332354 + Interview Questions in Secondary School in Math

1.	The order of increasing radius is:1. Van der Waals’radius > Metallic radius > Covalent radius2. Metallic radius > Van der Waals’radius > Covalent radius3. Van der Waals’radius > Covalent radius > Metallic radius
Answer» 3. VAN Der waals'radius>Covalent radius >METALLIC radius

Discussion

2.	I) If A= 1200°. then find the value of sin 1200°
Answer» Answer: Step-by-step EXPLANATION: SIN(360*3+120)= sin(120)= sin(90+30) =cos(30) =

2.

I) If A= 1200°. then find the value of sin 1200°

Answer»

Answer:

Step-by-step EXPLANATION:

SIN(360*3+120)= sin(120)= sin(90+30)

=cos(30)

=

Discussion

3.	(p ⇒(p∨q)) ≡ (p ⇒ q) ∨(p ⇒ r)
Answer» ANSWER: SORRY! I can't UNDERSTAND your QUESTION

3.

(p ⇒(p∨q)) ≡ (p ⇒ q) ∨(p ⇒ r)

Answer»

ANSWER:

SORRY! I can't UNDERSTAND your QUESTION

Discussion

4.	1/(r+2)2 - 1/(r-2)2 Find the LCM of denominator
Answer» ANSWER: I THINK this is your answer

4.

1/(r+2)2 - 1/(r-2)2 Find the LCM of denominator

Answer»

ANSWER:

I THINK this is your answer

Discussion

5.	Find the coefficient of x²and x in product of (x-3) (x+5) (x-4)
Answer» ANSWER: yiyiiy cgtxutyi gotiyd yitiitudiy xugugig

5.

Find the coefficient of x²and x in product of (x-3) (x+5) (x-4)

Answer»

ANSWER:

yiyiiy cgtxutyi gotiyd yitiitudiy xugugig

Discussion

6.	If the point (1, 2) lies on the graph of the equation 2y = ax +5 find the value of a
Answer» Answer: *ꪖꪀᦓ᭙ꫀ᥅* Given equation is: 2y=ax−4. It is ALSO given that the POINT (1,2) LIES on the graph of the equation. ⇒2(2)=a(1)−4 ⇒a=4+4 ⇒a=8 Now, the linear equation is: 2y=8x−4 or y=4x−2 Again, when y=0,x= 1/2 and when x=0,y=−2 Therefore, the graph of the equation is as: in attachment

6.

If the point (1, 2) lies on the graph of the equation 2y = ax +5 find the value of a

Answer»

Answer:

ꪖꪀᦓ᭙ꫀ᥅

Given equation is: 2y=ax−4.

It is ALSO given that the POINT (1,2) LIES on the graph of the equation.

⇒2(2)=a(1)−4

⇒a=4+4

⇒a=8

Now, the linear equation is: 2y=8x−4 or y=4x−2

Again, when y=0,x= 1/2

and

when x=0,y=−2

Therefore, the graph of the equation is as:

in attachment

Discussion

7.	28-17-39+(-13) please as
Answer» ANSWER: it's answer should be-41

7.

28-17-39+(-13) please as

Answer»

ANSWER:

it's answer should be-41

Discussion

8.	5 pencils and 7pens together cost Rs. 50 whereas 7 pencils and 5 pens togethercost Rs. 46. Find the cost of one pencil and that of one pen.
Answer» Answer: LET pencil be x and let pen be y 5x+7y=50 7x+5y=46 multiply first EQUATION by 7 35x+49y = 350 multiply SECOND equation by 5 35x+25y=230 solving them we get 24y=120 which gives y is 5 RUPEES substituting in second equation we get x is 3 rupees

8.

5 pencils and 7pens together cost Rs. 50 whereas 7 pencils and 5 pens togethercost Rs. 46. Find the cost of one pencil and that of one pen.

Answer»

Answer:

LET pencil be x and let pen be y

5x+7y=50

7x+5y=46

multiply first EQUATION by 7

35x+49y = 350

multiply SECOND equation by 5

35x+25y=230

solving them we get 24y=120 which gives y is 5 RUPEES

substituting in second equation we get x is 3 rupees

Discussion

9.	3) Write the polynomial x3 - 1 in the coefficient form.-
Answer» Answer: Since in polynomial the power of VARIABLE should be non-negative integer so, X to the power 3 minus 1 is your required answer.

9.

