98971 + Interview Questions in Primary School in Math

1.	Please tell this answer fast There are 90 multiple choice questions in a test. Two marks are awarded forevery correct answer and one mark is deducted for every wrong answer. IfSahana got 60 marks in the test while she answered all the questions, then howmany questions did she answer correctly?
Answer» ong>Answer: Let the no. of correct ANSWERS be X. Therefore, no. of incorrect answers = 90 - x As per question 2 marks are awarded for correct answer and 1 mark is deducted from total SCORE if the answer is incorrect therefore, 2x - 1 (90 - x) = 60 2x - 90 + x = 60 3x - 90 = 60 3x = 90 + 60 3x = 150 x = 150 ÷ 3 50 therefore Anitha answered 50 questions. Step-by-step EXPLANATION:

1.

Please tell this answer fast There are 90 multiple choice questions in a test. Two marks are awarded forevery correct answer and one mark is deducted for every wrong answer. IfSahana got 60 marks in the test while she answered all the questions, then howmany questions did she answer correctly?

Answer»

ong>Answer:

Let the no. of correct ANSWERS be X.

Therefore, no. of incorrect answers = 90 - x

As per question

2 marks are awarded for correct answer and 1 mark is deducted from total SCORE if the answer is incorrect

therefore, 2x - 1 (90 - x) = 60

2x - 90 + x = 60

3x - 90 = 60

3x = 90 + 60

3x = 150

x = 150 ÷ 3

50

therefore Anitha answered 50 questions.

Step-by-step EXPLANATION:

Discussion

2.	Write the exponential form of : 125
Answer» ong>Step-by-step explanation: What is 125 in EXPONENTIAL form? HINT; There must be exponents in the ANSWER plz help thanks Algebra 1 Answer David Drayer · sankarankalyanam Mar 9, 2018 5 3 Explanation: 125 = 5 × 5 × 5 But 5 = 5 1 Hence 5 1 × 5 1 × 5 1 = ( 5 ) 1 + 1 + 1 = 5 3 5 3 is in exponential form

2.

Write the exponential form of : 125

Answer»

ong>Step-by-step explanation:

What is 125 in EXPONENTIAL form?

HINT; There must be exponents in the ANSWER plz help thanks

Algebra

1 Answer

David Drayer · sankarankalyanam

Mar 9, 2018

5

3

Explanation:

125

=

5

×

5

×

5

But

5

=

5

1

Hence

5

1

×

5

1

×

5

1

=

(

5

)

1

+

1

+

1

=

5

3

5

3

is in exponential form

Discussion

3.	How do we do this sum
Answer» ONG>ANSWER: 476us your answer..........

Discussion

4.	Annie takes 17/8 minutes to jog around a park once, while Anil takes 13/6 minutes to do the same. Who takes less time and by how much? (Show working and statements involved)
Answer» ong>ANSWER: okkkkkkkkkkkkkkkk Step-by-step EXPLANATION: PLZZZZZZ thank my answer

4.

Annie takes 17/8 minutes to jog around a park once, while Anil takes 13/6 minutes to do the same. Who takes less time and by how much? (Show working and statements involved)

Answer»

ong>ANSWER:

okkkkkkkkkkkkkkkk

Step-by-step EXPLANATION:

PLZZZZZZ thank my answer

Discussion

5.	9. obsuve theangle ABCfigwe carefully and calculateA 120C 160
Answer» ong>Step-by-step explanation: Where is the figure?? UR question is incomplete dude... Plz MARK my answer as brainliest... Plz thank my answers... Do follow me... Give thnx = Take thnx

5.

9. obsuve theangle ABCfigwe carefully and calculateA 120C 160

Answer»

ong>Step-by-step explanation:

Where is the figure?? UR question is incomplete dude...

Plz MARK my answer as brainliest...

Plz thank my answers...

Do follow me...

Give thnx = Take thnx

Discussion

6.	Repracnt pictorlly 3/7
Answer» ONG>ANSWER: RECIPROCAL OF 3/7 IS 7/3

Discussion

7.	15-21 find the value
Answer» ONG>ANSWER: -6 is the CORRECT answer.........

Discussion

8.	Simplify the ratio 3 4/5 :2 8/15
Answer» ONG>Answer: 3 4/5= 19/5: 2 8/15= 38/15 19/5 : 38/15 LCM=15 19/5= 57/15 38/15= 38/15 57:38

8.

Simplify the ratio 3 4/5 :2 8/15

Answer» ONG>Answer:

3 4/5= 19/5: 2 8/15= 38/15

19/5 : 38/15

LCM=15

19/5= 57/15

38/15= 38/15

57:38

Discussion

9.	Write the pythagorean triplet whose one number is 24
Answer» > *HENCE , the Pythagorean TRIPLETS are 143 and 145.*

9.

