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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
$3{x}^{2}+7x+p=0$
, find the value of k so that the roots of the equation
${x}^{2}+k\left(4x+k-1\right)+p=0$
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
$\frac{34}{15}$
, 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 :
$21.\mathrm{Solve}\mathrm{for}\mathrm{x}:\phantom{\rule{0ex}{0ex}}2\left(\frac{2\mathrm{x}-1}{\mathrm{x}-3}\right)-3\left(\frac{\mathrm{x}+3}{2\mathrm{x}-1}\right)=5,\mathrm{given}\mathrm{that}\mathrm{x}\ne -3,\mathrm{x}\ne \frac{1}{2}.\phantom{\rule{0ex}{0ex}}23.\mathrm{Prove}\mathrm{that}\mathrm{the}\mathrm{tangent}\mathrm{drawn}\mathrm{at}\mathrm{the}\mathrm{mid}-\mathrm{point}\mathrm{of}\mathrm{an}\mathrm{arc}\mathrm{of}\mathrm{a}\mathrm{circle}\mathrm{is}\mathrm{parallel}\mathrm{to}\mathrm{the}\mathrm{chord}\mathrm{joining}\mathrm{the}\mathrm{end}\mathrm{points}\mathrm{of}\mathrm{the}\mathrm{arc}.\phantom{\rule{0ex}{0ex}}25.\mathrm{If}\mathrm{p}\mathrm{times}\mathrm{the}{\mathrm{p}}^{\mathrm{th}}\mathrm{term}\mathrm{of}\mathrm{an}\mathrm{A}.\mathrm{P}.\mathrm{is}\mathrm{equal}\mathrm{to}\mathrm{q}\mathrm{times}\mathrm{the}{\mathrm{q}}^{\mathrm{th}}\mathrm{term},\mathrm{find}(\mathrm{p}+\mathrm{q})\mathrm{th}\mathrm{term}\mathrm{of}\mathrm{the}\mathrm{A}.\mathrm{P}.$
Answer
2
Sanitya Srivastava
Subject: Maths
, asked on 27/3/18
40 years hence my age will be want I was 32 years ago. Find the present age?
Answer
2
Charulatha
Subject: Maths
, asked on 26/3/18
29. Sum of the areas of two squares is 400 cm
^{2}
. If the difference of their perimeters is 16 cm, find the sides of the two squares.
Answer
1
Ragini
Subject: Maths
, asked on 26/3/18
Recently I asked a doubt to experts regarding difficulty in finding the sum and the product for large numbers , One expert said that we can use quadratic formula but then finding the discriminant (finding square root) will also take more time right? Factorization is easy but finding factors for large numbers is also difficult and time consuming . So please help and solve this matter as fast as possible , Maths board on Wednesday :(
Answer
1
Shayan Aatif
Subject: Maths
, asked on 26/3/18
Question 27 plz do not tell in link. Plz fast.
Answer
2
Shayan Aatif
Subject: Maths
, asked on 26/3/18
26 question plz tell fast. Dont send link plz:
26. Speed of a boat in still water is 15 km/h. It goes 30 km upstream and returns back at the same point in 4 hours 30 minutes. Find the speed of the steam.
26 question plz tell fast. Dont send link plz
Answer
2
Sameer Ahmed
Subject: Maths
, asked on 26/3/18
Solve this:
Q. x
^{2}
- 4a
x
- b
^{2}
+ 4a
^{2}
= 0
Answer
1
Champ Jee
Subject: Maths
, asked on 26/3/18
Q42.
(This question is wrong; I think).
Q.42. A natural number when increased by 84 equals 160 times its reciprocal. Find the number.
Answer
6
Kiran Sidar
Subject: Maths
, asked on 26/3/18
find a quadratic equation whose zeros are 1/4 and-?2
Answer
2
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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.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?

Solve this :$21.\mathrm{Solve}\mathrm{for}\mathrm{x}:\phantom{\rule{0ex}{0ex}}2\left(\frac{2\mathrm{x}-1}{\mathrm{x}-3}\right)-3\left(\frac{\mathrm{x}+3}{2\mathrm{x}-1}\right)=5,\mathrm{given}\mathrm{that}\mathrm{x}\ne -3,\mathrm{x}\ne \frac{1}{2}.\phantom{\rule{0ex}{0ex}}23.\mathrm{Prove}\mathrm{that}\mathrm{the}\mathrm{tangent}\mathrm{drawn}\mathrm{at}\mathrm{the}\mathrm{mid}-\mathrm{point}\mathrm{of}\mathrm{an}\mathrm{arc}\mathrm{of}\mathrm{a}\mathrm{circle}\mathrm{is}\mathrm{parallel}\mathrm{to}\mathrm{the}\mathrm{chord}\mathrm{joining}\mathrm{the}\mathrm{end}\mathrm{points}\mathrm{of}\mathrm{the}\mathrm{arc}.\phantom{\rule{0ex}{0ex}}25.\mathrm{If}\mathrm{p}\mathrm{times}\mathrm{the}{\mathrm{p}}^{\mathrm{th}}\mathrm{term}\mathrm{of}\mathrm{an}\mathrm{A}.\mathrm{P}.\mathrm{is}\mathrm{equal}\mathrm{to}\mathrm{q}\mathrm{times}\mathrm{the}{\mathrm{q}}^{\mathrm{th}}\mathrm{term},\mathrm{find}(\mathrm{p}+\mathrm{q})\mathrm{th}\mathrm{term}\mathrm{of}\mathrm{the}\mathrm{A}.\mathrm{P}.$

^{2}. If the difference of their perimeters is 16 cm, find the sides of the two squares.26. Speed of a boat in still water is 15 km/h. It goes 30 km upstream and returns back at the same point in 4 hours 30 minutes. Find the speed of the steam.

26 question plz tell fast. Dont send link plz

Solve this:Q. x

^{2}- 4ax - b^{2}+ 4a^{2}= 0(This question is wrong; I think).

Q.42. A natural number when increased by 84 equals 160 times its reciprocal. Find the number.