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A motor boat whose speed is 18 km/h in still water takes 1 hour more to go 24 km upstream
explain componendo and dividendo....
If -4 is a root of the quadratic equation x2+px-4=k and the quadratic equation x2+px+k=0 has equal roots. Find the value of k
two water taps together can fill a tank in 9(3/8 ) hours . the tap of the larger diameter takes 10 hours less than smaller one to fill the tank seprately.find the time in which each tap can seprately fill the tank.
1. Write a quadratic polynomial whose zeroes are ( root 2 + 1) ( root 2 - 1).
2.Show that one zero of 8x2+30x+27 is the square of the other.
3.If one zero of the polynomial 2x2+3x+lamda= 1/2,find the value of lamda and the other zero.
solve;
1/a+b+x=1/a+1/b+1/x
If the roots of the equation
(a-b)x2+(b-c)x+(c-a)=0 are equal , prove that b+c=2a.
if the roots of this equation (a2 + b2)x2 - 2(ac +bd)x + (c2 + d2)=0
are equal prove that a/b =c/d
{plz note: i was trying to put 2 as square and it wasn't working,so all the twos exept the one in b are squares }
Plz help me solving this question
if x2 + x + 1 is a factor of x4 + ax2 + b , then the values of a and b respectively are ???
solve for x:-
a/(x-a) + b/(x-b) = 2c/(x-c)
The product of two numbers is 56. When their sum is added to the sum of their squares, we get 128. Find the numbers.
At present Asha's age is 2 more than square of her daughter Nisha's age. When Nisha grows to her mother's present age, Asha's age would be one year less than 10 times the present age of Nisha. Find the present age of both Asha and Nisha.?
solve for x :root 3x2- 2 root 2x- 2 root 3=0
Find the positive value of k, for which the equation x2 + kx + 64 =0 and x2 - 8x + k=0 will both have real roots.
the speed of a boat in still water is 15 km / hr . it can go 30 km upstream and return downstream to the orginal point in 4 hours and 30 minutes . find the speed of the stream .
Two Pipes running together can fill a cistern in 3 1/13 minutes.If one Pipe takes 3 miutes more than the other to fill it, find the time in which each pipe would fill the cistern.
x2-2(a2+b2)x+(a2-b2)2=0
Seven years ago Varun's age was five times the square of Swati's age. Three years hence Swati's age will be two fifth of Varun's age. Find their present ages.
4x2 + 4bx - (a2 - b2 ) = 0 please solve this equation................
A trader bought a number of articles for Rs 900. Five articles were found damaged. He sold each of the remaining articles at Rs 2 more than what he paid for it. He got a profit of Rs 80 on the whole transaction. Find the number of articles he bought.
solve for x: a/ax-1 + b/bx-1 = a+b, where x is not = 1/a, 1/b. a+b is not = 0, ab is not = 0
Q. A NUMBER WHEN DIVIDED BY A DIVISOR , LEAVES A REMAINDER OF 63. IF THE REMAINDER IS 55 WHEN TWICE THE SAME DIVISOR, WHAT IS THE DIVISOR ?
if the roots of the equation (b-c)x2+(c-a)x +a-b=0 are equal,then prove that 2b=a+c.help me !
The difference between the perimeters of two equilateral triangles is 9 cm, while the sum of their areas iscm2.
Ifxcm is the side of the smaller equilateral triangle, then which quadratic equation represents the given information?
pls explain me this question
A pole has to be erected at a point on the boundary of a circular park of diameter of 13 metres in such a way that the differences of it its distances from two diametrically opposite fixed gates A and B on the boundary is 7 metres. Is it possible to do so? If yes at what distances from the two gates should be pole be erected
two pipes running together can fill a tank in 11 1/9 minutes. if one pipe takes 5 minutes more than the other to fill the tank seperately , find the time taken by each pipe to fill the tank seperately .
the denominator is one more than twice the numerator , if the sum of the fraction and its recoprocal is 2 16/21 . find the fraction
if the pth term of an A.P. is 1/q and the qth term is 1/p,show that the sum of pq terms is 1/2(pq+1).
At 't' minutes past 2pm, the time needed by the minutes hand of a clock to show 3 pm was found to be 3 minutes less than t2/4 minutes. Find 't'.
what do you mean by coincident roots?
A takes 6 days less than time taken by B to finish the piece of work. if both A and B together can finish the work in 4 days find the time taken by B to finish the work
A peacock is sitting on the top of a pillar, which is 9m high. From a point 27m away from the bottom of the pillar, a snake is coming to its hole at the base of the pillar. Seeing the snake the peacock pounces on it. If their speeds are equal, at what distance from the whole is the snake caught?
