332354 + Interview Questions in Secondary School in Math

1.	What sum of money will amount to rs.1000 at 5% in two years??
Answer» ANSWER: ask the PERSON who deposited the money.... he MUST have CALCULATED it before depositing the money

1.

What sum of money will amount to rs.1000 at 5% in two years??

Answer»

ANSWER:

ask the PERSON who deposited the money.... he MUST have CALCULATED it before depositing the money

Discussion

2.	Solve the equation x =3y+2 y=3x+2
Answer» Step-by-step EXPLANATION: x=3y+2y=3x+2 x=5y=3x+2 -3x-2-x=5y -4x-2=5y

2.

Solve the equation x =3y+2 y=3x+2

Answer»

Step-by-step EXPLANATION:

x=3y+2y=3x+2

x=5y=3x+2

-3x-2-x=5y

-4x-2=5y

Discussion

3.	Estimate the difference 362-279
Answer» ANSWER: Answer is 83 mark me the BRAINLIEST

3.

Estimate the difference 362-279

Answer»

ANSWER:

Answer is 83

mark me the BRAINLIEST

Discussion

4.	Convert the temperature given in the Kelvin scale to the Celsius scale 300k
Answer» ★T℃ = TK - 273.15 T℃ = 300 - 273.15 = 26.85℃ ★Thus, 26.85℃ = 300 K

4.

Convert the temperature given in the Kelvin scale to the Celsius scale 300k

Answer»

★T℃ = TK - 273.15

T℃ = 300 - 273.15

= 26.85℃

★Thus, 26.85℃ = 300 K

Discussion

5.	Rationalise the denominator of 5+√2/√7-√5
Answer» ANSWER: (5√7+5√5+√14+√10)/2 Step-by-step EXPLANATION: {(5+√2)/(√7-√5)}×{(√7+√5)/(√7+√5)} SIMPLIFY = (5√7+5√5+√14+√10)/7-5 (5√7+5√5+√14+√10)/2

5.

Rationalise the denominator of 5+√2/√7-√5

Answer»

ANSWER:

(5√7+5√5+√14+√10)/2

Step-by-step EXPLANATION:

{(5+√2)/(√7-√5)}×{(√7+√5)/(√7+√5)}

SIMPLIFY

= (5√7+5√5+√14+√10)/7-5

(5√7+5√5+√14+√10)/2

Discussion

6.	The oder of row matrix (8 9 7 6)
Answer» Answer: 1×4 Step-by-step EXPLANATION: there only ONE row horizontal there are 4 COLUMS vertically

6.

The oder of row matrix (8 9 7 6)

Answer»

Answer:

1×4

Step-by-step EXPLANATION:

there only ONE row horizontal

there are 4 COLUMS vertically

Discussion

7.	An exterior angle of a triangle is 130 degrees , then the angle between the bisectors of the other two angles can be
Answer» Answer: $\huge\sf\underline{\underline{\pink{✤ Answer:-}}}$ GIVEN: Angle A = 130° TO FIND : Angle DPE = Angle CPB =? Let angle B be 2x So, angle C = 180 - (130 +2x) = 50–2x So angle DCB =(50–2X)/2 Now, angle CDA = 2x + (50–2x)/2 ( as exterior angle = the sum of 2 opposite interior angles) => angle CDA = (2x +50)/2 = X+ 25 ……..(1) Now,in triangle AEB, angle AEB =180 - (130+x) = 50 -x ………….(2) So, in quadrilateral ADPE, angle DPE = 360 -(130 + x+25 + 50-x) => angle DPE = 360- 205 => angle DPE = 155°

7.

An exterior angle of a triangle is 130 degrees , then the angle between the bisectors of the other two angles can be

Answer»

Answer:

$\huge\sf\underline{\underline{\pink{✤ Answer:-}}}$

GIVEN: Angle A = 130°

TO FIND : Angle DPE = Angle CPB =?

