332354 + Interview Questions in Secondary School in Math

1.	(0.4/0.04+0.04/0.4) equals
Answer» Answer: 10.1 Step-by-step EXPLANATION:

1.

(0.4/0.04+0.04/0.4) equals

Answer»

Answer:

10.1

Step-by-step EXPLANATION:

Discussion

2.	2 Agro square and a rectangle house equal area Ifeach side of the Square is 18 cm and the widthof the rectangle is 12 cm find the bngth of therectangle.
Answer» ANSWER: Breadth of rectangle is 27 cm Step-by-step EXPLANATION: LET breadth of rectangle be x Side of agro Square house= 18 cm Area of Agro Square house= (side)² (18)²= 324 cm² Length of Rectangle house= 12 cm Area of Rectangle= l× b 324 cm² = 12cm × x 324cm² / 12 cm = x 27 cm= x or x = 27 cm hope it's helpful please MARK it as brainliest

2.

2 Agro square and a rectangle house equal area Ifeach side of the Square is 18 cm and the widthof the rectangle is 12 cm find the bngth of therectangle.

Answer»

ANSWER:

Breadth of rectangle is 27 cm

Step-by-step EXPLANATION:

LET breadth of rectangle be x

Side of agro Square house= 18 cm

Area of Agro Square house= (side)²

(18)²= 324 cm²

Length of Rectangle house= 12 cm

Area of Rectangle= l× b

324 cm² = 12cm × x

324cm² / 12 cm = x

27 cm= x or x = 27 cm

hope it's helpful

please MARK it as brainliest

Discussion

3.	Prove that sec theta =a^2+b^2
Answer» Step-by-step EXPLANATION: PLZ MARK me as BRAINLEST

3.

Prove that sec theta =a^2+b^2

Answer»

Step-by-step EXPLANATION:

PLZ MARK me as BRAINLEST

Discussion

4.	How many square pieces of 10cm side can be cut from a sheet of 84cm × 32cm. find the area of unused
Answer» Answer: 268 SQUARE PIECES...ACTUALLY it's 268.8 but i approxed it...

4.

How many square pieces of 10cm side can be cut from a sheet of 84cm × 32cm. find the area of unused

Answer»

Answer:

268 SQUARE PIECES...ACTUALLY it's 268.8 but i approxed it...

Discussion

5.	A bag contains 8 white and 6 black balls. A ball is drawn at random from the bag, its colour is observed and kept aside (ie, not returned in the bag). Three additional balls of the same colour as observed are put in the bag. If now two balls are drawn simultaneously at random from the bag, then the probability that these two balls are of different colours, is:
Answer» Given : A bag contains 8 white and 6 black balls. A ball is DRAWN at random from the bag, its colour is OBSERVED and kept aside (ie, not returned in the bag). Three additional balls of the same colour as observed are put in the bag. now two balls are drawn simultaneously at random from the bag, To Find : the probability that these two balls are of DIFFERENT COLOURS 7/25 2/5 18/35 4/15 Solution: White = 8 Black = 6 Total = 14 case 1 : White taken out probability = 8/14 = 4/7 Now white = 8 - 1 + 3 = 10 Black = 6 Total = 16 WB + BW = (10/16)(6/15) + (6/16)(10/15) = 120/240 = 1/2 Probability = (4/7) (1/2) = 2/7 case 2 : black taken out probability = 6/14 = 3/7 Now black = 6 - 1 + 3 = 8 White = 8 Total = 16 WB + BW = (8/16)(8/15) + (8/16)(8/15) = 128/240 = 8/15 Probability = (3/7) (8/15) = 8/35 2/7 + 8/35 = (10 + 8)/35 = 18/35 18/35 is the probability Learn More: A PAIR of fair dice is thrown independently four times. The probability ... brainly.in/question/21757712 A pair of dice is thrown together till a sum of 4 or 8 is obtained. The ... brainly.in/question/14777415

5.

A bag contains 8 white and 6 black balls. A ball is drawn at random from the bag, its colour is observed and kept aside (ie, not returned in the bag). Three additional balls of the same colour as observed are put in the bag. If now two balls are drawn simultaneously at random from the bag, then the probability that these two balls are of different colours, is:

Answer»

Given : A bag contains 8 white and 6 black balls.

A ball is DRAWN at random from the bag, its colour is OBSERVED and kept aside (ie, not returned in the bag).

Three additional balls of the same colour as observed are put in the bag.

now two balls are drawn simultaneously at random from the bag,

To Find : the probability that these two balls are of DIFFERENT COLOURS

7/25

2/5

18/35

4/15

Solution:

White = 8

Black = 6

Total = 14

case 1 : White taken out probability = 8/14 = 4/7

Now white = 8 - 1 + 3 = 10

Black = 6

Total = 16

WB + BW

= (10/16)(6/15) + (6/16)(10/15)

= 120/240

= 1/2

Probability = (4/7) (1/2) = 2/7

case 2 : black taken out probability = 6/14 = 3/7

Now black = 6 - 1 + 3 = 8

White = 8

Total = 16

WB + BW

= (8/16)(8/15) + (8/16)(8/15)

= 128/240

= 8/15

Probability = (3/7) (8/15) = 8/35

2/7 + 8/35

= (10 + 8)/35

= 18/35

18/35 is the probability

Learn More:

A PAIR of fair dice is thrown independently four times. The probability ...

brainly.in/question/21757712

A pair of dice is thrown together till a sum of 4 or 8 is obtained. The ...

brainly.in/question/14777415

Discussion

6.	Find the value of a so that the point (3, a) lies on the line represented by 2x – 3y = 5
Answer» SORRY i dont no please answer this question↓↓↓ What geothermal Icelandic SITE has the same NAME as a 1980 movie? A. Xanadu B. The Shining C. HEAVEN’s Gate D. The BLUE Lagoon

6.

