332354 + Interview Questions in Secondary School in Math

1.	Prove that sin ^4 theta -cos^4 theta =1-2cos^2thet
Answer» To prove : sin⁴ theta - cos⁴ theta = 1 - 2 cos² theta Solution : LHS - sin⁴ theta - cos⁴ theta => [ sin² theta ] ² - [ cos² theta ] ² We know that , a² - b³ can be written as (a + b)( a - b) Utilising that identity here ; => [ sin² theta + cos ² theta ][ sin² theta - cos² theta] Now , sin² theta + cos ² theta = 1 => [ 1 ] [ sin² theta - cos ² theta ] sin² theta + cos ² theta = 1 => sin² theta = 1 - cos² theta => ( 1 - cos² theta ) - cos² theta => [ 1 - 2 cos ² theta ] So , sin⁴ theta - cos⁴ theta = 1 - 2sin² theta = 1 - 2 cos² theta Hence PROVED ____________________________________

1.

Prove that sin ^4 theta -cos^4 theta =1-2cos^2thet

Answer»

To prove :

sin⁴ theta - cos⁴ theta = 1 - 2 cos² theta

Solution :

LHS -

sin⁴ theta - cos⁴ theta

=> [ sin² theta ] ² - [ cos² theta ] ²

We know that , a² - b³ can be written as (a + b)( a - b)

Utilising that identity here ;

=> [ sin² theta + cos ² theta ][ sin² theta - cos² theta]

Now , sin² theta + cos ² theta = 1

=> [ 1 ] [ sin² theta - cos ² theta ]

sin² theta + cos ² theta = 1

=> sin² theta = 1 - cos² theta

=> ( 1 - cos² theta ) - cos² theta

=> [ 1 - 2 cos ² theta ]

So ,

sin⁴ theta - cos⁴ theta = 1 - 2sin² theta = 1 - 2 cos² theta

Hence PROVED

____________________________________

Discussion

2.	If P= Rs. 4000, Rate of Interest= 5%, Time= 1 year, find the compound Interest
Answer» Answer: CI =₹200. Step-by-step EXPLANATION: hope it's useful mark me as BRAINLIEST and give me thanks ALSO......

2.

If P= Rs. 4000, Rate of Interest= 5%, Time= 1 year, find the compound Interest

Answer»

Answer:

CI =₹200.

Step-by-step EXPLANATION:

hope it's useful mark me as BRAINLIEST and give me thanks ALSO......

Discussion

3.	X - z=6, y-z=4, x+y+z=19?
Answer» Step-by-step EXPLANATION: $x - z + y - z = 10 \\ x + y = 10 - 2z \\ 19 - z = 10 - 2z \\ z = - 9$ PLEASE MAKE me BRAINLIST

3.

X - z=6, y-z=4, x+y+z=19?

Answer»

Step-by-step EXPLANATION:

$x - z + y - z = 10 \\ x + y = 10 - 2z \\ 19 - z = 10 - 2z \\ z = - 9$

PLEASE MAKE me BRAINLIST

Discussion

4.	A skirt bought Rs 250 and sold at Rs 200.find the loss percentage
Answer» Step-by-step EXPLANATION: bahauhakwkskskeie9w8wiwiwiiwei

4.

A skirt bought Rs 250 and sold at Rs 200.find the loss percentage

Answer»

Step-by-step EXPLANATION:

bahauhakwkskskeie9w8wiwiwiiwei

Discussion

5.	காஷ்மீரில், ஒரு நாள் இரவின் வெப்ப நிலை -5 C. மறுநாள், அவ்வெப்பநிலை 9°C ஆகஉயர்ந்தது எனில், அதிகரித்த வெப்ப அளவினைக் காண்க
Answer» Step-by-step EXPLANATION: *The PROCESS in which a tadpole TURNS into a frog is CALLED metamorphosis, and it is an amazing TRANSFORMATION.*

5.

காஷ்மீரில், ஒரு நாள் இரவின் வெப்ப நிலை -5 C. மறுநாள், அவ்வெப்பநிலை 9°C ஆகஉயர்ந்தது எனில், அதிகரித்த வெப்ப அளவினைக் காண்க

Answer»

Step-by-step EXPLANATION:

The PROCESS in which a tadpole TURNS into a frog is CALLED metamorphosis, and it is an amazing TRANSFORMATION.

