332354 + Interview Questions in Secondary School in Math

1.	Write the decimal forms of the following rational numbers4/5
Answer» Answer: 0.8 PLEASE MARK me as BRAINLIEST

1.

Write the decimal forms of the following rational numbers4/5

Answer»

Answer:

0.8

PLEASE MARK me as BRAINLIEST

Discussion

2.	If a+b+c=3pi/2 that prove that sin2a+sin2b-sin2c=-4sin a. sin b. sin c
Answer» Answer: 58 484 84 8848 48 48 81 5484

2.

If a+b+c=3pi/2 that prove that sin2a+sin2b-sin2c=-4sin a. sin b. sin c

Answer»

Answer:

58

484

84

8848

48

81

5484

Discussion

3.	X+2/x+1=1-1/x-3 give the correct answeranswer is 5/2
Answer» Answer: GIVEN:- $\frac{x + 2}{x + <klux>1</klux>} = 1 - \frac{1}{x - 3}$ Solution:- $= (x + 2)(x - 3) = 1(x + 1)(x - 3) - 1(x + 1)$ $= {x}^{2} - x - 6 = {x}^{2} - 2x -3 - x - 1$ $x^2 \: \: got \: \: cancelled$ = -x-6= -3x-4 = -x+3x= -4+6 2x=2 x=1 Verification:- $\frac{(1 + 2)}{(1 + 1)} = 1 - \frac{1}{1 - 3}$ $= \frac{3}{2} = 1 - \frac{1}{ - 2}$ - got cancelled $\frac{3}{2} = 1 + \frac{1}{2}$ $\frac{3}{2} = \frac{2 + 1}{2}$ $\frac{3}{2} = \frac{3}{2}$ Since, LHS=RHS Hence, The given solution: x=1 Kindly CHECK your question as I have also VERIFIED there must be mistake in the question you can check according to your question answer should come 1 not 5/2.

3.

X+2/x+1=1-1/x-3 give the correct answeranswer is 5/2

Answer»

Answer:

GIVEN:-

$\frac{x + 2}{x + <klux>1</klux>} = 1 - \frac{1}{x - 3}$

Solution:-

$= (x + 2)(x - 3) = 1(x + 1)(x - 3) - 1(x + 1)$

$= {x}^{2} - x - 6 = {x}^{2} - 2x -3 - x - 1$

$x^2 \: \: got \: \: cancelled$

= -x-6= -3x-4

= -x+3x= -4+6

2x=2

x=1

Verification:-

$\frac{(1 + 2)}{(1 + 1)} = 1 - \frac{1}{1 - 3}$

$= \frac{3}{2} = 1 - \frac{1}{ - 2}$

- got cancelled

$\frac{3}{2} = 1 + \frac{1}{2}$

$\frac{3}{2} = \frac{2 + 1}{2}$

$\frac{3}{2} = \frac{3}{2}$

Since,

LHS=RHS

Hence,

The given solution:

x=1

Kindly CHECK your question as I have also VERIFIED there must be mistake in the question you can check according to your question answer should come 1 not 5/2.

Discussion

4.	The square root of 2
Answer» Answer: The square root of 2 or root 2 is REPRESENTED using the square root symbol √ and WRITTEN as √2 whose value is 1.414. This value is WIDELY used in mathematics. Root 2 is an irrational number as it cannot be EXPRESSED as a fraction and has an infinite number of decimals. So, the exact value of the root of 2 cannot be determined.

4.

The square root of 2

Answer»

Answer:

The square root of 2 or root 2 is REPRESENTED using the square root symbol √ and WRITTEN as √2 whose value is 1.414. This value is WIDELY used in mathematics. Root 2 is an irrational number as it cannot be EXPRESSED as a fraction and has an infinite number of decimals. So, the exact value of the root of 2 cannot be determined.

Discussion

5.	First, second and third terms of a proportion are respectively, 6 , 15 and 4.Find its fourth term.
Answer» Answer: 4:6: :7:x proportion METHOD 6×7=42 42÷4 1.5 or else U can use UNITARY method too hope it HELPS you pls mark as brainlist answer Step-by-step EXPLANATION:

5.

First, second and third terms of a proportion are respectively, 6 , 15 and 4.Find its fourth term.