Find the value of a so that the point (3, a) lies on the line represented by 2x – 3y = 5

Answer»

SORRY i dont no

please answer this question↓↓↓

What geothermal Icelandic SITE has the same NAME as a 1980 movie?

A. Xanadu

B. The Shining

C. HEAVEN’s Gate

D. The BLUE Lagoon

Discussion

7.	Dually likelyJUIMer 5 on the top face ishless likelyd) both a, cThe cd) impossible3b)2215ected over722a) 226d)][b) less likelyleterminea) more likelye) certainb) less likelyd) equally likelya) certainc) more likelyhey haverdingly.1Dequally likelyb) more likely[ ]a certaincequally likelyd) less likelyf such[ ]3b)7750es arec)5025d)125[ ]63b)at it11et411125a) fiore likelyA bag contains 12 pencils, 3 sharpners and 7 pens. The probability of drawing a pencil from the bag isThe event of “Sri Chaitanya Educational Institution is greatest institution in Asia continent is[ ]The event of both teams in a match winning the toss isA mathematics book contain 250 pages. If a page is selected at random, then the probability that thenumber on the page selected is a perfect square isThere are 5 books and 6 pens in a bag. If one item is drawn at random, then the probability of pickedone is a book isThe event of getting a tail (or) head when a coin is tossed isarsity Education Management Pvt. Ltd.
Answer» Dually likely JUI Mer 5 on the top face is hless likely d) both a, c The c d) impossible 3 b) 22 15 ected over 7 22 a) 22 6 d) ] [ b) LESS likely letermine a) more likely e) certain b) less likely d) equally likely a) certain c) more likely hey have rdingly. 1 Dequally likely b) more likely [ ] a certain cequally likely d) less likely f such [ ] 3 b) 7 7 50 es are c) 50 25 d) 125 [ ] 6 3 b) at it 11 et 4 11 125 a) fiore likely A bag contains 12 pencils, 3 sharpners and 7 pens. The probability of drawing a pencil from the bag is The event of “Sri Chaitanya Educational Institution is greatest institution in Asia continent is[ ] The event of both teams in a match winning the toss is A mathematics book contain 250 PAGES. If a page is selected at random, then the probability that the number on the page selected is a perfect square is There are 5 books and 6 pens in a bag. If one item is drawn at random, then the probability of picked one is a book is The event of getting a tail (or) head when a coin is tossed is arsity Education Management PVT. Ltd.

7.

Dually likelyJUIMer 5 on the top face ishless likelyd) both a, cThe cd) impossible3b)2215ected over722a) 226d)][b) less likelyleterminea) more likelye) certainb) less likelyd) equally likelya) certainc) more likelyhey haverdingly.1Dequally likelyb) more likely[ ]a certaincequally likelyd) less likelyf such[ ]3b)7750es arec)5025d)125[ ]63b)at it11et411125a) fiore likelyA bag contains 12 pencils, 3 sharpners and 7 pens. The probability of drawing a pencil from the bag isThe event of “Sri Chaitanya Educational Institution is greatest institution in Asia continent is[ ]The event of both teams in a match winning the toss isA mathematics book contain 250 pages. If a page is selected at random, then the probability that thenumber on the page selected is a perfect square isThere are 5 books and 6 pens in a bag. If one item is drawn at random, then the probability of pickedone is a book isThe event of getting a tail (or) head when a coin is tossed isarsity Education Management Pvt. Ltd.

Answer»

Dually likely

JUI

Mer 5 on the top face is

hless likely

d) both a, c

The c

d) impossible

3

b)

22

15

ected over

7

22

a) 22

6

d)

]

[

b) LESS likely

letermine

a) more likely

e) certain

b) less likely

d) equally likely

a) certain

c) more likely

hey have

rdingly.

1

Dequally likely

b) more likely

[ ]

a certain

cequally likely

d) less likely

f such

[ ]

3

b)

7

50

es are

c)

50

25

d)

125

[ ]

6

3

b)

at it

11

et

4

11

125

a) fiore likely

A bag contains 12 pencils, 3 sharpners and 7 pens. The probability of drawing a pencil from the bag is

The event of “Sri Chaitanya Educational Institution is greatest institution in Asia continent is[ ]

The event of both teams in a match winning the toss is

A mathematics book contain 250 PAGES. If a page is selected at random, then the probability that the

number on the page selected is a perfect square is

There are 5 books and 6 pens in a bag. If one item is drawn at random, then the probability of picked

one is a book is

The event of getting a tail (or) head when a coin is tossed is

arsity Education Management PVT. Ltd.

Discussion

8.	An exterior angle of a triangle is 110 , and one of the interior opposite angleis 30, find the other interior angle a) 80 b) 70 c) 60 d) 40
Answer» ANSWER: answer is 70 Step-by-step EXPLANATION: because the ANGLE of TRIANGLE is 180

8.

An exterior angle of a triangle is 110 , and one of the interior opposite angleis 30, find the other interior angle a) 80 b) 70 c) 60 d) 40

Answer»

ANSWER:

answer is 70

Step-by-step EXPLANATION:

because the ANGLE of TRIANGLE is 180

Discussion

9.	Determine the LCM of 20 , 25 and 50 .
Answer» ANSWER: HOPE it helps Step-by-step EXPLANATION: l.c.m (20,25,50)= 100 Mark me BRAINLIEST

9.

Determine the LCM of 20 , 25 and 50 .