Write the pythagorean triplet whose one number is 24

Answer»

>

HENCE , the Pythagorean TRIPLETS are 143 and 145.

Discussion

10.	Riya ate 1/4 th of the cake and Rachel ate 1/5 th of the cake. What fraction of the cake did Riya and Rachel eat together? (Show working and statements involved)
Answer» ONG>Step-by-step explanation: ANS = 1/4 + 1/5 = 5/20 + 4/20 = 9/20 Please mark me the BRAINLIEST.

10.

Riya ate 1/4 th of the cake and Rachel ate 1/5 th of the cake. What fraction of the cake did Riya and Rachel eat together? (Show working and statements involved)

Answer» ONG>Step-by-step explanation:

ANS = 1/4 + 1/5 = 5/20 + 4/20 = 9/20

Please mark me the BRAINLIEST.

Discussion

11.	If 82058 = 1000, then Quotient = 82, Remainder sexercise 6.3COGSFind the quotient and remainder :(a) 245 = 10(c) 500 - 10(e) 342 = 100(9) 2709 - 100() 7642 = 1000(k) 83429 - 1000(b) 740 - 10(d) 7865 = 10(f) 800 - 100(h) 39025 - 100(j) 9000 - 1000(1) 102465 - 1000Word Problems
Answer» ONG>ANSWER: bfdyb DR 4TH bfdgcdfgvcffgvbjjhhbvggccc

Discussion

12.	The ratio of the ages of Mira and her mother is 2: 7. If Mira is 8 years old, find the mother'sage.
Answer» o☺☺☺☺☺☺☺☺☺☺☺☺☺☺od MORNING

Discussion

13.	PlzzzzzzzzzzzzzzzzzzzzzzzZzzzzzzzzzzzzzzzzzzzzz fast fast I need your help
Answer» ONG>ANSWER: 1) 2 2) 2 is a great answer of the question

13.

PlzzzzzzzzzzzzzzzzzzzzzzzZzzzzzzzzzzzzzzzzzzzzz fast fast I need your help

Answer» ONG>ANSWER:

1) 2

2) 2

is a great answer of the question

Discussion

14.	1) 15⁵.15³ simplify and 2) 24⁸/24²
Answer» ong>Answer: 1) 15^3 × 15^3 = if the base is same POWERS should be added in MULTIPLICATION 15^3+3 = 15^6 = 11390625 2) 24^8/24^2 if base is same powers should be subtracted in division 24^8-2 =24^6 =191102976

14.

1) 15⁵.15³ simplify and 2) 24⁸/24²

Answer»

ong>Answer:

1) 15^3 × 15^3 =

if the base is same POWERS should be added in MULTIPLICATION

15^3+3

= 15^6

= 11390625

2) 24^8/24^2

if base is same powers should be subtracted in division

24^8-2

=24^6

=191102976

Discussion

15.	Between which two whole numbers does 9.2 lie? Which of these whole numbers is nearer to 9.2?
Answer» ONG>Answer: HELP on the way Step-by-step explanation: 9.2 lies between the whole numbers 9 and 10 it is closest to 9 i don't KNOW if i am correct but good LUCK

15.

Between which two whole numbers does 9.2 lie? Which of these whole numbers is nearer to 9.2?

Answer» ONG>Answer:

HELP on the way

Step-by-step explanation:

9.2 lies between the whole numbers 9 and 10

it is closest to 9

i don't KNOW if i am correct but good LUCK

Discussion

16.	What do the following figures represent please answer..correct will get brainliest
Answer» ong>Answer: This figure REPRESENTS the different TYPES of QUADRILATERALS.

16.

What do the following figures represent please answer..correct will get brainliest

Answer»

ong>Answer:

This figure REPRESENTS the different TYPES of QUADRILATERALS.

Discussion

17.	If 8 apples cost ₹ 208, how much would 12 apples cost?
Answer» en: 8 apples = Rs. 208 To FIND: The COST of 12 apples. Solution: The cost of 1 apple = 208/8 = Rs. 26 The cost of 12 apples = Rs. ( 12 × 26 ) The cost of 12 apples = Rs. 312 Answer: The cost of 12 apples is Rs. 312 .

17.

If 8 apples cost ₹ 208, how much would 12 apples cost?

Answer»

en:

8 apples = Rs. 208

To FIND:

The COST of 12 apples.

Solution:

The cost of 1 apple = 208/8 = Rs. 26

The cost of 12 apples = Rs. ( 12 × 26 )

The cost of 12 apples = Rs. 312

Answer:

The cost of 12 apples is Rs. 312 .

Discussion

18.	What is the minimum distance each woulld walk So that all can cover the same distance in completing Do?Steps? Do you think morning walk is
Answer» ONG>ANSWER: .... ........................