3) Write the polynomial x3 - 1 in the coefficient form.-

Answer»

Answer:

Since in polynomial the power of VARIABLE should be non-negative integer so, X to the power 3 minus 1 is your required answer.

Discussion

10.	3,108 X 7,942 rounded
Answer» Answer: 24000000 Step-by-step explanation: Because - ROUNDING of 3108 is 3000. rounding of 7942 is 8000. So the ROUNDED MULTIPLICATION of 3108 and 7942 is = 3000 x 8000 = 24000000. Hope it was HELPFUL

10.

3,108 X 7,942 rounded

Answer»

Answer:

24000000

Step-by-step explanation:

Because - ROUNDING of 3108 is 3000.

rounding of 7942 is 8000.

So the ROUNDED MULTIPLICATION of 3108 and 7942 is

= 3000 x 8000 = 24000000.

Hope it was HELPFUL

Discussion

11.	__of solid is a measurment of the space occupied by it
Answer» Answer: VOLUME Step-by-step explanation: The volume of a solid is the MEASUREMENT of the PORTION of the SPACE occupied by it

11.

__of solid is a measurment of the space occupied by it

Answer»

Answer:

VOLUME

Step-by-step explanation:

The volume of a solid is the MEASUREMENT of the PORTION of the SPACE occupied by it

Discussion

12.	Find the value of tan 45° + cos 30′- sin 60°Plz give step by step explanation it is urgent
Answer» Step-by-step EXPLANATION: There you GO with PERFECT EXPLAINATION

12.

Find the value of tan 45° + cos 30′- sin 60°Plz give step by step explanation it is urgent

Answer»

Step-by-step EXPLANATION:

There you GO with PERFECT EXPLAINATION

Discussion

13.	Which is the equivalent fraction of 3 / 5 whose denominator is 20? *9 / 2016 / 2012 / 2010 / 20
Answer» Step-by-step explanation: According To Your Question Given Equivalent fraction of 3/5 and DENOMINATOR given 20 so 3×? /5×4 = ?/20 so it a Equivalent 3×4/5×4 = 12/20 so Your ANSWER is OPTION (C ) 12/20 hope it's help

13.

Which is the equivalent fraction of 3 / 5 whose denominator is 20? *9 / 2016 / 2012 / 2010 / 20

Answer»

Step-by-step explanation:

According To Your Question

Given Equivalent fraction of 3/5 and DENOMINATOR given 20

so 3×? /5×4 = ?/20 so it a Equivalent 3×4/5×4 = 12/20

so Your ANSWER is OPTION (C ) 12/20

hope it's help

Discussion

14.	3.)a) Find the area of a square cardboard whose didesmeasuement is 15 m. with solution
Answer» ANSWER: are of SQUARE is =SIDE ×side =15×15 =225

14.

3.)a) Find the area of a square cardboard whose didesmeasuement is 15 m. with solution

Answer»

ANSWER:

are of SQUARE is =SIDE ×side

=15×15

=225

Discussion

15.	a shop at 240000 is insured for 75% of its value. if rate of premium is 90 paise percent find the premium by the owner
Answer» Answer: 7hjdhd8ft8hoc9uvy9fc

15.

a shop at 240000 is insured for 75% of its value. if rate of premium is 90 paise percent find the premium by the owner

Answer»

Answer:

7hjdhd8ft8hoc9uvy9fc

Discussion

16.	(∼ p → (∼ p →(∼ p ∧ q))) ≡ p ∨ q
Answer» ANSWER: lwosjfjjcjfjusjssnabwbajajajajajs

16.

(∼ p → (∼ p →(∼ p ∧ q))) ≡ p ∨ q

Answer»

ANSWER:

lwosjfjjcjfjusjssnabwbajajajajajs

Discussion

17.	The following system of equation has which solution x + Y = 12 ,6 X + 6 Y =12
Answer» ANSWER: 6x + 6Y = 12 =>6(x + y)= 12 => x + y = 12÷6 =>x + y = 2 this will be the answer of yhis question

17.

The following system of equation has which solution x + Y = 12 ,6 X + 6 Y =12

Answer»

ANSWER:

6x + 6Y = 12

=>6(x + y)= 12

=> x + y = 12÷6

=>x + y = 2

this will be the answer of yhis question

Discussion

18.	Factorise: a²b+ab²+3a-3b-2b²a
Answer» QUESTION: FACTORISE: a²b+ab²+3a-3b-2b²a ANSWER: $= > {a}^{2} b + a {b}^{2} + 3a - 3b - 2 {b}^{2} a$ $= > ab(a + b - 2b) + 3(a - b)$ $= > ab(a - b) + 3(a - b)$ $= > (a - b)(ab + 3)$ HOPE this answer HELPS you ^_^ !