Let angle B be 2x

So, angle C = 180 - (130 +2x) = 50–2x

So angle DCB =(50–2X)/2

Now, angle CDA = 2x + (50–2x)/2 ( as exterior angle = the sum of 2 opposite interior angles)

=> angle CDA = (2x +50)/2 = X+ 25 ……..(1)

Now,in triangle AEB, angle AEB =180 - (130+x) = 50 -x ………….(2)

So, in quadrilateral ADPE,

angle DPE = 360 -(130 + x+25 + 50-x)

=> angle DPE = 360- 205

=> angle DPE = 155°

Discussion

8.	Please have a answer for this question
Answer» question HARD hai maybe RD SHARMA KA hai YE question

8.

Please have a answer for this question

Answer»

question HARD hai maybe RD SHARMA KA hai YE question

Discussion

9.	Solve the following inequalities number b,d,f,h
Answer» Answer: 3934 9294782 832904 eo 939401 93820 83 93 0235924

9.

Solve the following inequalities number b,d,f,h

Answer»

Answer:

3934

9294782

832904

eo

939401

93820

83

93

0235924

Discussion

10.	Find (- 4/5) X ( 3 / 7 ) X ( 15 / 16 ) X ( - 14 / 9 ) (please give me the answer
Answer» ANSWER: -4/53/715/16-14/9=4 will cancel 16 and 4 will remain 5 will cancel 15 and 3 will remain 7 will cancel 14 and 2 will remain 3 will cancel 9 and 3 will remain left part=-113-2/1143=6/12 =1/2 Step-by-step explanation:*

10.

Find (- 4/5) X ( 3 / 7 ) X ( 15 / 16 ) X ( - 14 / 9 ) (please give me the answer

Answer»

ANSWER:

-4/5*3/7*15/16*-14/9=4 will cancel 16 and 4 will remain

5 will cancel 15 and 3 will remain

7 will cancel 14 and 2 will remain

3 will cancel 9 and 3 will remain

left part=-1*1*3*-2/1*1*4*3=6/12

=1/2

Step-by-step explanation:

Discussion

11.	B. Write in short form: 3 X 10³+6X 10²+8 X 10' + 2 x 10°
Answer» ANSWER: *Here* *is your* *answer* *DEAR........ PLEASE* *mark me* *as the* *brainliest....... Step-by-step EXPLANATION:* SHORT form: *3682*

11.

B. Write in short form: 3 X 10³+6X 10²+8 X 10' + 2 x 10°

Answer»

ANSWER:

Here is your answer DEAR........ PLEASE mark me as the brainliest.......

Step-by-step EXPLANATION:

SHORT form:

3682

Discussion

12.	Log10 + log3= ______
Answer» ANSWER: log10+log3=1.477121 Step-by-step EXPLANATION: log10=1 log3=0.477121 so log10+log3=1.477121

12.

Log10 + log3= ______

Answer»

ANSWER:

log10+log3=1.477121

Step-by-step EXPLANATION:

log10=1

log3=0.477121

so log10+log3=1.477121

Discussion

13.	. If '+' and '÷', 'x' and –' are interchanged inthe equation 17 + 7- 27 + 7 x 3, then itsvalue will be-
Answer» Answer: HOPE it HELP you

13.

. If '+' and '÷', 'x' and –' are interchanged inthe equation 17 + 7- 27 + 7 x 3, then itsvalue will be-

Answer»

Answer:

HOPE it HELP you

Discussion

14.	Please please di it quickly
Answer» Answer: 8x,14x,4p,p,3p Step-by-step EXPLANATION: a)5x+3x=8x 8x+6x=14x b)12p-8p=4p 8p-7p=p 4p-p=3p

14.

Please please di it quickly

Answer»

Answer:

8x,14x,4p,p,3p

Step-by-step EXPLANATION:

a)5x+3x=8x

8x+6x=14x

b)12p-8p=4p

8p-7p=p

4p-p=3p

Discussion

15.	Square root of 16384 by long division method
Answer» $\text{[math]}$ HOPE IT HELPS U ❤️

15.

Square root of 16384 by long division method

Answer»

$\text{[math]}$

HOPE IT HELPS U ❤️

Discussion

16.	Mai fake nahi hu ye india ki no1 company h
Answer» Answer: OK you are CORRECT Step-by-step explanation: please MARK my answer as BRAINLIEST

16.