Discussion

6.	Factorise 14 mn²(zm-m)
Answer» ANSWER: what ??????? Step-by-step EXPLANATION: ?????????????????

6.

Factorise 14 mn²(zm-m)

Answer»

ANSWER:

what ???????

Step-by-step EXPLANATION:

?????????????????

Discussion

7.	Solve हल कीजिए(8²)³8²8⁵8⁶8⁷
Answer» Answer: 8^6 by EXPONENTIAL LAW (a^m)n=a^mn

7.

Solve हल कीजिए(8²)³8²8⁵8⁶8⁷

Answer»

Answer:

8^6

by EXPONENTIAL LAW (a^m)n=a^mn

Discussion

8.	Who is the father of decimal?????/who guysssss!
Answer» Step-by-step EXPLANATION: *ARYABHATTA* was the FATHER of DECIMAL

8.

Who is the father of decimal?????/who guysssss!

Answer»

Step-by-step EXPLANATION:

ARYABHATTA was the FATHER of DECIMAL

Discussion

9.	Simplify (1 - cos 0) (1 + cos 0) (1+ coto)
Answer» ANSWER: I HOPE it can HELP HEHEH

9.

Simplify (1 - cos 0) (1 + cos 0) (1+ coto)

Answer»

ANSWER:

I HOPE it can HELP

HEHEH

Discussion

10.	Volume of cylinder with r=3cm and h=9cm
Answer» Step-by-step explanation: PLEASE MARK me blranlist Answer by SOUMYA priyadarshini SAHOO

10.

Volume of cylinder with r=3cm and h=9cm

Answer»

Step-by-step explanation:

PLEASE MARK me blranlist

Answer by

SOUMYA priyadarshini SAHOO

Discussion

11.	(b) Obtain the standard form of the following Linear programming problem(LPP).Max 2 =5x1 +4x2 + 6x3, subject to the constraints3x1 + 4x2>4,3x1+2x2+x3 0.
Answer» Answer: NAHI PTA mere KO answer. kaise solve krte h mereko nhi ata bs POINTS mil rhe h toh mai collect KRR rha hu.

11.

(b) Obtain the standard form of the following Linear programming problem(LPP).Max 2 =5x1 +4x2 + 6x3, subject to the constraints3x1 + 4x2>4,3x1+2x2+x3 0.

Answer»

Answer:

NAHI PTA mere KO answer.

kaise solve krte h mereko nhi ata bs POINTS mil rhe h toh mai collect KRR rha hu.

Discussion

12.	1126I of 9" x 3² x 3 - (27) = 2 find thethe value(3 395 x 23of n 1
Answer» Can you imagine a world WITHOUT merchants, where we are LEFT to our own devices to acquire goods and SERVICES without middlemen? Sounds like a harsh place to be. The SALE and trade of goods defines much of the DEVELOPMENT and history of the world. Please mark me as Brainlist.

12.

1126I of 9" x 3² x 3 - (27) = 2 find thethe value(3 395 x 23of n 1

Answer»

Can you imagine a world WITHOUT merchants, where we are LEFT to our own devices to acquire goods and SERVICES without middlemen? Sounds like a harsh place to be. The SALE and trade of goods defines much of the DEVELOPMENT and history of the world.

Please mark me as Brainlist.

Discussion

13.	A man standing on the deck of a ship, 5m above the sea level, sees the top of a light house at an angle of elevation 70° and its foot at an angle of depression 30°.How far is the light house from the ship? Also calculate the height of the light house.
Answer» hai you are a BTS ARMY then PLZ FOLLOW me and our army

13.

A man standing on the deck of a ship, 5m above the sea level, sees the top of a light house at an angle of elevation 70° and its foot at an angle of depression 30°.How far is the light house from the ship? Also calculate the height of the light house.

Answer»

hai

you are a BTS ARMY

then PLZ FOLLOW me

and

our army

Discussion

14.	The centroid of triangle formed by the vertices (-2,-3), (5,-2) (3,2) is
Answer» ANSWER: (2,1) are the COORDINATES of CENTROID of the TRIANGLE

14.

The centroid of triangle formed by the vertices (-2,-3), (5,-2) (3,2) is

Answer»

ANSWER:

(2,1) are the COORDINATES of CENTROID of the TRIANGLE

Discussion

15.	How to divide 72 ÷ 3.6
Answer» ANSWER: DIVIDE the answer with HAND and GET the answer

15.

