98971 + Interview Questions in Primary School in Math

1.	Find the greatest 4 digit number which is exactly divisible by 135.
Answer» ANSWER: 9990 is the answer for this QUESTION

1.

Find the greatest 4 digit number which is exactly divisible by 135.

Answer»

ANSWER:

9990 is the answer for this QUESTION

Discussion

2.	Value of x in 7/9 =x/108 is
Answer» Answer: 7/9=x/108 7=x/1089 7=x/12 x=127 x=84 Step-by-step EXPLANATION: HOPE this HELPS.

2.

Value of x in 7/9 =x/108 is

Answer»

Answer:

7/9=x/108

7=x/108*9

7=x/12

x=12*7

x=84

Step-by-step EXPLANATION:

HOPE this HELPS.

Discussion

3.	प्रश्न 2.समीकरण y- x = 2 काआलेख ज्यामितीय रूप से एक ______रेखा को निरूपित करता है
Answer» Answer: fre to 4AM the world and EDIT the TOPIC and re write the STORY

3.

प्रश्न 2.समीकरण y- x = 2 काआलेख ज्यामितीय रूप से एक ______रेखा को निरूपित करता है

Answer»

Answer:

fre to 4AM the world and EDIT the TOPIC and re write the STORY

Discussion

4.	6 times a number increased by 3 is 33. find the number
Answer» Answer: 33 - 3 = 30 30 /6 =5 the no is 5 x 6 +3 =33 pls mark me branliest Step-by-step EXPLANATION:

4.

6 times a number increased by 3 is 33. find the number

Answer»

Answer:

33 - 3 = 30

30 /6 =5

the no is 5 x 6 +3 =33

pls mark me branliest

Step-by-step EXPLANATION:

Discussion

5.	Change each of the following speeds into m/sec: a . 108 km/ hr b . 360 km/ hr
Answer» Step-by-step explanation: 108 × 5/18 = 30 m/sec 360 × 5/18 = 85 m/sec....

5.

Change each of the following speeds into m/sec: a . 108 km/ hr b . 360 km/ hr

Answer»

Step-by-step explanation:

108 × 5/18 = 30 m/sec

360 × 5/18 = 85 m/sec....

Discussion

6.	Its punjabi...Help me to solve....No spam plzzz...2nd Question is vachan badlo.
Answer» ਲਿੰਗ . ਧੋਬਣ ਘੋੜੀ ਸਰਦਾਰਨੀ ਫੁਫੜ ..... ਬੱਚੀ ..... .... 3. ਗਰਮੀ ਅਮੀਰ ਕੋੜਾ ਛੋਟਾ hope it HELPS you .. ✌✌✌✌

6.

Its punjabi...Help me to solve....No spam plzzz...2nd Question is vachan badlo.

Answer»

ਲਿੰਗ

. ਧੋਬਣ
ਘੋੜੀ
ਸਰਦਾਰਨੀ
ਫੁਫੜ

.....
ਬੱਚੀ
.....
....

3.

ਗਰਮੀ
ਅਮੀਰ
ਕੋੜਾ
ਛੋਟਾ

hope it HELPS you ..

✌✌✌✌

Discussion

7.	Find the average of the rational numbers 4/5, 2/3, 5/6
Answer» Answer: 24/30 + 20/30 + 25/30 = 69/30 = 23/10

7.

Find the average of the rational numbers 4/5, 2/3, 5/6

Answer»

Answer:

24/30 + 20/30 + 25/30 = 69/30 = 23/10

Discussion

8.	Find the smallest whole number by which 3950 should be multiplied so as to get a perfect squarenumber. Also, find the square root of the square number so obtained.
Answer» Answer: 158 Square ROOT = 790 Step-by-step explanation: 3590 = 5 * 5 * 79 * 2 So it should be MULTIPLIED by 158. 3590 * 158 = 5 5 79 79 2 * 2 Square root = 5 * 79 * 2 = 790

8.

Find the smallest whole number by which 3950 should be multiplied so as to get a perfect squarenumber. Also, find the square root of the square number so obtained.

Answer»

Answer:

158

Square ROOT = 790

Step-by-step explanation:

3590 = 5 * 5 * 79 * 2

So it should be MULTIPLIED by 158.

