332354 + Interview Questions in Secondary School in Math

1.	फाइंड द डिक्रिमेंट ऑफ द इक्वेशन 9 एक्स 2 - 16 इज इक्वल टू जीरो
Answer» ONG>ANSWER: V!hdjb?vzym so vulgfhmd?kfnsykyxhm

Discussion

2.	Please explain this and tell the answer
Answer» ONG>ANSWER: the VALUE of X in 125⁰ this answer

Discussion

3.	The pqrs is a parallelogram then find the value of x and y
Answer» ong>ANSWER: PARALLELOGRAM has its OPPOSITE SIDE are PARALLEL and its Angel are same

3.

The pqrs is a parallelogram then find the value of x and y

Answer»

ong>ANSWER:

PARALLELOGRAM has its OPPOSITE SIDE are PARALLEL and its Angel are same

Discussion

4.	સમીકરણx ને કેવી રીતે પ્રમાણિત સ્વરૂપેલખી શકાય.
Answer» ONG>Answer: સમીકરણx \frac{x}{2} - \frac{y}{3} 2 x − 3 y ને કેવી રીતે પ્રમાણિત સ્વરૂપે લખી શકાય.

4.

સમીકરણx ને કેવી રીતે પ્રમાણિત સ્વરૂપેલખી શકાય.

Answer» ONG>Answer:

સમીકરણx

\frac{x}{2} - \frac{y}{3}

2

x

−

3

y

ને કેવી રીતે પ્રમાણિત સ્વરૂપે

લખી શકાય.

Discussion

5.	find the zeroes of polynomial by Quadratic formula
Answer» ONG>Step-by-step explanation: $2(2a^2+5ab+2b^2)=4a^2+10ab+<klux>4B</klux>^2\\=(2a)^2+2a(5b)+4b^2\\$ So we NEED two numbers which add to 5b and multiply to 4b^2 Which are : 4b and b therefore: $2(2a^2+5ab+2b^2)=(2a)^2+2a(5b)+4b^2=(2a+4b)(2a+b)\\=>(2a^2+5ab+2b^2)=\frac{(2a+4b)(2a+b)}{2} =\frac{2(a+2b)(2a+b)}{2}=(a+2b)(2a+b)\\=-(a+2b)*-(2a+b)=(-a-2b)(-2a-b) \\therefore: 9x^2-9(a+b)+(2a^2+5ab+2b^2)\\\\=(3x)^2+(3x)(-3)(a+b)+ (-a-2b)(-2a-b)\\=(3x)^2+(3x)(-3a-3b)+ (-a-2b)(-2a-b)$ since (-a-2b) and (-2a-b) add up to (-3a-3b), we can factorize the polynomial like this: $(3x-a-2b)(3x-2a-b)=0=>\\3x = a+2b=>x=\frac{a+2b}{3} \\3x=2a+b=>x=\frac{2a+b}{3}$

5.

find the zeroes of polynomial by Quadratic formula

Answer» ONG>Step-by-step explanation:

$2(2a^2+5ab+2b^2)=4a^2+10ab+<klux>4B</klux>^2\\=(2a)^2+2a(5b)+4b^2\\$

So we NEED two numbers which add to 5b and multiply to 4b^2

Which are : 4b and b

therefore:

$2(2a^2+5ab+2b^2)=(2a)^2+2a(5b)+4b^2=(2a+4b)(2a+b)\\=>(2a^2+5ab+2b^2)=\frac{(2a+4b)(2a+b)}{2} =\frac{2(a+2b)(2a+b)}{2}=(a+2b)(2a+b)\\=-(a+2b)*-(2a+b)=(-a-2b)(-2a-b) \\therefore: 9x^2-9(a+b)+(2a^2+5ab+2b^2)\\\\=(3x)^2+(3x)(-3)(a+b)+ (-a-2b)(-2a-b)\\=(3x)^2+(3x)(-3a-3b)+ (-a-2b)(-2a-b)$

since (-a-2b) and (-2a-b) add up to (-3a-3b), we can factorize the polynomial like this:

$(3x-a-2b)(3x-2a-b)=0=>\\3x = a+2b=>x=\frac{a+2b}{3} \\3x=2a+b=>x=\frac{2a+b}{3}$

Discussion

6.	Find the area of circular part in the below figure which is shaded with orange colour where the radius of large circle is 21cm and radius of small circle is 7cm?
Answer» ONG>Answer : Error C-o-d-e : 4edd54d8ee2d PLEASE GIVE FULL Question Sister ! Never Mind About That Error C-o-d-e Ok ! Please MARK As Brainliest Answer ! : )

6.

