332354 + Interview Questions in Secondary School in Math

1.	• cost of production per unit=rs 150 and amount of opening stock of finished goods =86,250 calculate per unit cost.
Answer» ong>Answer: The answer is 575. HOPE it HELPED ypu.

1.

• cost of production per unit=rs 150 and amount of opening stock of finished goods =86,250 calculate per unit cost.

Answer»

ong>Answer:

The answer is 575. HOPE it HELPED ypu.

Discussion

2.	A = {12,13,14,15,16} B = {11, 15,17,18}C = {18, 19, 20, 21, 12}with venn diagram please(A U B) ∩ C = {18}(A ∩ B) ∩ C = {}(A ∩ C) ∩ B = {}(A U C) - B(A - C) ∩ B`
Answer» ong>ANSWER: you are in 9TH STANDARD according to me I will surely solve and SEND you today

2.

A = {12,13,14,15,16} B = {11, 15,17,18}C = {18, 19, 20, 21, 12}with venn diagram please(A U B) ∩ C = {18}(A ∩ B) ∩ C = {}(A ∩ C) ∩ B = {}(A U C) - B(A - C) ∩ B`

Answer»

ong>ANSWER:

you are in 9TH STANDARD according to me I will surely solve and SEND you today

Discussion

3.	Find the least number which when divided by 24 16 20 leaves remainder 20 12 16 respectively
Answer» ong>ANSWER: HOPE it is helpful for you... MARK me as BRAINLIEST ☺️

3.

Find the least number which when divided by 24 16 20 leaves remainder 20 12 16 respectively

Answer»

ong>ANSWER:

HOPE it is helpful for you...

MARK me as BRAINLIEST ☺️

Discussion

4.	2. Which of the following is true?(a) 15:40 :: 10:30(b) 16:48::25:75
Answer» ONG>ANSWER: a) 15:40::10:30 is the TRUE

4.

2. Which of the following is true?(a) 15:40 :: 10:30(b) 16:48::25:75

Answer» ONG>ANSWER:

a) 15:40::10:30

is the TRUE

Discussion

5.	State the number of lines of symmetry for the following figure. [03](i)Semicircle diagram
Answer» ong>ANSWER: State the number of lines of symmetry for the following figure. Ans - The number of lines of symmetry for the following figure is : i) SEMICIRCLE - 1 symmetry LINE needed . Step-by-step explanation: Mark me BRAINLIEST.

5.

State the number of lines of symmetry for the following figure. [03](i)Semicircle diagram

Answer»

ong>ANSWER:

State the number of lines of symmetry for the following figure.

Ans - The number of lines of symmetry for the following figure is :

i) SEMICIRCLE - 1 symmetry LINE needed .

Step-by-step explanation:

Mark me BRAINLIEST.

Discussion

6.	Whatthe full form ICM
Answer» ong>ANSWER: ICM – information classification and management Step-by-step explanation: here is your answer.

6.

Whatthe full form ICM

Answer»

ong>ANSWER:

ICM – information classification and management

Step-by-step explanation:

here is your answer.

Discussion

7.	The circumference of circular table 88cm. Find the radius.
Answer» radius is 14 Step-by-step EXPLANATION: GIVEN CIRCUMFERENCE of table = 88cm formula is 2πr

7.

The circumference of circular table 88cm. Find the radius.

Answer»

radius is 14

Step-by-step EXPLANATION:

GIVEN

CIRCUMFERENCE of table = 88cm

formula is 2πr

Discussion

8.	10. Write the coefficient of x in the expansion of (2x + 3y) (2x - 3y)
Answer» ONG>Answer: 2x Step-by-step EXPLANATION: (2x+3y)(2x-3y) 2x²-3y² 2x×x-3y²

8.

10. Write the coefficient of x in the expansion of (2x + 3y) (2x - 3y)

Answer» ONG>Answer:

2x

Step-by-step EXPLANATION:

(2x+3y)(2x-3y)

2x²-3y²

2x×x-3y²

Discussion

9.	Solve the following equations by using Cramer's Rule -x+2x^2=-4
Answer» ONG>ANSWER: 23 is the CORRECT answer please set me Brainlist

9.