18.

Factorise: a²b+ab²+3a-3b-2b²a

Answer»

ANSWER:

$= > {a}^{2} b + a {b}^{2} + 3a - 3b - 2 {b}^{2} a$

$= > ab(a + b - 2b) + 3(a - b)$

$= > ab(a - b) + 3(a - b)$

$= > (a - b)(ab + 3)$

HOPE this answer HELPS you ^_^ !

Discussion

19.	Solve for x5x – 3 = 3x – 5
Answer» Answer: 5x - 3 = 3X - 5 2X = -2 x = -1 hope it HELPS ❤️!!

19.

Solve for x5x – 3 = 3x – 5

Answer»

Answer:

5x - 3 = 3X - 5

2X = -2

x = -1

hope it HELPS ❤️!!

Discussion

20.	Solve: 11x - 14 = 3x + 2
Answer» ANSWER: x=2 Step-by-step EXPLANATION: This is the answer to the QUESTION.

20.

Solve: 11x - 14 = 3x + 2

Answer»

ANSWER:

x=2

Step-by-step EXPLANATION:

This is the answer to the QUESTION.

Discussion

21.	15 workers take 12 hours to buid awall How many hours will 9 workerneed to build the same wall.
Answer» the TIME TAKEN by 15 workers = 15/12 =1.25 the time taken by 9 WORKER =9×1.25= 11.25

21.

15 workers take 12 hours to buid awall How many hours will 9 workerneed to build the same wall.

Answer»

the TIME TAKEN by 15 workers = 15/12 =1.25

the time taken by 9 WORKER =9×1.25= 11.25

Discussion

22.	13) The only equation withoutvariable is
Answer» ANSWER: KM km km in KN kn kn Step-by-step EXPLANATION: ....joinrmc-osho-xph

22.

13) The only equation withoutvariable is

Answer»

ANSWER:

KM km km in KN kn kn

Step-by-step EXPLANATION:

....joinrmc-osho-xph

Discussion

23.	The North-South distance of India is(a) 3550 km(b) 3220 km (c) 3214 km(d) 3450 km
Answer» ANSWER: OPTION (C) 3214 km hope it HELPS.

23.

The North-South distance of India is(a) 3550 km(b) 3220 km (c) 3214 km(d) 3450 km

Answer»

ANSWER:

OPTION (C)

3214 km

hope it HELPS.

Discussion

24.	An elevator descend into a mine shaft at the rate of 7m/minutes.if desent start from 29m above ground level ,how long will it take to reach-225m?
Answer» Answer: 1 hour Step-by-step EXPLANATION:

24.

An elevator descend into a mine shaft at the rate of 7m/minutes.if desent start from 29m above ground level ,how long will it take to reach-225m?

Answer»

Answer:

1 hour

Step-by-step EXPLANATION:

Discussion

25.	The mean proportional between12 and 3 is ____.
Answer» Step-by-step explanation: MEAN = SUM of two NUMBERS /2 so, 12+3/2 15/2 7.5 is the ANSWER.

25.

The mean proportional between12 and 3 is ____.

Answer»

Step-by-step explanation:

MEAN = SUM of two NUMBERS /2

so, 12+3/2

15/2

7.5 is the ANSWER.

Discussion

26.	7. The sum the two consecutive oddnumbers is 24. The smaller number is*
Answer» Answer: 11 and 13 Step-by-step explanation: Let X and X+2 are two CONSECUTIVE odd numbers, Then X + (X + 2) = 24 or, 2X = 24 - 2 or, X = 22/2 or, X = 11 Thus first number is 11 and second number is 13. HOPE IT HELPS ✌️ PLEASE MARK THE ANSWER AS BRAINLIEST. ✍️

26.

7. The sum the two consecutive oddnumbers is 24. The smaller number is*

Answer»

Answer:

11 and 13

Step-by-step explanation:

Let X and X+2 are two CONSECUTIVE odd numbers,

Then X + (X + 2) = 24

or, 2X = 24 - 2

or, X = 22/2

or, X = 11

Thus first number is 11 and second number is 13.