Find the area of circular part in the below figure which is shaded with orange colour where the radius of large circle is 21cm and radius of small circle is 7cm?

Answer» ONG>Answer :

Error C-o-d-e : 4edd54d8ee2d

PLEASE GIVE FULL Question Sister !

Never Mind About That Error C-o-d-e Ok !

Please MARK As Brainliest Answer ! : )

Discussion

7.	For particular bank road it's radius is 100 meter and the angle is 45 then find most safe speed.
Answer» question: A circular road of radius 1000 m has banking angle 45 o . The maximum safe speed of a CAR having mass 2000 kg will be, if coefficient of FRICTION between TYRE and road is Answer 172m/s Explanation Given that: r=1000m,θ=45 0 ,μ=0.5,m=2000kg We know that maximum safe velocity for a banked is given by : v= 1−μtanθ rg(tanθ+μ) hence on PUTTING the given values, we get v= 1−0.5tan45 1000×9.8×(tan45+0.5) or v=172m/s hence option A is CORRECT

7.

For particular bank road it's radius is 100 meter and the angle is 45 then find most safe speed.

Answer»

question: A circular road of radius 1000 m has banking angle 45

o

. The maximum safe speed of a CAR having mass 2000 kg will be, if coefficient of FRICTION between TYRE and road is

Answer

172m/s

Explanation

Given that: r=1000m,θ=45

0

,μ=0.5,m=2000kg

We know that maximum safe velocity for a banked is given by :

v=

1−μtanθ

rg(tanθ+μ)

hence on PUTTING the given values, we get

v=

1−0.5tan45

1000×9.8×(tan45+0.5)

or v=172m/s

hence option A is CORRECT

Discussion

8.	What is the required conditions for A intersection B&B intersection C
Answer» ONG>Step-by-step EXPLANATION: jsjsjsjsjsjsjsjsjsjsjsjsjsjsjsjsjsjs U u

8.

What is the required conditions for A intersection B&B intersection C

Answer» ONG>Step-by-step EXPLANATION:

jsjsjsjsjsjsjsjsjsjsjsjsjsjsjsjsjsjs U u

Discussion

9.	1. Ratio of maximum capacity of water in two tanks A and B are 5 :3. If tank A can hold water up to 1575 litres, how much can the tank B hold?
Answer» ong>ANSWER: let tank B can HOLD X litres of water then 1575/x = 5/3 x = 945 litres

9.

1. Ratio of maximum capacity of water in two tanks A and B are 5 :3. If tank A can hold water up to 1575 litres, how much can the tank B hold?

Answer»

ong>ANSWER:

let tank B can HOLD X litres of water

then 1575/x = 5/3

x = 945 litres

Discussion

10.	Alternative Way of Solving Solve using substitutiton of . Or, you can use various methods.
Answer» strong>Concept :- Here the concept of Quadratic Equation has been used. We see that we are given an equation and we need to find it's roots. One way is given using hint. We can use it. If there's any problem in using that, we can simply solve this question as it is. The easiest method to do such questions is using Splitting the Middle Term. Here we shall look out at both steps that is using the hint given in qúestion and directly using the qúestion. Let's do it !! ______________________________________ ★ Solution :- Given, » 18x² + 21x - 49 = 0 • Method I :: In this method we shall assume the hint given in the qúestion. It's given that, → t = 3x Squaring both sides, we GET → t² = 9x² Then, → 18x² = 2t² → 21x = 7t Now we can apply this in the given equation. >> 2t² + 7t - 49 = 0 On splitting the middle term, we get >> 2t² + 14t - 7t - 49 = 0 >> 2t(t + 7) - 7(t + 7) = 0 On GROUPING, we get >> (2t - 7)(t + 7) = 0 Here either (2t - 7) = 0 or (t + 7) = 0. Then we get, >>> 2t - 7 = 0 or t + 7 = 0 >>> 2t = 7 or t = - 7 >>> t = 7/2 or t = -7 We know that, → t = 3x → x = t/3 Since we have two values of t, so we can apply them simultaneously and get, → x = 7/6 , -7/3 These are the roots of the given equation. $\;\;\underline{\boxed{\tt{Required\;\:Values\;=\;\bf{\purple{\dfrac{7}{6},\:\dfrac{-7}{3}}}}}}$ ______________________________________ • Method II :: In this method, we shall directly solve the equation using the Method of Splitting the Middle Term. » 18x² + 21X - 49 = 0 This can be written as, >> 18x² + 42x - 21x - 49 = 0 Now taking the terms in common, we get >> 6x(3x + 7) - 7(3x - 7) = 0 On grouping, we get >> (6x - 7)(3x + 7) = 0 Here either (6x - 7) = 0 or (3x + 7) = 0. So, >> 6x - 7 = 0 or 3x + 7 = 0 >> 6x = 7 or 3x = -7 >> x = 7/6 or x = -7/3 Clearly, this solution matches with the one we got above. So our answer is correct. $\;\;\underline{\boxed{\tt{Required\;\:Values\;=\;\bf{\green{\dfrac{7}{6},\:\dfrac{-7}{3}}}}}}$