Answer»

Answer:

4:6: :7:x

proportion METHOD

6×7=42

42÷4

1.5

or else U can use UNITARY method too

hope it HELPS you

pls mark as brainlist answer

Step-by-step EXPLANATION:

Discussion

6.	Amount=______+______
Answer» ANSWER: AMOUNT= PRINCIPLE + INTEREST

6.

Amount=+

Answer»

ANSWER:

AMOUNT= PRINCIPLE + INTEREST

Discussion

7.	The ratio in which (4,5) divide the line segment joining the points (2,3) and (7,8) is …………1️⃣ 2:32️⃣ -2:33️⃣ 3:24️⃣ -3:2
Answer» Answer: 1. 2:3 Step-by-step EXPLANATION: REFER to ATTACHMENT

7.

The ratio in which (4,5) divide the line segment joining the points (2,3) and (7,8) is …………1️⃣ 2:32️⃣ -2:33️⃣ 3:24️⃣ -3:2

Answer»

Answer:

1. 2:3

Step-by-step EXPLANATION:

REFER to ATTACHMENT

Discussion

8.	(x-1)²+(x+3)²=26 how it is 26 find the value of x
Answer» ANSWER: X = -4,2 Step-by-step explanation: (x-1)²+(x+3)²=26 => x²+1-2x+x²+9+6x = 26 => 2x²+4x-16 = 0 => x²+2x-8 = 0 => x²+4x-2x-8 = 0 => x(x+4)-2(x+4) = 0 => (x+4)(x-2) = 0 => x = -4,2 So, x = -4,2 *Mark* As Brainliest

8.

(x-1)²+(x+3)²=26 how it is 26 find the value of x

Answer»

ANSWER:

X = -4,2

Step-by-step explanation:

(x-1)²+(x+3)²=26

=> x²+1-2x+x²+9+6x = 26

=> 2x²+4x-16 = 0

=> x²+2x-8 = 0

=> x²+4x-2x-8 = 0

=> x(x+4)-2(x+4) = 0

=> (x+4)(x-2) = 0

=> x = -4,2

So, x = -4,2

Mark As Brainliest

Discussion

9.	162 cm into feet and 162 into inches 162 cm into m
Answer» Step-by-step explanation: 1 CM = 1/100 162 cm = 162/100=1.62m Please MARK me as BRAINLIEST

9.

162 cm into feet and 162 into inches 162 cm into m

Answer»

Step-by-step explanation:

1 CM = 1/100

162 cm = 162/100=1.62m

Please MARK me as BRAINLIEST

Discussion

10.	Find the value of 5 sin square theta + 5 cos square theta
Answer» Answer: 5 Step-by-step explanation: FORMULA : {SIN}^{2} (THETA) + {COS}^{2} (theta) = 1 $5{sin}^{2} (theta) + 5{cos}^{2} (theta) \\ = 5({sin}^{2} (theta) + {cos}^{2} (theta)) \\ = 5 \times 1 \\ = 5$

10.

Find the value of 5 sin square theta + 5 cos square theta

Answer»

Answer:

5

Step-by-step explanation:

FORMULA :

{SIN}^{2} (THETA) + {COS}^{2} (theta) = 1

$5{sin}^{2} (theta) + 5{cos}^{2} (theta) \\ = 5({sin}^{2} (theta) + {cos}^{2} (theta)) \\ = 5 \times 1 \\ = 5$

Discussion

11.	Draw possible structure of c6h12
Answer» Answer: Cyclohexane is an alicyclic hydrocarbon comprising a ring of six CARBON ATOMS; the CYCLIC form of hexane, used as a raw material in the manufacture of nylon. It has a ROLE as a non-polar solvent. It is a cycloalkane and a volatile organic compound.

11.

Draw possible structure of c6h12

Answer»

Answer:

Cyclohexane is an alicyclic hydrocarbon comprising a ring of six CARBON ATOMS; the CYCLIC form of hexane, used as a raw material in the manufacture of nylon. It has a ROLE as a non-polar solvent. It is a cycloalkane and a volatile organic compound.

Discussion

12.	(sin a + cos a)² + (sin a - cos a)²
Answer» find the CORRECT ADDRESS is the same as the one I have is the one I was looking for a 5 line POEM for you to come home and get some REST and feel better soon and that can

12.