A MOTOR BOAT WHOSE SPEED IS 20KM/H IN STILL WATER, TAKES 1 HOUR MORE TO GO 48 KM UPSTREAM THAN TO RETURN DOWNSTREAM TO THE SAME SPOT FIND THE SPPEED OF THE STREAM
IF THE ROOTS OF THE EQ (a2+b2)x2 - 2(ac+bd)x + (c2+d2)c = 0 EQUAL PROVE THAT a/b = c/d
what is the expanded form of (a+b)whole cube ?
sum of the areas of two squares is 468 m2 . if the difference of their perimeter is 24 m . find the sides of the squares?
Prove that for all real values of p the equation p(x-1)(x-2) + (2x-3) = 0 has real roots.
The perimeter of a right triangle is 60cm. Its hypotenuse is 25cm.Find the area of the triangle.
sum of the areas of two squares is 640 m2.if the difference of their perimeters is64m,find the sides of the two squares.
Divide 41 into two positive parts such that difference of their squares is 369.
If the roots of equation (c2 - ab) x2 - 2(a2 -bc) x + b2 -ac = 0 are equal, proove that either a=o, or a3+b3+c3 = 3abc.
Pleasehelp to solve above question urgently.
a person goes a distance of 30 km on his bicycle. the no: of hrs taken by him is 1 hour less than his av.speed in km/hr.find the time taken by him to complete the journey.
Q.>if x= 2/3 and x= -3 are the roots of the equation ax2 +7x+b=0, find the value of a and b.
If alpha and beta are the roots of x2 +5x+a=0 and 2alpha +5beta= -1,then a is equal to
A piece of cloth costs Rs 200 .If the piece were 5m longer, and each metre of cloth costed Rs 2 less the cost of the piece would have remained unchanged. How long is the piece and what is its original rate per metre.
The ans. is 20m & Rs.10. pls give me the steps
what is the formula of (a+b) whole cube
Solve : (k+4)x2+(k+1)x +1=0 has equal roots . Find the value of k.
solve for x : 16x2 - 8a2x + (a4-b4) = 0
a train travels a distance of 480 km at a uniform speed . If the speed had been 8 km/hr less, then it would have taken 3 hrs more to cover the same distance . we need to find the speed of the train.
Some students planned a picnic. The budget for food was Rs. 500. But 5 of these failed to go & thus the cost of food for each student increased by Rs. 5. How many students attended the picnic?
Find the value of k for which the equation kx[x-2]+6=0 has equal roots.
A room in a hotel had been booked for Rs.1400 for new year celebrations by some boys, but 4 of them failed to reach and each of the rest of the boys had to pay Rs.40 extra. Form a quadratic equation with full explanation. We need to find the number of boys initially.
please provide me this answer
solve for x :-
(x-a)/(x-b) + (x-b)/(x-a) = a/b + b/a
find the roots of equation-
ax2+a=a2x+x
the difference of two numbers is 5 and the difference of their reciprocals is 1/10. find the no.s.....
plz show wid procedure.... answer is not comin..
If the roots of the equation (b-c)x2 +(c-a)x +(a-b) = 0 are equal than prove that
2b = c + a
solve by completing square:
x2 - (root2 + 1)x + root 2=0
solve by completing the square method-
1.6m2 +m=2
2.4p2 +7=12p
A person on tour has Rs. 360 for his daily expenses. If he exceeds his tour programme by four days, he must cut down his daily expenses by Rs. 3 per day. Find the no. of days of his tour programme.
Solve for x :
9x2 - 9( a + b )x + ( 2a2 + 5ab + 2b2 )
Solve this by both factorisation and by using quadratic formula.
in a flight of 2800 km, an aircraft was slowed down due to bad weather. its average speed is reduced by 100km/h and time increased by 30 mins. find the original duration.
Akshit's father's present age is nine times the square of Akshit's age. 32 years hence, his father's age will be double of his agethen. Find their present age
Solve : x2-(root3+1)x+root3=0 by the method of completing the square.
solve
p2x2+(p2-q2)x-q2=0
a train travels 360 km at uniform speed . if the speed had been 5 km / hr more it would have taken 1 hour less for the same journey. find the speed of the train.
Solve by completing the sqaure
a2x2 + 4abx + 4b2 = 0
If the price of a book is reduced by Rs.5 ,a person can buy 5 more books for Rs.300 . Find the original list price of the article ?
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Syllabus
A motor boat whose speed is 18 km/h in still water takes 1 hour more to go 24 km upstream
explain componendo and dividendo....
If -4 is a root of the quadratic equation x2+px-4=k and the quadratic equation x2+px+k=0 has equal roots. Find the value of k
5x2-32x+48=0
two water taps together can fill a tank in 9(3/8 ) hours . the tap of the larger diameter takes 10 hours less than smaller one to fill the tank seprately.find the time in which each tap can seprately fill the tank.