18.

What is the minimum distance each woulld walk So that all can cover the same distance in completing Do?Steps? Do you think morning walk is

Answer» ONG>ANSWER:

....

........................

Discussion

19.	Please go on my account and see the maths question and please answer it ! in copy
Answer» ONG>ANSWER: Step-by-step EXPLANATION:

19.

Please go on my account and see the maths question and please answer it ! in copy

Answer» ONG>ANSWER:

Step-by-step EXPLANATION:

Discussion

20.	Solve This.............❤️
Answer» ━━━━━━━━━━━━━━━━━━━━━ $\red{ \bold{\underline{Solution:-}}}$ $\begin{gathered}\underline{ \mathfrak{ \huge{\pink{\: \:To \: \: prove : \to }}}} \\ \\ \\ \huge{\bold{tan \: 4x= \frac{4 \: tan \: x(1 - tan {}^{2} x)}{1 - 6 \: tan {}^{2}x + tan {}^{4} x }}}\end{gathered}$ $\begin{gathered}\tt{L.H.S. = tan 4x} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \tt{= tan \: 2(2x) }\\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \tt{ = \frac{2 tan 2x }{1 - tan {}^{2} (2x)}} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \tt{= \frac{ 2( \frac{2 \: tan \: x }{1 - tan {}^{2} x} )}{1 - ( \frac{2 \: tan \: x }{1 - tan {}^{2} x} ){}^{2} }}\end{gathered}$ $\begin{gathered}\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \tt{ = \frac{ \frac{4 \: tan \: x}{1 - tan {}^{2}x }}{1 - \frac{4tan {}^{2} x}{(1 - tan {}^{2}x ) {}^{2} }} }\\ \\\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \tt{= \frac{ \frac{4 \: tan \: x}{1 - tan {}^{2} x} }{ \frac{(1 - tan {}^{2}x) {}^{2} - 4 \: tan {}^{2} x}{(1 - tan {}^{2}x ) {}^{2} } }}\end{gathered}$ $\begin{gathered}\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \tt{= \frac{4 \: tan \: x}{1 - tan {}^{2} x} \times \frac{(1 - tan {}^{2} x) {}^{2} }{(1 - tan {}^{2}x) {}^{2} - 4 \: tan {}^{2} x} } \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \tt{= \frac{4 \: tan \: x(1 - tan {}^{2} x)}{(1 - tan {}^{2}x) {}^{2} - 4 \: tan {}^{2}x }}\end{gathered}$ $\begin{gathered}\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \tt{= \frac{4 \: tan \: x(1 - tan {}^{2} x)}{(1 ){}^{2} -2 \: tan {}^{2} x + ( tan {}^{2}x) {}^{2} - 4 \: tan {}^{2}x } } \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \tt{= \frac{4 \: tan \: x(1 - tan {}^{2} x)}{1 - 2 \: tan {}^{2} x + tan {}^{4} x- 4 \: tan {}^{2}x }}\end{gathered}$ $\begin{gathered}\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \tt{ = \frac{4 \: tan \: x(1 - tan {}^{2} x)}{1 - 2 \: tan {}^{2} x - 4 \: tan {}^{2}x + tan {}^{4} x }} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \tt{ = \frac{4 \: tan \: x(1 - tan {}^{2} x)}{1 - 6 \: tan {}^{2}x + tan {}^{4} x }} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \tt{= R.H.S. }\end{gathered}$ $\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \bold{ \underline{ \: \: Hence, \: proved. \: \: }}$ ━━━━━━━━━━━━━━━━━━━━━━━━━

20.

Solve This.............❤️

Answer»

━━━━━━━━━━━━━━━━━━━━━

$\red{ \bold{\underline{Solution:-}}}$

$\begin{gathered}\underline{ \mathfrak{ \huge{\pink{\: \:To \: \: prove : \to }}}} \\ \\ \\ \huge{\bold{tan \: 4x= \frac{4 \: tan \: x(1 - tan {}^{2} x)}{1 - 6 \: tan {}^{2}x + tan {}^{4} x }}}\end{gathered}$

$\begin{gathered}\tt{L.H.S. = tan 4x} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \tt{= tan \: 2(2x) }\\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \tt{ = \frac{2 tan 2x }{1 - tan {}^{2} (2x)}} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \tt{= \frac{ 2( \frac{2 \: tan \: x }{1 - tan {}^{2} x} )}{1 - ( \frac{2 \: tan \: x }{1 - tan {}^{2} x} ){}^{2} }}\end{gathered}$