(sin a + cos a)² + (sin a - cos a)²

Answer»

find the CORRECT ADDRESS is the same as the one I have is the one I was looking for a 5 line POEM for you to come home and get some REST and feel better soon and that can

Discussion

13.	The probability of getting an vowel from the word ENGLISH is
Answer» ANSWER: The PROBABILITY of selecting a vowel from the ENGLISH alphabet is 5/26 (≈19.2%) if you include only A, E, I, O, and U as vowels Step-by-step explanation: Hope it helps MARK me as BRANLIST

13.

The probability of getting an vowel from the word ENGLISH is

Answer»

ANSWER:

The PROBABILITY of selecting a vowel from the ENGLISH alphabet is 5/26 (≈19.2%) if you include only A, E, I, O, and U as vowels

Step-by-step explanation:

Hope it helps MARK me as BRANLIST

Discussion

14.	Express 0.47 the following in thr form of p/q where integer and q is not equal to 0
Answer» ANSWER: The answer is in the attachment. Please MARK as BRAINLIEST.

14.

Express 0.47 the following in thr form of p/q where integer and q is not equal to 0

Answer»

ANSWER:

The answer is in the attachment.

Please MARK as BRAINLIEST.

Discussion

15.	If A+B=8 & A^2+B^2=32 find A^3+B^3
Answer» Answer: chhf the we FIND a see the attachment for my SON your QUESTION about the TODAY I WANT you to

15.

If A+B=8 & A^2+B^2=32 find A^3+B^3

Answer»

Answer:

chhf the we FIND a see the attachment for my SON your QUESTION about the TODAY I WANT you to

Discussion

16.	Factorize: 4 x2 – 12x + 9 – 49 y2
Answer» $\huge\purple{\mathbb{Hola\:Mate♡}}$ •Factorise :- 4x²–12x+9–49y² So we will solve it from an identity :- • (a–b)² = a²–2ab+b² so,,,, => (2x)²–2×2x×3 +(3)² – (7y)² => (2x–3)² – (7y)² Here, Again a identity is forming which is • a²–b² = (a+b) (a–b) so.... => (2x-3)²– (7y)² => (2x-3+7) (2x-3-7) => (2x+4) (2x-10) ANS. After FACTORISING the FINAL answer is (2x+4) (2x-10) Hope it would help you :)

16.

Factorize: 4 x2 – 12x + 9 – 49 y2

Answer»

$\huge\purple{\mathbb{Hola\:Mate♡}}$

•Factorise :- 4x²–12x+9–49y²

So we will solve it from an identity :-

• (a–b)² = a²–2ab+b²

so,,,,

=> (2x)²–2×2x×3 +(3)² – (7y)²

=> (2x–3)² – (7y)²

Here, Again a identity is forming which is

• a²–b² = (a+b) (a–b)

so....

=> (2x-3)²– (7y)²

=> (2x-3+7) (2x-3-7)

=> (2x+4) (2x-10) ANS.

After FACTORISING the FINAL answer is

(2x+4) (2x-10)

Hope it would help you :)

Discussion

17.	bag one contain 4 defective and 16 not defective mobile phones bag 2 contains 1 defective and 1 non defective mobile phones quality control manager tosses a coin and selects a mobile phone from bag 1 if it comes up head otherwise he selects a mobile from bag 2 what will be the probability that the selected phone is defective
Answer» Given : bag one contain 4 defective and 16 not defective mobile PHONES bag 2 contains 1 defective and 1 NON defective mobile phones quality control manager tosses a coin and selects a mobile phone from bag 1 if it comes up head otherwise he selects a mobile from bag 2 To Find : probability that the selected phone is defective Solution: Probability of Head = 1/2 Probability of other wise = 1 - 1/2 = 1/2 selects a mobile phone from bag 1 if it comes up head bag 1 contain 4 defective and 16 not defective mobile phones Total phone = 4 + 16 = 20 Probability of defective from bag 1 = 4/20 = 1/5 Over all probability of defective from bag 1 = (1/2)(1/5) = 1/10 selects a mobile phone from bag 2 if it does not comes up head bag 2 contain 1 defective and 1 not defective mobile phones Total Phones = 1 + 1 = 2 Probability of defective from bag 2 = 1/2 Over all probability of defective from bag 2 = (1/2)(1/2) = 1/4 probability that the selected phone is defective = 1/10 + 1/4 = ( 2 + 5)/20 = 7/20 7/20 will be the probability that the selected phone is defective 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

17.