How to divide 72 ÷ 3.6

Answer»

ANSWER:

DIVIDE the answer with HAND and GET the answer

Discussion

16.	Find the largest number that divides 222, 315 and 718 leaving remainder 5 in each case.
Answer» Answer: 31 Step-by-step explanation: 222 , 315, and 718 leaves REMAINDER 5 222 - 5 = 217 315 - 5 = 310 718 - 5 = 713 we need to find out the HCF of 217, 310 and 713 217 = 7 × 31 310 = 2 × 5 × 31 713 = 23 × 31 therefore the HCF is = 31 31 divides 222, 315 and 718 leaving remainder of 5 Hope you get your answer

16.

Find the largest number that divides 222, 315 and 718 leaving remainder 5 in each case.

Answer»

Answer:

31

Step-by-step explanation:

222 , 315, and 718

leaves REMAINDER 5

222 - 5 = 217

315 - 5 = 310

718 - 5 = 713

we need to find out the HCF of 217, 310 and 713

217 = 7 × 31

310 = 2 × 5 × 31

713 = 23 × 31

therefore the HCF is = 31

31 divides 222, 315 and 718 leaving remainder of 5

Hope you get your answer

Discussion

17.	Who was the old lady to jumman shaikh
Answer» Answer: AUNT !!! Step-by-step EXPLANATION: please MARK as the BRAINLIEST please!!!

17.

Who was the old lady to jumman shaikh

Answer»

Answer:

AUNT !!!

Step-by-step EXPLANATION:

please MARK as the BRAINLIEST please!!!

Discussion

18.	A posi thue noo in stimes another number. Il 21 is addedto both the number than one of the new numbeus becotwice of other new numborso find the original numbeu
Answer» Step-by-step EXPLANATION: your ANSWER in ATTACHMENT

18.

A posi thue noo in stimes another number. Il 21 is addedto both the number than one of the new numbeus becotwice of other new numborso find the original numbeu

Answer»

Step-by-step EXPLANATION:

your ANSWER in ATTACHMENT

Discussion

19.	The longer side of a //gm is 5 more than the shorter side and the perimeter is 30 cm.find the sides
Answer» Answer: GOOD MORNING my friend I have done for the FOLLOWING week and then I can do it like 21st and 22ND and I don't know what

19.

The longer side of a //gm is 5 more than the shorter side and the perimeter is 30 cm.find the sides

Answer»

Answer:

GOOD MORNING my friend I have done for the FOLLOWING week and then I can do it like 21st and 22ND and I don't know what

Discussion

20.	If Sn denotes the sum of first n terms of an A.P. If S2n = 5Sn, then prove 6/3=17/4
Answer» Step-by-step EXPLANATION: do FL do do do to to HU babsbshfygdhhdzfztuorief

20.

If Sn denotes the sum of first n terms of an A.P. If S2n = 5Sn, then prove 6/3=17/4

Answer»

Step-by-step EXPLANATION:

do FL do do do to to HU babsbshfygdhhdzfztuorief

Discussion

21.	The area of a circle that can be inscribed in a square of side 10 cm is?
Answer» ANSWER: do bahshdjjfjfjgkgkkgkgkglt

21.

The area of a circle that can be inscribed in a square of side 10 cm is?

Answer»

ANSWER:

do bahshdjjfjfjgkgkkgkgkglt

Discussion

22.	All the radii of a circle are
Answer» Answer: ALL RADII OF A CIRCLE ARE EQUAL....✌✌ Step-by-step EXPLANATION: HOPE IT HELP UH...✌✌ @LV02.......❤❤

22.

All the radii of a circle are

Answer»

Answer:

ALL RADII OF A CIRCLE ARE EQUAL....✌✌

Step-by-step EXPLANATION:

HOPE IT HELP UH...✌✌

@LV02.......❤❤

Discussion

23.	Simplify 2 2/3 × 2 1/5
Answer» Answer: 22/3 × 21/5 154/5 might HELP you

23.