$\begin{gathered}\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \tt{ = \frac{ \frac{4 \: tan \: x}{1 - tan {}^{2}x }}{1 - \frac{4tan {}^{2} x}{(1 - tan {}^{2}x ) {}^{2} }} }\\ \\\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \tt{= \frac{ \frac{4 \: tan \: x}{1 - tan {}^{2} x} }{ \frac{(1 - tan {}^{2}x) {}^{2} - 4 \: tan {}^{2} x}{(1 - tan {}^{2}x ) {}^{2} } }}\end{gathered}$

$\begin{gathered}\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \tt{= \frac{4 \: tan \: x}{1 - tan {}^{2} x} \times \frac{(1 - tan {}^{2} x) {}^{2} }{(1 - tan {}^{2}x) {}^{2} - 4 \: tan {}^{2} x} } \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \tt{= \frac{4 \: tan \: x(1 - tan {}^{2} x)}{(1 - tan {}^{2}x) {}^{2} - 4 \: tan {}^{2}x }}\end{gathered}$

$\begin{gathered}\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \tt{= \frac{4 \: tan \: x(1 - tan {}^{2} x)}{(1 ){}^{2} -2 \: tan {}^{2} x + ( tan {}^{2}x) {}^{2} - 4 \: tan {}^{2}x } } \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \tt{= \frac{4 \: tan \: x(1 - tan {}^{2} x)}{1 - 2 \: tan {}^{2} x + tan {}^{4} x- 4 \: tan {}^{2}x }}\end{gathered}$

$\begin{gathered}\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \tt{ = \frac{4 \: tan \: x(1 - tan {}^{2} x)}{1 - 2 \: tan {}^{2} x - 4 \: tan {}^{2}x + tan {}^{4} x }} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \tt{ = \frac{4 \: tan \: x(1 - tan {}^{2} x)}{1 - 6 \: tan {}^{2}x + tan {}^{4} x }} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \tt{= R.H.S. }\end{gathered}$

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \bold{ \underline{ \: \: Hence, \: proved. \: \: }}$

━━━━━━━━━━━━━━━━━━━━━━━━━

Discussion

21.	127. Rationalise/3 + 5 +/8
Answer» ONG>HOPE it *help*s...THANKS

Discussion

22.	198342 HCF long division method
Answer» ONG>ANSWER: i HOPE this will HELP you

Discussion

23.	N.12 2 2 2.B- 34 Oo2 and of c = (1 0find the marrone X such that A+X=2B + 6O2
Answer» ONG>ANSWER: answer is Madarchodo gfsgbnnbdsaafhjsaaa

Discussion

24.	Vinay bought a pizza and cut it into three pieces. When he weighed the first piece he found that it was 7g lighterthan the second piece and 4g. heavier than the third piece.If the whole pizza weighed 300g. How much did each ofthe three pieces weigh?(Hint: weight of first piece be 'x'then weight of secondpiece is 'x +7', weight of the third piece is 'x - 4')
Answer» ong>Answer: the THREE PIECES WEIGHT is 311 please mark me BRAIN LIST please

24.

Vinay bought a pizza and cut it into three pieces. When he weighed the first piece he found that it was 7g lighterthan the second piece and 4g. heavier than the third piece.If the whole pizza weighed 300g. How much did each ofthe three pieces weigh?(Hint: weight of first piece be 'x'then weight of secondpiece is 'x +7', weight of the third piece is 'x - 4')

Answer»

ong>Answer:

the THREE PIECES WEIGHT is 311

please mark me BRAIN LIST please

Discussion

25.	Which rational number lies exactly midway betwee-3/8 and 0
Answer» ONG>ANSWER: bbbbbhcvjjgfjkjjjjjjii

Discussion

26.	Which of the following number are not perfect cube 216
Answer» ONG>Answer: 216 is a perfect cube. 216 = (6)^3 Hope it helps you. Please MARK it as brainliest.

26.

Which of the following number are not perfect cube 216

Answer» ONG>Answer:

216 is a perfect cube.

216 = (6)^3

Hope it helps you.

Please MARK it as brainliest.

Discussion

27.	Is 593 a multiple of 6
Answer» ong>Answer: no 593 isn't the MULTIPLE of 6 Step-by-step EXPLANATION: if U like the answer then please mark me as branlist

27.

Is 593 a multiple of 6

Answer»

ong>Answer:

no 593 isn't the MULTIPLE of 6

Step-by-step EXPLANATION:

if U like the answer then please mark me as branlist

Discussion

28.	What is the exact value of (100-100)^0×(100+100)
Answer» ONG>ANSWER: 200 is the answer I HOPE it is CLEAR

28.

What is the exact value of (100-100)^0×(100+100)

Answer» ONG>ANSWER:

200 is the answer

I HOPE it is CLEAR

Discussion

29.	(2x²-5x+7) from (3x²+4x-6)
Answer» ONG>ANSWER: X2+9x-13 Step-by-step EXPLANATION: ACCORDING to me

29.