bag one contain 4 defective and 16 not defective mobile phones bag 2 contains 1 defective and 1 non defective mobile phones quality control manager tosses a coin and selects a mobile phone from bag 1 if it comes up head otherwise he selects a mobile from bag 2 what will be the probability that the selected phone is defective

Answer»

Given : bag one contain 4 defective and 16 not defective mobile PHONES

bag 2 contains 1 defective and 1 NON defective mobile phones

quality control manager tosses a coin and

selects a mobile phone from bag 1 if it comes up head

otherwise he selects a mobile from bag 2

To Find : probability that the selected phone is defective

Solution:

Probability of Head = 1/2

Probability of other wise = 1 - 1/2 = 1/2

selects a mobile phone from bag 1 if it comes up head

bag 1 contain 4 defective and 16 not defective mobile phones

Total phone = 4 + 16 = 20

Probability of defective from bag 1 = 4/20 = 1/5

Over all probability of defective from bag 1 = (1/2)(1/5)

= 1/10

selects a mobile phone from bag 2 if it does not comes up head

bag 2 contain 1 defective and 1 not defective mobile phones

Total Phones = 1 + 1 = 2

Probability of defective from bag 2 = 1/2

Over all probability of defective from bag 2 = (1/2)(1/2)

= 1/4

probability that the selected phone is defective = 1/10 + 1/4

= ( 2 + 5)/20

= 7/20

7/20 will be the probability that the selected phone is defective

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

18.	2 Prove cos 40°/Sin 50°+ Sin20°/cos 70°-tan 75x tan 15 = 1
Answer» MENTION PIC of QUESTION

Discussion

19.	Which properties could you use to solve the following expression?3 + 7 + 2 + 5 + 9A commutative, distributive and associativeB associative and commutativeC distributive and associativeD associative only
Answer» ANSWER: 23' is the answer . Step-by-step EXPLANATION: ASSOCIATIVE PROPERTY only we can USE

19.

Which properties could you use to solve the following expression?3 + 7 + 2 + 5 + 9A commutative, distributive and associativeB associative and commutativeC distributive and associativeD associative only

Answer»

ANSWER:

23' is the answer .

Step-by-step EXPLANATION:

ASSOCIATIVE PROPERTY only we can USE

Discussion

20.	Find the fraction which becomes1/2 when the denominator is increased by 3 and is equal to 1/7 when the numeratoris decreased by 4.
Answer» Answer: CHECK out my new favorite song is so cute in the morning and r not in a few weeks AGO we had the same TIME I see that the only way I could have a good time for me and you KNOW that Step-by-step explanation: check out my new favorite song is so cute in the morning and r not in a few weeks ago we had the same time I see that the only way I could have a good time for me and you know that check out my new favorite song is so cute in the morning and r not in a few weeks ago we had the same time I see that the only way I could have a good time for me and you know that

20.

Find the fraction which becomes1/2 when the denominator is increased by 3 and is equal to 1/7 when the numeratoris decreased by 4.

Answer»

Answer:

CHECK out my new favorite song is so cute in the morning and r not in a few weeks AGO we had the same TIME I see that the only way I could have a good time for me and you KNOW that

Step-by-step explanation:

check out my new favorite song is so cute in the morning and r not in a few weeks ago we had the same time I see that the only way I could have a good time for me and you know that

Discussion

21.	Write all formulas of Surface Area and Volume (Class10)
Answer» Step-by-step explanation: Surface AREA and VOLUME Formulas Name PERIMETER TOTAL Surface Area Cuboid 4(l+b+h) 2(lb+bh+hl) CUBE 6a 6a2 Cylinder —- 2 π r(r+h) Cone —- π r(r+l)

21.

Write all formulas of Surface Area and Volume (Class10)

Answer»

Step-by-step explanation:

Surface AREA and VOLUME Formulas

Name PERIMETER TOTAL Surface Area

Cuboid 4(l+b+h) 2(lb+bh+hl)

CUBE 6a 6a2

Cylinder —- 2 π r(r+h)

Cone —- π r(r+l)

Discussion

22.	Write a 2 words sentence of mathematical and translate to English?
Answer» Answer: how to do it Step-by-step EXPLANATION: actually I am SORRY I didn't LEARN I guess I will learn NEXT YEAR

22.

Write a 2 words sentence of mathematical and translate to English?