10.

Alternative Way of Solving Solve using substitutiton of . Or, you can use various methods.

Answer»

strong>Concept :-

Here the concept of Quadratic Equation has been used. We see that we are given an equation and we need to find it's roots. One way is given using hint. We can use it. If there's any problem in using that, we can simply solve this question as it is. The easiest method to do such questions is using Splitting the Middle Term. Here we shall look out at both steps that is using the hint given in qúestion and directly using the qúestion.

Let's do it !!

______________________________________

★ Solution :-

Given,

» 18x² + 21x - 49 = 0

• Method I ::

In this method we shall assume the hint given in the qúestion. It's given that,

→ t = 3x

Squaring both sides, we GET

→ t² = 9x²

Then,

→ 18x² = 2t²

→ 21x = 7t

Now we can apply this in the given equation.

>> 2t² + 7t - 49 = 0

On splitting the middle term, we get

>> 2t² + 14t - 7t - 49 = 0

>> 2t(t + 7) - 7(t + 7) = 0

On GROUPING, we get

>> (2t - 7)(t + 7) = 0

Here either (2t - 7) = 0 or (t + 7) = 0.

Then we get,

>>> 2t - 7 = 0 or t + 7 = 0

>>> 2t = 7 or t = - 7

>>> t = 7/2 or t = -7

We know that,

→ t = 3x

→ x = t/3

Since we have two values of t, so we can apply them simultaneously and get,

→ x = 7/6 , -7/3

These are the roots of the given equation.

$\;\;\underline{\boxed{\tt{Required\;\:Values\;=\;\bf{\purple{\dfrac{7}{6},\:\dfrac{-7}{3}}}}}}$

______________________________________

• Method II ::

In this method, we shall directly solve the equation using the Method of Splitting the Middle Term.

» 18x² + 21X - 49 = 0

This can be written as,

>> 18x² + 42x - 21x - 49 = 0

Now taking the terms in common, we get

>> 6x(3x + 7) - 7(3x - 7) = 0

On grouping, we get

>> (6x - 7)(3x + 7) = 0

Here either (6x - 7) = 0 or (3x + 7) = 0. So,

>> 6x - 7 = 0 or 3x + 7 = 0

>> 6x = 7 or 3x = -7

>> x = 7/6 or x = -7/3

Clearly, this solution matches with the one we got above. So our answer is correct.

$\;\;\underline{\boxed{\tt{Required\;\:Values\;=\;\bf{\green{\dfrac{7}{6},\:\dfrac{-7}{3}}}}}}$

Discussion

11.	A wire can be bent in the form of a circle of radius 56 cm. If it is bent in the form of a square,then find the perimeter of the square.
Answer» ONG>Answer: answer is the 155 Step-by-step EXPLANATION: GIVE me brainlyest

11.

A wire can be bent in the form of a circle of radius 56 cm. If it is bent in the form of a square,then find the perimeter of the square.

Answer» ONG>Answer:

answer is the 155

Step-by-step EXPLANATION:

GIVE me brainlyest

Discussion

12.	Find the value of sin2 20 + sin2 70
Answer» ONG>Answer: 1 Step-by-step EXPLANATION: Sin^2 20 + sin^2 70 Sin^2 20 + sin^2 (90-20) sin^2 20 + cos^2 20 = 1

12.

Find the value of sin2 20 + sin2 70

Answer» ONG>Answer:

1

Step-by-step EXPLANATION:

Sin^2 20 + sin^2 70

Sin^2 20 + sin^2 (90-20)

sin^2 20 + cos^2 20 = 1

Discussion

13.	What will be the value of (_45+15)_(10)
Answer» ong>Step-by-step explanation: (-45 + 15) - 10 (-30) - 10 - 30 - 10 - 40

13.