HOPE IT HELPS ✌️

PLEASE MARK THE ANSWER AS BRAINLIEST. ✍️

Discussion

27.	If diagonaldiagonal of square is 2√2cm Find theрerimeter of square
Answer» ANSWER: USING pythogorus theorem x^2+x^2= diagonal^2 2x^2=8 x^2=4 x=2 cm perimeter of square=4x = 4*2 =8cm

27.

If diagonaldiagonal of square is 2√2cm Find theрerimeter of square

Answer»

ANSWER:

USING pythogorus theorem

x^2+x^2= diagonal^2

2x^2=8

x^2=4

x=2 cm

perimeter of square=4x

= 4*2

=8cm

Discussion

28.	Convert 7 into improper fraction with steps
Answer» Answer: 7 = 7/1 (Improper FRACTION) PLEASE mark my answer as the BRAINLIEST !!!!

28.

Convert 7 into improper fraction with steps

Answer»

Answer:

7 = 7/1 (Improper FRACTION)

PLEASE mark my answer as the BRAINLIEST !!!!

Discussion

29.	Write - 7 as powers of - 3
Answer» ANSWER: the CORRECT answer is -3^7

29.

Write - 7 as powers of - 3

Answer»

ANSWER:

the CORRECT answer is -3^7

Discussion

30.	If triangleABC~triangle PQR such that 2AB=3PQ and BC =12cn then find the lenght of QR
Answer» Answer: $\huge\mathcal{\green{Hola!}}$ $\huge\mathfrak{\red{Answer}}$ : ➝ 8 cm Step-by-step explanation: ☆ Question:- If ∆ ABC ~ ∆ PQR such that 2AB=3PQ and BC =12CM then find the lenght of QR. ☆ Given:- ∆ ABC ~ ∆ PQR 2AB = 3PQ ☆ To find:- Length of QR. ☆ Required Solution:- Given that 2AB = 3PQ $= > \frac{AB}{PQ} = \frac{3}{2}$ $\huge\mathcal{\green{Also,}}$ Given that the two triangles are similar; $\huge\mathcal{\green{Therefore,}}$ AB/PQ = AC/PR = BC/QR $\huge\mathcal{\green{Also,}}$ Length of BC is given as 12 cm. $\huge\mathcal{\green{Therefore,}}$ $\frac{AB}{PQ} = \frac{BC}{QR}$ $= > \frac{3}{2} = \frac{12}{QR}$ QR = 24/3 $\fbox{\purple{➝ \ QR \ = \ 8}}$ $\huge\mathcal{\green{All \ the \ very \ best!}}$ $\huge\mathfrak{\red{@MissTranquil}}$ $\huge\fbox{\orange{be \ brainly}}$

30.

If triangleABC~triangle PQR such that 2AB=3PQ and BC =12cn then find the lenght of QR

Answer»

Answer:

$\huge\mathcal{\green{Hola!}}$

$\huge\mathfrak{\red{Answer}}$

: ➝ 8 cm

Step-by-step explanation:

☆ Question:-

If ∆ ABC ~ ∆ PQR such that 2AB=3PQ and BC =12CM then find the lenght of QR.

☆ Given:-

∆ ABC ~ ∆ PQR

2AB = 3PQ

☆ To find:-

Length of QR.

☆ Required Solution:-

Given that

2AB = 3PQ

$= > \frac{AB}{PQ} = \frac{3}{2}$

$\huge\mathcal{\green{Also,}}$

Given that the two triangles are similar;

$\huge\mathcal{\green{Therefore,}}$

AB/PQ = AC/PR = BC/QR

$\huge\mathcal{\green{Also,}}$

Length of BC is given as 12 cm.

$\huge\mathcal{\green{Therefore,}}$

$\frac{AB}{PQ} = \frac{BC}{QR}$

$= > \frac{3}{2} = \frac{12}{QR}$

QR = 24/3

$\fbox{\purple{➝ \ QR \ = \ 8}}$

$\huge\mathcal{\green{All \ the \ very \ best!}}$

$\huge\mathfrak{\red{@MissTranquil}}$

$\huge\fbox{\orange{be \ brainly}}$

Discussion

31.	9. The number of times a particular observation occurs is called its
Answer» The NUMBER of TIMES a PARTICULAR observation is called its frequency.

Discussion

32.	In the given figure, O is the centre of the circle. Find the value of x
Answer» Answer: N+Y+X=360(SEE PIC BELOW 4 REFERENCE) Z+N+40=180 N+Z=140 M+Y+30=180 M+Y=150 M+Y+N+Z=290 N=30(VERTICALLY OPPOSITE) Y=40 (VERTCALLY OPPOSITE X=360-(40+30) =360-70 =290 HOPE IM RIGHT MARK ME AS BRAINLIEST Step-by-step EXPLANATION:

32.

