 6, 7. Find the probability that it is divisible by 5. Digits can be repeated

maths-urgently needed
If the ratio of the legs of a right triangle is 1 : 2, then the ratio of the corresponding segments of the hypotenuse made by a perpendicular upon it from the vertex is

maths-urgently needed
If the ratio of the legs of a right triangle is 1 : 2, then the ratio of the corresponding segments of the hypotenuse made by a perpendicular upon it from the vertex is

maths-urgently needed
The areas of the the three adjacent faces of a cuboid are 600 sq.cm 300sq.cm and 200 sq.cm.find the sum of the length,breadth and height of the cuboid ?

maths-probabilty(urgently needed)
A box contains 5 red balls and 6 black balls. in how many ways can 6 balls be selected so that there are at least two balls of each color?

maths-urgently needed
From the top of a cliff 150m high, the angles of depression of two boats are 60 and 30. Find the distance between the boats if they are on the opposite sides of the cliff.

maths-urgently needed
When a number is divided by 7 and 9 , the remainder is 4 and 3. what will be the remainder of a same no. when it is divided by 37.

maths-urgently needed
ABCD is a square with length of each side 1cm. An octagon is formed by lines joining the vertices of the square to the mid points of opposite sides. Find the area of the octagon?

maths-urgently needed
In right angled triangle ABC angle B=90 degree and AB= root 34 unit. The coordinates of point B and Care (4,2)and (-1,y) respectively. If area of triangle ABC = 17 sq.units, then find value of y.

maths-urgently needed
find the equation of circle if the line 2x - y +1 = 0 touches the circle at the point (2,5) and the center of the circle lies on the line x+y -9 =0

maths-urgently needed
A man invests Rs 3,20,000 for 2 years at 12.5% p.a. compounded annually. If the income tax at the rate of 20% is deducted at the end of each year, on interest accrued, find the amount he received at the end of 2 years.

maths-urgently needed
the general solution of sin x + sin 2x + sin 3x + sin 4x = 0 ?

maths-urgently needed
A line through through the point (3,0) meet the variable line y=tx at right angle at the point P. Find in terms of t, the co-ordinates of P

maths-urgently needed(probability)
A bag contains 5 red, 4 blue and an unknown number of m green balls. Two balls are drawn. If probability of both being green is 1/7 find m.

maths-urgently needed
If the mean of y1 and y2 is M1 and that of y1, y2, y3, y4 is M2, the mean of ay1, ay1.y3/a, y4/a is

maths-urgently needed
A cube or a cuboid had the volume the measurement of the cubiod area in the ratio 1:2:3 if the difference between thee cost of painting the cuboid & cube (whole surface area) at the rate of 5m is rs80 find their volume

Math help needed urgently
X + y + z =1 x^2 + y^2 + z^2 =35 X^3 + y^3 + z^3 =97 find x , y. z

maths-urgently needed
the simple interest of certain amount for a period of 2 years is 400 . the compound interest for the same amount for the same period is 410. find the principal and rate of interest?

maths-urgently needed
A person buys a refrigerator for rupees 12000. He pays rupees 6000 in cash and agrees to pay the balance in 12 annual instalments of rupees 500 each. If the rate of interest is 12% and he pays it with instalments on the unpaid amount, how much did the refrigerator cost him

maths-urgently needed
A manufacture of furniture sells a sofa set to a retailer for Rs 23000.the retailer, in turn, sells the sofa set to a customer for Rs 29000.find the VAT rate as percent,if the retailer pays Rs 520 as VAT.