Solve the following equations by using Cramer's Rule -x+2x^2=-4

Answer» ONG>ANSWER:

23 is the CORRECT answer

please set me Brainlist

Discussion

10.	A. find the pedal equation of parabola y²=4a(x+a)
Answer» ong>ANSWER: Answer: First term = 1 Common difference = 6 Given statements about the terms of an AP: 9th term = 7 × 2nd Term 9th term = 7 × 2nd Term12th term = 5 × 3rd term + 2 We have to find the following: First term, a Common difference, d The standard form of an AP is: a , a + d, a + 2d , a + 3d, ... , a + (n - 1)d Where, a = first term of AP d = common difference of AP So, According to the formula, aₙ = a + (n - 1)d We have 9th term and 2nd term as a + 8d and a + d respectively. So According to the statement given, ⇒ 9th term = 7 × 2nd term ⇒ a + 8d = 7 (a + d) ⇒ a + 8d = 7a + 7d ⇒ 7a - a + 7d - 8d = 0 ⇒ 6a - d = 0 ...(i) Similarly, According to the second statement, we have ⇒ 12th term = ( 5 × 3rd term ) + 2 ⇒ a + 11d = { 5(a + 2d) } + 2 ⇒ a + 11d = 5a + 10d + 2 ⇒ 5a - a + 10d - 11d = -2 ⇒ 4a - d = -2 ...(ii) Subtract eq.(ii) from eq.(i), we get ⇒ 6a - d - (4a - d) = 0 - (-2) ⇒ 6a - d - 4a + d = 2 ⇒ 6a - 4a = 2 ⇒ 2A = 2 ⇒ a = 1 We found the first term to be 1, Hence substitute the value of a in eq.(i), we get ⇒ 6a - d = 0 ⇒ 6(1) - d = 0 ⇒ 6 - d = 0 ⇒ d = 6

10.

A. find the pedal equation of parabola y²=4a(x+a)

Answer»

ong>ANSWER:

Answer:

First term = 1

Common difference = 6

Given statements about the terms of an AP:

9th term = 7 × 2nd Term

9th term = 7 × 2nd Term12th term = 5 × 3rd term + 2

We have to find the following:

First term, a

Common difference, d

The standard form of an AP is:

a , a + d, a + 2d , a + 3d, ... , a + (n - 1)d

Where,

a = first term of AP

d = common difference of AP

So, According to the formula,

aₙ = a + (n - 1)d

We have 9th term and 2nd term as a + 8d and a + d respectively. So According to the statement given,

⇒ 9th term = 7 × 2nd term

⇒ a + 8d = 7 (a + d)

⇒ a + 8d = 7a + 7d

⇒ 7a - a + 7d - 8d = 0

⇒ 6a - d = 0 ...(i)

Similarly, According to the second statement, we have

⇒ 12th term = ( 5 × 3rd term ) + 2

⇒ a + 11d = { 5(a + 2d) } + 2

⇒ a + 11d = 5a + 10d + 2

⇒ 5a - a + 10d - 11d = -2

⇒ 4a - d = -2 ...(ii)

Subtract eq.(ii) from eq.(i), we get

⇒ 6a - d - (4a - d) = 0 - (-2)

⇒ 6a - d - 4a + d = 2

⇒ 6a - 4a = 2

⇒ 2A = 2

⇒ a = 1

We found the first term to be 1, Hence substitute the value of a in eq.(i), we get

⇒ 6a - d = 0

⇒ 6(1) - d = 0

⇒ 6 - d = 0

⇒ d = 6

Discussion

11.	Please batado boht important hplease tell the answet it's very important please
Answer» ONG>ANSWER: MEAN is 65 Step-by-step EXPLANATION:

11.

Please batado boht important hplease tell the answet it's very important please

Answer» ONG>ANSWER:

MEAN is 65

Step-by-step EXPLANATION:

Discussion

12.	पर्यायात दिलेल्या अपूर्णांकांपैकी तुलनेने मोठा अपूर्णांक कोणता? 1️⃣ १/५2️⃣ १/८3️⃣ १/६4️⃣ १/९
Answer» ong>Question :- Which of the following fractions is a relatively large fraction ? 1) 1/5 2) 1/8 3) 1/6 4) 1/9 Solution :- → 1/5, 1/8, 1/6 , 1/9 taking LCM of denominators we get, → 5 = 5 * 1 → 8 = 2³ → 6 = 2 * 3 → 9 = 3² LCM = 5 * 2³ * 3² = 360 now, MAKING denominators of all same by MULTIPLY and divide by same numbers we get, → {(1/5) * (72/72)} , {(1/8) * (45/45)} , {(1/6) * (60/60)} , {(1/9) * (40/40)} → (72/360) , (45/360), (60/360) , (40/360) as we can see that, 72 > 60 > 45 > 40 . therefore, 1/5 > 1/6 > 1/8 > 1/9 . Hence, OPTION (1) 1/5 is the largest fraction among them . Learn more :- Decide the orderly relationship between 5/4 & 11/12 . 1️⃣ 5/4 > 11/12 2️⃣ 5/4 < 11/12 3️⃣ 5/4 = 11/12 brainly.in/question/37833730?utm_source=android&utm_medium=share&utm_campaign=question