In the given figure, O is the centre of the circle. Find the value of x

Answer»

Answer:

N+Y+X=360(SEE PIC BELOW 4 REFERENCE)

Z+N+40=180

N+Z=140

M+Y+30=180

M+Y=150

M+Y+N+Z=290

N=30(VERTICALLY OPPOSITE)

Y=40 (VERTCALLY OPPOSITE

X=360-(40+30)

=360-70

=290

HOPE IM RIGHT

MARK ME AS BRAINLIEST

Step-by-step EXPLANATION:

Discussion

33.	The sum of n terms of an AP is S=2n²+ 5n . find the 20th term of
Answer» Given :- $\implies\sf\ S_n= 2n^2+5n$ To FIND :- we have to find out the of 20TH TERM of AP Solution :- As given $\sf\ \ \ S_n= 2n^2+5n \\ \\ \\ \sf where\ (n)\ is\ the\ number\ of\ terms \\ \\ \sf \ By\ putting\ n= 1\\ \\ \\ \implies\sf\ \ S_{1}= 2(1)^2+5(1)\\ \\ \\ \implies\sf\ \ S_{1}= 2\times 1+5\\ \\ \\ \implies\sf\ S_{1}= 2+5\\ \\ \\ \implies\underline{\boxed{\sf{\purple{S_{1}=a_1= 7}}}}\\ \\ \\ \implies\sf\ S_2= 2(2)^2+5(2)\\ \\ \\ \implies\sf\ 2\times 4+10\\ \\ \\ \implies\underline{\boxed{\sf\ S_2= 18}}\\ \\ \\ \implies\sf\ \ a_1+a_2= 18\\ \\ \implies\sf\ a_2=18-7\\ \\\implies\sf\ a_2= 11\\ \\ \\ \implies\sf\ d= a_2-a_1\\ \\ \\ \implies\sf\ d= 11-7\\ \\ \underline{\boxed{\sf\ \ d= 4}}\\ \\ \\ \bf\ a_{20}= a+19d\\ \\ \\ \implies\sf\ a_{20}= 7+19\times 4\\ \\ \\ \implies\sf\ a_{20}= 7+76\\ \\ \\ \implies\underline{\boxed{\pink{\sf a_{20}=532}}}$ $\large\underline{\it{\bold \ Some \ formula\ realted\ AP}}\\ \\ \bullet\sf\ a_n= a+(n-1)d\\ \\ \bullet\sf\ S_n=\dfrac{n}{2}\big\{2a+(n-1)d\big\}\\ \\ \bf\ \ OR\\ \\ \bullet\sf\ S_n=\dfrac{n}{2}\big(a+\ell\big)\\ \\ \bullet\sf\ \ S_n-S_{n-1}= a_n\\ \\ \bullet\sf\ a_n-a_{n-1}= d$

33.

The sum of n terms of an AP is S=2n²+ 5n . find the 20th term of

Answer»

Given :-

$\implies\sf\ S_n= 2n^2+5n$

To FIND :-

we have to find out the of 20TH TERM of AP

Solution :-

As given

$\sf\ \ \ S_n= 2n^2+5n \\ \\ \\ \sf where\ (n)\ is\ the\ number\ of\ terms \\ \\ \sf \ By\ putting\ n= 1\\ \\ \\ \implies\sf\ \ S_{1}= 2(1)^2+5(1)\\ \\ \\ \implies\sf\ \ S_{1}= 2\times 1+5\\ \\ \\ \implies\sf\ S_{1}= 2+5\\ \\ \\ \implies\underline{\boxed{\sf{\purple{S_{1}=a_1= 7}}}}\\ \\ \\ \implies\sf\ S_2= 2(2)^2+5(2)\\ \\ \\ \implies\sf\ 2\times 4+10\\ \\ \\ \implies\underline{\boxed{\sf\ S_2= 18}}\\ \\ \\ \implies\sf\ \ a_1+a_2= 18\\ \\ \implies\sf\ a_2=18-7\\ \\\implies\sf\ a_2= 11\\ \\ \\ \implies\sf\ d= a_2-a_1\\ \\ \\ \implies\sf\ d= 11-7\\ \\ \underline{\boxed{\sf\ \ d= 4}}\\ \\ \\ \bf\ a_{20}= a+19d\\ \\ \\ \implies\sf\ a_{20}= 7+19\times 4\\ \\ \\ \implies\sf\ a_{20}= 7+76\\ \\ \\ \implies\underline{\boxed{\pink{\sf a_{20}=532}}}$

