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Raj

Questions and answers by Raj, page 3

Questions (360)

f(x)=2x+1Sketch in a single diagram the graphs of y=f(x) and y=f^-1(x), making clear relationship between the graphs.
1. 3 answers
2. 650 views
f(x)=x^2-4x+k for x>=pState the range of f in term of k.
1. 1 answer
2. 248 views
f(x)-x^2-4x+k for domain x>=pState the smallest value of p for which f is one-one.
1. 2 answers
2. 617 views
There is a function y=f(x) for -4<=x <=4 having two turning points at A(-2,21) AND B (2,-11)Sketch on different different
1. 1 answer
2. 379 views
In a sector COD of a circle, centre O , in which angle COD =4/3 radians. The points A and B lie on the OD and OC respectively,
1. 4 answers
2. 1,394 views
4. a metal cylinder of height 4.5 cm and base area 24 cm2.metal cylinder 4.5 cm The density of the metal is 7900 kg m–3. (a)
1. 2 answers
2. 509 views
4. a metal cylinder of height 4.5 cm and base area 24 cm2.metal cylinder 4.5 cm The density of the metal is 7900 kg m–3. (a)
1. 1 answer
2. 408 views
The point P(5,4) is on the curve y=f(x). State the coordination of the image of P when the graph of y=f(x) is transformed to the
1. 3 answers
2. 673 views
The curve y = (x^2-4) is translated by(2 0). Write down an equation for the translated graph.Explain
1. 6 answers
2. 3,226 views
the graph of curve y=f(x) has point P(2,1) lies on the curve.On the graph y=2f(x+3) label the image of the point P, giving its
1. 3 answers
2. 429 views
the graph of curve y=f(x) has point P(2,1) lies on the curve.On the graph y=2f(x+3) label the image of the point P, giving its
1. 3 answers
2. 669 views
There is a curve with equation y=3/x, xis not equal 0. Sketch the curve with equation y=3/(x+2), xis not equal to -2, showing
1. 4 answers
2. 362 views
There is a graph with maximum point (-2,5) and an asymptote y=1.Sketch the curve with equation y=f(x)+2?
1. 1 answer
2. 337 views
The graph of y=ax^2+bx+c is translated by the vector (4 5). The resulting graph is y=2x^2-13x+21.Find the values of a,b and c
1. 1 answer
2. 449 views
Describe the single transformation that maps the graph of y=3-(1/4*x*2) onto the graph y=(1/2*x^2)-6.
1. 1 answer
2. 352 views
Point A having coordintes (3,-7) lies on the curve y=f(x). State the coordinates of the image of A when the graph of y=f(x) is
1. 1 answer
2. 385 views
Point A having coordintes (3,-7) lies on the curve y=f(x). State the coordinates of the image of A when the graph of y=f(x) is
1. 1 answer
2. 629 views
There is a graph with maximum point (-2,5) and an asymptote y=1.Sketch the curve with equation y=f(x)+2?Does the asymptote
1. 1 answer
2. 382 views
The graph of y=ax^2+bx+c is translated by the vector (4 5).The resulting graph is y=2x^2-13x+21.Find the values of a,b and c.
1. 4 answers
2. 973 views
The graph of y=x^2-2x+1 is translated by the vector (2 3).The graph so obtained is reflected in the x-axis and finally it is
1. 4 answers
2. 1,868 views
Point A having coordinates (3,-7) lies on the curve y=f(X). State the coordinates of A when y=f(X) is transformed to
1. 1 answer
2. 430 views
An examination consists of a section A, containing 10 short questions, and a section B, containing 5 long questions. Candidates
1. 4 answers
2. 1,921 views
How to know a given question is of permutation or combination or both combined?
1. 1 answer
2. 331 views
How many 5 digits numbers less than 60000 and even can be formed using the digits 1,2,4,5,7 and 9
1. 4 answers
2. 1,205 views
1.A group of five people consists of two women.Alice,Betty, and three men, Carl,David and Ed. Find the number of ways in which
1. 2 answers
2. 977 views
1.Issam has 11 different CDs of which 6 are pop music , 3 are jazz and 2 are classical. Issam makes a selection of 2 pop music
1. 4 answers
2. 3,132 views
There are twenty numbered balls in a bag.Two of the balls are numbered 0,six are numbered 1, five are numbered 2 and seven are
1. 3 answers
2. 1,481 views
There are twenty numbered balls in a bag.Two of the balls are numbered 0,six are numbered 1, five are numbered 2 and seven are
1. 2 answers
2. 1,006 views
A squad of 20 boys, which includes 2 sets of twins , is available for selection for a cricket team of 11 players. Calculate the
1. 3 answers
2. 590 views
A squad of 20 boys, which includes 2 sets of twins , is available for selection for a cricket team of 11 players. Calculate the
1. 4 answers
2. 1,411 views
A class test consists of 4 Algebra questions,W ,X,Y and Z
1. 1 answer
2. 360 views
A class test consists of 4 Algebra questions,W ,X,Y and Z, and 3 Geometry questions,A,B,C and D.The teacher decides that the
1. 2 answers
2. 618 views
aA class test consists of 4 Algebra questions,W ,X,Y and Z, and 3 Geometry questions,A,B,C and D.The teacher decides that the
1. 2 answers
2. 533 views
a/A class test consists of 4 Algebra questions,W ,X,Y and Z, and 3 Geometry questions,A,B,C and D.The teacher decides that the
1. 6 answers
2. 891 views
A class test consists of 4 Algebra questions,W ,X,Y and Z, and 4 Geometry questions,A,B,C and D.The teacher decides that the
1. 2 answers
2. 1,057 views
What is tensile strength?