12.

पर्यायात दिलेल्या अपूर्णांकांपैकी तुलनेने मोठा अपूर्णांक कोणता? 1️⃣ १/५2️⃣ १/८3️⃣ १/६4️⃣ १/९

Answer»

ong>Question :- Which of the following fractions is a relatively large fraction ?

1) 1/5

2) 1/8

3) 1/6

4) 1/9

Solution :-

→ 1/5, 1/8, 1/6 , 1/9

taking LCM of denominators we get,

→ 5 = 5 * 1

→ 8 = 2³

→ 6 = 2 * 3

→ 9 = 3²

LCM = 5 * 2³ * 3² = 360

now, MAKING denominators of all same by MULTIPLY and divide by same numbers we get,

→ {(1/5) * (72/72)} , {(1/8) * (45/45)} , {(1/6) * (60/60)} , {(1/9) * (40/40)}

→ (72/360) , (45/360), (60/360) , (40/360)

as we can see that,

72 > 60 > 45 > 40 .

therefore,

1/5 > 1/6 > 1/8 > 1/9 .

Hence, OPTION (1) 1/5 is the largest fraction among them .

Learn more :-

*Decide the orderly relationship between 5/4 & 11/12 .*

1️⃣ 5/4 > 11/12

2️⃣ 5/4 < 11/12

3️⃣ 5/4 = 11/12

brainly.in/question/37833730?utm_source=android&utm_medium=share&utm_campaign=question

Discussion

13.	Factorise 14 pq - 35pqr
Answer» ONG>ANSWER: 8 is the CORRECT answer OK

Discussion

14.	prove that Sin A + Cos A upon Sin A minus Cos A + Sin A minus Cos A upon sin a + Cos A = to 2 upon 1 minus cot square A
Answer» ONG>ANSWER: your answer is above Step-by-step explanation: hope this will help you please MARK it as the BRAINLIEST

14.

prove that Sin A + Cos A upon Sin A minus Cos A + Sin A minus Cos A upon sin a + Cos A = to 2 upon 1 minus cot square A

Answer» ONG>ANSWER:

your answer is above

Step-by-step explanation:

hope this will help you

please MARK it as the BRAINLIEST

Discussion

15.	The diameter of a wheel of a bicycle is 70cm. How far will you move in 24 turns of the wheel
Answer» ONG>Answer: $\huge\fbox\green{Question}$ The diameter of a wheel of a bicycle is 70cm. How FAR will you move in 24 TURNS of the wheel $\huge\fbox\blue{Answer}$ Given, $diameter = 70cm \\ circumference = 2\pi \: r \\ = > 70\pi \\ 1 \: revolution = circumference \\ 24 \: revolution = 24 \times 70\pi \\ = > 24 \times 70 \times \frac{22}{7} \\ = > 5280cm \\$ $\huge\fbox\red{Thankyou}$

15.

The diameter of a wheel of a bicycle is 70cm. How far will you move in 24 turns of the wheel

Answer» ONG>Answer:

$\huge\fbox\green{Question}$

The diameter of a wheel of a bicycle is 70cm. How FAR will you move in 24 TURNS of the wheel

$\huge\fbox\blue{Answer}$

Given,

$diameter = 70cm \\ circumference = 2\pi \: r \\ = > 70\pi \\ 1 \: revolution = circumference \\ 24 \: revolution = 24 \times 70\pi \\ = > 24 \times 70 \times \frac{22}{7} \\ = > 5280cm \\$

$\huge\fbox\red{Thankyou}$

Discussion

16.	If a = 2,b=-11, c= 15 , find the value of b²-4ac.
Answer» ONG>Answer: 1 IS *THE* *VALUE* OF *THIS* *EQUATION*

Discussion

17.	Find out the smallest and the largest fraction from the following: 1/6,2/7,3/5,2/9
Answer» ong>Answer: SMALLEST fraction is 2/9 and LARGEST fraction is 3/5 Step-by-step explanation:

17.