maths-urgently needed
If in a triangle ABC, c(a+b) Cos B/2 =b(c+a) Cos C/2 then the triangle is :- 1. isosceles 2. Right angled 3. isosceles or right angled 4. none of these I want the explanation

maths-urgently needed
If in a triangle ABC, c(a+b) Cos B/2 =b(c+a) Cos C/2 then the triangle is :- 1. isosceles 2. Right angled 3. isosceles or right angled 4. none of these I want the explanation

maths-urgently needed
If in a triangle ABC, c(a+b) Cos B/2 =b(c+a) Cos C/2 then the triangle is :- 1. isosceles 2. Right angled 3. isosceles or right angled 4. none of these I want the explanation

maths
Find dy/dx for the following: a) y=3x^2 - 3x b) y=x^3(3+5x)^2 c) y=(x^2+1)^2/2x Please offer your help as I urgently need help

maths help me urgently!!!!!!
rationalise [1-(2i^2)]/i Plz help show we working so that i can learn

maths-urgently needed
Consider the number 6135246. Jai can change this number in the following way. He can select atleast one digit and at most six digits (which need not necessarily be consecutive) from this number, and shift them to the rightmost in their respective order. For example- If she has...

maths- plseee urgently
value of sin18degree-sin66degree+sin60 degree

Physics
can anyone give a site that have problems about pressure with solution.. urgently needed.. thanks :)

maths-urgently needed
The volume of a cylinder is 48.125 cm3, which is formed by rolling a rectangular paper sheet along the length of the paper. If cuboidal box (without any lid i.e., open at the top) is made from the same sheet of paper by cutting out the square of side 0.5 cm from each of the ...

maths-urgently needed
From the top of a tower the angle of depression of an object on the horizontal ground is found to be 60degree. On descending 20 m vertically downwards from the top of the tower, the angle of depression of the object is found to be 30degree Find the height of the tower.

maths-urgently
let y = 3x+ 10 - x^2, where x and y are positive whole no. find sum of all possible values of y.

History of Schooling
What were Infant, Primary, and Secondary schools like in the early 1900s? This info is needed URGENTLY!

maths
x^4+3x-2/(x^2+1)^3(x-4)=(Ax+B)/(x^2+1)+(Cx+D)/(x^2+1)^2+(Ex+F)/(x^2+1)^3+H/(x-4)+G/(x-4)^2.find ABCDEFGH?plz solve it a partial fraction i serious need the solution urgently

further maths
for what range of positive integers is log10 (x-40)+log(60-x)<2?plss I need an answer urgently

malayalam needed urgently
indiayude mun presidentmarude chitrakal shekariche venda adikuripukalode oru album thayarakkukaa

maths-urgently needed
There is a garden of apples and the profit from a garden of apple trees is given by f( x ) = 70 + 30 x^2 - (1/3) x^3, where x = number of apples trees per acre. How many trees per acre will maximize the profit?

maths- plseee urgently
without calculator we need to find the value of sin18degree-sin66degree+sin60 degree

Science
Urgently needed for my n.e.e.t test next week.. Calculator not allowed.. How do i find antilog of (-10.6) for solving a pH based question?? Please help!

maths-urgently needed
A manufacturer lists the price of the goods at Rs.240 per article. The wholesaler gets a discount of 25% on the goods from the manufacturer.The retailers are allowed a discount of 15% on the list price by the wholesaler. The prescribe rate of sale tax at all stages is 8%. A ...

maths-urgently needed-plse help
A manufacturer lists the price of the goods at Rs.240 per article. The wholesaler ge6ts a discount of 25% on the goods from the manufacturer. The retailers are allowed a discount of 15% on the list price by the wholesaler. The prescribe rate of sale tax at all stages is 8%. A ...

government secondary school
maths:x^4+3x-2/(x^2+1)^3(x-4)=(Ax+B)/(x^2+1)+(Cx+D)/(x^2+1)^2+(Ex+F)/(x^2+1)^3+G/(x-4)+H/(x-4)^2.fine the value of ABCDEFGH,it a partial fraction o plz i need the solution urgently

maths-urgently needed
Rana bought 500 shares of HCL at a rate that yielded him 20 % return on a 24%, Rs 350 share. Later on , the company issued a bonus share for every 10 shares held. When the market price was Rs 480 he sold all the shares and invested the proceeds in buying Rs 300 shares of IBM ...