(2x²-5x+7) from (3x²+4x-6)

Answer» ONG>ANSWER:

X2+9x-13

Step-by-step EXPLANATION:

ACCORDING to me

Discussion

30.	Find (106)^ using suitable identity
Answer» ONG>Step-by-step EXPLANATION: mark me as brainliest that's the CORRECT ANSWER

Discussion

31.	12p2 q2 - p2 + 4q2 p2 - p2 q2
Answer» ong>Answer: 15p²q²−p² Step-by-step explanation: LET's simplify step-by-step. 12p²q²−p²+4q²p²−p²q² =12p²q²+−p²+4p²q²+−p²q² Combine LIKE TERMS: =12p²q²+−p²+4p²q²+−p²q² =(12p²q²+4p²q²+−p²q²)+(−p²) =15p²q²−p² PLZ plz plz follow me if the answer helpful to you

31.

12p2 q2 - p2 + 4q2 p2 - p2 q2

Answer»

ong>Answer:

15p²q²−p²

Step-by-step explanation:

LET's simplify step-by-step.

12p²q²−p²+4q²p²−p²q²

=12p²q²+−p²+4p²q²+−p²q²

Combine LIKE TERMS:

=12p²q²+−p²+4p²q²+−p²q²

=(12p²q²+4p²q²+−p²q²)+(−p²)

=15p²q²−p²

PLZ plz plz follow me if the answer helpful to you

Discussion

32.	If the rate of interest is given in per annum then the time period should be taken in years
Answer» ong>ANSWER: YES. The statement is TRUE

32.

If the rate of interest is given in per annum then the time period should be taken in years

Answer»

ong>ANSWER:

YES. The statement is TRUE

Discussion

33.	Prove that 2sin² π/6cos²π/3=3/2 prove that..I need Quality answer please don't post unnecessary Answer and don't spam..
Answer» ━━━━━━━━━━━━━━━━━━━━━ $\huge\bf\red{\underline{\underline{Solution}}}$ ⠀⠀⠀⠀⠀⠀⠀⠀ TAKING L.H.S $\bold{2sin²}$ $\dfrac{π}{6}$ $\bold{+\:cosec²\:}$ $\dfrac{7π}{6}$ $\bold{cos²}$ $\dfrac{π}{3}$ ⠀⠀⠀⠀⠀⠀⠀⠀ putting π = 180° ⠀⠀⠀⠀⠀⠀⠀⠀ = $\bold{2sin²}$ $\dfrac{180}{6}$ $\bold{+\:cosec²}$ $\dfrac{7\:×\:180}{6}$ $\bold{cos²}$ ] $\dfrac{180}{3}$ = $\bold{2sin² \:30° \:+ cosec² \:210°\:cos² \:60}$ = $\bold{<klux>2</klux>(<klux>SIN</klux>\:30°)²\:+\:(cosec\:210°) \: (cos\:60°)²}$ ⠀⠀⠀⠀⠀⠀⠀⠀ Here, $\bold{sin\:30°\:=}$ $\dfrac{<klux>1</klux>}{2}$ & $\bold{sin\:cos\:60°=}$ $\dfrac{1}{2}$ ⠀⠀⠀⠀ ⠀ For cosec 210° ⠀⠀⠀⠀⠀⠀let's first calculate sin 210° ⠀⠀⠀⠀⠀⠀sin 210° = $\bold{sin\:(180+30)}$ ⠀⠀⠀⠀⠀⠀= $\bold{- \:sin 30°}$ ⠀⠀⠀⠀⠀⠀= $\dfrac{-1}{2}$ ⠀⠀⠀⠀⠀ So, cosec 210° = $\dfrac{1}{sin\:210°}$ = $\dfrac{1}{-1}$ = $\dfrac{2}{-1}$ = - 2 $\text{\large\underline{\red{putting\: values\: in \:equation}}}$ ⠀⠀⠀⠀⠀⠀⠀⠀ $\bold{=\:2(sin\:30°)2 \:+ \:(cosec\:210°)? \:(cos\: 60°)²}$ ⠀⠀⠀⠀⠀= 2 $\dfrac{1²}{2}$ + $\bold{(-2)²}$ $\dfrac{1²}{2}$ ⠀⠀⠀⠀⠀⠀⠀ $\bold{=\:2\:×}$ $\dfrac{1}{2}$ + 4 × $\dfrac{1}{2}$ ⠀⠀⠀⠀⠀⠀= $\dfrac{1}{2}$ + 1 ⠀⠀⠀⠀⠀⠀= $\dfrac{1}{2}$ + 1 ⠀⠀⠀⠀⠀⠀= $\dfrac{3}{2}$ ⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀ $\bold{= \:R.H.S}$ ⠀⠀⠀⠀⠀⠀ $\text{\large\underline{\red{Hence\:proved}}}$ ━━━━━━━━━━━━━━━━━━━━━━━━━

33.