Find out the smallest and the largest fraction from the following: 1/6,2/7,3/5,2/9

Answer»

ong>Answer:

SMALLEST fraction is 2/9 and LARGEST fraction is 3/5

Step-by-step explanation:

Discussion

18.	let AB a line and P be a point not on AB. through P,draw a line ST parallel to AB now join P to any point Q
Answer» ONG>ANSWER: Let AB be a line and P be a point not on AB. Through P, draw a line ST parallel to AB. Now join P to any point Q on AB. Choose any other point R on ST. Through R, draw a line parallel to PQ.Let AB be a line and P be a point not on AB. Through P, draw a line ST parallel to AB. Now join P to any point Q on AB. Choose any other point R on ST. Through R, draw a line parallel to PQ. Step-by-step EXPLANATION:

18.

let AB a line and P be a point not on AB. through P,draw a line ST parallel to AB now join P to any point Q

Answer» ONG>ANSWER:

Let

AB

be

a

line

and

P

be

a

point

not

on

AB.

Through

P,

draw

a

line

ST

parallel

to

AB.

Now

join

P

to

any

point

Q

on

AB.

Choose

any

other

point

R

on

ST.

Through

R,

draw

a

line

parallel

to

PQ.Let

AB

be

a

line

and

P

be

a

point

not

on

AB.

Through

P,

draw

a

line

ST

parallel

to

AB.

Now

join

P

to

any

point

Q

on

AB.

Choose

any

other

point

R

on

ST.

Through

R,

draw

a

line

parallel

to

PQ.

Step-by-step EXPLANATION:

Discussion

19.	If f(1 )= -1, f'(1)=2, g(1)=1 and g' (1)= -2, then F'(1)= ----------ifF(x)=f(x). g(x)
Answer» ONG>ANSWER: 23 is the correct answer please SET me Brainlist

19.

If f(1 )= -1, f'(1)=2, g(1)=1 and g' (1)= -2, then F'(1)= ----------ifF(x)=f(x). g(x)

Answer» ONG>ANSWER:

23 is the correct answer

please SET me Brainlist

Discussion

20.	A stone is thrown into a lake. Suppose the ripple of the stone form a conic section given by the equation 42+42−12−4−10=0. Identify the conic section formed and write it in standard form.
Answer» is the ANSWERS I don't no

Discussion

21.	Write T for true and F for false statements 1. All squares are tropeziums.2. A perfect cube does not end with two zeros.3. The numerical cofficent of the term - 6 xaya is - 6.4. A nonagon has 9 sides.5. X=1
Answer» ONG>ANSWER: Step-by-step EXPLANATION:

21.

Write T for true and F for false statements 1. All squares are tropeziums.2. A perfect cube does not end with two zeros.3. The numerical cofficent of the term - 6 xaya is - 6.4. A nonagon has 9 sides.5. X=1

Answer» ONG>ANSWER:

Step-by-step EXPLANATION:

Discussion

22.	खाडी परीसंस्था ही सागरी परीसंस्थेपेक्षा वेगळी कशी आहे माहीती घ्या
Answer» CORRECT answer Hope it's HELPFUL ✌️✌️ $\huge\color{red}\boxed{\colorbox{black}{please\:mark\:me\: brilliance}}$ $\huge\underline\purple{\underline {Follow\:Me}}$

22.

खाडी परीसंस्था ही सागरी परीसंस्थेपेक्षा वेगळी कशी आहे माहीती घ्या

Answer» CORRECT answer

Hope it's HELPFUL ✌️✌️

$\huge\color{red}\boxed{\colorbox{black}{please\:mark\:me\: brilliance}}$

$\huge\underline\purple{\underline {Follow\:Me}}$

Discussion

23.	Write an equation in the form of ax + by +c= 0 ando indicate theof a, b, c in case of-2x=3y
Answer» ONG>Answer: -2a-3b+0c=0 Step-by-step explanation: this is equation, to CHANGE the SYMBOL MULTIPLY with - , then the equation becomes 2a+3b=0

23.