What will be the value of (_45+15)_(10)

Answer»

ong>Step-by-step explanation:

(-45 + 15) - 10
(-30) - 10
- 30 - 10
- 40

Discussion

14.	1. Ratio of maximum capacity of water in two tanks A and B are 5 : 3. If tank A can hold water up to 1575 litres, how much can thetank B hold?
Answer» ONG>Answer: dude your QUESTION is WRONG or not full Step-by-step explanation: please check it and repost the question

14.

1. Ratio of maximum capacity of water in two tanks A and B are 5 : 3. If tank A can hold water up to 1575 litres, how much can thetank B hold?

Answer» ONG>Answer:

dude your QUESTION is WRONG or not full

Step-by-step explanation:

please check it and repost the question

Discussion

15.	What kind of quardrilateral is image f
Answer» ong>ANSWER: Step-by-step explanation: 1- RECTANGLE 2- PARALLELOGRAM 3- SQUARE 4- TRAPEZIUM 5- TRAPEZIUM 6- NOT SPECIFIC / SPECIAL TYPE OF QUADRAILATERAL 7- KITE 8- RHOMBUS

15.

What kind of quardrilateral is image f

Answer»

ong>ANSWER:

Step-by-step explanation:

1- RECTANGLE

2- PARALLELOGRAM

3- SQUARE

4- TRAPEZIUM

5- TRAPEZIUM

6- NOT SPECIFIC / SPECIAL TYPE OF QUADRAILATERAL

7- KITE

8- RHOMBUS

Discussion

16.	Solve this two problem
Answer» ONG>ANSWER: Y should I you don't have HAND?

Discussion

17.	A car travels a distance of d km in t hours. The formula that relates d to t is d = kt. What Kind of A. direct b. inverse c. joint d. combined
Answer» OINT REALLY this is RIGHT

Discussion

18.	Check whether (x-2) is a Factor of x3 - 2x2–5x + 4
Answer» ONG>ANSWER: SORRY but I don't KNOW the answer

Discussion

19.	Find the distance between the point Q[3, -7], R(3, 3)
Answer» ANSWER for the QUESTION is ATTACHED HEREWITH.

Discussion

20.	If the two angles of a triangle are 80° and 60° .find the third angle
Answer» ong>ANSWER: Follow i N s t a g r a m = niral161 Step-by-step explanation: → Mark as brainliest answer. → We KNOW that sum of all three angles of triangle is 180°. → Let the THIRD angle be X. → 80° + 60° + x =180 → 140° + x = 180 → x = 180 - 140 → x = 40° → The third angle is 40°.

20.

If the two angles of a triangle are 80° and 60° .find the third angle

Answer»

ong>ANSWER:

Follow i N s t a g r a m = niral161

Step-by-step explanation:

→ Mark as brainliest answer.

→ We KNOW that sum of all three angles of triangle is 180°.

→ Let the THIRD angle be X.

→ 80° + 60° + x =180

→ 140° + x = 180

→ x = 180 - 140

→ x = 40°

→ The third angle is 40°.

Discussion

21.	Square roots of 16.6 by 2
Answer» ONG>Step-by-step EXPLANATION: so the ROOT of √ (16.6/2) = √8.3 = 2.9 (AROUND)

21.

Square roots of 16.6 by 2

Answer» ONG>Step-by-step EXPLANATION:

so the ROOT of √ (16.6/2)

= √8.3

= 2.9 (AROUND)

Discussion

22.	Theratio4:25 converted topercentage87
Answer» ong>Answer:P> 348% Step-by-step explanation: A fraction consists of two numbers and a fraction bar: 87/25 The number above the bar is the numerator: 87 The number below the bar is the denominator: 25 Divide the numerator by the denominator to get fraction's value: VAL = 87 ÷ 25 'Percent (%)' means 'out of one hundred': p% = p 'out of one hundred', p% = p/100 = p ÷ 100. Calculate fraction's value. Divide the numerator by the denominator to get fraction's value: 87/25 = 87 ÷ 25 = 3.48 100/100 = 100 ÷ 100 = 100% = 1 MULTIPLY a number by the fraction 100/100, ... and its value doesn't change. 3.48 = 3.48 × 100/100 = (3.48 × 100)/100 = 348/100 = 348%;

22.