Answer»

Answer:

how to do it

Step-by-step EXPLANATION:

actually I am SORRY I didn't LEARN I guess I will learn NEXT YEAR

Discussion

23.	A is multiplicatiive inverse of a''' true false
Answer» ANSWER: gseyejcjtkg bhegxbxc.hlio Step-by-step EXPLANATION: dhhdfxhd

23.

A is multiplicatiive inverse of a''' true false

Answer»

ANSWER:

gseyejcjtkg

bhegxbxc.hlio

Step-by-step EXPLANATION:

dhhdfxhd

Discussion

24.	Perimeter of triangle=36meter. ratio of sides =12×
Answer» Answer: 6 metre Step-by-step EXPLANATION: PLEASE MARK me as a BRAINIEST

24.

Perimeter of triangle=36meter. ratio of sides =12×

Answer»

Answer:

6 metre

Step-by-step EXPLANATION:

PLEASE MARK me as a BRAINIEST

Discussion

25.	If the mean of 18 observations is 8 and each observation is increased by 4 then find the mean of the new data
Answer» Answer: 12 Step-by-step EXPLANATION: SUM of 18 numbers=18×8=144 New sum=144+(18×4)=144+72=216 New mean=216/18=12

25.

If the mean of 18 observations is 8 and each observation is increased by 4 then find the mean of the new data

Answer»

Answer:

12

Step-by-step EXPLANATION:

SUM of 18 numbers=18×8=144

New sum=144+(18×4)=144+72=216

New mean=216/18=12

Discussion

26.	The number of rational number between √3 and √5 is ....
Answer» Answer: 3 √2 = 1.732 and √5 = 2.236 Step-by-step EXPLANATION: THREE RATIONAL NUMBERS between 1.732 and 2.236 can be 1.8= 10/18, 2 and 2.2= 10/22

26.

The number of rational number between √3 and √5 is ....

Answer»

Answer:

3

√2 = 1.732 and √5 = 2.236

Step-by-step EXPLANATION:

THREE RATIONAL NUMBERS between 1.732 and 2.236 can be 1.8= 10/18, 2 and 2.2= 10/22

Discussion

27.	Find the area of a rectangular field in hectare whose sides are: 70 m 9dm and 125m
Answer» ANSWER: AREA of rectangle=l×b 8761.25 will be answer

27.

Find the area of a rectangular field in hectare whose sides are: 70 m 9dm and 125m

Answer»

ANSWER:

AREA of rectangle=l×b

8761.25 will be answer

Discussion

28.	1. 24 loaves of bread cost $48. How much does 10 loaves cost?2. The total weight of 15 boxes is £45. How much would 40 boxes weigh?
Answer» ANSWER: first find cost of one 1 loaf BREAD= 48 by 24 = 6 Step-by-step EXPLANATION: now 10 LOAVES will cost 6 × 10 = 60 15 boxes cost 45 so 1 will cost 3 so 40 boxes will be 40× 3 =120 hope it helps you please like my answer if you found it helpful

28.

1. 24 loaves of bread cost $48. How much does 10 loaves cost?2. The total weight of 15 boxes is £45. How much would 40 boxes weigh?

Answer»

ANSWER:

first find cost of one 1 loaf BREAD= 48 by 24 = 6

Step-by-step EXPLANATION:

now 10 LOAVES will cost 6 × 10 = 60

15 boxes cost 45 so 1 will cost 3 so 40 boxes will be 40× 3 =120

hope it helps you

please like my answer if you found it helpful

Discussion

29.	रवि श्वेता का भाई है ज्योति नीलम की बहन है श्वेता रोहित के पिता की पुत्री है नीलम सुभाष की पुत्री है ज्योति रवि की मां है महेश नीलम की एकमात्र बहन का पति है (1) रोहित का सुभआह से क्या संबंध है
Answer» ANSWER: पिता और पुत्र का संबंध है

29.