Answer»

ANSWER:

HOPE it helps

Step-by-step EXPLANATION:

l.c.m (20,25,50)= 100

10.	Find the median of the following data: 21, 14, 6, 29, 18, 13, 19, 30, 9, and 12?
Answer» Answer: First of all, we need to arrange the data in an ascending order. Thus, the data is PRESENTED below as: 15, 35, 43, 46, 48, 49, 50, 55 N = 8 Since the number of items in the series is even, thus the following formula is used to calculate the median. Median= SIZE of ( N 2 )th item + Size of ( N 2 +1)th item 2 = Size of ( 8 2 )th item + Size of ( 8 2 +1)th item 2 = Size of 4th item + Size of 5th item 2 = 46+48 2 =47 Thus, Median is 47. Step-by-step explanation: pls MARK me brainlist pls pls mark me brainlist pls

Find the median of the following data: 21, 14, 6, 29, 18, 13, 19, 30, 9, and 12?

Answer»

Answer:

First of all, we need to arrange the data in an ascending order. Thus, the data is PRESENTED below as:

15, 35, 43, 46, 48, 49, 50, 55

N = 8

Since the number of items in the series is even, thus the following formula is used to calculate the median.

Median=

SIZE of (

N

2

)th item + Size of (

N

2

+1)th item

2

=

Size of (

8

2

)th item + Size of (

8

2

+1)th item

2

=

Size of 4th item + Size of 5th item

2

=

46+48

2

=47

Thus, Median is 47.

Step-by-step explanation:

pls MARK me brainlist pls

pls mark me brainlist pls

Discussion

11.	A contractor can finish a work in 8 days with certain number of men at work. If hehas 5 more men at work, the work can be completed in 7 days. How many men wereoriginally there?
Answer» ANSWER: Let there be x men at the BEGINING LESS men, more days ∴ 15:9::x:(x−6) ⇒ 15(x−6)=9x ⇒ 6x=90 ⇒ x=15 Step-by-step EXPLANATION: mark me the brainiest

11.

A contractor can finish a work in 8 days with certain number of men at work. If hehas 5 more men at work, the work can be completed in 7 days. How many men wereoriginally there?

Answer»

ANSWER:

Let there be x men at the BEGINING LESS men, more days

∴ 15:9::x:(x−6) ⇒ 15(x−6)=9x

⇒ 6x=90 ⇒ x=15

Step-by-step EXPLANATION:

mark me the brainiest

Discussion

12.	मुझे कोई बात करना चाहता हैmy no 8102707702
Answer» ANSWER: $\Huge \boxed{\mathfrak{Hey\:there\:Spamgod\:here}}\\ \\ \\ \huge\boxed{\mathtt{You\:are\:trolled\:my\:friend}}$

12.

मुझे कोई बात करना चाहता हैmy no 8102707702

Answer»

ANSWER:

$\Huge \boxed{\mathfrak{Hey\:there\:Spamgod\:here}}\\ \\ \\ \huge\boxed{\mathtt{You\:are\:trolled\:my\:friend}}$

Discussion

13.	4 What percent of 7 litres is 70 millilitres ?(2) 1%(3) 10%(1) 0.1%(4) 0.01%
Answer» ANSWER: 3 10% Step-by-step EXPLANATION: YES the answer is 10%

13.

4 What percent of 7 litres is 70 millilitres ?(2) 1%(3) 10%(1) 0.1%(4) 0.01%

Answer»

ANSWER:

3 10%

Step-by-step EXPLANATION:

YES the answer is 10%

Discussion

14.	एक सामान्य वर्ष का अंतिम दिन कौन सा नही होसकता है?a) सोमवार(b) रविवारc) बुधवार(d) शुक्रवारn
Answer» ANSWER: MARK as brainliest a) somvaar or MONDAY

14.

एक सामान्य वर्ष का अंतिम दिन कौन सा नही होसकता है?a) सोमवार(b) रविवारc) बुधवार(d) शुक्रवारn

Answer»

ANSWER:

MARK as brainliest

a) somvaar or MONDAY

Discussion

15.	In a triangle ABC, medians AD and BE are drawn. If AD = 4, ∠DAB = π/6 and ∠ABE =π/3, then the area of the ΔABC is(a) 8/3(b) 16/3(c) 32/3√3(d) 64/3
Answer» QUESTION ⤵️ $\cos( \frac{\pi}{7} ) \times \cos( \frac{2\pi}{7} ) \times \cos( \frac{4\pi}{7} )$ Solution ⤵️ $\cos( \frac{\pi}{7} ) \times \cos( \frac{2\pi}{7} ) \times \cos( \frac{4\pi}{7} )$ $\implies \cos(20. \frac{\pi}{7} ) \times \cos( {2}^{1}. \frac{\pi}{7} ) \times \cos( {2}^{2} . \frac{\pi}{7} )$ $\implies \frac{ \sin {2}^{3} ( \frac{\pi}{7} ) }{ {2}^{} . \sin \frac{\pi}{7} }$ $( \because \{ \cos(a). \cos(2a)... \cos( {2}^{n - 1}a ) = \frac{ \sin( {2}^{n} a) }{ {2}^{n} \sin a \: }$ $\frac{ \sin(8 \frac{\pi}{7} ) }{8. \sin( \frac{\pi}{7} ) } = \frac{ \sin(\pi + \frac{\pi}{7} ) }{8. \sin( \frac{\pi}{7} ) }$ $\frac{ \sin(8 \frac{\pi}{7} ) }{8. \sin( \frac{\pi}{7} ) } = \frac{ \sin(\pi + \frac{\pi}{7} ) }{8. \sin( \frac{\pi}{7} ) } = \frac{ - \sin( \frac{\pi}{7} ) }{8. \sin( \frac{\pi}{7} ) }$ $\implies \frac{ - 1}{8}$ $\small{\textbf{\textsf{{\color{navy}\:{Hope}}\:{\purple{it}}\:{\pink{helps}}\:{\color{pink}{you!!♡♡}}}}}$

15.