Theratio4:25 converted topercentage87

Answer»

ong>Answer:P>

348%

Step-by-step explanation:

A fraction consists of two numbers and a fraction bar:

87/25

The number above the bar is the numerator: 87

The number below the bar is the denominator: 25

Divide the numerator by the denominator to get fraction's value:

VAL = 87 ÷ 25

'Percent (%)' means 'out of one hundred':

p% = p 'out of one hundred',

p% = p/100 = p ÷ 100.

Calculate fraction's value.

Divide the numerator by the denominator to get fraction's value:

87/25 =

87 ÷ 25 =

3.48

100/100 = 100 ÷ 100 = 100% = 1

MULTIPLY a number by the fraction 100/100,

... and its value doesn't change.

3.48 =

3.48 × 100/100 =

(3.48 × 100)/100 =

348/100 =

348%;

Discussion

23.	Find the HCF of the following polynomials a³-ab² and a⁴+2a³b +a²b²
Answer» ONG>ANSWER: I am very SORRY but I don't KNOW this answer

23.

Find the HCF of the following polynomials a³-ab² and a⁴+2a³b +a²b²

Answer» ONG>ANSWER:

I am very SORRY but I don't KNOW this answer

Discussion

24.	Formula of are of right angled triangled
Answer» ong>Answer: Area of right angled triangle = ½ × BASE × HEIGHT

24.

Formula of are of right angled triangled

Answer»

ong>Answer:

Area of right angled triangle = ½ × BASE × HEIGHT

Discussion

25.	A couple got married 9 years ago when the age of wife was 20% less than her husband. 6 years from now the age of wife will be only 12.5% less than her husband. Now they have six children including single, twins and triplets and the ratio of their ages is 2:3:4 respectively. What can bethe maximum possible value for the present age of this family?
Answer» ong>ANSWER: ANS is ATTACHMENT CORRECT

25.

A couple got married 9 years ago when the age of wife was 20% less than her husband. 6 years from now the age of wife will be only 12.5% less than her husband. Now they have six children including single, twins and triplets and the ratio of their ages is 2:3:4 respectively. What can bethe maximum possible value for the present age of this family?

Answer»

ong>ANSWER:

ANS is ATTACHMENT CORRECT

Discussion

26.	SECTION: C Answer any SIX of the following questions as instructed. (Question no. 25 to 36) (Each 3 Marks) 37. Find the zeroes of the quadratic polynomial -12x2 + 13x and verify the relationship between the zeroes and the coefficients.
Answer» RONG>ANSWER: *I am very SORRY but I don't KNOW this answer*

Discussion

27.	Factorise :x^2+1/x^2+2-3x-3/x
Answer» ong>ANSWER: I hope this will help You Step-by-step EXPLANATION: PLEASE mark my answer as brainliest

27.

Factorise :x^2+1/x^2+2-3x-3/x

Answer»

ong>ANSWER:

I hope this will help You

Step-by-step EXPLANATION:

PLEASE mark my answer as brainliest

Discussion

28.	If 7 is added to two third of the square of positive number,the sum is 31 .find the number
Answer» ANSWER: Given: 7 is added to two-third of the SQUARE of positive number. Sum is 31 To Find: The number Assumption: Let the number be x Solution: We are given that, ⇒ (²/₃ * x²) + 7 = 31 Transposing 7 from LHS to RHS, ⇒ ²/₃ * x² = 31 - 7 ⇒ ²/₃ * x² = 24 Transposing ²/₃ from LHS to RHS, ⇒ x² = 24 * ³/₂ ⇒ x² = 12 * 3 ⇒ x² = 36 ⇒ x = ±6 But as ‘x’ is a positive number, ⇒ x = 6 Verification: → Square of the number ⇒ 6² = 36 → ²/₃ of the square of the number ⇒ ²/₃ * 36 = 2 * 12 = 24 → Add 7 to it. ⇒ 24 + 7 = 31 HENCE VERIFIED!!

28.

If 7 is added to two third of the square of positive number,the sum is 31 .find the number

Answer»

ANSWER:

Given:

7 is added to two-third of the SQUARE of positive number.

Sum is 31

To Find:

The number

Assumption:

Let the number be x

Solution:

We are given that,

⇒ (²/₃ * x²) + 7 = 31

Transposing 7 from LHS to RHS,

⇒ ²/₃ * x² = 31 - 7

⇒ ²/₃ * x² = 24

Transposing ²/₃ from LHS to RHS,

⇒ x² = 24 * ³/₂

⇒ x² = 12 * 3

⇒ x² = 36

⇒ x = ±6

But as ‘x’ is a positive number,

⇒ x = 6

Verification:

→ Square of the number

⇒ 6² = 36

→ ²/₃ of the square of the number

⇒ ²/₃ * 36 = 2 * 12 = 24

→ Add 7 to it.