Mai fake nahi hu ye india ki no1 company h

Answer»

Answer:

OK you are CORRECT

Step-by-step explanation:

please MARK my answer as BRAINLIEST

Discussion

17.	The two numbers nearest to 20000 which are exactly divisible by 4, 2, 6, 5 and 3 are
Answer» Answer: 2004,19980 Step-by-step explanation: the number which 8s divisible by 4,2,6,5,3 will be its LCM so LCM=4×3×5=60 so we should divide 20000 by 60 60)20000(333 180 -------- 200 180 ------------------ 200 180 --------------------_--- 20 so we have to add 40 or substract 20 from it the anßwer be 20000-20=19980and 20000+40=20040

17.

The two numbers nearest to 20000 which are exactly divisible by 4, 2, 6, 5 and 3 are

Answer»

Answer:

2004,19980

Step-by-step explanation:

the number which 8s divisible by 4,2,6,5,3

will be its LCM

so LCM=4×3×5=60

so we should divide 20000 by 60

60)20000(333

180

--------

200

180

------------------

200

180

--------------------_---

20

so we have to add 40 or substract 20 from it

the anßwer be 20000-20=19980and 20000+40=20040

Discussion

18.	Pleaee ans these question
Answer» ANSWER: PLZ TAKE PHOTO CLEARLY.....

18.

Pleaee ans these question

Answer»

ANSWER:

PLZ TAKE PHOTO CLEARLY.....

Discussion

19.	(a) x = 1, y = 273 fox = 2/3, y = 1(C) x = 1, y = 31212. if one of the zero of the cubic polynomiat x?+ax?+bx+c is -1 then product of the other two zero is(a) a-b-(b) b--a-1loti-atb(d) if a - b
Answer» ANSWER: a-b- is answer of this QUESTION

19.

(a) x = 1, y = 273 fox = 2/3, y = 1(C) x = 1, y = 31212. if one of the zero of the cubic polynomiat x?+ax?+bx+c is -1 then product of the other two zero is(a) a-b-(b) b--a-1loti-atb(d) if a - b

Answer»

ANSWER:

a-b- is answer of this QUESTION

Discussion

20.	find two triangular number after 15 and show each of the 6 square root and 7 square root as the sum of two triangular number step by step
Answer» ANSWER: hiiiiiiiiiiiiiiiiiiiiiii

20.

find two triangular number after 15 and show each of the 6 square root and 7 square root as the sum of two triangular number step by step

Answer»

ANSWER:

hiiiiiiiiiiiiiiiiiiiiiii

Discussion

21.	12. The digit in the tens place of a two-digit number is three times that in the units place. If thedigits are reversed, the new number will be 36 less than the original number. Find theoriginal number. Check your solution.
Answer» let the unit DIGIT be x let the tens digit be y original no. =10y+x y=3x (ACCORDING to QUESTION)---[1] Reversed no. =10x+y (10y+x) - (10x+y) =36 10y+x-10x-y=36 9y-9x=36 9(y-x)=36 y-x=4-----[2] Substituting the value of 1st equation in 2nd 3x-x=4 2x=4 x=2 Hope it helps you please MARK me as brilliant

21.

12. The digit in the tens place of a two-digit number is three times that in the units place. If thedigits are reversed, the new number will be 36 less than the original number. Find theoriginal number. Check your solution.

Answer»

let the unit DIGIT be x

let the tens digit be y

original no. =10y+x

y=3x (ACCORDING to QUESTION)---[1]

Reversed no. =10x+y

(10y+x) - (10x+y) =36

10y+x-10x-y=36

9y-9x=36

9(y-x)=36

y-x=4-----[2]

Substituting the value of 1st equation in 2nd

3x-x=4

2x=4

x=2

Hope it helps you

please MARK me as brilliant

Discussion

22.	Please please do it quickly
Answer» ANSWER: what we should answer dear Step-by-step EXPLANATION:

22.

Please please do it quickly

Answer»

ANSWER:

what we should answer dear

Step-by-step EXPLANATION:

Discussion

23.	If A,B,C are the angles of triangle ABC,thensin 2 A sin C sin Bsin C sin 2B sin A =sin B sin A sin 20
Answer» ANSWER: A-2B,B-20 and C-2A Step-by-step EXPLANATION: MARK as BRANLIEST

23.