In a triangle ABC, medians AD and BE are drawn. If AD = 4, ∠DAB = π/6 and ∠ABE =π/3, then the area of the ΔABC is(a) 8/3(b) 16/3(c) 32/3√3(d) 64/3

Answer»

QUESTION ⤵️

$\cos( \frac{\pi}{7} ) \times \cos( \frac{2\pi}{7} ) \times \cos( \frac{4\pi}{7} )$

Solution ⤵️

$\cos( \frac{\pi}{7} ) \times \cos( \frac{2\pi}{7} ) \times \cos( \frac{4\pi}{7} )$

$\implies \cos(20. \frac{\pi}{7} ) \times \cos( {2}^{1}. \frac{\pi}{7} ) \times \cos( {2}^{2} . \frac{\pi}{7} )$

$\implies \frac{ \sin {2}^{3} ( \frac{\pi}{7} ) }{ {2}^{} . \sin \frac{\pi}{7} }$

$( \because \{ \cos(a). \cos(2a)... \cos( {2}^{n - 1}a ) = \frac{ \sin( {2}^{n} a) }{ {2}^{n} \sin a \: }$

$\frac{ \sin(8 \frac{\pi}{7} ) }{8. \sin( \frac{\pi}{7} ) } = \frac{ \sin(\pi + \frac{\pi}{7} ) }{8. \sin( \frac{\pi}{7} ) }$

$\frac{ \sin(8 \frac{\pi}{7} ) }{8. \sin( \frac{\pi}{7} ) } = \frac{ \sin(\pi + \frac{\pi}{7} ) }{8. \sin( \frac{\pi}{7} ) } = \frac{ - \sin( \frac{\pi}{7} ) }{8. \sin( \frac{\pi}{7} ) }$

$\implies \frac{ - 1}{8}$

$\small{\textbf{\textsf{{\color{navy}\:{Hope}}\:{\purple{it}}\:{\pink{helps}}\:{\color{pink}{you!!♡♡}}}}}$

Discussion

16.	Hy what is herons formula
Answer» Answer: HERON's FORMULA gives area of triangle when the LENGTH of all three sides are known. The formula was NAMED after HERO of Alexandria.

16.

Hy what is herons formula

Answer»

Answer:

HERON's FORMULA gives area of triangle when the LENGTH of all three sides are known. The formula was NAMED after HERO of Alexandria.

Discussion

17.	If cos a + 2cos b + cos c = 2 then a, b, c are in(a) 2b = a + c(b) b2 = a × c(c) a = b = c(d) None of these
Answer» Answer: 2b = a + c Step-by-step EXPLANATION: HOPE it HELPS you

17.

If cos a + 2cos b + cos c = 2 then a, b, c are in(a) 2b = a + c(b) b2 = a × c(c) a = b = c(d) None of these

Answer»

Answer:

2b = a + c

Step-by-step EXPLANATION:

HOPE it HELPS you

Discussion

18.	Y= sin²x then dy/dx is ?1. sinx2. 2sinx3. 2sinxcosx4.cosx
Answer» Answer: You would use the CHAIN rule to solve this. To do that, you'll have to determine what the "outer" function is and what the "inner" function composed in the outer function is. In this case, sin(x) is the inner function that is composed as PART of the sin2(x). So, mathematically, the chain rule is: F'(x)=f'(g(x))(g'(x)) where g(x) is inner function and f(g(x)) is outer one. 1) The derivative of the outer function(with the inside function LEFT alone) is: f'((sin(x))^2) = 2sin(x) 2) The derivative of the inner function: g'(sin(x)) =cos(x) Combining the two steps through multiplication to get the derivative as : 2sin(x)cos(x). Have a nice day!!

18.

Y= sin²x then dy/dx is ?1. sinx2. 2sinx3. 2sinxcosx4.cosx

Answer»

Answer:

You would use the CHAIN rule to solve this. To do that, you'll have to determine what the "outer" function is and what the "inner" function composed in the outer function is.

In this case,

sin(x)

is the inner function that is composed as PART of the

sin2(x).

So, mathematically, the chain rule is:

F'(x)=f'(g(x))(g'(x)) where g(x) is inner function and f(g(x)) is outer one.

1) The derivative of the outer function(with the inside function LEFT alone) is:

f'((sin(x))^2) = 2sin(x)

2) The derivative of the inner function:

g'(sin(x)) =cos(x)

Combining the two steps through multiplication to get the derivative as :

2sin(x)cos(x).

Have a nice day!!

Discussion

19.	What happens to the force between two objects, if(i) the mass of one object is doubled ?(ii) the distance between the objects is doubles and tripled ?(iii) the masses of both objects are doubled ?
Answer» *Hello* *Brainly user!!♡ ☆I hope* *this* *may help u in* *your* *studies* ☆. *⋆❥ǫᴜᵉՏㄒɨօຖ⋆* *What happens to the force between two objects, if* (i) *the MASS of one object is doubled ?* *Ans* (i) If the mass of one of the objects is doubled, then the force of gravity between them is doubled. Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in WEAKER gravitational forces. (ii) *the distance between the objects is doubled and tripled ? Ans* (ii) If the distance between the two objects is tripled, then THUS, the gravitational force between the two objects becomes one-ninth. (iii) If the masses of both the objects are doubled, then Thus, the gravitational force between the two objects becomes 4 times. (*iii) the masses of both objects are doubled ?* *Ans* (*iii) If the mass of both of the objects is doubled, then the force of gravity between them is QUADRUPLED; and so on. Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. 《Refer* to attachment if needed》 #Be Brainly __@Ariana2009⚘⚡

19.