1. Write a quadratic polynomial whose zeroes are ( root 2 + 1) ( root 2 - 1).
2.Show that one zero of 8x2+30x+27 is the square of the other.
3.If one zero of the polynomial 2x2+3x+lamda= 1/2,find the value of lamda and the other zero.
solve;
1/a+b+x=1/a+1/b+1/x
If the roots of the equation
(a-b)x2+(b-c)x+(c-a)=0 are equal , prove that b+c=2a.
if the roots of this equation (a2 + b2)x2 - 2(ac +bd)x + (c2 + d2)=0
are equal prove that a/b =c/d
{plz note: i was trying to put 2 as square and it wasn't working,so all the twos exept the one in b are squares }
Plz help me solving this question
if x2 + x + 1 is a factor of x4 + ax2 + b , then the values of a and b respectively are ???
solve for x:-
a/(x-a) + b/(x-b) = 2c/(x-c)
The product of two numbers is 56. When their sum is added to the sum of their squares, we get 128. Find the numbers.
At present Asha's age is 2 more than square of her daughter Nisha's age. When Nisha grows to her mother's present age, Asha's age would be one year less than 10 times the present age of Nisha. Find the present age of both Asha and Nisha.?
(a + b + c)the whole square
(a + b - c)the whole square
(a - b + c) the whole square
solve for x :root 3x2- 2 root 2x- 2 root 3=0
Find the positive value of k, for which the equation x2 + kx + 64 =0 and x2 - 8x + k=0 will both have real roots.
5x+y=2, 6x−3y=1
the speed of a boat in still water is 15 km / hr . it can go 30 km upstream and return downstream to the orginal point in 4 hours and 30 minutes . find the speed of the stream .
Two Pipes running together can fill a cistern in 3 1/13 minutes.If one Pipe takes 3 miutes more than the other to fill it, find the time in which each pipe would fill the cistern.
x2-2(a2+b2)x+(a2-b2)2=0
Seven years ago Varun's age was five times the square of Swati's age. Three years hence Swati's age will be two fifth of Varun's age. Find their present ages.
4.2^(2x+1)-9.2^(x)+1=0
4x2 + 4bx - (a2 - b2 ) = 0 please solve this equation................
A trader bought a number of articles for Rs 900. Five articles were found damaged. He sold each of the remaining articles at Rs 2 more than what he paid for it. He got a profit of Rs 80 on the whole transaction. Find the number of articles he bought.
solve for x: a/ax-1 + b/bx-1 = a+b, where x is not = 1/a, 1/b. a+b is not = 0, ab is not = 0
Q. A NUMBER WHEN DIVIDED BY A DIVISOR , LEAVES A REMAINDER OF 63. IF THE REMAINDER IS 55 WHEN TWICE THE SAME DIVISOR, WHAT IS THE DIVISOR ?
if the roots of the equation (b-c)x2+(c-a)x +a-b=0 are equal,then prove that 2b=a+c.help me !
The difference between the perimeters of two equilateral triangles is 9 cm, while the sum of their areas is
cm2.
Ifxcm is the side of the smaller equilateral triangle, then which quadratic equation represents the given information?
pls explain me this question
A pole has to be erected at a point on the boundary of a circular park of diameter of 13 metres in such a way that the differences of it its distances from two diametrically opposite fixed gates A and B on the boundary is 7 metres. Is it possible to do so? If yes at what distances from the two gates should be pole be erected
two pipes running together can fill a tank in 11 1/9 minutes. if one pipe takes 5 minutes more than the other to fill the tank seperately , find the time taken by each pipe to fill the tank seperately .
the denominator is one more than twice the numerator , if the sum of the fraction and its recoprocal is 2 16/21 . find the fraction
if the pth term of an A.P. is 1/q and the qth term is 1/p,show that the sum of pq terms is 1/2(pq+1).
Question) Jim and Tim were studying progressions and their properties. They wrote a quadratic equation, ax2 - 2bx + c = 0 and assumed that a, b and c were in GP. They both had their own theories about the nature of the roots. Tim claimed that the equation had real roots and that the roots were unequal and distinct while Jim claimed that the roots were imaginary.
Which of the following statements is true?
(A) Tim was correct
(B) Jim was correct.
(C) Both Tim and Jim were correct.
(D) Neither Tim nor Jim was correct.
At 't' minutes past 2pm, the time needed by the minutes hand of a clock to show 3 pm was found to be 3 minutes less than t2/4 minutes. Find 't'.
what do you mean by coincident roots?
A takes 6 days less than time taken by B to finish the piece of work. if both A and B together can finish the work in 4 days find the time taken by B to finish the work
1. alpha+1, alpha+6
2. alpha+1, -(alpha+6)
3. -(alpha+1), alpha+6
4. -(alpha+1), -(alpha+6)
A peacock is sitting on the top of a pillar, which is 9m high. From a point 27m away from the bottom of the pillar, a snake is coming to its hole at the base of the pillar. Seeing the snake the peacock pounces on it. If their speeds are equal, at what distance from the whole is the snake caught?