maths-urgently needed
Rana bought 500 shares of HCL at a rate that yielded him 20 % return on a 24%, Rs 350 share. Later on , the company issued a bonus share for every 10 shares held. When the market price was Rs 480 he sold all the shares and invested the proceeds in buying Rs 300 shares of IBM ...

maths-urgently needed
A manufacturer lists the price of the goods at Rs.240 per article. The wholesaler gets a discount of 25% on the goods from the manufacturer. The retailers are allowed a discount of 15% on the list price by the wholesaler. The prescribe rate of sale tax at all stages is 8%. A ...

English - help needed
Posted by annie on Wednesday, October 13, 2010 at 4:29pm. Are the following sentences semantically / gramatically correct? 1)Alert the supervisor to any defective material found. 2)Some equipment have been taken away for inspection. After inspection, ensure that all the ...

maths-urgently needed
A manufacturer lists the price of the goods at Rs.240 per article. The wholesaler ge6ts a discount of 25% on the goods from the manufacturer. The retailers are allowed a discount of 15% on the list price by the wholesaler. The prescribe rate of sale tax at all stages is 8%. A ...

History of English Schooling
What were English Infant, Primary, and Secondary schools like in the early 1900s? This info is needed URGENTLY!

Science
How much mL of dilute nitric acid is needed to add in control solution in chloride limit test in sodium hydroxide sample???can u please give me Answer urgently??

maths-urgently
An arc of a circle is of length 5p cm and the sector is bounds has an area of 20p cm^2 find the radius of the circle.

Maths equation plz help urgently

mega urgently important maths
the functions f and g are defined by f(x)=2/(x+1), x>0 g(x)=1-x^2, xER a)find value of fg(x)giving your answer in the simplest form. b) find f^-1(x) c) solve f(x)= f^-1(x)

maths-urgently needed
Atul invested Rs 75000 in buying Rs 200 shares of ABC Ltd paying a dividend of 20%. He bought them at a rate which gave him a yield of 16%. After a year he sold them at Rs 350 and invested the proceeds along with the dividend obtained in buying Rs 175 shares of XYZ ltd paying ...

maths-urgently needed ,plse
Atul invested Rs 75000 in buying Rs 200 shares of ABC Ltd paying a dividend of 20%. He bought them at a rate which gave him a yield of 16%. After a year he sold them at Rs 350 and invested the proceeds along with the dividend obtained in buying Rs 175 shares of XYZ ltd paying ...

science/maths?

How much mL of dilute nitric acid is needed to add in control solution in chloride limit test in sodium hydroxide sample???can u please give me Answer urgently??

Maths
If Q(x)=x^2 for x less than or equal to 1 =ax+b for 1<x<2 = x^2-5 for x greater than or equal to 2 Find the values of a,b if Q(x) is to be continous for all x Please help with this urgently and also show all working out on method to do it Thanks

computing maths
Determine whether the relation R on the set of all real numbers is reflexive, symmetric or transitive? where (x,y) is an element of R Explain why and why not by proving and giving examples. (a) x=1 (b) xy ≥ 0 (c) x-y is a rational number (d)x+y = 0 I need help urgently...

English - help needed urgently
Are the following sentences semantically / gramatically correct? 1)Alert the supervisor to any defective material found. 2)Some equipment have been taken away for inspection. After inspection, ensure that all the equipment are accounted for.

Physics !! Help Needed UrGeNtLy!!
A toddler applies a 25.0 N force to a chair over a distance of 2.5 m, the chair is being pushed across a smooth floor against a force of friction (10.0 N resistance). How much work is being done?

English
I urgently need to include the following details in a letter. Ms. Sue, could you please check them? 1) As I'm planning all the details for our preliminary meeting I urgently need to know when you are arriving here and if you need any help to arrange your transfer from the ...