Simplify 2 2/3 × 2 1/5

Answer»

Answer:

22/3 × 21/5

154/5

might HELP you

Discussion

24.	if a line divides any two sides of a triangle in the same ratio, then prove that line is parallel to the third side.
Answer» Answer: Given : The line l intersects the SIDES PQ and side PR of ΔPQR in the points M and N respectively such that MQ PM = NR PN and P−M−Q, P−N−R. To Prove : Line l ∥ Side QR Proof : Let us consider that line l is not parallel to the side QR. Then there must be another line passing through M which is parallel to the side QR. Let line MK be that line. Line MK intersects the side PR at K, (P−K−R) In ΔPQR, line MK∥ side QR ∴ MQ PM = KR PK ....(1) (B.P.T.) But MQ PM = NR PN ....(2) (Given) ∴ KR PK = NR PN [From (1) and (2)] ∴ KR PK+KR = NR PN+NR (P−K−R and P−N−R) ∴ the points K and N are not different. ∴ line MK and line MN coincide ∴ line MN∥ Side QR Hence, the converse of B.P.T. is PROVED.

24.

if a line divides any two sides of a triangle in the same ratio, then prove that line is parallel to the third side.

Answer»

Answer:

Given : The line l intersects the SIDES PQ and side PR of ΔPQR in the points M and N respectively such that

MQ

PM

=

NR

PN

and P−M−Q, P−N−R.

To Prove : Line l ∥ Side QR

Proof : Let us consider that line l is not parallel to the side QR. Then there must be another line passing through M which is parallel to the side QR.

Let line MK be that line.

Line MK intersects the side PR at K, (P−K−R)

In ΔPQR, line MK∥ side QR

∴

MQ

PM

=

KR

PK

....(1) (B.P.T.)

But

MQ

PM

=

NR

PN

....(2) (Given)

∴

KR

PK

=

NR

PN

[From (1) and (2)]

∴

KR

PK+KR

=

NR

PN+NR

(P−K−R and P−N−R)

∴ the points K and N are not different.

∴ line MK and line MN coincide

∴ line MN∥ Side QR

Hence, the converse of B.P.T. is PROVED.

Discussion

25.	If Sumo got marks of 23 out of 40 in maths and how many percentage that that he get got
Answer» ANSWER: MARKS OBTAINED by sumo = 23/40 percentage = 23/40 X 100 percentage = 115/2 = 57.5% answer is 57. 5 %

25.

If Sumo got marks of 23 out of 40 in maths and how many percentage that that he get got

Answer»

ANSWER:

MARKS OBTAINED by sumo = 23/40

percentage = 23/40 X 100

percentage = 115/2 = 57.5%

answer is 57. 5 %

Discussion

26.	Solve for xplz help
Answer» ANSWER: okkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk I GIVE your answer FIRST MARK my answer BRILLIANCE

26.

Solve for xplz help

Answer»

ANSWER:

okkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk I GIVE your answer FIRST MARK my answer BRILLIANCE

Discussion

27.	State the name of a regular polygon of 6 side
Answer» ANSWER: hexagon Step-by-step EXPLANATION:

27.

State the name of a regular polygon of 6 side

Answer»

ANSWER:

hexagon

Step-by-step EXPLANATION:

Discussion

28.	Express first quantity as a percentage second 12Rs,84Rs
Answer» Answer: a ) 48 seconds, 5 minutes = 5∗60 48 ×100% =16% B) 63 CENTS, 9 dollers 1 doller=100 cents 9 dollers=900 cents Ans = 900 63 ×100% =7% C) 7mm, 2cm 1 cm=10 mm 2 cm=20 mm Ans = 20 7 ×100% =35% d) 24 min, 10 hours 1 hour= 60 min 10 hour= 600 min Ans = 600 24 ×100% =4%.

28.

Express first quantity as a percentage second 12Rs,84Rs

Answer»

Answer:

a ) 48 seconds, 5 minutes

=

5∗60

48

×100%

=16%

B) 63 CENTS, 9 dollers

1 doller=100 cents

9 dollers=900 cents

Ans =

900

63

×100%

=7%

C) 7mm, 2cm

1 cm=10 mm

2 cm=20 mm

Ans =

20

7

×100%

=35%

d) 24 min, 10 hours

1 hour= 60 min

10 hour= 600 min

Ans =

600

24

×100%

=4%.

Discussion

29.	What percent of 3 kg is 450 grams?
Answer» Answer: 3 KG = 3000 g So, X of 3000 g = 450 g x1/1003000 = 450 X = 15 % Step-by-step explanation: helpful plz brainliest

29.

What percent of 3 kg is 450 grams?