⇒ 24 + 7 = 31

HENCE VERIFIED!!

Discussion

29.	Please explain how to solve please
Answer» SE REFER this attachment... I solved it just to explain you, you MAY write it in your own words if you want. Hope this HELPS you!! Radhe Radhe

29.

Please explain how to solve please

Answer» SE REFER this attachment...

I solved it just to explain you, you MAY write it in your own words if you want.

Hope this HELPS you!!

Radhe Radhe

Discussion

30.	1 bb+c b? +c?(ii) \|1 c+ac? +a?) = (a - b)(b - c)(c - a)1 a+b a² + b2ab?
Answer» ONG>Answer: 23565421098788766654

Discussion

31.	What is the compound interst on rs 200 for 1 years at 10% rate compounded half - years
Answer» ong>Answer:P> FIRST formula of compound INTEREST Step-by-step explanation: A = P(1+r/n)nt A = 200(1+1/0.10)1*1 A = 200(2/0.1.)1 A = 200(20)1 A = 200(20) A = 4000 ANS.

31.

What is the compound interst on rs 200 for 1 years at 10% rate compounded half - years

Answer»

ong>Answer:P>

FIRST formula of compound INTEREST

Step-by-step explanation:

A = P(1+r/n)nt

A = 200(1+1/0.10)1*1

A = 200(2/0.1.)1

A = 200(20)1

A = 200(20)

A = 4000 ANS.

Discussion

32.	(a) 6x2y, -7x2y, 8x2y
Answer» ong>Answer: 6x +7X -8X = -2y -2y -2y 5x = -6Y

32.

(a) 6x2y, -7x2y, 8x2y

Answer»

ong>Answer:

6x +7X -8X = -2y -2y -2y

5x = -6Y

Discussion

33.	7 centimetres 6 millimetres - 5 centimetres 9 millimetres =?
Answer» ONG>Answer: 0.009 metre Step-by-step EXPLANATION: plz make me as BRAINLIST

33.

7 centimetres 6 millimetres - 5 centimetres 9 millimetres =?

Answer» ONG>Answer:

0.009 metre

Step-by-step EXPLANATION:

plz make me as BRAINLIST

Discussion

34.	81 8.1.) Simplify , - ( ( (در + زرد ²
Answer» ONG>ANSWER: what is this ? I am not UNDERSTAND

Discussion

35.	Answer guys fast urgent no spams Find the cube root of 17576 through estimation
Answer» ONG>Step-by-step EXPLANATION: so your FINAL answer is 26 .

Discussion

36.	Write in decimal notation and add 1)45m 23cm 75mm answer correctly
Answer» ONG>Answer: 1) 45.23m 2) 23.75cm Step-by-step EXPLANATION: Step 1: REMOVE the units from the original NUMBER step 2 : Add a point after the first number Step 3: Add the biggest unit which is in the original number next to the number that comes after the decimal point

36.

Write in decimal notation and add 1)45m 23cm 75mm answer correctly

Answer» ONG>Answer:

1) 45.23m

2) 23.75cm

Step-by-step EXPLANATION:

Step 1: REMOVE the units from the original NUMBER

step 2 : Add a point after the first number

Step 3: Add the biggest unit which is in the original number next to the number that comes after the decimal point

Discussion

37.	Prove that√3is an irrational number.
Answer» RONG>To PROVE:- $\bf\implies √3 \: is \: irrational$ SOLUTION:- $\bf\implies By \: Contradiction\: Method$ $\bf\implies Assuming \: √3 is \: rational$ $\bf\implies √3=\frac{p}{q} \: [p \: and \: q \: are \: co-prime$ $\bf\implies p=√3q \: ..(1)$ $\bf\implies p²=3q²$ $\bf\implies \frac{p²}{3}=q²$ $\bf\implies p² \: divides \: 3$ $\bf\implies p \: also \: divides \: 3$ $\bf\implies p=3m \: [m \: is \: any \: integer]$ $\bf\implies √3q=3m$ $\bf\implies q=\frac{3m}{√3}$ $\bf\implies q=√3m$ $\bf\implies q²=3m²$ $\bf\implies \frac{q²}{3}=m²$ $\bf\implies q² \: divides\: 3$ $\bf\implies q \: divides \: 3$ $\bf\implies p \: divides \: 3$ $\bf\implies q \: also \: divides \: 3$ $\bf\implies But \: p \: and \: q \: are \: co-primes$ $\bf\implies This \: is \: because \: of \: our \: wrong \: assumption$ $\bf\implies √3 \: is \: irrational$

37.