Write an equation in the form of ax + by +c= 0 ando indicate theof a, b, c in case of-2x=3y

Answer» ONG>Answer:

-2a-3b+0c=0

Step-by-step explanation:

this is equation, to CHANGE the SYMBOL MULTIPLY with - , then the equation becomes 2a+3b=0

Discussion

24.	What is the maximum value of (sin 0 + cos 0) ?
Answer» ONG>ANSWER: 23 is the correct answer please SET me Brainlist

24.

What is the maximum value of (sin 0 + cos 0) ?

Answer» ONG>ANSWER:

23 is the correct answer

please SET me Brainlist

Discussion

25.	State the number of lines of symmetry for the following figure. [03](i)Semicircle
Answer» ONG>Answer: 1 Step-by-step explanation: A semicircle has only ONE line of SYMMETRY

25.

State the number of lines of symmetry for the following figure. [03](i)Semicircle

Answer» ONG>Answer:

1

Step-by-step explanation:

A semicircle has only ONE line of SYMMETRY

Discussion

26.	What is the area of the carpet if its lengthis 3m and breadth is 2 m long?
Answer» ONG>Step-by-step EXPLANATION: area of CARPET : length × BREADTH = 3m× 2m = 6 m

26.

What is the area of the carpet if its lengthis 3m and breadth is 2 m long?

Answer» ONG>Step-by-step EXPLANATION:

area of CARPET : length × BREADTH

= 3m× 2m

= 6 m

Discussion

27.	Prove that √7 is an irrational number. Hence show that 7 + 2√7 is also an irrational Number
Answer» ong>Answer: MAY this is HELP FULL , ANS is above in the picture make as brainlist ans

27.

Prove that √7 is an irrational number. Hence show that 7 + 2√7 is also an irrational Number

Answer»

ong>Answer:

MAY this is HELP FULL , ANS is above in the picture

make as brainlist ans

Discussion

28.	Give the standard equation of hyperbola with foci (±7,0) and horizontal transverse axis of length 10units.
Answer» ER : length of TRANSVERSE axis = 2a = 10 Or, a= 5 foci of GIVEN hyperbola is c Or, c=7 we know, c²= a²+b² 7² = 5²+b² 49= 25+b² b² = 24 equation of hyperbola, x²/a² - y²/b²= 1 x²/25 -y²/24=1 24x² - 25y² = 600

28.

Give the standard equation of hyperbola with foci (±7,0) and horizontal transverse axis of length 10units.

Answer» ER :

length of TRANSVERSE axis = 2a = 10

Or, a= 5

foci of GIVEN hyperbola is c

Or, c=7

we know, c²= a²+b²

7² = 5²+b²

49= 25+b²

b² = 24

equation of hyperbola, x²/a² - y²/b²= 1

x²/25 -y²/24=1

24x² - 25y² = 600

Discussion

29.	Evaluate (5m+2)² solve in full answer
Answer» ONG>ANSWER: $( {(5m + 2)}^{2} ) \\ = {(5m)}^{2} + {2}^{2} + 2 \times 5m \times 2 \\ = 25 {m}^{2} + 4 + 20m \\ 25 {m}^{2} + 20m + 4$

29.

Evaluate (5m+2)² solve in full answer

Answer» ONG>ANSWER:

$( {(5m + 2)}^{2} ) \\ = {(5m)}^{2} + {2}^{2} + 2 \times 5m \times 2 \\ = 25 {m}^{2} + 4 + 20m \\ 25 {m}^{2} + 20m + 4$

Discussion

30.	I need solution for the above image
Answer» ong>ANSWER: answer BTAYE HUMKO nhi malum

30.

I need solution for the above image

Answer»

ong>ANSWER:

answer BTAYE HUMKO nhi malum

Discussion

31.	(17) How much tin will require to make a pipe of length 12 cm and radius 7 cm. ?(1) 1848 cm(2) 528 sq. cm.(3) 1848 sq. cm.(4) 528 cm
Answer» ONG>Step-by-step explanation: hope HELP full to you PLEASE MAKE me bralinist

Discussion

32.	3. Verify that [-(-x)] = x for each of the following.2.(a) x = -5/3
Answer» ONG>ANSWER: hjbjbjbjbjbkb7777777777777 7777777777777 ijvkjjvohi gguh jbj

32.