If A,B,C are the angles of triangle ABC,thensin 2 A sin C sin Bsin C sin 2B sin A =sin B sin A sin 20

Answer»

ANSWER:

A-2B,B-20 and C-2A

Step-by-step EXPLANATION:

MARK as BRANLIEST

Discussion

24.	Add the fractions.show the solution 11 2/5 + 4 6/20 =?
Answer» 11 2/5 + 4 6/20 57/5 + 86/20 228+86/20 314/20 15.7

24.

Add the fractions.show the solution 11 2/5 + 4 6/20 =?

Answer»

11 2/5 + 4 6/20

57/5 + 86/20

228+86/20

314/20

15.7

Discussion

25.	If +15 m represents going 15m to the east, then _____ m represents going 15m to the wes
Answer» ANSWER: -15M REPRESENT GOING to the WEST

25.

If +15 m represents going 15m to the east, then _____ m represents going 15m to the wes

Answer»

ANSWER:

-15M REPRESENT GOING to the WEST

Discussion

26.	2 power x+1 = 16 what will be the value of x?
Answer» ANSWER: hello 2^x+ 1 = 16 now we have to MAKE base equal both side 2^x+1 = 2^4 both side 2 is same x + 1 = 4 x = 4 -1 x = 3 i hope mt answer helps you.. please mark as BRAINLIST.. Step-by-step explanation:

26.

2 power x+1 = 16 what will be the value of x?

Answer»

ANSWER:

hello

2^x+ 1 = 16

now we have to MAKE base equal both side

2^x+1 = 2^4

both side 2 is same

x + 1 = 4

x = 4 -1

x = 3

i hope mt answer helps you..

please mark as BRAINLIST..

Step-by-step explanation:

Discussion

27.	Factorize y^4-12y^2+36
Answer» Answer: (y²+6²) Step-by-step EXPLANATION: by using the IDENTITY.... a²+2ab+b² - (a+b)² (y²)²+2(y²)+(6)+(6² hope u helpful...

27.

Factorize y^4-12y^2+36

Answer»

Answer:

(y²+6²)

Step-by-step EXPLANATION:

by using the IDENTITY....

a²+2ab+b² - (a+b)²

(y²)²+2(y²)+(6)+(6²

hope u helpful...

Discussion

28.	Find all T ratios if - 1. sin T=11/15 2. Cosec T =√10
Answer» *HOPE* it is *HELPFUL* to *you* *THANK* *you*

28.

Find all T ratios if - 1. sin T=11/15 2. Cosec T =√10

Answer»

HOPE it is HELPFUL to you

THANK you

Discussion

29.	Q.No. 1. Do as directed;(Tick correct one)(1) which is not the solution of X - Y=0(a) (1,1)(b) (-1, 1)(c) (1,-1)(d) (1,0)(Tick correct one)(II) an =...(a) "Vam(c) "Vna(b) "Van(d) Vm?(III) AAS is not the criteria for congruence of two triangles(IV) Probability of an event may be 1(True/False)(True/False)(V) The graph of X = 2 is parallel to:(X-Axis/ Y-Axis)
Answer» AAS is the criteria for CONGRUENCE of two triangles Solution : which is not the solution of X - Y=0 1 - 1 = 0 ( 1, 1) is solution -1 - 1 = - 2 ≠ 0 ( -1 , 1) is not solution 1 - (-1) = 2 ≠ 0 ( 1 ,- 1) is not solution 1 - 0 = 1 ≠ 0 ( 1 ,0) is not solution b , c & d are not solution a ( 1, 1) is solution AAS is not the criteria for congruence of two triangles - FALSE its criteria for congruence as AA makes triangle similar S makes congruent Probability of an event may be 1 - TRUE The graph of X = 2 is parallel to: Y AXIS Learn more: (III) AAS is not the criteria for congruence of two triangles(True/False ... brainly.in/question/21313342 (III) AAS is not the criteria for congruence of two triangles(True/False ... brainly.in/question/21164313

29.