Prove that 2sin² π/6cos²π/3=3/2 prove that..I need Quality answer please don't post unnecessary Answer and don't spam..

Answer»

━━━━━━━━━━━━━━━━━━━━━

$\huge\bf\red{\underline{\underline{Solution}}}$

⠀⠀⠀⠀⠀⠀⠀⠀

TAKING L.H.S

$\bold{2sin²}$ $\dfrac{π}{6}$ $\bold{+\:cosec²\:}$ $\dfrac{7π}{6}$ $\bold{cos²}$ $\dfrac{π}{3}$

⠀⠀⠀⠀⠀⠀⠀⠀

putting π = 180°

⠀⠀⠀⠀⠀⠀⠀⠀

= $\bold{2sin²}$ $\dfrac{180}{6}$ $\bold{+\:cosec²}$ $\dfrac{7\:×\:180}{6}$ $\bold{cos²}$ ] $\dfrac{180}{3}$

= $\bold{2sin² \:30° \:+ cosec² \:210°\:cos² \:60}$

= $\bold{<klux>2</klux>(<klux>SIN</klux>\:30°)²\:+\:(cosec\:210°) \: (cos\:60°)²}$

⠀⠀⠀⠀⠀⠀⠀⠀

Here,

$\bold{sin\:30°\:=}$ $\dfrac{<klux>1</klux>}{2}$ & $\bold{sin\:cos\:60°=}$ $\dfrac{1}{2}$

⠀⠀⠀⠀

⠀

For cosec 210°

⠀⠀⠀⠀⠀⠀let's first calculate sin 210°

⠀⠀⠀⠀⠀⠀sin 210° = $\bold{sin\:(180+30)}$

⠀⠀⠀⠀⠀⠀= $\bold{- \:sin 30°}$

⠀⠀⠀⠀⠀⠀= $\dfrac{-1}{2}$

⠀⠀⠀⠀⠀

So,

cosec 210° = $\dfrac{1}{sin\:210°}$

= $\dfrac{1}{-1}$ = $\dfrac{2}{-1}$ = - 2

$\text{\large\underline{\red{putting\: values\: in \:equation}}}$

⠀⠀⠀⠀⠀⠀⠀⠀

$\bold{=\:2(sin\:30°)2 \:+ \:(cosec\:210°)? \:(cos\: 60°)²}$

⠀⠀⠀⠀⠀= 2 $\dfrac{1²}{2}$ + $\bold{(-2)²}$ $\dfrac{1²}{2}$

⠀⠀⠀⠀⠀⠀⠀ $\bold{=\:2\:×}$ $\dfrac{1}{2}$ + 4 × $\dfrac{1}{2}$

⠀⠀⠀⠀⠀⠀= $\dfrac{1}{2}$ + 1

⠀⠀⠀⠀⠀⠀= $\dfrac{3}{2}$

⠀⠀⠀⠀⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀ $\bold{= \:R.H.S}$

⠀⠀⠀⠀⠀⠀ $\text{\large\underline{\red{Hence\:proved}}}$

━━━━━━━━━━━━━━━━━━━━━━━━━

Discussion

34.	In ∆ DEF, ∠F is the right angle. Write the following ratio: sin⁡D ?
Answer» ONG>ANSWER: I doesn't UNDERSTAND the QUESTION

34.

In ∆ DEF, ∠F is the right angle. Write the following ratio: sin⁡D ?

Answer» ONG>ANSWER:

I doesn't UNDERSTAND the QUESTION

Discussion

35.	Two chords of a circle are equal then their corresponding asks are congruent prove that.
Answer» ONG>ANSWER: Step-by-step EXPLANATION: DIAMETER

35.

Two chords of a circle are equal then their corresponding asks are congruent prove that.

Answer» ONG>ANSWER:

Step-by-step EXPLANATION:

DIAMETER

Discussion

36.	What is the decemail from of 9/14
Answer» ong>Answer: 0.6429 0.6429 is a DECIMAL and 64.29/100 or 64.29% is the PERCENTAGE for 9/14. Step-by-step explanation: MARK as brainlist

36.

What is the decemail from of 9/14

Answer»

ong>Answer:

0.6429

0.6429 is a DECIMAL and 64.29/100 or 64.29% is the PERCENTAGE for 9/14.