3. Verify that [-(-x)] = x for each of the following.2.(a) x = -5/3

Answer» ONG>ANSWER:

hjbjbjbjbjbkb7777777777777 7777777777777 ijvkjjvohi

gguh

jbj

Discussion

33.	भावना सिक्योरिटी 30 मार्च ऑफ 9 एंड 10 क्लास सेवंथ ऑफ टू परफॉर्म एंड पेटर्न
Answer» ong>ANSWER: @#$( SAHIL SINGH )$#@ Step-by-step explanation: @#$( SAHIL SINGH )$#@

33.

भावना सिक्योरिटी 30 मार्च ऑफ 9 एंड 10 क्लास सेवंथ ऑफ टू परफॉर्म एंड पेटर्न

Answer»

ong>ANSWER:

@#$( SAHIL SINGH )$#@

Step-by-step explanation:

@#$( SAHIL SINGH )$#@

Discussion

34.	If sin A = 3 /5then the value of cosA is
Answer» ONG>ANSWER: $\cos(a = 4 \div 5)$

34.

If sin A = 3 /5then the value of cosA is

Answer» ONG>ANSWER:

$\cos(a = 4 \div 5)$

Discussion

35.	If tan x = 4/3 find sin2x
Answer» ong>ANSWER: 2x will be 1/0 Step-by-step EXPLANATION: OK bye byebye heyebyeebeteye

35.

If tan x = 4/3 find sin2x

Answer»

ong>ANSWER:

2x will be 1/0

Step-by-step EXPLANATION:

OK bye byebye heyebyeebeteye

Discussion

36.	3 Solve any four subquestions from the following: 1. write two solutions of the equation 2x - y = 1
Answer» ONG>ANSWER: 1. y = 2x-1 2. X = 1÷2 + y this is the answer

36.

3 Solve any four subquestions from the following: 1. write two solutions of the equation 2x - y = 1

Answer» ONG>ANSWER:

1. y = 2x-1

2. X = 1÷2 + y

this is the answer

Discussion

37.	Find the standard equation of hyperbola with vertices (0,±5). and horizontal conjugate axis of length 6units
Answer» ONG>Step-by-step EXPLANATION: vertices are GIVEN. i. e, a=5 is given length of conjugate axis = 2B =6 b=3 equation of hyperbola is, y²/a² - x²/b²= 1 y²/25 - x²/9 = 1 Or, 9y² - 25x² =225

37.

Find the standard equation of hyperbola with vertices (0,±5). and horizontal conjugate axis of length 6units

Answer» ONG>Step-by-step EXPLANATION:

vertices are GIVEN. i. e, a=5 is given

length of conjugate axis = 2B =6

b=3

equation of hyperbola is,

y²/a² - x²/b²= 1

y²/25 - x²/9 = 1

Or, 9y² - 25x² =225

Discussion

38.	In. Write True or false for the following: (Do any elght) a) O is a natural numberTb) Three times of a number is 3x.c) Line segment has one end.d) There is one diameter in circle.e) All quadrilateral has 4 sides.f) The perimeter of triangle of is sum of its all sides.g) Pictograph contain circle..h) Area of square is 4a.i) . 2x+3=7 is an algebraic equation
Answer» ong>Answer: (a) True (b) True (C) false (d) True (E) True (F) True (g) False (h) false (i) false

38.

In. Write True or false for the following: (Do any elght) a) O is a natural numberTb) Three times of a number is 3x.c) Line segment has one end.d) There is one diameter in circle.e) All quadrilateral has 4 sides.f) The perimeter of triangle of is sum of its all sides.g) Pictograph contain circle..h) Area of square is 4a.i) . 2x+3=7 is an algebraic equation

Answer»

ong>Answer:

(a) True

(b) True

(C) false

(d) True

(E) True

(F) True

(g) False

(h) false

(i) false

Discussion

39.	show that the points (-4 -7) (-1 2) (8 5) and (5 -4) taken in order are the vertices of a rhombus. Find its area
Answer» ONG>ANSWER: wui9sacjo9ezbko4aco96avLo04SC NMp6 Step-by-step EXPLANATION: WAbpitCk9rSC j95sho7s o6zb05 out AZ NMod d84du95f

39.

show that the points (-4 -7) (-1 2) (8 5) and (5 -4) taken in order are the vertices of a rhombus. Find its area

Answer» ONG>ANSWER:

wui9sacjo9ezbko4aco96avLo04SC NMp6

Step-by-step EXPLANATION:

WAbpitCk9rSC j95sho7s o6zb05 out AZ NMod

d84du95f

Discussion

40.	2) Find the value of discriminant for the following quadratic equations. 2y2 - 5y + 10 = 0
Answer» ONG>ANSWER: Step-by-step EXPLANATION: √b²-4ac -5²-4×2×10 25-80 -55

40.