Prove that√3is an irrational number.

Answer» RONG>To PROVE:-

$\bf\implies √3 \: is \: irrational$

SOLUTION:-

$\bf\implies By \: Contradiction\: Method$

$\bf\implies Assuming \: √3 is \: rational$

$\bf\implies √3=\frac{p}{q} \: [p \: and \: q \: are \: co-prime$

$\bf\implies p=√3q \: ..(1)$

$\bf\implies p²=3q²$

$\bf\implies \frac{p²}{3}=q²$

$\bf\implies p² \: divides \: 3$

$\bf\implies p \: also \: divides \: 3$

$\bf\implies p=3m \: [m \: is \: any \: integer]$

$\bf\implies √3q=3m$

$\bf\implies q=\frac{3m}{√3}$

$\bf\implies q=√3m$

$\bf\implies q²=3m²$

$\bf\implies \frac{q²}{3}=m²$

$\bf\implies q² \: divides\: 3$

$\bf\implies q \: divides \: 3$

$\bf\implies p \: divides \: 3$

$\bf\implies q \: also \: divides \: 3$

$\bf\implies But \: p \: and \: q \: are \: co-primes$

$\bf\implies This \: is \: because \: of \: our \: wrong \: assumption$

$\bf\implies √3 \: is \: irrational$

Discussion

38.	14. 5000 रू. पर 8% वार्षिक ब्याज की दर से 11 वर्ष के अर्द्धवार्षिक रूप से संयोजित तथा वार्षिक रूप मेंसंयोजित ब्याज वाले चक्रवृद्धि ब्याजों का अन्तरहोगा?(1)8.16रू(2)8रू(3)4.8 रू.(4)4रू. ssc challenge
Answer» sfmbadjdjdjjfdjdhsydhdhdu

Discussion

39.	State with reason whether the equation 3x²-7x=13x is quadratic equation
Answer» ong>Answer: 6.67 Step-by-step explanation: 3x²-7x= 13x 3x²= 13x+7x 3x²= 20x (CANCEL the X of both SIDE) 3x= 20 x= 20÷3 x= 6.67

39.

State with reason whether the equation 3x²-7x=13x is quadratic equation

Answer»

ong>Answer:

6.67

Step-by-step explanation:

3x²-7x= 13x

3x²= 13x+7x

3x²= 20x (CANCEL the X of both SIDE)

3x= 20

x= 20÷3

x= 6.67

Discussion

40.	5) Write the distances of these points from the (iii) (0,5)x-axis.(i) (-2, 1)(ii) (9,8)(iv) (-6, -6)(v) (-3,0)6) Write the distances of these points from they-axis.(i) (-1, 1)(ii) (9,5)(iv) (0,-6) (v) (-2,9)(iii) (2,0)
Answer» ong>Answer: iii) (0,5) x-axis. (i) (-2, 1) (ii) (9,8) (IV) (-6, -6) (v) (-3,0) 6) Write the distances of these points from the y-axis. (i) (-1, 1) (ii) (9,5) (iv) (0,-6) (v) (-2,9) (iii) (2,0)

40.

5) Write the distances of these points from the (iii) (0,5)x-axis.(i) (-2, 1)(ii) (9,8)(iv) (-6, -6)(v) (-3,0)6) Write the distances of these points from they-axis.(i) (-1, 1)(ii) (9,5)(iv) (0,-6) (v) (-2,9)(iii) (2,0)

Answer»

ong>Answer:

iii) (0,5)

x-axis.

(i) (-2, 1)

(ii) (9,8)

(IV) (-6, -6)

(v) (-3,0)

6) Write the distances of these points from the

y-axis.

(i) (-1, 1)

(ii) (9,5)

(iv) (0,-6) (v) (-2,9)

(iii) (2,0)

Discussion

41.	Express as a in metres:10 m 8 dm 6 cm 5 mm
Answer» JAN NA na na KA na na .Ka AKA Ka aka aka AK

Discussion

42.	The folowing figure shows a circle O . if OP is perpendicular to AB
Answer» ong>Step-by-step explanation: PLS ATTACH a picture of the figure so that we can ANSWER your QUESTION thank you !.

