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Khushboo
Subject: Maths
, asked on 17/5/18
BOARD QUESTIONS: Do give correct answer of the 7th question."DO NOT SEND ANSWERS THROUGH LINKS"
Q.7. Find the value of k, for which the quadratic equation
$\left(k-2\right){x}^{2}-2\left(2k-3\right)x+\left(5k-6\right)=0$
has real and equal roots.
[Ans. k = 1, 3]
Answer
1
Khushboo
Subject: Maths
, asked on 17/5/18
BOARD QUESTIONS: Do give correct answer of the 2nd question."DO NOT SEND ANSWERS THROUGH LINKS"
Answer
0
Khushboo
Subject: Maths
, asked on 10/5/18
!!"DO NOT SEND ANY LINKS" .Answer the 11th question:
11. Solve the quadratic equation x
^{2}
-3(x+3)=0
Answer
2
Khushboo
Subject: Maths
, asked on 10/5/18
$Findthevaluesofkforwhichthequadraticequation(k+4){x}^{2}+(k+1)x+1hasrealandequalroots.$
Answer
1
Khushboo
Subject: Maths
, asked on 10/5/18
!!!"DO NOT SEND ANY LINKS" .Answer the 6th question
Answer
1
Rajay Rajay Chakrasingh
Subject: Maths
, asked on 5/5/18
How to do number 1,4 and 5?
Answer
1
Khushboo
Subject: Maths
, asked on 4/5/18
!!!"DO NOT SEND ANY LINKS" .Answer the 10th question
Q.10. Solve the equation
$3{x}^{2}-x-7=0$
and give your answer correct to two decimal places.
Answer
1
Khushboo
Subject: Maths
, asked on 3/5/18
!!!"DO NOT SEND ANY LINKS" .Answer the 7th question
Q.7. In the figure ABCD is a parallelogram. E is the point on CD, AE intersect BD at O. EF
$\parallel $
CB and DF : FB = 3 : 1. Find
(i) area of
$\u25b3$
DFE : area of
$\u25b3$
DBC
(ii) area of
$\u25b3$
DFE : area of trapezium EFBC.
Answer
0
Rajay Rajay Chakrasingh
Subject: Maths
, asked on 2/5/18
How to do number 1, 4, 5 and 6?
Answer
2
Rajay Rajay Chakrasingh
Subject: Maths
, asked on 2/5/18
How to do?
$4)Solvetheequation\phantom{\rule{0ex}{0ex}}\frac{\left(x-a\right)\left(x-b\right)}{x-a-b}=\frac{\left(x-c\right)\left(x-d\right)}{x-c-d}\phantom{\rule{0ex}{0ex}}6)Iftherootsofthequadraticequation{x}^{2}+px+q=0are\mathrm{tan}30\xb0and\mathrm{tan}15\xb0respectively\phantom{\rule{0ex}{0ex}}thenfindthevalueof2+q-p$
Answer
1
Jayanti Goswami
Subject: Maths
, asked on 12/4/18
Solve:
{(1200/x)+2}(X-1) -1200 =60
Please use factorization method
Answer
1
Jayanti Goswami
Subject: Maths
, asked on 11/4/18
Solve:
(x+1)(2x+8) = (x+7)(x+3)
(use factorization method)
Answer
1
Rajay Rajay Chakrasingh
Subject: Maths
, asked on 9/4/18
Plz EXPLAIN
Q.11. The sum of all the real roots of the equation
${\left|x-2\right|}^{2}+\left|x-2\right|-2=0$
is?
Answer
2
Omm Prasad
Subject: Maths
, asked on 25/3/18
Please solve the 7th question.
Please do not provide any link.
Q.7. A goods train leaves a station at 6 p.m., followed by an express train which leaves at 8 p.m. and travels 20 km/hour faster than the goods train. The express train arrives at a station, 1040 km away, 36 minutes before the goods train. Assuming that the speeds of both the trains remain constant between the two stations; Calculate their speeds.
Answer
2
Prashant Mittal
Subject: Maths
, asked 4 days, 20 hours ago
Please provide answers
Answer
3
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What are you looking for?

Q.7. Find the value of k, for which the quadratic equation $\left(k-2\right){x}^{2}-2\left(2k-3\right)x+\left(5k-6\right)=0$ has real and equal roots.

[Ans. k = 1, 3]

11. Solve the quadratic equation x

^{2}-3(x+3)=0Q.10. Solve the equation $3{x}^{2}-x-7=0$ and give your answer correct to two decimal places.

Q.7. In the figure ABCD is a parallelogram. E is the point on CD, AE intersect BD at O. EF$\parallel $CB and DF : FB = 3 : 1. Find

(i) area of $\u25b3$DFE : area of $\u25b3$DBC

(ii) area of $\u25b3$DFE : area of trapezium EFBC.

$4)Solvetheequation\phantom{\rule{0ex}{0ex}}\frac{\left(x-a\right)\left(x-b\right)}{x-a-b}=\frac{\left(x-c\right)\left(x-d\right)}{x-c-d}\phantom{\rule{0ex}{0ex}}6)Iftherootsofthequadraticequation{x}^{2}+px+q=0are\mathrm{tan}30\xb0and\mathrm{tan}15\xb0respectively\phantom{\rule{0ex}{0ex}}thenfindthevalueof2+q-p$

{(1200/x)+2}(X-1) -1200 =60

Please use factorization method

(x+1)(2x+8) = (x+7)(x+3)

(use factorization method)

Q.11. The sum of all the real roots of the equation ${\left|x-2\right|}^{2}+\left|x-2\right|-2=0$ is?

Please do not provide any link.

Q.7. A goods train leaves a station at 6 p.m., followed by an express train which leaves at 8 p.m. and travels 20 km/hour faster than the goods train. The express train arrives at a station, 1040 km away, 36 minutes before the goods train. Assuming that the speeds of both the trains remain constant between the two stations; Calculate their speeds.