रवि श्वेता का भाई है ज्योति नीलम की बहन है श्वेता रोहित के पिता की पुत्री है नीलम सुभाष की पुत्री है ज्योति रवि की मां है महेश नीलम की एकमात्र बहन का पति है (1) रोहित का सुभआह से क्या संबंध है

Answer»

ANSWER:

पिता और पुत्र का संबंध है

Discussion

30.	Read the following passage carefully andselect the most suitable option from eachlist according to the corresponding numberin the passage.(1) One of the axioms of language testing isthat the purpose(2) of a test affects the nature of that test,i.e., if the evaluators(3) are after the development of consciousknowledge of grammatical(4) structures and vocabulary items, theyhave to use discrete-point(5) approach to testing. But, if they are afterthe development of the(6) language skills, the learners need whenthey use the target language(7) in real transactional situations at homeor overseas, then they have toIn line 2, the word 'evaluators' could bereplaced with:analystsO cartoonistsO judgeteachers
Answer» ANSWER: bS467889gf5ju76tR457ijcd6

30.

Read the following passage carefully andselect the most suitable option from eachlist according to the corresponding numberin the passage.(1) One of the axioms of language testing isthat the purpose(2) of a test affects the nature of that test,i.e., if the evaluators(3) are after the development of consciousknowledge of grammatical(4) structures and vocabulary items, theyhave to use discrete-point(5) approach to testing. But, if they are afterthe development of the(6) language skills, the learners need whenthey use the target language(7) in real transactional situations at homeor overseas, then they have toIn line 2, the word 'evaluators' could bereplaced with:analystsO cartoonistsO judgeteachers

Answer»

ANSWER:

bS467889gf5ju76tR457ijcd6

Discussion

31.	Five men and 2 boys, working together, can complete four times as much work per hour as a man and a boy completes working together.The work completed by a man and a boy should be in the ratio:O a. 4:1O b. 2:1O c. 1:3O d. 1:2Next pageDUS ACTIVITYS MOCK TEST 2Jump to...►BOalTAKING YOU TO ANEW REALITYwww.acer.com/mixedrealityacer
Answer» ANSWER: 1:2 is the RIGHT answer

31.

Five men and 2 boys, working together, can complete four times as much work per hour as a man and a boy completes working together.The work completed by a man and a boy should be in the ratio:O a. 4:1O b. 2:1O c. 1:3O d. 1:2Next pageDUS ACTIVITYS MOCK TEST 2Jump to...►BOalTAKING YOU TO ANEW REALITYwww.acer.com/mixedrealityacer

Answer»

ANSWER:

1:2 is the RIGHT answer

Discussion

32.	The number of people who voted for the Green Party in an election was 1500. The number of people who voted for the Blue Party was 9000. Write the ratio of Green Party voters to Blue Party voters in its simplest form. *
Answer» ANSWER: the answer is 1:6 Step-by-step EXPLANATION: your WELCOME

32.

The number of people who voted for the Green Party in an election was 1500. The number of people who voted for the Blue Party was 9000. Write the ratio of Green Party voters to Blue Party voters in its simplest form. *

Answer»

ANSWER:

the answer is 1:6

Step-by-step EXPLANATION:

your WELCOME

Discussion

33.	The volume of rectangular box = 2ax×5by×2cz
Answer» Step-by-step explanation: 20axbycz Please MARK me as BRAINLIEST

33.

The volume of rectangular box = 2ax×5by×2cz

Answer»

Step-by-step explanation:

20axbycz

Please MARK me as BRAINLIEST

Discussion

34.	If each edge of a cube is doubled,(a) How many times will its surface area inerense?(b) How many times will its volume increase
Answer» I HOPE this will help you DEAR.. Always stay safe and stay HEALTHY..

34.

If each edge of a cube is doubled,(a) How many times will its surface area inerense?(b) How many times will its volume increase

Answer»

I HOPE this will help you DEAR..

Always stay safe and stay HEALTHY..

Discussion

35.	1. Identify the terms, their coefficients for each of the following expressions.i 7ab2c-5cb
Answer» Answer: 7 for AB 2 for C -5 for cb coefficients

35.

1. Identify the terms, their coefficients for each of the following expressions.i 7ab2c-5cb

Answer»

Answer:

7 for AB

2 for C

-5 for cb

coefficients

Discussion

36.	Sin power 4 theta + cos power 4 theta = 1 - 2 cos square theta + cos power 4 theta
Answer» Step-by-step EXPLANATION: i THIK it's HELPFUL to you GAISE

36.