English
I urgently need you to see if the sentence is OK now. Thank you!! 1) Moreover, this particular bacterium can survive in presence of arsenic and, therefore, won't die until its action of purification is completed. 2) This method is inexpensive and affordable even for those ...

Maths
Pls i urgently need solution to this problems(1) in angle xyz. Y=298cm,z=51.4cm,x=196cm.solve the angle completely. (2). Calculate the values of anglesA and C of MABC where b=14.36cm a=7.82cm B=115.6cm. (3). a,A,angleC in angleABC given that b=17.23cm.C=10.86cm,B=101.30cm.thanks

MATHS
Please help..urgently.. A charity collected 20 cent and 50 cent coins for a fund raising event in the ratio of 16:7. they collected 6912 20-cent coins. how much money did they collect altogether?

maths (variation)
different questions pls! Very urgent! 1) the force E needed to make a machine pull,a load is partly constant and partly varies as the load to be pulled itself.when the load is 20g,the force needed is 1.4n,where as the force needed for 30g load is 2N. Find the: A)law connecting...

Maths
Hi I have a maths problem I can't figure out please someone help. Zac had some 2c stamps and 5c stamps.he needed to put 30c on a postcard to mail it.what combinations of stamps could he use.

Maths
8kg of fertilizer are needed for a garden.How much fertilizer would be needed for a garden of double the dimensions

maths
The dimeter of a pool is 8 metres,the pool is 2 metres deep,what wiil be the volume of the water needed (in litres) needed to fill the pool

maths
1kg of rice seed is needed for a rectangular plot 25m long.How much seed would be needed for a similar plot which is 100m long

maths
2x+5=x+9 urgent help needed

Maths
a builder needs to calculate the number if bricks needed to build a wall.The wall measure 5m 31cm and each brick measures 16cm.How many bricks are needed to build one layer of the wall?

accounting
A business has a rate of return of seven times. At one time the business had an average stock of sh 142,000. The trade discounts allowed was 33.3% of all selling prices to retailers of gross profit. Calculate; (a) cost of goods sold (b) gross profit (c) turnover (d) total ...

maths needed fastly
solve the following equations x=4/5(x+10) 2x/3+1=7x/15+3 2y+5/3=26/3-y 3m=5m-8/5

maths
One tile is 20 cm long.How many tiles are needed for a 4 m row

Maths
How many points would there be if you needed to draw a 21 lined mystic rose

Maths
They were 336 people at a concert.if 2/3 were childre,how many chairs were needed for the adults?

maths
how many terms in the arithmetic series are needed to make a total of 204? 2 + 3.25 + 4.5 + .....

Maths-Help needed!!!
Compare the graphs f(è)=sinè and f(è)=sin(-è). f(è)=cosè and f(è)=cos(-è). What conclusions can you make?

Solve for x and y where needed A.4([1]/[2]x + 2)=2([2]/[3]x - 3) B.[3x -6]/[2y]=4........equation one [2y+3]/[4]=2x Keys- [numerator]/[denominator]

maths,science,agriculture
What requirements are going to be needed for studying VET at tertiary institution

maths
if the diameter of a bike wheel is 20cm, what's the minimum number of revolutions needed to cover 1km?

phakamani secondary school

Maths
URGENTLY ANSWER RATIO MATHS !!! Please EXPLAIN the steps fully CLEARLY, I have already got answer so no need to worry. This is for GCSE just so you know. Ratio Problem 1- Chantel makes muesli using wheat flakes and dried fruit in ratio 8:5. She has a 200g of wheat flakes and ...

precalc 12
Imagine that you have ten small light bulbs, of which three are burned out a) in how many ways can you randomly select 4 of the light bulb b) in how many ways can you select two good light bulbs and two burned out light bulbs? Hel needed Urgently

math
Draw a venn diagram to illustrate the following. In a shop 50 cars were inspected and it found that 23 needed new brakes and 34 needed new tires. 3 needed no services at all how many needed new brakes and new tires? How many only needed brakes? Please help

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