$\large\underline{\it{\bold \ Some \ formula\ realted\ AP}}\\ \\ \bullet\sf\ a_n= a+(n-1)d\\ \\ \bullet\sf\ S_n=\dfrac{n}{2}\big\{2a+(n-1)d\big\}\\ \\ \bf\ \ OR\\ \\ \bullet\sf\ S_n=\dfrac{n}{2}\big(a+\ell\big)\\ \\ \bullet\sf\ \ S_n-S_{n-1}= a_n\\ \\ \bullet\sf\ a_n-a_{n-1}= d$

Discussion

34.	Riya take 20 min to reach his school with a speed of 3m/s.how far his school from home find in km
Answer» DISTANCE from her HOME to SCHOOL is 0.0000025 KM

34.

Riya take 20 min to reach his school with a speed of 3m/s.how far his school from home find in km

Answer»

DISTANCE from her HOME to SCHOOL is 0.0000025 KM

Discussion

35.	Find the sum which will amount to Rs.2100 in 8 years at 5% p.a
Answer» simple INTEREST 2100 5/100 105 RUPEES 1 YEAR interest is 105 8 year = 1058 =840 rupees interest 2100+840 = 2940 is p.a.

35.

Find the sum which will amount to Rs.2100 in 8 years at 5% p.a

Answer»

simple INTEREST

2100 *5/100

105 RUPEES

1 YEAR interest is 105

8 year = 105*8

=840 rupees interest

2100+840

= 2940 is p.a.

Discussion

36.	12. ABCD is a cyclic trapezium with ABparallel CD. Which of the following iscorrect? *(1 Point)ZA = 2DLA = 2CZA + 2B = 180°LA = LB
Answer» ANSWER: good NIGHT friends have a great DAY TODAY onwards and mark me as a brainlist answer please

36.

12. ABCD is a cyclic trapezium with ABparallel CD. Which of the following iscorrect? *(1 Point)ZA = 2DLA = 2CZA + 2B = 180°LA = LB

Answer»

ANSWER:

good NIGHT friends have a great DAY TODAY onwards and mark me as a brainlist answer please

Discussion

37.	Opposite angles of a rhombus are (2x) ° and (3x - 40) ° .Find value of x.
Answer» ANSWER: X=40° EXPLANATION: As we know that Opposite Angles in a RHOMBUS are always equal and adjacent angles are sum of 180°. Here in this question we have given two Opposite Angles of a rhombus to be (2x)° and (3x-40)° and we have to FIND the VALUE of x. So let's start! (2x)°=(3x-40)° [∵ Opposite Angles of rhombus] ⇒ 2x=3x-40° ⇒ 40°=3x-2x ⇒ 40°=x Hence the required value of x is 40°. ADDITIONAL INFORMATION: Learn more about rhombus:- → All SIDES in a rhombus are always equal. → The diagonals of a rhombus bisects each other at an angle of 90°. → A square can also be termed as a rhombus because all sides of square also equal and diagonals bisect each other at 90° in a square.

37.

Opposite angles of a rhombus are (2x) ° and (3x - 40) ° .Find value of x.

Answer»

ANSWER:

X=40°

EXPLANATION:

As we know that Opposite Angles in a RHOMBUS are always equal and adjacent angles are sum of 180°. Here in this question we have given two Opposite Angles of a rhombus to be (2x)° and (3x-40)° and we have to FIND the VALUE of x.

So let's start!

(2x)°=(3x-40)° [∵ Opposite Angles of rhombus]

⇒ 2x=3x-40°

⇒ 40°=3x-2x

⇒ 40°=x

Hence the required value of x is 40°.

ADDITIONAL INFORMATION:

Learn more about rhombus:-

→ All SIDES in a rhombus are always equal.

→ The diagonals of a rhombus bisects each other at an angle of 90°.

→ A square can also be termed as a rhombus because all sides of square also equal and diagonals bisect each other at 90° in a square.

Discussion

38.	(3) What the algebraic expression foe the statement Products of x and a substance from the productof b and y ?
Answer» ANSWER: answer is Xa=by Step-by-step EXPLANATION: this is the REQUIRED algebrai EXPRESSION

38.

(3) What the algebraic expression foe the statement Products of x and a substance from the productof b and y ?