Answer»

Answer:

3 KG = 3000 g

So, X of 3000 g = 450 g

x*1/100*3000 = 450

X = 15 %

Step-by-step explanation:

helpful

plz brainliest

Discussion

30.	Find the length of a chord which is at a distance from center
Answer» Answer: Draw a segment perpendicular to the CHORD from the center, and this line will bisect the chord. Setting up the Pythagorean Theorem with the radius as the hypotenuse and the distance as ONE of the legs, we solve for the other leg. Since this leg is half of the chord, the TOTAL chord length is 2 times that, or 9.798.

30.

Find the length of a chord which is at a distance from center

Answer»

Answer:

Draw a segment perpendicular to the CHORD from the center, and this line will bisect the chord. Setting up the Pythagorean Theorem with the radius as the hypotenuse and the distance as ONE of the legs, we solve for the other leg. Since this leg is half of the chord, the TOTAL chord length is 2 times that, or 9.798.

Discussion

31.	If a and b are the roots of equation 2x²+4x-5=0then find a+b and ab
Answer» Answer: Step-by-step EXPLANATION: If alfa and beta are ROOTS of equation then we know that alfa + beta = -b/a = -4/2 = -2 a + b = -2 alfa x beta = c/a = -5/2 ab = -5/2 PLZ MARK ME BRAINLIEST

31.

If a and b are the roots of equation 2x²+4x-5=0then find a+b and ab

Answer»

Answer:

Step-by-step EXPLANATION:

If alfa and beta are ROOTS of equation then we know that

alfa + beta = -b/a

= -4/2

= -2

a + b = -2

alfa x beta = c/a

= -5/2

ab = -5/2

PLZ MARK ME BRAINLIEST

Discussion

32.	Log x = log 0.04571 ÷ log 0.02154
Answer» Answer: what do we have to do Step-by-step explanation: with the given QUESTION my DEAR FRND...

32.

Log x = log 0.04571 ÷ log 0.02154

Answer»

Answer:

what do we have to do

Step-by-step explanation:

with the given QUESTION my DEAR FRND...

Discussion

33.	Value of 3 • 5 -2= 2 3.
Answer» ANSWER: Your search - value of 3 • 5 -2= 2 3. - did not match any QUESTIONS .. Suggestions: Make SURE that all words are spelled correctly. Try different keywords. Try more general keywords. Try fewer keywords.

33.

Value of 3 • 5 -2= 2 3.

Answer»

ANSWER:

Your search - value of 3 • 5 -2= 2 3. - did not match any QUESTIONS ..

Suggestions:

Make SURE that all words are spelled correctly.

Try different keywords.

Try more general keywords.

Try fewer keywords.

Discussion

34.	Find the product of (ab-1) ( c-d)
Answer» ANSWER: the PRODUCT of it abc-abd-c+d

34.

Find the product of (ab-1) ( c-d)

Answer»

ANSWER:

the PRODUCT of it

abc-abd-c+d

Discussion

35.	4. Why product (- 9) * (-5) X (-6) is negative while(- 9) * (-5) (- 6) X(-1) is positive? Give reason.5. Find the sign of product if we multiply together(a) 8 positive and 5 negative integers.(b) 5 positive and 6 negative integers.(c) 7 negative and 4 positive numbers.6. Which one is greater1) or (4) × (-2X (-1)
Answer» Answer: See it's very SIMPLE when we multiply (-) with (-) we get a positive answer example- (-5)(-6) = +30 and when we multiply (-) with (+) we get a negative answer ex- (-5)(6) = -30 now as PER your question (-9)* (-5) * (-6) = (- 9 * - 5) * (-6) = +45 * (-6) = -270 and (-9)* (-5) (-6) * (-1) = (-9) * (-11) * (-1) = (-9) * ( -11 * -1) = (-9) * (11) = -99 see the answer is still negative because you have not put multiplication sign in your question between -5 and -6 could be by mistake . But if you TRY by applying multiplication sign we get a positive answer.

35.