What happens to the force between two objects, if(i) the mass of one object is doubled ?(ii) the distance between the objects is doubles and tripled ?(iii) the masses of both objects are doubled ?

Answer»

Hello Brainly user!!♡

☆I hope this may help u in your studies ☆.

⋆❥ǫᴜᵉՏㄒɨօຖ⋆

What happens to the force between two objects, if

(i) the MASS of one object is doubled ?

Ans (i) If the mass of one of the objects is doubled, then the force of gravity between them is doubled. Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in WEAKER gravitational forces.

(ii) the distance between the objects is doubled and tripled ?

Ans (ii) If the distance between the two objects is tripled, then THUS, the gravitational force between the two objects becomes one-ninth. (iii) If the masses of both the objects are doubled, then Thus, the gravitational force between the two objects becomes 4 times.

(iii) the masses of both objects are doubled ?

Ans (iii) If the mass of both of the objects is doubled, then the force of gravity between them is QUADRUPLED; and so on. Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces.

《Refer to attachment if needed》

#Be Brainly

__@Ariana2009⚘⚡

Discussion

20.	Simplify (7+3√2) (7-3√2)
Answer» Step-by-step EXPLANATION: (7+3√2) (7-3√2) 7² - (3√2) ² 49 - 18 31 ANS

20.

Simplify (7+3√2) (7-3√2)

Answer»

Step-by-step EXPLANATION:

(7+3√2) (7-3√2)

7² - (3√2) ²

49 - 18

31 ANS

Discussion

21.	Please any one solve this problem.
Answer» Step-by-step explanation: 19/5 + 8/5 + X = 15/2 x = (75 - 16 - 38) / 10 = 21/10 $x = 2 \frac{1}{10}$

21.

Please any one solve this problem.

Answer»

Step-by-step explanation:

19/5 + 8/5 + X = 15/2

x = (75 - 16 - 38) / 10

= 21/10

$x = 2 \frac{1}{10}$

Discussion

22.	If tan x = tan α , then the general solution of the equation is(a) nπ – α(b) 2nπ- α(c) nπ + α(d) 2nπ + α
Answer» Answer: d) 2nπ + a is the answer Step-by-step explanation: 30-Dec-2020 — In ΔABC, if cosA+2cosB+cosC=2andcot(A2)+cot(C2)=λcot(B2), then find the value of λ. JEE main admit card 2021 released, know step-by-step process to download the JEE Main 2021 admit card & Know KEY details RELATED to JEE Main exam admit card. UP BOARD CLASS 12 exam 2021 from 24th April to 12th MAY 2021.

22.

If tan x = tan α , then the general solution of the equation is(a) nπ – α(b) 2nπ- α(c) nπ + α(d) 2nπ + α

Answer»

Answer:

d) 2nπ + a is the answer

Step-by-step explanation:

30-Dec-2020 — In ΔABC, if cosA+2cosB+cosC=2andcot(A2)+cot(C2)=λcot(B2), then find the value of λ. JEE main admit card 2021 released, know step-by-step process to download the JEE Main 2021 admit card & Know KEY details RELATED to JEE Main exam admit card. UP BOARD CLASS 12 exam 2021 from 24th April to 12th MAY 2021.

Discussion

23.	(49)7  (72)5 is equal to, a)7 b)49 c) 6 d) None of these
Answer» Step-by-step EXPLANATION: b) 49 is RIGHT ANSWER of your QUESTIONS

23.

(49)7  (72)5 is equal to, a)7 b)49 c) 6 d) None of these

Answer»

Step-by-step EXPLANATION:

b) 49 is RIGHT ANSWER of your QUESTIONS

Discussion

24.	The function f defined by,2x, if x is rationalX+27, if x is irrationalcontinuous only at(a) x = 0(b) x= 3(c) x=6(d) x=9
Answer» Answer: (c) x=6 Step-by-step EXPLANATION: What Are Natural ResourcesNatural resources are resources that EXIST without any actions of humankind. This includes all valued characteristics such as commercial and industrial USE, AESTHETIC value, scientific interest and cultural value. On Earth, it includes sunlight, atmosphere, water, land along with all vegetation, and ANIMAL life.

24.

The function f defined by,2x, if x is rationalX+27, if x is irrationalcontinuous only at(a) x = 0(b) x= 3(c) x=6(d) x=9

Answer»

Answer:

(c) x=6

Step-by-step EXPLANATION:

What Are Natural ResourcesNatural resources are resources that EXIST without any actions of humankind. This includes all valued characteristics such as commercial and industrial USE, AESTHETIC value, scientific interest and cultural value. On Earth, it includes sunlight, atmosphere, water, land along with all vegetation, and ANIMAL life.

Discussion

25.	क. 'खिंच गई गंध की लकीर-सी' द्वारा कवि क्या कहना चाहते हैं ?ख. फूलों के रंगों से कवि को 'रंगों की बरसात' का अनुभव क्यों होने लगा?ग. फूल ने अपनी किन-किन कठिनाइयों का वर्णन किया?घ. 'सूरज को तपा है पूरी आयु एक पाँव पर' का भावार्थ क्या है?ङ तुमसे भी रँग जाती एक ऋतु- फूल ने कवि से ऐसा क्यों कहा?च./इस कविता द्वारा कवि क्या संदेश देना चाहते हैं?
Answer» ANSWER: i do no hindi Step-by-step EXPLANATION: so i CANT UNDERSTAND

25.

क. 'खिंच गई गंध की लकीर-सी' द्वारा कवि क्या कहना चाहते हैं ?ख. फूलों के रंगों से कवि को 'रंगों की बरसात' का अनुभव क्यों होने लगा?ग. फूल ने अपनी किन-किन कठिनाइयों का वर्णन किया?घ. 'सूरज को तपा है पूरी आयु एक पाँव पर' का भावार्थ क्या है?ङ तुमसे भी रँग जाती एक ऋतु- फूल ने कवि से ऐसा क्यों कहा?च./इस कविता द्वारा कवि क्या संदेश देना चाहते हैं?