Answer»

ANSWER:

answer is X*a=b*y

Step-by-step EXPLANATION:

this is the REQUIRED algebrai EXPRESSION

Discussion

39.	The base of a room is 12 sq m and its height is 3m , then its volume is *2 points40 cubic m36 cubic m4 cubic mnone of the above
Answer» Answer: Base AREA = 12msq. So...we can PUT both the VALUES in this FORMULA to get the solution. Hence, the volume of the Room is 363m^3. Step-by-step explanation:

39.

The base of a room is 12 sq m and its height is 3m , then its volume is *2 points40 cubic m36 cubic m4 cubic mnone of the above

Answer»

Answer:

Base AREA = 12msq. So...we can PUT both the VALUES in this FORMULA to get the solution. Hence, the volume of the Room is 363m^3.

Step-by-step explanation:

Discussion

40.	7. Find the cost of levelling a ground at the rate of 2 per square metre. The ground is 100 m long and60 m broad?
Answer» ANSWER: RS 12000 is the CORRECT answer

40.

7. Find the cost of levelling a ground at the rate of 2 per square metre. The ground is 100 m long and60 m broad?

Answer»

ANSWER:

RS 12000 is the CORRECT answer

Discussion

41.	11. State True/ False"AB and CD are two chords of a circle withlength 10 cm and 8 cm respectively. ChordCD is closer to the centre than chord AB." *(1 Point)TrueFalse
Answer» FALSE is the ANSWER PLEASE MARK me a BRAINLIST

Discussion

42.	Solve fast give fast
Answer» your ANSWERS are in PIC that i have attached hope this HELPS...

42.

Solve fast give fast

Answer»

your ANSWERS are in PIC that i have attached

hope this HELPS...

Discussion

43.	E) Find the value of the polynomial r- - 5x+5 if x = 1.
Answer» Answer: Step-by-step explanation: Gobarnath PATIL wah BETE wah mauj KARDI

43.

E) Find the value of the polynomial r- - 5x+5 if x = 1.

Answer»

Answer:

Step-by-step explanation:

Gobarnath PATIL wah BETE wah mauj KARDI

Discussion

44.	The most widely viewed football competition in world is _
Answer» The World CUP The World Cup is the most prestigious association football tournament in the world, as well as the most WIDELY viewed and FOLLOWED SPORTING event in the world, exceeding EVEN the Olympic Games.

44.

The most widely viewed football competition in world is _

Answer»

The World CUP

The World Cup is the most prestigious association football tournament in the world, as well as the most WIDELY viewed and FOLLOWED SPORTING event in the world, exceeding EVEN the Olympic Games.

Discussion

45.	In an inter-state transaction, goods worth Rs 8,000 are bought. If the rate of GST is 5%, find the amount of bill
Answer» ANSWER: GST=8000*5/100 =400 AMOUNT of bill=8000+400 =RS 8400

45.

In an inter-state transaction, goods worth Rs 8,000 are bought. If the rate of GST is 5%, find the amount of bill

Answer»

ANSWER:

GST=8000*5/100

=400

AMOUNT of bill=8000+400

=RS 8400

Discussion

46.	It A can do1/20th of the work in 1 day the number of days A will require to finish the job is
Answer» Answer: workdone= time taken RATE of WORK = 1day 1/20 TOTAL work = 100% = 100*1/20 = 50 days

46.

It A can do1/20th of the work in 1 day the number of days A will require to finish the job is

Answer»

Answer:

workdone= time taken *RATE of WORK

= 1day *1/20

TOTAL work = 100%

= 100*1/20

= 50 days

Discussion

47.	8. Show that(a) (x - y) (x + y) + (y - z) (y +z) + (z - x) (z + x) = 02.
Answer» Answer: i hope it *help* *you* *the* is i have SEND *the* *screen* *shot* Step-by-step explanation: please PLEASE please please FRIEND *make* me a *brainlist* *please* please**

47.

8. Show that(a) (x - y) (x + y) + (y - z) (y +z) + (z - x) (z + x) = 02.

Answer»

Answer:

i hope it help you the is i have SEND the screen shot

Step-by-step explanation:

please PLEASE please please FRIEND make me a brainlist please please

Discussion

48.	3 Fin the blanks :1) Zero has _____reciprocal.2) A simple closed curve made up of only line segments is called a_____.3) A ____graph shows the relationship between a whole and its parts.4) The coefficient of 5 xyz² is _____.5) Area of a square having one side of 4cm is _____.6) if x/y = k, then x and y are in_____ proportion. (K-constant)7) if the ones digit of a number is Oor 5 then it is divisible by ____.8) The horizontal axis is called ____ axis.
Answer» Answer: i Don't know the answers of all but i can answer a few of them 2) Polygon 4) 5 5) 16 7) 5 8) x-axis Hope it HELPS you!!!