Q.No. 1. Do as directed;(Tick correct one)(1) which is not the solution of X - Y=0(a) (1,1)(b) (-1, 1)(c) (1,-1)(d) (1,0)(Tick correct one)(II) an =...(a) "Vam(c) "Vna(b) "Van(d) Vm?(III) AAS is not the criteria for congruence of two triangles(IV) Probability of an event may be 1(True/False)(True/False)(V) The graph of X = 2 is parallel to:(X-Axis/ Y-Axis)

Answer»

AAS is the criteria for CONGRUENCE of two triangles

Solution :

which is not the solution of X - Y=0

1 - 1 = 0 ( 1, 1) is solution

-1 - 1 = - 2 ≠ 0 ( -1 , 1) is not solution

1 - (-1) = 2 ≠ 0 ( 1 ,- 1) is not solution

1 - 0 = 1 ≠ 0 ( 1 ,0) is not solution

b , c & d are not solution

a ( 1, 1) is solution

AAS is not the criteria for congruence of two triangles - FALSE

its criteria for congruence as AA makes triangle similar

S makes congruent

Probability of an event may be 1 - TRUE

The graph of X = 2 is parallel to: Y AXIS

Learn more:

(III) AAS is not the criteria for congruence of two triangles(True/False ...

brainly.in/question/21313342

(III) AAS is not the criteria for congruence of two triangles(True/False ...

brainly.in/question/21164313

Discussion

30.	-5/4 exponent is -3
Answer» ANSWER: $-\frac{4}{125}$ Step-by-step EXPLANATION: $-\frac{5}{4}^{-3}$ = $-\frac{4}{5^{3}}$ = $-\frac{4}{125}$ HOPE it helps please MARK as BRAINLIEST

30.

-5/4 exponent is -3

Answer»

ANSWER:

$-\frac{4}{125}$

Step-by-step EXPLANATION:

$-\frac{5}{4}^{-3}$ = $-\frac{4}{5^{3}}$

= $-\frac{4}{125}$

HOPE it helps

please MARK as BRAINLIEST

Discussion

31.	If alpha beta are the roots of x+1/x=10/3,then relation between alpha and beeta.
Answer» $\large{\underline{\underline{\red{\sf{GIVEN:}}}}}$ $\tt{\alpha \:and\: \beta \:are\: zeroes \:of \:equ^{n}}$ $\tt{The\:equ^{n}\:is\:x+\dfrac{1}{x}=\dfrac{10}{3}}$ $\large{\underline{\underline{\red{\sf{TO\:FIND:}}}}}$ $\tt{Relation\: between\:\alpha\:and\:\beta}$ $\large{\underline{\underline{\red{\sf{ANSWER:}}}}}$ $\sf{Given \:<klux>QUADRATIC</klux> \:<klux>EQUATION</klux>\: is \:x +\dfrac{ 1}{x }=\dfrac{ 10}{3}}$ . So , firstly let's simplify the equation , $\tt{\implies x+\dfrac{1}{x}=\dfrac{10}{3}}$ $\tt{\implies \dfrac{x^2+1}{x}=\dfrac{10}{3}}$ $\tt{\implies 3(x^2+1)=10x}$ $\tt{\implies 3x^2+3=10x }$ $\tt{\implies 3x^2-10x+3=0}$ Now we CONVERTED this equⁿ in standard FORM of a quadratic equation that is ax²+bx+c . Now we know a relationship between zeroes and COEFFICIENTS as , $\large{\underline{\boxed{\purple{\rm{\leadsto Product\:of\: Zeroes=\dfrac{Coefficient\:of\: constant\:term}{Coefficient\:of\:x^2}=\dfrac{c}{a}}}}}}$ Now here zeroes are alpha and beta. Here , $\orange{\sf{Coefficient\:of\:c\:=\:3}}$ $\orange{\sf{Coefficient\:of\:x^2\:=\:3}}$ $\tt{\implies \alpha\beta=\dfrac{3}{3}}$ $\tt{\implies \alpha\beta=1}$ $\underline{\green{\tt{\underset{\purple{Required\: relationship}}{\underbrace{\dag\alpha=\dfrac{1}{\beta}}}}}}$

31.

If alpha beta are the roots of x+1/x=10/3,then relation between alpha and beeta.