A MOTOR BOAT WHOSE SPEED IS 20KM/H IN STILL WATER, TAKES 1 HOUR MORE TO GO 48 KM UPSTREAM THAN TO RETURN DOWNSTREAM TO THE SAME SPOT FIND THE SPPEED OF THE STREAM
IF THE ROOTS OF THE EQ (a2+b2)x2 - 2(ac+bd)x + (c2+d2)c = 0 EQUAL PROVE THAT a/b = c/d
what is the expanded form of (a+b)whole cube ?
sum of the areas of two squares is 468 m2 . if the difference of their perimeter is 24 m . find the sides of the squares?
Prove that for all real values of p the equation p(x-1)(x-2) + (2x-3) = 0 has real roots.
The perimeter of a right triangle is 60cm. Its hypotenuse is 25cm.Find the area of the triangle.
sum of the areas of two squares is 640 m2.if the difference of their perimeters is64m,find the sides of the two squares.
Divide 41 into two positive parts such that difference of their squares is 369.
If the roots of equation (c2 - ab) x2 - 2(a2 -bc) x + b2 -ac = 0 are equal, proove that either a=o, or a3+b3+c3 = 3abc.
Pleasehelp to solve above question urgently.
a person goes a distance of 30 km on his bicycle. the no: of hrs taken by him is 1 hour less than his av.speed in km/hr.find the time taken by him to complete the journey.
Q.>if x= 2/3 and x= -3 are the roots of the equation ax2 +7x+b=0, find the value of a and b.
If alpha and beta are the roots of x2 +5x+a=0 and 2alpha +5beta= -1,then a is equal to
A piece of cloth costs Rs 200 .If the piece were 5m longer, and each metre of cloth costed Rs 2 less the cost of the piece would have remained unchanged. How long is the piece and what is its original rate per metre.
The ans. is 20m & Rs.10. pls give me the steps
what is the formula of (a+b) whole cube
Solve : (k+4)x2+(k+1)x +1=0 has equal roots . Find the value of k.
solve for x : 16x2 - 8a2x + (a4-b4) = 0
a train travels a distance of 480 km at a uniform speed . If the speed had been 8 km/hr less, then it would have taken 3 hrs more to cover the same distance . we need to find the speed of the train.
Some students planned a picnic. The budget for food was Rs. 500. But 5 of these failed to go & thus the cost of food for each student increased by Rs. 5. How many students attended the picnic?
Find the value of k for which the equation kx[x-2]+6=0 has equal roots.
A room in a hotel had been booked for Rs.1400 for new year celebrations by some boys, but 4 of them failed to reach and each of the rest of the boys had to pay Rs.40 extra. Form a quadratic equation with full explanation. We need to find the number of boys initially.
please provide me this answer
solve for x :-
(x-a)/(x-b) + (x-b)/(x-a) = a/b + b/a
find the roots of equation-
ax2+a=a2x+x
the difference of two numbers is 5 and the difference of their reciprocals is 1/10. find the no.s.....
plz show wid procedure.... answer is not comin..
If the roots of the equation (b-c)x2 +(c-a)x +(a-b) = 0 are equal than prove that
2b = c + a
solve by completing square:
x2 - (root2 + 1)x + root 2=0
solve by completing the square method-
1.6m2 +m=2
2.4p2 +7=12p
A person on tour has Rs. 360 for his daily expenses. If he exceeds his tour programme by four days, he must cut down his daily expenses by Rs. 3 per day. Find the no. of days of his tour programme.
CAT + RAT = 10KG
DOG + RAT = 20 kg
DOG + CAT = 24 kg
so what will be
DOG+CAT+RAT=?
answer quickly plz........
Solve for x :
9x2 - 9( a + b )x + ( 2a2 + 5ab + 2b2 )
Solve this by both factorisation and by using quadratic formula.
(Ans: Rs. 3000; Rs. 1350).
in a flight of 2800 km, an aircraft was slowed down due to bad weather. its average speed is reduced by 100km/h and time increased by 30 mins. find the original duration.
Akshit's father's present age is nine times the square of Akshit's age. 32 years hence, his father's age will be double of his agethen. Find their present age
Solve : x2-(root3+1)x+root3=0 by the method of completing the square.
solve
p2x2+(p2-q2)x-q2=0
a train travels 360 km at uniform speed . if the speed had been 5 km / hr more it would have taken 1 hour less for the same journey. find the speed of the train.
Solve by completing the sqaure
a2x2 + 4abx + 4b2 = 0
If the price of a book is reduced by Rs.5 ,a person can buy 5 more books for Rs.300 . Find the original list price of the article ?