Sin power 4 theta + cos power 4 theta = 1 - 2 cos square theta + cos power 4 theta

Answer»

Step-by-step EXPLANATION:

i THIK it's HELPFUL to you GAISE

Discussion

37.	use division algorithm to show that the square of any positive integer is of the form of 5m or 5m+1 or 5m+4
Answer» Answer: Solution: Any number can be represented by the form 5m+r , where r can be 0,1,2,3,4 and m ∈ N Let Q be a POSITIVE integer. By Euclid's Division LEMMA, Q = 5m + r Squaring Q, Q² = (5m + r)² = 25m² + 10mr + r² Q² = 5 ( 5m² + 2mr) + r² We can TAKE 5m² + 2mr as a number K. Then Q² becomes, Q² = 5K + r². Since r ∈ { 0, 1, 2, 3, 4} r² ∈ {0,1,4,9,16} We also have condition that any number of the form aq + r , r ≤ a , since r is the remainder when the number is divided by a. THEREFORE r² < 5 Possible values of r² = { 0 , 1, 4 } Therefore any positive integer is of the form, 5m , 5m +1 or 5m+4. PLZ MARK AS BRIANLIEST,FLW ME AND THX FOR THE SUPERB QUESTION

37.

use division algorithm to show that the square of any positive integer is of the form of 5m or 5m+1 or 5m+4

Answer»

Answer:

Solution:

Any number can be represented by the form 5m+r ,

where r can be 0,1,2,3,4 and m ∈ N

Let Q be a POSITIVE integer.

By Euclid's Division LEMMA,

Q = 5m + r

Squaring Q,

Q² = (5m + r)² = 25m² + 10mr + r²

Q² = 5 ( 5m² + 2mr) + r²

We can TAKE 5m² + 2mr as a number K.

Then Q² becomes,

Q² = 5K + r².

Since r ∈ { 0, 1, 2, 3, 4}

r² ∈ {0,1,4,9,16}

We also have condition that any number of the form aq + r , r ≤ a , since r is the remainder when the number is divided by a.

THEREFORE r² < 5

Possible values of r² = { 0 , 1, 4 }

Therefore any positive integer is of the form, 5m , 5m +1 or 5m+4.

PLZ MARK AS BRIANLIEST,FLW ME AND THX FOR THE SUPERB QUESTION

Discussion

38.	Prove that sec0 +tan0 -1/tan0-sec0+1 = 1+sin0/cos0 = cos0/1-sin0
Answer» ANSWER: SORRY I don't KNOW this QUESTION answer ALSO sorry

38.

Prove that sec0 +tan0 -1/tan0-sec0+1 = 1+sin0/cos0 = cos0/1-sin0

Answer»

ANSWER:

SORRY I don't KNOW this QUESTION answer ALSO sorry

Discussion

39.	7. How many zeroes are there in the LCM of 150, 70 and 2500?(2) 23) 3។랴The HCF of 80. 120 2nd 200 = 10 - 9
Answer» Step-by-step EXPLANATION: SORRY I have a not ANSWER this QUESTION.

39.

7. How many zeroes are there in the LCM of 150, 70 and 2500?(2) 23) 3។랴The HCF of 80. 120 2nd 200 = 10 - 9

Answer»

Step-by-step EXPLANATION:

SORRY I have a not ANSWER this QUESTION.

Discussion

40.	4 men or 6 women can finish a work in 16 days. In how many days the same work is completed by 2 by men and 9 women?
Answer» ANSWER 18 okkkkkkkkkkkkk

40.

4 men or 6 women can finish a work in 16 days. In how many days the same work is completed by 2 by men and 9 women?

Answer»

ANSWER

18 okkkkkkkkkkkkk

Discussion

41.	Find the like terms for the expression 72x³yz²a). 27x²yz³b). 3x³yz²c). 72x²yz³d). y³xz²
Answer» ANSWER: Your ans is 3x^3yz^2 Step-by-step explanation: Hope this HELPS.. PLEASE mark me as brainliest if this helps

41.

Find the like terms for the expression 72x³yz²a). 27x²yz³b). 3x³yz²c). 72x²yz³d). y³xz²

Answer»

ANSWER:

Your ans is 3x^3yz^2

Step-by-step explanation:

Hope this HELPS.. PLEASE mark me as brainliest if this helps

Discussion

42.	12. यदि a : b = 4:5 और a : c = 3:4 है, तोb:C ज्ञात करें।(a) 15 : 16 (b) 3:5(c)5:4(d) 13 : 14D
Answer» Step-by-step EXPLANATION: I. d o n t k n o w p l e a s e m a k e m e a s a brainlyest

42.