2) Find the value of discriminant for the following quadratic equations. 2y2 - 5y + 10 = 0

Answer» ONG>ANSWER:

Step-by-step EXPLANATION:

√b²-4ac

-5²-4×2×10

25-80

-55

Discussion

41.	Read the Attached file. Pls find the answer.
Answer» ong>Answer: *OPTION* C is *the* *answer* *because* if *you* *put* 0 *after* *the* *decimal* *there* is no *VALUE* *for* it *you* *can* *WRITE* 8.0411 *also* as 8.04110 *example:* 5.7666=5.76660

41.

Read the Attached file. Pls find the answer.

Answer»

ong>Answer:

OPTION C is the answer

because if you put 0 after the decimal there is no VALUE for it

you can WRITE 8.0411 also as 8.04110

example: 5.7666=5.76660

Discussion

42.	V) The cost of a pencil is 2 and a ball point pen is 15. Sheela pays 100 for the pencils and pens she purchased.v) Yamini and Fatima of class IX together contributed 200/- towards the PrimeMinister's Relief Fund.1) The sum of a two digit number and the number obtained by reversing the order of itsdigits is 121. If the digits in unit's and ten's place are ‘x’and y' respectively.
Answer» ONG>ANSWER: Answer will be 11 because 11x+11y=121

Discussion

43.	2.Example continuous variable.
Answer» In general, quantities such as PRESSURE, height, mass, WEIGHT, density, volume, TEMPERATURE, and distance are examples of CONTINUOUS RANDOM variables. ӇƠƤЄ ƖƬ ӇЄԼƤƧ ƲӇӇ⤴️☺️ MƛƦƘ MЄ ƛƧ ƁƦƛƖƝԼƖƧƬ❣️

43.

2.Example continuous variable.

Answer»

In general, quantities such as PRESSURE, height, mass, WEIGHT, density, volume, TEMPERATURE, and distance are examples of CONTINUOUS RANDOM variables.

ӇƠƤЄ ƖƬ ӇЄԼƤƧ ƲӇӇ⤴️☺️

MƛƦƘ MЄ ƛƧ ƁƦƛƖƝԼƖƧƬ❣️

Discussion

44.	The ratio of the ages of father and son at present is 6: 1. After 5 years the ratio will become 7:2. Find the present age of the son? 3 years5 years7 years4 years
Answer» > ❍ Let the present ages of FATHER and his SON be 6x years and x years respectively. — After FIVE years their ages; Son's age = (x + 5) years Father's age = (6x + 5) years ⠀⠀⠀⠀⠀ $\underline{\bigstar\:\boldsymbol{According \;to \;the \;given \;Question :}}$ ⠀⠀⠀⠀⠀ After five years, the ratio of their ages (father's age and son's age) will become 7: 2. ⠀⠀⠀⠀⠀ Therefore, ⠀⠀⠀⠀⠀ $:\implies\sf \bigg(\dfrac{6x + 5}{x + 5}\bigg) = \bigg(\dfrac{7}{2}\bigg)\\\\\\:\implies\sf 2(6x + 5) = 7(x + 5) \\\\\\:\implies\sf 12x + 10 = 7x + 35\\\\\\:\implies\sf 7x - 12x = 10 - 35\\\\\\:\implies\sf -5x = -25\\\\\\:\implies\sf x = \cancel\dfrac{-25}{-5}\\\\\\:\implies\underline{\boxed{\frak{\pink{x = 5}}}}\;\bigstar$ ⠀⠀⠀⠀⠀ Hence, Present age of son = x = 5 years. Present age of father = 6x = 6(5) = 30 years. ⠀⠀⠀⠀⠀ $\therefore{\underline{\textsf{Hence, \; present\;age\;of\;son\; is\;\textbf{Option b) 5 years}.}}}$

44.

The ratio of the ages of father and son at present is 6: 1. After 5 years the ratio will become 7:2. Find the present age of the son? 3 years5 years7 years4 years

Answer»

>

❍ Let the present ages of FATHER and his SON be 6x years and x years respectively.