4. Why product (- 9) * (-5) X (-6) is negative while(- 9) * (-5) (- 6) X(-1) is positive? Give reason.5. Find the sign of product if we multiply together(a) 8 positive and 5 negative integers.(b) 5 positive and 6 negative integers.(c) 7 negative and 4 positive numbers.6. Which one is greater1) or (4) × (-2X (-1)

Answer»

Answer:

See it's very SIMPLE when we multiply (-) with (-) we get a positive answer

example- (-5)*(-6) = +30

and when we multiply (-) with (+) we get a negative answer

ex- (-5)*(6) = -30

now as PER your question

(-9)* (-5) * (-6) = (- 9 * - 5) * (-6) = +45 * (-6) = -270

and

(-9)* (-5) (-6) * (-1) = (-9) * (-11) * (-1) = (-9) * ( -11 * -1) = (-9) * (11) = -99

see the answer is still negative because you have not put multiplication sign in your question between -5 and -6 could be by mistake .

But if you TRY by applying multiplication sign we get a positive answer.

Discussion

36.	Solve quadratic equation using formula and square m square - 14 m + 13 is equals to zero
Answer» ANSWER: m = 1,13 Step-by-step EXPLANATION: m^2 - 14m +13=0 => m^2 -13M - m +13=0 => m(m-13) -1(m-13)=0 =>(m-1)(m-13)=0 m=1,13 Hope it helps Please MARK BRAINLIEST

36.

Solve quadratic equation using formula and square m square - 14 m + 13 is equals to zero

Answer»

ANSWER:

m = 1,13

Step-by-step EXPLANATION:

m^2 - 14m +13=0

=> m^2 -13M - m +13=0

=> m(m-13) -1(m-13)=0

=>(m-1)(m-13)=0

m=1,13

Hope it helps

Please MARK BRAINLIEST

Discussion

37.	The sum of all the angles of a quadrilateral is equal to:
Answer» Step-by-step EXPLANATION: ANGLE of 90 DEGREE OKKK

37.

The sum of all the angles of a quadrilateral is equal to:

Answer»

Step-by-step EXPLANATION:

ANGLE of 90 DEGREE OKKK

Discussion

38.	Simplify: 1057+(970)+56+(38) find the answer
Answer» 1057+(970)+56+(38)= 2,121 *this* is *the* *ANSWER*

38.

Simplify: 1057+(970)+56+(38) find the answer

Answer»

1057+(970)+56+(38)=

2,121

this is the ANSWER

Discussion

39.	Sec A(1-sin A) sec A+tan=?
Answer» ANSWER: s8usige of t OJ SELF PAR KEL

39.

Sec A(1-sin A) sec A+tan=?

Answer»

ANSWER:

s8usige of t OJ SELF PAR KEL

Discussion

40.	state which of the following equation are linear equation in two variable and express them in the standard form ax+by+c =0 and indicate the value of a,b and c in each (1) y=2x+5 (2) 3/2x + 7/2y =1 (3)2y²+2x=2 (4) x/3 -4/y = 2
Answer» ANSWER: tkekekfkdksslflrotkrqkkscjfjfjekrititiski2983487t. i i diwi3u4u4u8318rfu H J jdiwiei4i3irjffjejd. naodjsifkdjfjdusufuueurufufdusidkeov

40.

state which of the following equation are linear equation in two variable and express them in the standard form ax+by+c =0 and indicate the value of a,b and c in each (1) y=2x+5 (2) 3/2x + 7/2y =1 (3)2y²+2x=2 (4) x/3 -4/y = 2

Answer»

ANSWER:

tkekekfkdksslflrotkrqkkscjfjfjekrititiski2983487t. i i diwi3u4u4u8318rfu H J jdiwiei4i3irjffjejd. naodjsifkdjfjdusufuueurufufdusidkeov

Discussion

41.	Plz help me in this question6(2a+3b)^2-8(2a+3b)do not spam !!!!serious questionplz help me(fast)
Answer» Step-by-step EXPLANATION: .......... oooooooooooooooooooooooooo

41.

Plz help me in this question6(2a+3b)^2-8(2a+3b)do not spam !!!!serious questionplz help me(fast)

Answer»

Step-by-step EXPLANATION:

.......... oooooooooooooooooooooooooo

Discussion

42.	श्रुती आणि कविता यांच्या आजच्या वयांची बेरीज 31 वर्षे आहे 3 वर्षापूर्वी श्रुतीचे वय कविताच्या त्या वेळच्या वयाच्या चौपट होते, तर त्या दोघींची आजची वये काय?1️⃣ श्रुती 23, कविता 82️⃣ श्रुती 24, कविता 73️⃣ श्रुती 25, कविता 64️⃣ श्रुती 22, कविता 9
Answer» ANSWER: Step-by-step explanation: TAKE free PTS....for more free points follow us [email protected] those who FOLLOWED us will be followed back

42.