1. 1 answer
2. 370 views
tom is marking the locations of active volcanoes on a world map. Explain how the locations of the valcanoes are related to
1. 2 answers
2. 535 views
Ferrochrome is an alloy of iron and chromium. Ferrochrome can be dissolved in dilute sulfuricacid to produce a mixture of FeSO4
1. 4 answers
2. 1,487 views
A certain disease is present in 1 in 200 of the population.In a mass screening program quick test for the disease is used, but
1. 4 answers
2. 776 views
How can I make probability questions easy?I feel it difficult.My syllabus includes mutually exclusive events, dependent and
1. 1 answer
2. 318 views
How to identify condition in conditional probability statement?
1. 1 answer
2. 408 views
A six side dice is biased so that, when it is thrown, the probability of obtaining a score of 6 is 5/9 and of obtaining scores
1. 5 answers
2. 456 views
A certain disease is present in 1 in 200 of the population.In a mass screening program quick test for the disease is used, but
1. 5 answers
2. asked by Raj
3. 1,348 views
How to distinguish probability question with conditional probability and another question of probability and combinations?
1. 1 answer
2. 308 views
Four fair sided dice, each with faces marked 1,2,3,4,5,6, are thrown on 7 occasions.Find the probability that the numbers shown
1. 3 answers
2. 2,660 views
What scale should I take for (16,24,47,94,141,188)on x-axis and (15.6,23.1,42.6,82.6,116.3,149.3) on y-axis in a4 size graph?
1. 1 answer
2. 253 views
Find f''(x) for f(x)=15/(2x+1)^1/3
1. 1 answer
2. 238 views
Can we write derivative of 5(2x-3)^-3 directly 5*-3(2x-3)^-3-1 *coefficient of x, instead of using chain rule.In what type of
1. 4 answers
2. 358 views
What scaling can I take on A4 size graph for readings through experiment (16,24,47,94,141,188) on x-axis and
1. 1 answer
2. 280 views
What scale should I take for readings like (6.38,12.7,19.1,25.53,31.91,38.29) on x-axis and (1.27,1.25,1.21,1.18,1.14,1.12) on
1. 1 answer
2. 277 views
How to get y-intercept from graph.
1. 1 answer
2. 293 views
Q.a.Find the stationary points on the graph of y=12x+3x^2-2x^3 and sketch the curve.b.How does your sketch show that the
1. 4 answers
2. 970 views
Q. The sum of the two shortest sides of a right-angles triangle is 18cm.Calculatea.the least possible length of the hypotenuse
1. 2 answers
2. 763 views
A open cylindrical wastepaper bin, of radius r cm and volume V cm^3, is to have a surface area of 5000cm^3.a.Show that V=1/2
1. 3 answers
2. 1,246 views
One side of a rectangular pen is formed by a hedge. The other three sides are made using fencing.The length of the rectangle is
1. 3 answers
2. 934 views
Find the coordinates of the stationary points on the curve y= x+4/x determine the nature of the turning points.Find also the set
1. 3 answers
2. 862 views
Initially there were 1.0mol of a and 0.2 mol of b in the reaction mixture.a and b reacted together to produce an equilibrium
1. 4 answers
2. 1,497 views
The equilibrium between three substances, a, B and c is shown below.A(g) + B(g) C(g) Initially there were 0.1 mol of a and 0.2
1. 4 answers
2. 2,863 views
Gaseous hydrogen and gaseous iodine react together to form hydrogen iodide.H2 + I2 2HI a The graph shows how the amount of
1. 2 answers
2. 762 views
H2+I2 ⇌2HIIF we have graph of no of moles of HI against time then how can we know at what rate No. of moles H2 levels off with
1. 1 answer
2. 349 views
Find the area enclosed by y=6x^2 on the right side of x-axis with curve from origin to (5,0)
1. 1 answer
2. 349 views
Find the area enclosed between y=8 & y=3x^8+5
1. 1 answer
2. 243 views
Find the area under the curve y=5/x^2 between x=-3 and x=-1.
1. 1 answer
2. 314 views
There is a graph of y=1/sqrtx.Show that the area of the region between line and curve at x=1 and x=3 is 3-(5sqrt3/3).
1. 1 answer
2. 320 views
There is a graph of y=1/sqrtx.Show that the area of the region between line and curve at x=1 and x=3 is 3-(5sqrt3/3).👍 1 👎
1. 3 answers
2. 519 views
Evaluate integral 3x(X-2) from 0 to 2 and comment on your answer.
