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Sahil Haque
Subject: Maths
, asked on 27/3/18
a plane left 30 minutes later than the scheduled time and inorder to reach the desination, 1500km away in time. It has to increase the speed by 100km/h from the usual speed. find its usual speed.
Answer
1
Sameer Ahmed
Subject: Maths
, asked on 27/3/18
Question 15
Answer
2
Taniqsha
Subject: Maths
, asked on 27/3/18
1/a + 1/b + 1/x= 1/(a+b+c)
Answer
1
Champ Jee
Subject: Maths
, asked on 27/3/18
Which constant should be added or subtracted to solve the quadratic equation 4x^2 - 3x -5 by method of completing the square?
Answer by expert shows( root 3/8)2. But how? I dint understand? Please explain. Tomorrow's exam!:
Q. Given, quadratic equation is :
-
4
x
2
-
3
x
-
5
=
0
Answer
3
Champ Jee
Subject: Maths
, asked on 27/3/18
Question in pic!!
My answer is coming 2/9. Is that right?:
Q. Which constant can be added subtracted from the equations
9
x
2
-
2
2
x
+
8
=
0
to solve it by method of completing the square.
Answer
1
Amit Rana
Subject: Maths
, asked on 27/3/18
Zz answer question no 1
1.
Find the roots of
a
2
x
2
+ (a
2
- b
2
)x - b
2
= O
2. How many tangents can a circle have ?
Answer
2
Payal Arora
Subject: Maths
, asked on 27/3/18
Q.3. Find the value
6
+
6
+
6
+
.
.
.
.
.
.
Answer
3
Bhawana
Subject: Maths
, asked on 27/3/18
Solve the equation by the method of
completing the square
: x
2
+12x-45=0
Answer
1
Charulatha
Subject: Maths
, asked on 27/3/18
How 16 changed into 128.... pls answer with explanation....
Answer
1
Charulatha
Subject: Maths
, asked on 27/3/18
Q.23. If x = - 2 is a root of the question
3
x
2
+
7
x
+
p
=
0
, find the value of k so that the roots of the equation
x
2
+
k
4
x
+
k
-
1
+
p
=
0
Answer
2
Champ Jee
Subject: Maths
, asked on 27/3/18
Q.24. The denominator of a fraction is one more than twice its numerator. If the sum of the fraction and its reciprocal is
34
15
, find the fraction.
Answer
1
अर्कज ..
Subject: Maths
, asked on 27/3/18
Solve the problem:
11. Sum of the areas of two squares is 468 m
2
. If the difference in their perimeters is 24 m, find the sides of the two squares.
Answer
1
Rajeeb Biswas
Subject: Maths
, asked on 27/3/18
The cost of 2k articles is (54 + 5k) while the cost of (k + 2) articles is (10k – 4). Find k.
Pls solve it whole steps and no links pls!!
Answer
1
Yash Behl
Subject: Maths
, asked on 27/3/18
23rd
Q.23. While boarding an aeroplane, a passenger got hurt. The pilot, showing promptness and concern, made arrangements to hospitalise the injured and so the plane started late by 30 minutes. To reach the destination, 1500 km away, in time, the pilot increased the speed by 100 km/hour. Find the original speed/hour of the plane. Do you appreciate the values shown by the pilot, namely, promptness in providing help to the injured and his efforts to reach in time?
Answer
1
Yash Behl
Subject: Maths
, asked on 27/3/18
Solve this :
21
.
Solve
for
x
:
2
2
x
-
1
x
-
3
-
3
x
+
3
2
x
-
1
=
5
,
given
that
x
≠
-
3
,
x
≠
1
2
.
23
.
Prove
that
the
tangent
drawn
at
the
mid
-
point
of
an
arc
of
a
circle
is
parallel
to
the
chord
joining
the
end
points
of
the
arc
.
25
.
If
p
times
the
p
th
term
of
an
A
.
P
.
is
equal
to
q
times
the
q
th
term
,
find
(
p
+
q
)
th
term
of
the
A
.
P
.
Answer
2
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What are you looking for?
Answer by expert shows( root 3/8)2. But how? I dint understand? Please explain. Tomorrow's exam!:
Q. Given, quadratic equation is :
-
My answer is coming 2/9. Is that right?:
Q. Which constant can be added subtracted from the equations to solve it by method of completing the square.
1. Find the roots of
a2x2 + (a2 - b2)x - b2 = O
2. How many tangents can a circle have ?
11. Sum of the areas of two squares is 468 m2. If the difference in their perimeters is 24 m, find the sides of the two squares.
Pls solve it whole steps and no links pls!!
Q.23. While boarding an aeroplane, a passenger got hurt. The pilot, showing promptness and concern, made arrangements to hospitalise the injured and so the plane started late by 30 minutes. To reach the destination, 1500 km away, in time, the pilot increased the speed by 100 km/hour. Find the original speed/hour of the plane. Do you appreciate the values shown by the pilot, namely, promptness in providing help to the injured and his efforts to reach in time?