Answer»

$\large{\underline{\underline{\red{\sf{GIVEN:}}}}}$

$\tt{\alpha \:and\: \beta \:are\: zeroes \:of \:equ^{n}}$
$\tt{The\:equ^{n}\:is\:x+\dfrac{1}{x}=\dfrac{10}{3}}$

$\large{\underline{\underline{\red{\sf{TO\:FIND:}}}}}$

$\tt{Relation\: between\:\alpha\:and\:\beta}$

$\large{\underline{\underline{\red{\sf{ANSWER:}}}}}$

$\sf{Given \:<klux>QUADRATIC</klux> \:<klux>EQUATION</klux>\: is \:x +\dfrac{ 1}{x }=\dfrac{ 10}{3}}$ .

So , firstly let's simplify the equation ,

$\tt{\implies x+\dfrac{1}{x}=\dfrac{10}{3}}$

$\tt{\implies \dfrac{x^2+1}{x}=\dfrac{10}{3}}$

$\tt{\implies 3(x^2+1)=10x}$

$\tt{\implies 3x^2+3=10x }$

$\tt{\implies 3x^2-10x+3=0}$

Now we CONVERTED this equⁿ in standard FORM of a quadratic equation that is ax²+bx+c .

Now we know a relationship between zeroes and COEFFICIENTS as ,

$\large{\underline{\boxed{\purple{\rm{\leadsto Product\:of\: Zeroes=\dfrac{Coefficient\:of\: constant\:term}{Coefficient\:of\:x^2}=\dfrac{c}{a}}}}}}$

Now here zeroes are alpha and beta.

Here ,

$\orange{\sf{Coefficient\:of\:c\:=\:3}}$
$\orange{\sf{Coefficient\:of\:x^2\:=\:3}}$

$\tt{\implies \alpha\beta=\dfrac{3}{3}}$

$\tt{\implies \alpha\beta=1}$

$\underline{\green{\tt{\underset{\purple{Required\: relationship}}{\underbrace{\dag\alpha=\dfrac{1}{\beta}}}}}}$

Discussion

32.	Agar ghar baithe paisa kamana ho to comment me batana
Answer» Answer: COMMENTS me error aata H can u tell me how we can COMMENT on this APP on any QUESTION..

32.

Agar ghar baithe paisa kamana ho to comment me batana

Answer»

Answer:

COMMENTS me error aata H can u tell me how we can COMMENT on this APP on any QUESTION..

Discussion

33.	Simplify (27)^(1÷3)×(8)×^(1÷3)
Answer» ANSWER: 6. Step-by-step explanation: (27)^(1/3)(8)^(1/3) 32 6.

33.

Simplify (27)^(1÷3)×(8)×^(1÷3)

Answer»

ANSWER: 6.

Step-by-step explanation:

(27)^(1/3)*(8)^(1/3)

3*2

6.

Discussion

34.	State whether the following statement is true or false
Answer» Answer: 1 false 2 false 3 TRUE 4 true

34.

State whether the following statement is true or false

Answer»

Answer:

1 false

2 false

3 TRUE

4 true

Discussion

35.	Show that [square root of 2+3 square root of 8]^2 = 98
Answer» ANSWER: $( \sqrt{2} + 3 \sqrt{8} ) {}^{2} = ( \sqrt{2} + 6 \sqrt{2} ) {}^{2} =$ $(7 \sqrt{2} ) {}^{2} = 49 \times 2 = 98$

35.

Show that [square root of 2+3 square root of 8]^2 = 98

Answer»

ANSWER:

$( \sqrt{2} + 3 \sqrt{8} ) {}^{2} = ( \sqrt{2} + 6 \sqrt{2} ) {}^{2} =$

$(7 \sqrt{2} ) {}^{2} = 49 \times 2 = 98$

Discussion

36.	Ex. 5 The length of a rectangle is increased by 20%and breadth is decreased by 10% Calculate thepercentage change in the area.
Answer» Answer: LET L, B & A be the initial length , BREADTH & area respectively of the rectangle. Hence, increase in area = (108/100 -1). l.b = 8/100lb = 8% . Step-by-step EXPLANATION:*

36.

Ex. 5 The length of a rectangle is increased by 20%and breadth is decreased by 10% Calculate thepercentage change in the area.

Answer»

Answer:

LET L, B & A be the initial length , BREADTH & area respectively of the rectangle. Hence, increase in area = (108/100 -1). l.b = 8/100*lb = 8% .