श्रुती आणि कविता यांच्या आजच्या वयांची बेरीज 31 वर्षे आहे 3 वर्षापूर्वी श्रुतीचे वय कविताच्या त्या वेळच्या वयाच्या चौपट होते, तर त्या दोघींची आजची वये काय?1️⃣ श्रुती 23, कविता 82️⃣ श्रुती 24, कविता 73️⃣ श्रुती 25, कविता 64️⃣ श्रुती 22, कविता 9

Answer»

ANSWER:

Step-by-step explanation:

TAKE free PTS....for more free points follow us [email protected]

those who FOLLOWED us will be followed back

Discussion

43.	all the world's a stage , and all the women and men merely players - what are the poetic devices in this
Answer» Step-by-step explanation: Indirect SPEECH is a means of EXPRESSING the content of statements, questions or other utterances, without quoting them explicitly as is done in direct speech. For EXAMPLE, He said "I'm coming" is direct speech, whereas He said he was coming is indirect speech.

43.

all the world's a stage , and all the women and men merely players - what are the poetic devices in this

Answer»

Step-by-step explanation:

Indirect SPEECH is a means of EXPRESSING the content of statements, questions or other utterances, without quoting them explicitly as is done in direct speech. For EXAMPLE, He said "I'm coming" is direct speech, whereas He said he was coming is indirect speech.

Discussion

44.	a card is drawn at random from a pack of 52 cards find the probability that the card drawn is nither black nor red
Answer» ANSWER: 0 is the CORRECT answer

44.

a card is drawn at random from a pack of 52 cards find the probability that the card drawn is nither black nor red

Answer»

ANSWER:

0 is the CORRECT answer

Discussion

45.	Find value of mode in given data 3,4,1,4,3,6,03,3,2,6,1
Answer» ANSWER: rueueururrhrhdhhddhehehenejndnndnendnddnnddn

45.

Find value of mode in given data 3,4,1,4,3,6,03,3,2,6,1

Answer»

ANSWER:

rueueururrhrhdhhddhehehenejndnndnendnddnnddn

Discussion

46.	Express first quantity as a percentage of the 12Rs,84Rs
Answer» Step-by-step EXPLANATION: =12/84×100 =100/7% =15.71%

46.

Express first quantity as a percentage of the 12Rs,84Rs

Answer»

Step-by-step EXPLANATION:

=12/84×100

=100/7%

=15.71%

Discussion

47.	( 0, 0 ) and ( 0, a) this point in distance?ans:- a) '0' unitb) 'a' unitc) '10' unitd) 'a²' unit
Answer» ANSWER: Option B 'a' unit is the PERFECT and accurate answer Step-by-step explanation: SEE the PICTURE for the explanation ☺️ I hope it might be helpful

47.

( 0, 0 ) and ( 0, a) this point in distance?ans:- a) '0' unitb) 'a' unitc) '10' unitd) 'a²' unit

Answer»

ANSWER:

Option B 'a' unit is the PERFECT and accurate answer

Step-by-step explanation:

SEE the PICTURE for the explanation ☺️

I hope it might be helpful

Discussion

48.	35% of the students in a school of Biotechnology are majoring in Industrial Biotechnology, 20% inCancer Biology, 30% in Environmental Biotechnology, and 15% in Nano Biotechnology. If the datais represented through pie chart, then what will be the minimum angle at center (in degree)
Answer» ANSWER: TAKE a picture of your QUESTIONS and post it on the phone......... Step-by-step EXPLANATION:

48.

35% of the students in a school of Biotechnology are majoring in Industrial Biotechnology, 20% inCancer Biology, 30% in Environmental Biotechnology, and 15% in Nano Biotechnology. If the datais represented through pie chart, then what will be the minimum angle at center (in degree)

Answer»

ANSWER:

TAKE a picture of your QUESTIONS and post it on the phone.........

Step-by-step EXPLANATION:

Discussion

49.	The scale on a map is 1:20,000. What actualdistance does a length of 8 cm on the maprepresent?
Answer» ANSWER: 8 CM is your answer PLEASE

49.

The scale on a map is 1:20,000. What actualdistance does a length of 8 cm on the maprepresent?