42.

The folowing figure shows a circle O . if OP is perpendicular to AB

Answer»

ong>Step-by-step explanation:

PLS ATTACH a picture of the figure so that we can ANSWER your QUESTION

thank you !.

Discussion

43.	The roots a and B of the quadratic equation 2 -5x + 3(k-1) = 0 are such that a - B = 1. Find the value k
Answer» ONG>Step-by-step EXPLANATION: -11/12 is the VALUE of K hitvhhgbbbbhj

Discussion

44.	Find complementary angle of 35°
Answer» ong>ANSWER: We know that, SUM of any two angles equal to 90° is CALLED complementary angles. One angle = 35° Let the second angle = X. 35° + x = 90° => x = 90° - 35° => x = 55° Complementary angle of 35° is 55° ꧁Hope its help you•••♪

44.

Find complementary angle of 35°

Answer»

ong>ANSWER:

We know that,

SUM of any two angles equal to 90° is CALLED complementary angles.
One angle = 35°
Let the second angle = X.
35° + x = 90°
=> x = 90° - 35°
=> x = 55°
Complementary angle of 35° is 55°

꧁Hope its help you•••♪

Discussion

45.	If x and y are in different proposition when then which of the following is correct A. x-y= constantB. x+y= constantc. x/y= constantD. xy= constant
Answer» ong>ANSWER: D. XY= constant is the correct answer

45.

If x and y are in different proposition when then which of the following is correct A. x-y= constantB. x+y= constantc. x/y= constantD. xy= constant

Answer»

ong>ANSWER:

D. XY= constant is the correct answer

Discussion

46.	Solve the quadratic equation by completing the square.2x² - 20x + 48 = 02x²−20x+48=0
Answer» ONG>ANSWER: 2X Step-by-step EXPLANATION:

46.

Solve the quadratic equation by completing the square.2x² - 20x + 48 = 02x²−20x+48=0

Answer» ONG>ANSWER: 2X

Step-by-step EXPLANATION:

Discussion

47.	1:12 PM .-0.1kels /Assessmentनिचे दिखाई गई आकृति में वृत का कौन सा भाग दिखायाTOT ? Which part of the circle is shown in thefigure shown belowव्यास Diameterजीवा Chordsectorsegment of a circle
Answer» ong>Answer: segment of a CIRCLE because circle is WHOLE ROUND

47.

1:12 PM .-0.1kels /Assessmentनिचे दिखाई गई आकृति में वृत का कौन सा भाग दिखायाTOT ? Which part of the circle is shown in thefigure shown belowव्यास Diameterजीवा Chordsectorsegment of a circle

Answer»

ong>Answer:

segment of a CIRCLE because circle is WHOLE ROUND

Discussion

48.	two circles are given such that one is completely lying inside the other without touching. Find the locus of centre of a variable circle which touches the smaller circle from outside and the bigger circle from inside
Answer» rong>Two circles are given such that ONE is completely lying inside the other without touching. Find the locus of centre of a variable circle which TOUCHES the smaller circle from outside and the BIGGER circle from inside is *Ellipse.*

Discussion

49.	If line segment AB is divided at point C, what is the length of segment AC
Answer» ong>Answer: Answer: STEPS of construction: 1)Draw a LINE segment AB=4.9 cm. 2)Draw any ray making an acute angleangleBAXangleBAX at A3 intersecting AB at C. The point C so obtained is the required point, which divides AB INTERNALLY in the RATIO 3:4. Step-by-step explanation: HOPE you like

49.

If line segment AB is divided at point C, what is the length of segment AC

Answer»

ong>Answer:

Answer:

STEPS of construction:

1)Draw a LINE segment AB=4.9 cm.

2)Draw any ray making an acute angleangleBAXangleBAX at A3 intersecting AB at C.

The point C so obtained is the required point, which divides AB INTERNALLY in the RATIO 3:4.

Step-by-step explanation:

HOPE you like

Discussion

50.	Sove for xx+3x-21-Xx=17/4
Answer» ONG>ANSWER: LET x be x Step-by-step explanation: Then,by solving it we will get the answer

50.

Sove for xx+3x-21-Xx=17/4

Answer» ONG>ANSWER:

LET x be x

Step-by-step explanation:

Then,by solving it we will get the answer

Discussion

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