Answer»

ANSWER:

i do no hindi

Step-by-step EXPLANATION:

so i CANT UNDERSTAND

Discussion

26.	022 Which of the following options show two equivalent ratios of 24: 8?(1) . 18:6; 15:5 (2) 12:3; 6:4(31 30:5; 40:10 (4) 8:2; 27:9
Answer» ANSWER: MARK as brainiliest Step-by-step EXPLANATION: bjbjjhhjbhujnn

26.

022 Which of the following options show two equivalent ratios of 24: 8?(1) . 18:6; 15:5 (2) 12:3; 6:4(31 30:5; 40:10 (4) 8:2; 27:9

Answer»

ANSWER:

MARK as brainiliest

Step-by-step EXPLANATION:

bjbjjhhjbhujnn

Discussion

27.	If the discriminat (D) of 3x2 +2x +a =0 is double of the discriminat x2 - 4x+2 =0 then find the value of a
Answer» ANSWER: a = -1 Step-by-step explanation: 3x² + 2x + a= 0, a= 3, B= 2, c= a x²- 4x + 2= 0 , A=1, B= -4, C= 2 b²- 4ac = 2(B²- 4AC)---(given) (2)²- 4 x 3 x a = 2[(-4)²- 4 x 1 x 2] 4-12A =2 (16-8) 4-12a =2x 8 4-12a = 16 -12a= 16-4 -12a = 12 a = -1

27.

If the discriminat (D) of 3x2 +2x +a =0 is double of the discriminat x2 - 4x+2 =0 then find the value of a

Answer»

ANSWER:

a = -1

Step-by-step explanation:

3x² + 2x + a= 0, a= 3, B= 2, c= a

x²- 4x + 2= 0 , A=1, B= -4, C= 2

b²- 4ac = 2(B²- 4AC)---(given)

(2)²- 4 x 3 x a = 2[(-4)²- 4 x 1 x 2]

4-12A =2 (16-8)

4-12a =2x 8

4-12a = 16

-12a= 16-4

-12a = 12

a = -1

Discussion

28.	For any square matrix Avalue of AA^-1 is1. A2. indentity matrix3. zero matrix4. symmetric matrix
Answer» ANSWER: r8e7e7r7iddi8d8d8d8r8e8r8d88d

28.

For any square matrix Avalue of AA^-1 is1. A2. indentity matrix3. zero matrix4. symmetric matrix

Answer»

ANSWER:

r8e7e7r7iddi8d8d8d8r8e8r8d88d

Discussion

29.	Problem 1 (10 points): A T-year par rate c(T) is the yield to maturity for a par bond (i.e., for a bond with the market price
Answer» ANSWER: hiehuhjwojlabshjksyjsonsginwyfsjvsnsnhe

29.

Problem 1 (10 points): A T-year par rate c(T) is the yield to maturity for a par bond (i.e., for a bond with the market price

Answer»

ANSWER:

hiehuhjwojlabshjksyjsonsginwyfsjvsnsnhe

Discussion

30.	Solve by identity - a²- b² = (a+b)(a-b)1) 51² - 49²2) (1.02)² - (0.98)²
Answer» 1) (51-49) (51+49) (2). ( 100) 200 ANS

30.

Solve by identity - a²- b² = (a+b)(a-b)1) 51² - 49²2) (1.02)² - (0.98)²

Answer»

1) (51-49) (51+49)

(2). ( 100)

200 ANS

Discussion

31.	please ans this que....
Answer» Answer: 9:5*14580+325/100 =26,247.26

31.

please ans this que....

Answer»

Answer:

9:5*14580+325/100

=26,247.26

Discussion

32.	the area of a triangle is the same as area in of the square.if the area of a square is 100 cm² and the corresponding height of triangle is 5 cm.then the base of the triangle is
Answer» Area of triangle = Area of square = 100 cm^2 Area of Triangle = 1/2 × Base × Height 100 = 1/2 × B × 5 100 = 5/2 B B = 100 × 2/5 B = 40 cm Hope this HELPS. PLEASE mark as BRAINIEST

32.

the area of a triangle is the same as area in of the square.if the area of a square is 100 cm² and the corresponding height of triangle is 5 cm.then the base of the triangle is

Answer»

Area of triangle = Area of square = 100 cm^2

Area of Triangle = 1/2 × Base × Height

100 = 1/2 × B × 5

100 = 5/2 B

B = 100 × 2/5

B = 40 cm

Hope this HELPS. PLEASE mark as BRAINIEST

Discussion

33.	3. Two coins are tossed 400 times and we gettwo heads: 112 times,one head: 160 times:O head: 128 times.When two colns are tossed at random, what is the probabiley of getting heads?
Answer» 3. Two coins are tossed 400 times and we get two heads: 112 times, one HEAD: 160 times: O head: 128 times. When two colns are tossed at RANDOM, what is the PROBABILEY of ggetting heads

33.

3. Two coins are tossed 400 times and we gettwo heads: 112 times,one head: 160 times:O head: 128 times.When two colns are tossed at random, what is the probabiley of getting heads?

Answer»

3. Two coins are tossed 400 times and we get

two heads: 112 times,

one HEAD: 160 times:

O head: 128 times.

When two colns are tossed at RANDOM, what is the PROBABILEY of ggetting heads

Discussion

34.	82.1 Complete the tableClassesTally MarkFaquency CA67 CNo of sIN ME12-1313-1414-1515-1616-1717-18N = [f=50
Answer» Step-by-step EXPLANATION: heudue and have to be t JI

34.