Answer»

ANSWER:

8 CM is your answer PLEASE

Discussion

50.	If a =11π÷4find the numerical value of sin2 a - cos2 a + 2 tan a – sec2 a.
Answer» QUESTION:- if θ = $\large\rm \dfrac{11\pi}{4}$ , then FIND the NUMERICAL VALUE of $\large\rm{ \sin^2 \theta - \cos^2\theta + 2 \ \tan\theta - \sec^2 \theta}$ Answer: $\large\rm{ \theta = \dfrac{11\pi}{4} = \Bigg ( 3 \pi - \dfrac{\pi}{4} \Bigg ) }$ ❥evaluation for sinθ $\large\rm{ \sin\theta = \sin \Bigg ( 3 \pi - \dfrac{\pi}{4} \Bigg ) }$ $\large\rm = \sin \dfrac{\pi}{4}$ $\large\rm = \sin 45^{\circ}$ $\large\rm = \dfrac{1}{\sqrt{2}}$ now sinθ $\large\rm = \dfrac{1}{\sqrt{2}}$ $\large\rm{ \therefore \sin^2 \theta = \dfrac{1}{2} }$ ❥evaluation for cosθ $\large\rm{ \cos\theta = \cos \Bigg ( 3 \pi - \dfrac{\pi}{4} \Bigg ) }$ $\large\rm{ = - \cos \dfrac{\pi}{4} }$ $\large\rm{ = - \cos 45^{\circ}}$ $\large\rm{ \cos\theta = - \dfrac{1}{\sqrt{2}}}$ $\large\rm{ \therefore \cos^2 \theta = \dfrac{1}{2} }$ ❥evaluation for tanθ $\large\rm{ \tan\theta = \tan \Bigg ( 3 \pi - \dfrac{\pi}{4} \Bigg ) }$ $\large\rm{ = - \tan \dfrac{\pi}{4} }$ $\large\rm{ = - \tan 45^{\circ}}$ $\large\rm{ \tan\theta = - 1}$ $\large\rm{ \therefore 2 \tan\theta = -2}$ now REQUIRED numerical value $\large\rm{ \dfrac{1}{2} - \dfrac{1}{2} - 2 - 2}$ $\large\fbox{\rm{ = -4}}$

50.

If a =11π÷4find the numerical value of sin2 a - cos2 a + 2 tan a – sec2 a.

Answer»

QUESTION:-

if θ = $\large\rm \dfrac{11\pi}{4}$ , then FIND the NUMERICAL VALUE of

$\large\rm{ \sin^2 \theta - \cos^2\theta + 2 \ \tan\theta - \sec^2 \theta}$

Answer:

$\large\rm{ \theta = \dfrac{11\pi}{4} = \Bigg ( 3 \pi - \dfrac{\pi}{4} \Bigg ) }$

❥evaluation for sinθ

$\large\rm{ \sin\theta = \sin \Bigg ( 3 \pi - \dfrac{\pi}{4} \Bigg ) }$

$\large\rm = \sin \dfrac{\pi}{4}$

$\large\rm = \sin 45^{\circ}$

$\large\rm = \dfrac{1}{\sqrt{2}}$

now sinθ $\large\rm = \dfrac{1}{\sqrt{2}}$

$\large\rm{ \therefore \sin^2 \theta = \dfrac{1}{2} }$

❥evaluation for cosθ

$\large\rm{ \cos\theta = \cos \Bigg ( 3 \pi - \dfrac{\pi}{4} \Bigg ) }$

$\large\rm{ = - \cos \dfrac{\pi}{4} }$

$\large\rm{ = - \cos 45^{\circ}}$

$\large\rm{ \cos\theta = - \dfrac{1}{\sqrt{2}}}$

$\large\rm{ \therefore \cos^2 \theta = \dfrac{1}{2} }$

❥evaluation for tanθ

$\large\rm{ \tan\theta = \tan \Bigg ( 3 \pi - \dfrac{\pi}{4} \Bigg ) }$

$\large\rm{ = - \tan \dfrac{\pi}{4} }$

$\large\rm{ = - \tan 45^{\circ}}$

$\large\rm{ \tan\theta = - 1}$

$\large\rm{ \therefore 2 \tan\theta = -2}$

now REQUIRED numerical value

$\large\rm{ \dfrac{1}{2} - \dfrac{1}{2} - 2 - 2}$

$\large\fbox{\rm{ = -4}}$

Discussion

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