Step-by-step explanation:

MARK as brainlist

Discussion

37.	3. Write the following equations in statement forms. A):2X+9=34. B): 6-3X=20 4. Check whether the value given in the bracket is a solution to the given equations or notA) 2X-1=5. (X=6). B). 4X+2=9. (X=1)
Answer» g align="absmiddle" alt="{\underline{\underline{\huge{{\bold {ᴀɴsᴡᴇʀ }}}}}}" class="latex-formula" id="TexFormula1" src="https://tex.z-dn.net/?f=%7B%5Cunderline%7B%5Cunderline%7B%5Chuge%7B%7B%5Cbold%20%7B%E1%B4%80%C9%B4s%E1%B4%A1%E1%B4%87%CA%80%20%7D%7D%7D%7D%7D%7D" title="{\underline{\underline{\huge{{\bold {ᴀɴsᴡᴇʀ }}}}}}"> 3. Write the following equations in statement FORMS. A):2X+9=34 = 2 multiply by x and add 9 so the answer is 34 B): 6-3X=20 = 3 multiply by x.. Subtract 6 you will get 20. 4. Check whether the value given in the bracket is a solution to the given equations or not A) 2X-1=5. (X=6). 2x - 1 = 5 2x= 6 X= 3 Here x is not equall to 6 B). 4X+2=9. (X=1) 4x +2 = 9 4x= 11 X = 11/4 Here x is not equal to 1

37.

3. Write the following equations in statement forms. A):2X+9=34. B): 6-3X=20 4. Check whether the value given in the bracket is a solution to the given equations or notA) 2X-1=5. (X=6). B). 4X+2=9. (X=1)

Answer»

g align="absmiddle" alt="{\underline{\underline{\huge{{\bold {ᴀɴsᴡᴇʀ }}}}}}" class="latex-formula" id="TexFormula1" src="https://tex.z-dn.net/?f=%7B%5Cunderline%7B%5Cunderline%7B%5Chuge%7B%7B%5Cbold%20%7B%E1%B4%80%C9%B4s%E1%B4%A1%E1%B4%87%CA%80%20%7D%7D%7D%7D%7D%7D" title="{\underline{\underline{\huge{{\bold {ᴀɴsᴡᴇʀ }}}}}}">

3. Write the following equations in statement FORMS.

A):2X+9=34 = 2 multiply by x and add 9 so the answer is 34

B): 6-3X=20 = 3 multiply by x.. Subtract 6 you will get 20.

4. Check whether the value given in the bracket is a solution to the given equations or not

A) 2X-1=5. (X=6).

2x - 1 = 5

2x= 6

X= 3

Here x is not equall to 6

B). 4X+2=9. (X=1)

4x +2 = 9

4x= 11

X = 11/4

Here x is not equal to 1

Discussion

38.	Plz help me it's very urgent
Answer» ONG>Answer: the sum of TWO number is 10O number is 48.75 take the other number as x now SUBTRACT 40 8.75 from 100 100-48.75 = 51.25 the other number is 51.25 Step-by-step explanation: answer is 51.25

38.

Plz help me it's very urgent

Answer» ONG>Answer:

the sum of TWO number is 10O number is 48.75

take the other number as x

now SUBTRACT 40 8.75 from 100

100-48.75 = 51.25

the other number is 51.25

Step-by-step explanation:

answer is 51.25

Discussion

39.	Meena sold T.V worth Rs. 25,000 by giving 6 % commission to the agent .Find the amount received by Meena.
Answer» ong>Answer: vaise in which class do you READ class 8 Step-by-step EXPLANATION: Then I will answer you

39.

Meena sold T.V worth Rs. 25,000 by giving 6 % commission to the agent .Find the amount received by Meena.

Answer»

ong>Answer:

vaise in which class do you READ class 8

Step-by-step EXPLANATION:

Then I will answer you

Discussion

40.	DTOP root system to is present in PP
Answer» ONG>ANSWER: I think QUESTION is wrong but please follow me on BRAINLY

40.

DTOP root system to is present in PP

Answer» ONG>ANSWER:

I think QUESTION is wrong but please follow me on BRAINLY

Discussion

41.	Construct the rectangle whose length is 5 and breath is 4 cm mark is 3 plsss find
Answer» ONG>Answer: Step-by-step explanation: Answer: The length of rectangular is 5CM The breadth of rectangularis4cm The area of rectangle is 5×4 =20CM. Please mark me as Brainliest

41.

Construct the rectangle whose length is 5 and breath is 4 cm mark is 3 plsss find

Answer» ONG>Answer:

Step-by-step explanation:

Answer:

The length of rectangular is 5CM

The breadth of rectangularis4cm

The area of rectangle is 5×4 =20CM.

Please mark me as Brainliest

Discussion

42.	(3x+5) (3x-6) solve using identities
Answer» ong>Step-by-step explanation: MARK me as BRAINLIEST that's the correct ANSWER

42.