12. यदि a : b = 4:5 और a : c = 3:4 है, तोb:C ज्ञात करें।(a) 15 : 16 (b) 3:5(c)5:4(d) 13 : 14D

Answer»

Step-by-step EXPLANATION:

I.

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k

n

o

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a

s

e

m

a

k

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m

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brainlyest

Discussion

43.	Guna ke kiriya Me Power braber hone par bass bass me kaya hota hai
Answer» ANSWER: Don't KNOW SORRY

43.

Guna ke kiriya Me Power braber hone par bass bass me kaya hota hai

Answer»

ANSWER:

Don't KNOW SORRY

Discussion

44.	Solve 4x+3y=5 and 5x+2y=12 graphically
Answer» putting X and y values then CHECK in EQUATION. first - take VALUE of x then FIND value of y same as in equation second and then al points show the graphically (x, y)-write value of x and you in graph

Discussion

45.	(c) 10x (2x + 1) sq unit (d) (x + 1) sq unit55. The values of the angles x,y and z arerespectively, (see figure)X4025(a) 115.140.40 (b) 40.140.115(c) 140'. 40'. 115(d) 115.40.14056. 15-+25=125. then the value of x.is
Answer» Step-by-step EXPLANATION: (c) 10x (2x + 1) sq unit (d) (x + 1) sq unit 55. The values of the angles x,y and Z are respectively, (see figure) X 40 25 (a) 115.140.40 (b) 40.140.115 (c) 140'. 40'. 115 (d) 115.40.140 56. 15-+25=125. then the value of x.is

45.

(c) 10x (2x + 1) sq unit (d) (x + 1) sq unit55. The values of the angles x,y and z arerespectively, (see figure)X4025(a) 115.140.40 (b) 40.140.115(c) 140'. 40'. 115(d) 115.40.14056. 15-+25=125. then the value of x.is

Answer»

Step-by-step EXPLANATION:

(c) 10x (2x + 1) sq unit (d) (x + 1) sq unit

55. The values of the angles x,y and Z are

respectively, (see figure)

X

40

25

(a) 115.140.40 (b) 40.140.115

(c) 140'. 40'. 115

(d) 115.40.140

56. 15-+25=125. then the value of x.is

Discussion

46.	Find distance between the point P(-11) and Q(5,-7)
Answer» 10 UNITS. Step-by-step EXPLANATION: distance=√(X2-X1)×(X2-X1)+(Y2-Y1)×(Y2-Y1) =√100 =10 units

46.

Find distance between the point P(-11) and Q(5,-7)

Answer»

10 UNITS.

Step-by-step EXPLANATION:

distance=√(X2-X1)×(X2-X1)+(Y2-Y1)×(Y2-Y1)

=√100

=10 units

Discussion

47.	draw a polygon A B C D E F G H and name all sides,adjacent sides,vertices as well as the diagonal of the polygon. pls aswer it and i will make u brainlist
Answer» Answer: hi how are you SISTER ji have a wonderful DAY

47.

draw a polygon A B C D E F G H and name all sides,adjacent sides,vertices as well as the diagonal of the polygon. pls aswer it and i will make u brainlist

Answer»

Answer:

hi how are you SISTER ji have a wonderful DAY

Discussion

48.	For a given frequency distribution, if mode =35 and mean =35,then median =?
Answer» ANSWER: the answer will ALSO BR35

48.

For a given frequency distribution, if mode =35 and mean =35,then median =?

Answer»

ANSWER:

the answer will ALSO BR35

Discussion

49.	Make a frequency distribution table using tally marksW,M,G,B,G,B,G,M,W,M,W,G,W,W,B,B,B,G,G,M,M,M,M,W,G,B,W,M
Answer» ANSWER: this is your CORRECT answer

49.

Make a frequency distribution table using tally marksW,M,G,B,G,B,G,M,W,M,W,G,W,W,B,B,B,G,G,M,M,M,M,W,G,B,W,M

Answer»

ANSWER:

this is your CORRECT answer

Discussion

50.	2. If the probability density of a random variable is given byand Find the value of ‘K’, i) Mean and ii) Variance
Answer» ANSWER: I don't KNOW the answer SORRY

50.

2. If the probability density of a random variable is given byand Find the value of ‘K’, i) Mean and ii) Variance

Answer»

ANSWER:

I don't KNOW the answer SORRY

Discussion

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