— After FIVE years their ages;

Son's age = (x + 5) years
Father's age = (6x + 5) years

⠀⠀⠀⠀⠀

$\underline{\bigstar\:\boldsymbol{According \;to \;the \;given \;Question :}}$

⠀⠀⠀⠀⠀

After five years, the ratio of their ages (father's age and son's age) will become 7: 2.

⠀⠀⠀⠀⠀

Therefore,

⠀⠀⠀⠀⠀

$:\implies\sf \bigg(\dfrac{6x + 5}{x + 5}\bigg) = \bigg(\dfrac{7}{2}\bigg)\\\\\\:\implies\sf 2(6x + 5) = 7(x + 5) \\\\\\:\implies\sf 12x + 10 = 7x + 35\\\\\\:\implies\sf 7x - 12x = 10 - 35\\\\\\:\implies\sf -5x = -25\\\\\\:\implies\sf x = \cancel\dfrac{-25}{-5}\\\\\\:\implies\underline{\boxed{\frak{\pink{x = 5}}}}\;\bigstar$

⠀⠀⠀⠀⠀

Hence,

Present age of son = x = 5 years.

Present age of father = 6x = 6(5) = 30 years.

⠀⠀⠀⠀⠀

$\therefore{\underline{\textsf{Hence, \; present\;age\;of\;son\; is\;\textbf{Option b) 5 years}.}}}$

Discussion

45.	5. A, B and C together can complete a piece of work in 10 days. All the threestarted working at it together and after4 days 'A' left. Then B and C togethercompleted the work in 10 more days.'A' alone can complete the work in
Answer» ong>ANSWER: (a+b+c) do work in 10 days so,( a+b+c)'s work =1÷10 and as they work TOGETHER for 4 days so work done by them in 4 days = 4÷10 =2÷5 remaining work = 1+2÷5 (b+c) take 10 more days to complete 3÷5 work so, (b+c)'s 1 day work =3÷5 now A's 1 day work = 1÷10 - 3÷5 = 1÷25 A does 1÷25 work in 1 day THEREFORE, A can complete 1 work in 25 day

45.

5. A, B and C together can complete a piece of work in 10 days. All the threestarted working at it together and after4 days 'A' left. Then B and C togethercompleted the work in 10 more days.'A' alone can complete the work in

Answer»

ong>ANSWER:

(a+b+c) do work in 10 days

so,( a+b+c)'s work =1÷10 and as they work TOGETHER for 4 days so work done by them in 4 days = 4÷10 =2÷5

remaining work = 1+2÷5

(b+c) take 10 more days to complete 3÷5 work

so, (b+c)'s 1 day work =3÷5

now A's 1 day work = 1÷10 - 3÷5 = 1÷25

A does 1÷25 work in 1 day

THEREFORE, A can complete 1 work in 25 day

Discussion

46.	15 books wiehg 6 kgs .what will 6 books wiehg?
Answer» ONG>ANSWER: 2.4 KG IS *THE* *ANSWER* , 6 *BOOKS* *WEIGH* 2.5 KG

Discussion

47.	Find using identify (5x-4y)²
Answer» ong>Answer: PLEASE MARK my answer as the brainliest answer. HOPE it helps you!!!

47.

Find using identify (5x-4y)²

Answer»

ong>Answer:

PLEASE MARK my answer as the brainliest answer.

HOPE it helps you!!!

Discussion

48.	Answer it fast and don't answer if you don't know
Answer» ONG>Answer: Given :- 2x² - 7x + 5 Now , by middle TERM SPLITTING we factorise it !! 2x² - 7x + 5 2x² - 5x - 2x + 5 X ( 2x - 5 ) - 1 ( 2x - 5 ) ( x - 1 ) ( 2x - 5 )

48.

Answer it fast and don't answer if you don't know

Answer» ONG>Answer:

Given :- 2x² - 7x + 5

Now ,

by middle TERM SPLITTING we factorise it !!

2x² - 7x + 5

2x² - 5x - 2x + 5

X ( 2x - 5 ) - 1 ( 2x - 5 )

( x - 1 ) ( 2x - 5 )

Discussion

49.	1211 , 1212, 1220, 1301, ?
Answer» ONG>ANSWER: What we have to do PLEASE TELL.

Discussion

50.	1521 ka gunankhand kya ho ga
Answer» ONG>ANSWER: PREPOSITIONAL FORTIFICATIONS

Discussion

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