Step-by-step EXPLANATION:

Discussion

37.	10. The length of rectangle is three timesit's width and it's perimeter 56m. Find itslength.
Answer» Answer: let , width = x length = 3x Given , it's PERIMETER = 56CM => 2(l+b) = 56 cm => 2(4x) = 56 cm => 8X = 56cm => x = 56/8 => x = 7cm therefore , it's length = 3(x) = 21cm

37.

10. The length of rectangle is three timesit's width and it's perimeter 56m. Find itslength.

Answer»

Answer:

let , width = x

length = 3x

Given , it's PERIMETER = 56CM

=> 2(l+b) = 56 cm

=> 2(4x) = 56 cm

=> 8X = 56cm

=> x = 56/8

=> x = 7cm

therefore , it's length = 3(x) = 21cm

Discussion

38.	F(x)=(x-5)²+3. Find f^-1(x)
Answer» ANSWER: √x-3 +5 Step-by-step EXPLANATION:

38.

F(x)=(x-5)²+3. Find f^-1(x)

Answer»

ANSWER:

√x-3 +5

Step-by-step EXPLANATION:

Discussion

39.	Principal amt 7000SI 1500 time 3yrs what is the rate
Answer» rate=7.14% HOPE U LIKED the ANSWER

39.

Principal amt 7000SI 1500 time 3yrs what is the rate

Answer»

rate=7.14%

HOPE U LIKED the ANSWER

Discussion

40.	Why was Harbhajan Singh reluctant to meet zamindar
Answer» Can't UNDERSTAND your QUESTION DEAR

40.

Why was Harbhajan Singh reluctant to meet zamindar

Answer»

Can't UNDERSTAND your QUESTION DEAR

Discussion

41.	3. (i) The amount with Aarthi is 80 more than thatwith Bhargavi. Chandini has 50 less than theamount with Bhargavi. Divyani has 120 morethan the sum of the amounts with Bhargavi andChandini. The money with them, when pooledtogether, is in denominations of 10 and 520 onlyand they together have a total of 500. What isthe least number of 10 notes they can have?(A) 1 (B) 2 (C) 3(D) 4CARS
Answer» ANSWER: The minimum no. of 10 notes required is 1. Step-by-step explanation: LET the amount with Aarti be A, Bhargavi be B and Chandani be C. According to Question, A = B + 80 --------------------(1) C = B - 50 ---------------------(2) D = 120 + B + C ⇒ D = 120 + 2B - 50 ⇒ D = 2B + 70 --------------------(3) A+B+C+D = 500 ⇒ B+80 + B + B-50 + 2B + 70 = 500 ⇒ 5B = 500 - 100 ⇒ 5B = 400 ⇒ B = 80 ⇒ A = 160 ⇒ C = 30 ⇒ D = 230 Denominations are of --- 5, 10, 20 So, the amount can be divided as --- (11x20) + (10x1) So, the minimum no. of 10 notes required is 1. Hope this helps.....

41.

3. (i) The amount with Aarthi is 80 more than thatwith Bhargavi. Chandini has 50 less than theamount with Bhargavi. Divyani has 120 morethan the sum of the amounts with Bhargavi andChandini. The money with them, when pooledtogether, is in denominations of 10 and 520 onlyand they together have a total of 500. What isthe least number of 10 notes they can have?(A) 1 (B) 2 (C) 3(D) 4CARS

Answer»

ANSWER:

The minimum no. of 10 notes required is 1.

Step-by-step explanation:

LET the amount with Aarti be A, Bhargavi be B and Chandani be C.

According to Question, A = B + 80 --------------------(1)

C = B - 50 ---------------------(2)

D = 120 + B + C

⇒ D = 120 + 2B - 50

⇒ D = 2B + 70 --------------------(3)

A+B+C+D = 500

⇒ B+80 + B + B-50 + 2B + 70 = 500

⇒ 5B = 500 - 100

⇒ 5B = 400

⇒ B = 80

⇒ A = 160

⇒ C = 30

⇒ D = 230

Denominations are of --- 5, 10, 20

So, the amount can be divided as --- (11x20) + (10x1)

So, the minimum no. of 10 notes required is 1.