82.1 Complete the tableClassesTally MarkFaquency CA67 CNo of sIN ME12-1313-1414-1515-1616-1717-18N = [f=50

Answer»

Step-by-step EXPLANATION:

heudue and have to be t JI

Discussion

35.	फाइंड द एरिया इन स्क्वायर मीटर ऑफ द पैरेललोग्राम व्होस बेस एंड एल्टीट्यूड आईएस 8.4 डीएम एंड एल्टीट्यूड 75 सेंटीमीटर
Answer» ANSWER: $\Huge \boxed{\mathfrak{Hey\:there\:Spamgod\:here}}\\ \\ \\ \huge\boxed{\mathtt{You\:are\:trolled\:my\:friend}}$

35.

फाइंड द एरिया इन स्क्वायर मीटर ऑफ द पैरेललोग्राम व्होस बेस एंड एल्टीट्यूड आईएस 8.4 डीएम एंड एल्टीट्यूड 75 सेंटीमीटर

Answer»

ANSWER:

$\Huge \boxed{\mathfrak{Hey\:there\:Spamgod\:here}}\\ \\ \\ \huge\boxed{\mathtt{You\:are\:trolled\:my\:friend}}$

Discussion

36.	Prove that the sum of the internal angles of a triangle is 180°
Answer» ANSWER: here's your answer thank you

36.

Prove that the sum of the internal angles of a triangle is 180°

Answer»

ANSWER:

here's your answer

thank you

Discussion

37.	1 जिले की जनसंख्या 296000 है जिनमें से 166000 पुरुष है कुल जनसंख्या का 50% शिक्षा दें यदि कुल पुरुषों का 70% शिक्षित हो तो शिक्षित स्त्रियों की संख्या कितनी है
Answer» Step-by-step EXPLANATION: HTTP://mathd.in/video/percentage-part-8-%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A4%A4%E0%A4%BF%E0%A4%B6%E0%A4%A4%E0%A4%A4%E0%A4%BE/

37.

1 जिले की जनसंख्या 296000 है जिनमें से 166000 पुरुष है कुल जनसंख्या का 50% शिक्षा दें यदि कुल पुरुषों का 70% शिक्षित हो तो शिक्षित स्त्रियों की संख्या कितनी है

Answer»

Step-by-step EXPLANATION:

HTTP://mathd.in/video/percentage-part-8-%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A4%A4%E0%A4%BF%E0%A4%B6%E0%A4%A4%E0%A4%A4%E0%A4%BE/

Discussion

38.	Mushthaque bought 3 m 20 cm cloth for his trouser. Find the total length of cloth bought by him.
Answer» Answer: 320 CM Step-by-step explanation: 1m=100 cm 3into 100 =300 cm and 20 cm 300+20=320 cm

38.

Mushthaque bought 3 m 20 cm cloth for his trouser. Find the total length of cloth bought by him.

Answer»

Answer:

320 CM

Step-by-step explanation:

1m=100 cm

3into 100 =300 cm

and 20 cm

300+20=320 cm

Discussion

39.	8339 is exactly divisible by 11 then find
Answer» Step-by-step EXPLANATION: HOPE it HELPS you . MARK me as BRAINILIST

39.

8339 is exactly divisible by 11 then find

Answer»

Step-by-step EXPLANATION:

HOPE it HELPS you . MARK me as BRAINILIST

Discussion

40.	1 point10) Which of the following isimproper fraction *O 11/5O 4/8O 5/10O 15/16
Answer» Answer: 11/5 Step-by-step EXPLANATION: as the larger number is on the numerator and the smaller at the DINOMINATOR

40.

1 point10) Which of the following isimproper fraction *O 11/5O 4/8O 5/10O 15/16

Answer»

Answer:

11/5

Step-by-step EXPLANATION:

as the larger number is on the numerator and the smaller at the DINOMINATOR

Discussion

41.	O Simplify the expression :6 x 0.6 x 0.06 x 0.006 X 60(1) 0.7566(2) 0.07776(3) 0.89760.77764The average age of 6 students is 11 years. If two more students of age 14
Answer» Answer: 0.07776 Step-by-step EXPLANATION: MULTIPLY all equation POINT के नीचे point को रखे

41.

O Simplify the expression :6 x 0.6 x 0.06 x 0.006 X 60(1) 0.7566(2) 0.07776(3) 0.89760.77764The average age of 6 students is 11 years. If two more students of age 14

Answer»

Answer:

0.07776

Step-by-step EXPLANATION:

MULTIPLY all equation

POINT के नीचे point को रखे

Discussion

42.	3/8 + -5/7 which properties of rational numbers are used here
Answer» ANSWER: CLOSURE PROPERTY USED in this

42.

3/8 + -5/7 which properties of rational numbers are used here

Answer»

ANSWER:

CLOSURE PROPERTY USED in this

Discussion

43.	Draw a circle passing through vertices of right angled triangle whose three sides are in AP. such that their sum is 24 also draw the tangent to the Circle at any point on it. without using centre
Answer» CAn't UNDERSTAND PROPERY

Discussion

44.	Solve and verify 6x+5=2x+ 17
Answer» Answer: X=3 Step-by-step EXPLANATION: can ANYONE JOIN being so bored id 77420969756 PWD 5n2fiE

44.