1. 3 answers
2. 379 views
Find the area enclosed between the straight line y=12x+14 and the curve y=3x^2+6x+5
1. 2 answers
2. 569 views
There is a diagram with the curve y=(2x-5)^4.The point P has coordinates (4,81) and the tangent to the curve at P meets the
1. 7 answers
2. 1,315 views
Find the area above the curve starting from 0 to 1 on x-axis of y=1/(2x+1)^2
1. 1 answer
2. 336 views
Find the area of the region enclosed between the curves y=(x-2)^4 and y=(x-2)^3.
1. 13 answers
2. 577 views
Find the area above curve y=(1/2*x-2)^6+5 enclosed by a line cutting at (0,y) and (x,y).Note.It is a straight line.
1. 6 answers
2. 434 views
Find the area above curve y=(1/2*x-2)^6+5 enclosed by a line cutting at (0,y) and (x,y).Note.It is a straight line Oops. I
1. 1 answer
2. 416 views
Find the area above curve y=(1/2*x-2)^6+5 enclosed by a line cutting at (0,y) and (x,y).Ans.438.85
1. 1 answer
2. 343 views
Find the area above curve y=(1/2*x-2)^6+5 enclosed by a line cutting at (0,y) and (x,y).Note.It is a straight line. Huh? It
1. 2 answers
2. 603 views
Find the area above curve y=(1/2*x-2)^6+5 enclosed by a line cutting at (0,y) and (x,y).Note.It is a straight line. 👍 0 👎
1. 9 answers
2. 616 views
What is difference between straight chain and branched chain?Do we need to remember the displayed formula of any non-cyclic
1. 3 answers
2. 443 views
Write a VB.NET program to check if the sum of all the 10's in the array is exactly 30. Return false if the condition does not
1. 1 answer
2. 373 views
Find the value of cos2x=3/4.Find the two values of x.
1. 1 answer
2. 352 views
Find the value of cos2x=3/4.Find the two values of x.0<x>pi(180)
1. 4 answers
2. 294 views
Can somebody give me clue where I can get programming help?
1. 5 answers
2. 363 views
Can somebody give me clue where I can get programming help?👍 0 👎 0 👁 18 asked by Raj today at 8:52am google search??
1. 1 answer
2. 504 views
Write a VB.NET program code to find second largest element in an array.
1. 3 answers
2. 2,038 views
Can anybody help to WAP to arrange the elements of array where all positive integers appear before negative integers.
1. 3 answers
2. 395 views
WAP to find maximum and minimum element in an array.InVBADim a(5), n As Integer Console.WriteLine("Enter 5 numbers") For n = 1
1. 1 answer
2. 376 views
WAP to check if number is in array using VBA.Dim a(4), n, no As Integer Console.WriteLine("Enter a no.") For n = 0 To 4 a(n) =
1. 5 answers
2. 396 views
WAP to reverse an array of integers in VBA.Dim a(5), n As Integer Dim b = 0, e = n - 1, temp As Integer Console.WriteLine("Enter
1. 1 answer
2. 325 views
Differentiate between geometrical and optical isomers?
1. 1 answer
2. 359 views
Explain me about potential dividers and potentiometers. Also the potentiometers used to compare cell e.m.f.sDon't give me
1. 4 answers
2. 413 views
A battery, an ammeter and a variable resistor connected in series.A voltmeter is connected across fixed resisitor.The value of
1. 3 answers
2. 1,101 views
Find the probabilities P(1.5<Z<2) and P(-2.5>Z<-0.5)
1. 1 answer
2. 231 views
1.Find P(Z<-1.97 or Z>2.5),P(-2.08<Z<2.08) and P(0<Z<1.73)2.The masses of packages from a particular machine are normally
1. 4 answers
2. 506 views
The heights of boys at a particular age follow a normal distribution with mean 150.3 and standard deviation 5cm. Find the
1. 3 answers
2. 1,520 views
The number of hours of life of a certain type of torch battery is normally distributed with mean 150 and standard deviation 12.
1. 4 answers
2. 1,059 views
Cartons of milk from a particular supermarket are advertised as containing 1 litre of milk,but in fact the volume of the milk in
1. 4 answers
2. 1,085 views
The weights of vegetable marrows supplied to retailers by a wholesaler have a normal distribution with mean 1.5 kg and standard
1. 3 answers
2. 646 views
An intelligence test used in a particular country has scores which are normally distributed with mean 100 and standard deviation
1. 3 answers
2. 912 views
Cartons of milk from a particular supermarket are advertised as containing 1 litre of milk,but in fact the volume of the milk in
1. 4 answers
2. 889 views
Cartons of milk from a particular supermarket are advertised as containing 1 litre of milk,but in fact the volume of the milk in
1. 7 answers
2. 1,489 views
How to compute Z for confidence intervals in calculators allowed in exams?
1. 1 answer
2. 338 views
Find the value of x in X follows normal distribution(5,9/4) where P(X<x)=0.3.
1. 4 answers
2. 377 views

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