Hope this helps.....

Discussion

42.	Check the correction of the formula f=ma dimensionally
Answer» To FIND, Dimensional correctness of F = ma, We need to equate the dimensions of both sides. Let's START with the LHS, F is given as, Newtons, or Kgm/s² So, Dimensional equation of force mlt^-2 Now, COMPARE the RHS Mass Dimensions are [M] ACCELERATION is given by, m/s So, Dimensional equation of acceleration is, lt^2

42.

Check the correction of the formula f=ma dimensionally

Answer»

To FIND, Dimensional correctness of F = ma,

We need to equate the dimensions of both sides.

Let's START with the LHS,

F is given as, Newtons, or Kgm/s²

So, Dimensional equation of force

mlt^-2

Now, COMPARE the RHS

Mass Dimensions are [M]

ACCELERATION is given by, m/s

So, Dimensional equation of acceleration is,

lt^2

Discussion

43.	9:x::x:16 what will be the value of x?
Answer» Answer: HEY buddy, => 9 : x :: x :16 Can be simply written as, => 9/x = x/16 => x^2 = 16 x 9 = 144 => x = (144)^1/2 = 12 => x = 12 HOPE THIS HELPS (^o^) Step-by-step explanation:

43.

9:x::x:16 what will be the value of x?

Answer»

Answer:

HEY buddy,

=> 9 : x :: x :16

Can be simply written as,

=> 9/x = x/16

=> x^2 = 16 x 9 = 144

=> x = (144)^1/2 = 12

=> x = 12

HOPE THIS HELPS (^o^)

Step-by-step explanation:

Discussion

44.	If tan A = 4/3 find the values of t ratios of angle A
Answer» Step-by-step EXPLANATION: if u like this answer then PLZ mark BRAINIEST

44.

If tan A = 4/3 find the values of t ratios of angle A

Answer»

Step-by-step EXPLANATION:

if u like this answer then PLZ mark BRAINIEST

Discussion

45.	In the figure, show that AB is parallel to CD
Answer» Step-by-step EXPLANATION: AB is PARALLEL to CD because if the lines are extended TOWARDS the left or right SIDE they will never intersect each other

45.

In the figure, show that AB is parallel to CD

Answer»

Step-by-step EXPLANATION:

AB is PARALLEL to CD because if the lines are extended TOWARDS the left or right SIDE they will never intersect each other

Discussion

46.	Cordinates of the equation +2y=6 is
Answer» Answer: 3=y Step-by-step explanation: 2y=6 y=6/2 y=3 I HOPE it will be HELPFUL

46.

Cordinates of the equation +2y=6 is

Answer»

Answer:

3=y

Step-by-step explanation:

2y=6

y=6/2

y=3

I HOPE it will be HELPFUL

Discussion

47.	(al 2.07(6) 1-28Find Place valueFace valueDifference between
Answer» ANSWER: PLSSSSSSSSS plsssssssss

47.

(al 2.07(6) 1-28Find Place valueFace valueDifference between

Answer»

ANSWER:

PLSSSSSSSSS plsssssssss

Discussion

48.	15or13.10 2+= 4,x + y X – Y x + y-+ 2 = 0, where x + y and x = - yx — уn ก by cross multiplication method
Answer» ANSWER: SORRY yhjjkplgdauhhdssd

48.

15or13.10 2+= 4,x + y X – Y x + y-+ 2 = 0, where x + y and x = - yx — уn ก by cross multiplication method

Answer»

ANSWER:

SORRY yhjjkplgdauhhdssd

Discussion

49.	Express the recurring decimal 17.89... in p/q form
Answer» 1789/100 HOPE it is HELPFUL

49.

Express the recurring decimal 17.89... in p/q form

Answer»

1789/100 HOPE it is HELPFUL

Discussion

50.	The resultant of two forces 5n and 10n can never be
Answer» ANSWER: EQUAL Step-by-step explanation: 5 N and 10 N are compleately different VALUES and hence cannot be equal.

50.

The resultant of two forces 5n and 10n can never be

Answer»

ANSWER:

EQUAL

Step-by-step explanation:

5 N and 10 N are compleately different VALUES and hence cannot be equal.

Discussion

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