Solve and verify 6x+5=2x+ 17

Answer»

Answer:

X=3

Step-by-step EXPLANATION:

can ANYONE JOIN being so bored id 77420969756 PWD 5n2fiE

Discussion

45.	The value of cos(π/7) * cos(2π/7) * cos(4π/7) is
Answer» Answer: ❀ʀᴇǫᴜɪʀᴇᴅ ᴀɴsᴡᴇʀ: ACCORDING to this question Given that $cos(\frac{\pi}{7})\times cos(\frac{<klux>2</klux>\pi}{7})\times cos(\frac{4\pi}{7})$ Formula, SIN 2X = 2 sinx cosx cosx = $\frac{sin \: 2x}{2 \: sin \: x}$ so, $cos(\frac{\pi}{7})\times cos(\frac{2\pi}{7})\times cos(\frac{4\pi}{7})= \frac{sin \frac{2\pi}{7}\times sin \frac{4\pi}{7}\times sin \frac{8\pi}{7}\times }{2sin \frac{\pi}{7}\times 2sin \frac{2\pi}{7}\times 2sin \frac{4\pi}{7}}$ from next it is in the attachment $\sf\blue{hope \: this \: helps \: you!! \: }$

45.

The value of cos(π/7) * cos(2π/7) * cos(4π/7) is

Answer»

Answer:

❀ʀᴇǫᴜɪʀᴇᴅ ᴀɴsᴡᴇʀ:

ACCORDING to this question

Given that

$cos(\frac{\pi}{7})\times cos(\frac{<klux>2</klux>\pi}{7})\times cos(\frac{4\pi}{7})$

Formula, SIN 2X = 2 sinx cosx

cosx = $\frac{sin \: 2x}{2 \: sin \: x}$

so,

$cos(\frac{\pi}{7})\times cos(\frac{2\pi}{7})\times cos(\frac{4\pi}{7})= \frac{sin \frac{2\pi}{7}\times sin \frac{4\pi}{7}\times sin \frac{8\pi}{7}\times }{2sin \frac{\pi}{7}\times 2sin \frac{2\pi}{7}\times 2sin \frac{4\pi}{7}}$

from next it is in the attachment

$\sf\blue{hope \: this \: helps \: you!! \: }$

Discussion

46.	If 1 litre of milk has 3.5% fat then 30 litres has?
Answer» ANSWER: answer to the QUESTION is 260 ML

46.

If 1 litre of milk has 3.5% fat then 30 litres has?

Answer»

ANSWER:

answer to the QUESTION is 260 ML

Discussion

47.	Answer fast solve everything
Answer» Answer: Tere baap ka raaj h kya Pehle points bdha PHIR dungi answers SALA sirf 5 POINT ke LIYE itne saare qns hattt

47.

Answer fast solve everything

Answer»

Answer:

Tere baap ka raaj h kya

Pehle points bdha PHIR dungi answers

SALA sirf 5 POINT ke LIYE itne saare qns hattt

Discussion

48.	If the ratio of measure of two adjacent angles of a parallelogram is 1:2 find the measure of all angles of the parallelogram
Answer» Answer: In a parallelogram, adjacent ANGLES are SUPPLEMENTARY and OPPOSITE angles are equal so 1X + 2x = 180° 3x = 180° x = 180°/3 = 60° 1x = 60° 2x = 2 x 60° = 120° as the opposite angles of the parallelogram are equal the measures of all the angles are : 60°, 120° , 60°, 120° pls mark me as the brainliest

48.

If the ratio of measure of two adjacent angles of a parallelogram is 1:2 find the measure of all angles of the parallelogram

Answer»

Answer:

In a parallelogram, adjacent ANGLES are SUPPLEMENTARY and OPPOSITE angles are equal

so

1X + 2x = 180°

3x = 180°

x = 180°/3 = 60°

1x = 60°

2x = 2 x 60° = 120°

as the opposite angles of the parallelogram are equal

the measures of all the angles are : 60°, 120° , 60°, 120°

pls mark me as the brainliest

Discussion

49.	2kilos and 850 grams convert
Answer» ANSWER: if it is CONVERTED to GRAMS 2850g

49.

2kilos and 850 grams convert

Answer»

ANSWER:

if it is CONVERTED to GRAMS 2850g

Discussion

50.	What was percentage increase temperature from Wednesday to Thursday
Answer» ANSWER: PLEASE WRITE the QUESTION again

50.

What was percentage increase temperature from Wednesday to Thursday

Answer»

ANSWER:

PLEASE WRITE the QUESTION again

Discussion

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If the discriminat (D) of 3x2 +2x +a =0 is double of the discriminat x2 - 4x+2 =0 then find the value of a

For any square matrix Avalue of AA^-1 is1. A2. indentity matrix3. zero matrix4. symmetric matrix

Problem 1 (10 points): A T-year par rate c(T) is the yield to maturity for a par bond (i.e., for a bond with the market price

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the area of a triangle is the same as area in of the square.if the area of a square is 100 cm² and the corresponding height of triangle is 5 cm.then the base of the triangle is

3. Two coins are tossed 400 times and we gettwo heads: 112 times,one head: 160 times:O head: 128 times.When two colns are tossed at random, what is the probabiley of getting heads?

82.1 Complete the tableClassesTally MarkFaquency CA67 CNo of sIN ME12-1313-1414-1515-1616-1717-18N = [f=50

Prove that the sum of the internal angles of a triangle is 180°

Mushthaque bought 3 m 20 cm cloth for his trouser. Find the total length of cloth bought by him.

8339 is exactly divisible by 11 then find

1 point10) Which of the following isimproper fraction *O 11/5O 4/8O 5/10O 15/16

O Simplify the expression :6 x 0.6 x 0.06 x 0.006 X 60(1) 0.7566(2) 0.07776(3) 0.89760.77764The average age of 6 students is 11 years. If two more students of age 14

3/8 + -5/7 which properties of rational numbers are used here

Draw a circle passing through vertices of right angled triangle whose three sides are in AP. such that their sum is 24 also draw the tangent to the Circle at any point on it. without using centre

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