48.

3 Fin the blanks :1) Zero has ___reciprocal.2) A simple closed curve made up of only line segments is called a_.3) A graph shows the relationship between a whole and its parts.4) The coefficient of 5 xyz² is _.5) Area of a square having one side of 4cm is _.6) if x/y = k, then x and y are in_ proportion. (K-constant)7) if the ones digit of a number is Oor 5 then it is divisible by .8) The horizontal axis is called __ axis.

Answer»

Answer:

i Don't know the answers of all but i can answer a few of them

2) Polygon

4) 5

5) 16

7) 5

8) x-axis

Hope it HELPS you!!!

Discussion

49.	Two right circular cylinders have equal radii. If their heights are in the ratio 1:2, findthe ratio of their curved surface areas.pls find it fast...
Answer» ANSWER: HOPE it's helpful PLEASE THANK my all QUESTION and follow

49.

Two right circular cylinders have equal radii. If their heights are in the ratio 1:2, findthe ratio of their curved surface areas.pls find it fast...

Answer»

ANSWER:

HOPE it's helpful PLEASE THANK my all QUESTION and follow

Discussion

50.	Evaluate : 4-2×(1/4) -3
Answer» SEE in IMAGE you will GET your ANSWER

50.

Evaluate : 4-2×(1/4) -3

Answer»

SEE in IMAGE you will GET your ANSWER

Discussion

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According To Your Question

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so 3×? /5×4 = ?/20 so it a Equivalent 3×4/5×4 = 12/20

so Your ANSWER is OPTION (C ) 12/20

hope it's help

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QUESTION:

ANSWER:

HOPE this answer HELPS you ^_^ !

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ANSWER:

EXPLANATION:

So let's start!

ADDITIONAL INFORMATION:

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I) If A= 1200°. then find the value of sin 1200°

1/(r+2)2 - 1/(r-2)2 Find the LCM of denominator

Find the coefficient of x²and x in product of (x-3) (x+5) (x-4)

If the point (1, 2) lies on the graph of the equation 2y = ax +5 find the value of a

28-17-39+(-13) please as

5 pencils and 7pens together cost Rs. 50 whereas 7 pencils and 5 pens togethercost Rs. 46. Find the cost of one pencil and that of one pen.

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__of solid is a measurment of the space occupied by it

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Which is the equivalent fraction of 3 / 5 whose denominator is 20? *9 / 2016 / 2012 / 2010 / 20

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a shop at 240000 is insured for 75% of its value. if rate of premium is 90 paise percent find the premium by the owner

The following system of equation has which solution x + Y = 12 ,6 X + 6 Y =12

Factorise: a²b+ab²+3a-3b-2b²a

Solve for x5x – 3 = 3x – 5

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13) The only equation withoutvariable is

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9. The number of times a particular observation occurs is called its

The sum of n terms of an AP is S=2n²+ 5n . find the 20th term of

Riya take 20 min to reach his school with a speed of 3m/s.how far his school from home find in km

Find the sum which will amount to Rs.2100 in 8 years at 5% p.a

12. ABCD is a cyclic trapezium with ABparallel CD. Which of the following iscorrect? *(1 Point)ZA = 2DLA = 2CZA + 2B = 180°LA = LB

Opposite angles of a rhombus are (2x) ° and (3x - 40) ° .Find value of x.

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The base of a room is 12 sq m and its height is 3m , then its volume is *2 points40 cubic m36 cubic m4 cubic mnone of the above

7. Find the cost of levelling a ground at the rate of 2 per square metre. The ground is 100 m long and60 m broad?

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Solve fast give fast

E) Find the value of the polynomial r- - 5x+5 if x = 1.

The most widely viewed football competition in world is _

In an inter-state transaction, goods worth Rs 8,000 are bought. If the rate of GST is 5%, find the amount of bill

It A can do1/20th of the work in 1 day the number of days A will require to finish the job is

8. Show that(a) (x - y) (x + y) + (y - z) (y +z) + (z - x) (z + x) = 02.

Evaluate : 4-2×(1/4) -3