Ask Questions, Get Answers
Menu
X
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
15 Test Series
CBSE XII
Math
JEEMAIN
Math
Physics
Chemistry
Practice Test Series
CBSE XI
Math
NEET
Physics
Chemistry
Biology - XII
Biology - XI
Olympiad class V
Math - 5 Test Series
Olympiad class VI
Math - 5 Test Series
studyplans
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
15 Test Series
CBSE XII
Math
JEEMAIN
Math
Physics
Chemistry
Practice Test Series
CBSE XI
Math
NEET
Physics
Chemistry
Biology - XII
Biology - XI
Olympiad class V
Math - 5 Test Series
Olympiad class VI
Math - 5 Test Series
mobile
exams
ask
sample papers
tutors
pricing
login
X
ASK
Home
>>
AIMS
Let two numbers have arithmetic mean 9 and geometric mean 4. Then these numbers are the roots of the quadractic equation.
$\begin{array}{1 1}(A)\;x^2+18x+16=0 \\(B)\;x^2-18x-16=0 \\(C)\;x^2+18x-16=0 \\ (D)\;x^2-18x+16=0 \end{array} $
aims
class-xii
q21
Share
asked
Apr 11, 2014
by
meena.p
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1 Answer
$x^2-18x+16=0 $
Hence D is the correct answer.
answered
Apr 11, 2014
by
meena.p
Please
log in
or
register
to add a comment.
Related questions
Let G be the geometric mean of two positive numbers a and b, and M be the arithmetic mean of $\;\large\frac{1}{a} \;$ and $\;\large\frac{1}{b}\;$ . If $\;\large\frac{1}{M} : G \;$ is 4 : 5 , then a : b can be :
jeemain
mathematics
2014
set-06
asked
May 21, 2014
by
yamini.v
0
answers
The equation of the pair of lines passing through the origin whose sum and product of slopes are respectively the arithmetic mean geometric mean of 4 and 9 is
jeemain
eamcet
math
2013
q46
asked
Sep 16, 2013
by
meena.p
2
answers
Arithmetic mean of 2 numbers is 127.5 and geometric mean is 60 find the val
asked
Oct 17
by
yamunagowda1996
1
answer
Ask Question
Tag:
Math
Phy
Chem
Bio
Other
SUBMIT QUESTION
►
Please Wait
Take Test
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
15 Test Series
JEEMAIN
350+ TESTS
NEET
320+ TESTS
CBSE XI MATH
50+ TESTS
CBSE XII MATH
80+ TESTS
...