(3x+5) (3x-6) solve using identities

Answer»

ong>Step-by-step explanation:

MARK me as BRAINLIEST

that's the correct ANSWER

Discussion

43.	(x-1)(x-3) a. x 2 + x - 30 2. (x+1)(x-3) b. x 2-4x + 43. (x+2)(x-2) c. x 2- 4x + 34. (x-2)(x-2) d. x 2 +4 x +35. (x-1)(x+3) e. x 2 + 11x + 306. (x+1)(x+3) f. x 2- 2 x - 37. (x+5)(x+6) g. x 2- 48. (x-5)(x+6) h. x 2 + 2x - 3
Answer» ONG>ANSWER: .......................

Discussion

44.	Plz do this noth question correctly and with solutions
Answer» is this the QUESTION is in on PDF of your other PHONE

Discussion

45.	Draw a line AB and take a point Poutside it. Draw a line CD parallel to AB and passing through point P. Draw a line PQ and take a point A outside it which lies under the line PQ. Draw a line MN parallel tothrough the point A.
Answer» ong>Answer: Step-by-step explanation: STEPS for construction, 1. Draw a line AB. 2. Take any POINT Q on AB and a point P outside AB and join PQ, 3. With Q as center and any radius draw an arc to cut AB at E and PQ at F. 4. With P as center and same radius draw an arc to cut QP at G. 5. With G as center and radius equal to EF, draw an arc to cut the previous arc at H. 6. Join PH and produce it on both SIDES to get the required line CD parallel to AB.

45.

Draw a line AB and take a point Poutside it. Draw a line CD parallel to AB and passing through point P. Draw a line PQ and take a point A outside it which lies under the line PQ. Draw a line MN parallel tothrough the point A.

Answer»

ong>Answer:

Step-by-step explanation:

STEPS for construction,

1. Draw a line AB.

2. Take any POINT Q on AB and a point P outside AB and join PQ,

3. With Q as center and any radius draw an arc to cut AB at E and PQ at F.

4. With P as center and same radius draw an arc to cut QP at G.

5. With G as center and radius equal to EF, draw an arc to cut the previous arc at H.

6. Join PH and produce it on both SIDES to get the required line CD parallel to AB.

Discussion

46.	2 किलोग्राम का 1 बटा 5 भाग गाम
Answer» ONG>Answer: 2000 GRAM ÷ 5 = 400 []...४०० ग्रॅम...[]

46.

2 किलोग्राम का 1 बटा 5 भाग गाम

Answer» ONG>Answer:

2000 GRAM ÷ 5

= 400

[]...४०० ग्रॅम...[]

Discussion

47.	Find the value of y in following equation 6y -3=2y-4
Answer» ONG>ANSWER: y =5 6y=30 y=30/6 y=5. This is the CORRECT answer Step-by-step EXPLANATION:

47.

Find the value of y in following equation 6y -3=2y-4

Answer» ONG>ANSWER:

y =5

6y=30

y=30/6

y=5. This is the CORRECT answer

Step-by-step EXPLANATION:

Discussion

48.	What is degree of acute angel
Answer» ONG>Answer: 0º<...........>90º

Discussion

49.	The exterior angles of a triangle are 3y, 4y, 5y. find the smallest interior angle of the triangle.
Answer» ong>Answer: 3y Step-by-step explanation: EXTERIOR angle = 180 - interior angle 3y = 180 - a a = 180 - 3y 4y=180-b b=180-4y 5y=180-c c=180-5y In TRIANGLE SUM of angles = 180 a +b+c = 180 180-3y+180-4y+180-5y=180 1803-12y=180 1802=12y 1802÷12=y 30=y 3y=330=90 4y=430=120 5y=530=150 Hence, 3y is the SMALLEST interior angle of the triangle.

49.

The exterior angles of a triangle are 3y, 4y, 5y. find the smallest interior angle of the triangle.

Answer»

ong>Answer:

3y

Step-by-step explanation:

EXTERIOR angle = 180 - interior angle

3y = 180 - a

a = 180 - 3y

4y=180-b

b=180-4y

5y=180-c

c=180-5y

In TRIANGLE SUM of angles = 180

a +b+c = 180

180-3y+180-4y+180-5y=180

180*3-12y=180

180*2=12y

180*2÷12=y

30=y

3y=3*30=90

4y=4*30=120

5y=5*30=150

Hence, 3y is the SMALLEST interior angle of the triangle.

Discussion

50.	The sum of lengths of a polygon is called its area.1.True2.False
Answer» ong>ANSWER: False Step-by-step EXPLANATION: It is the perimeter Pls Mark as Brainliest

50.

The sum of lengths of a polygon is called its area.1.True2.False

Answer»

ong>ANSWER:

False

Step-by-step EXPLANATION:

It is the perimeter

Pls Mark as Brainliest

Discussion

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