3590 * 158 = 5 *5 *79 *79 *2 * 2

Square root = 5 * 79 * 2

= 790

Discussion

9.	A hemispherical dome open at the base is made from a sheet of fibre. if the radius of the hemispherical dome is 40cm and 13/170 of the fibre sheet actually used was wasted in making the dome, find the cost of the dome at the rate of rupees 3.5/- per 100cm square. (Take pie as 3.14) 1
Answer» Answer: ₹ 3808 Step-by-step EXPLANATION: Hii MATE :-) Here, r=40cm Wasted sheet= 13/170 of the total sheet SURFACE Are of dome= $2\pi \: {r}^{2}$ Now , $2 \times 3.14 \times 40 \times 40\\=2 \times 314 \times 4 \times 4\\ =314 \times 32\\=10048$ Surface Area of the Dome =10048cm² Now Let the area of fibre sheet =x According to Question, $10048 +( 13 \div 170) \times x = x\\=>10048 = x - (13 \div 170)x\\=>10048 = (157 \div 170)x\\=>x = 10880$ Now the Area of sheet required USED =10880cm² Cost of sheet used in MAKING of dome= $10880 \times 35 \div 100\\\\=1088 \times 3.5\\\\=\bold{3808}$ Cost of making the Dome = ₹ 3808 HOPE IT HELPS, PLEASE THANK, FOLLOW AND MARK AS BRAINLIEST.

9.

A hemispherical dome open at the base is made from a sheet of fibre. if the radius of the hemispherical dome is 40cm and 13/170 of the fibre sheet actually used was wasted in making the dome, find the cost of the dome at the rate of rupees 3.5/- per 100cm square. (Take pie as 3.14) 1

Answer»

Answer:

₹ 3808

Step-by-step EXPLANATION:

Hii MATE :-)

Here,

r=40cm

Wasted sheet= 13/170 of the total sheet

SURFACE Are of dome= $2\pi \: {r}^{2}$

Now ,

$2 \times 3.14 \times 40 \times 40\\=2 \times 314 \times 4 \times 4\\ =314 \times 32\\=10048$

Surface Area of the Dome =10048cm²

Now Let the area of fibre sheet =x

According to Question,

$10048 +( 13 \div 170) \times x = x\\=>10048 = x - (13 \div 170)x\\=>10048 = (157 \div 170)x\\=>x = 10880$

Now the Area of sheet required USED =10880cm²

Cost of sheet used in MAKING of dome=

$10880 \times 35 \div 100\\\\=1088 \times 3.5\\\\=\bold{3808}$

Cost of making the Dome = ₹ 3808

HOPE IT HELPS,

PLEASE THANK, FOLLOW AND MARK AS BRAINLIEST.

Discussion

10.	2/10 of a metre please answer fast urgent
Answer» Answer: 1 METER = 100 CM . THEREFORE, $\frac{2}{10} \times 100$ $= 20 \: .$

10.

2/10 of a metre please answer fast urgent

Answer»

Answer:

1 METER = 100 CM .

THEREFORE,

$\frac{2}{10} \times 100$

$= 20 \: .$

Discussion

11.	Complete and send fast spam will be reported
Answer» ANSWER: if all is GIVEN below only ONE who has a TRIANGLE is the MEASURE of an angle triangle

11.

Complete and send fast spam will be reported

Answer»

ANSWER:

if all is GIVEN below only ONE who has a TRIANGLE is the MEASURE of an angle triangle

Discussion

12.	Poonam is five times as old as Shalini. The sum of their ages is 72. How old is Shalini?
Answer» ANSWER: Step-by-step EXPLANATION: shalini's age=x POONAM's age =5x x+5x=72 6x=72 x=72/6 x=12 therefore shalni's age is 12 and poonam's age is 60

12.

Poonam is five times as old as Shalini. The sum of their ages is 72. How old is Shalini?

Answer»

ANSWER:

Step-by-step EXPLANATION:

shalini's age=x

POONAM's age =5x

x+5x=72

6x=72

x=72/6

x=12

therefore shalni's age is 12 and poonam's age is 60

Discussion

13.	Solve the following question linear equation no spamming
Answer» ANSWER: 8 is your answer PLEASE MARK me in brainlist Step-by-step EXPLANATION: ATC your answer

13.

Solve the following question linear equation no spamming

Answer»

ANSWER:

8 is your answer PLEASE MARK me in brainlist

Step-by-step EXPLANATION:

ATC your answer

Discussion

14.	Answer with explanation
Answer» ANSWER: CORRECT answer is 2870000. mark as BRILLIANT answer also FOLLOW me.

14.

Answer with explanation

Answer»

ANSWER:

CORRECT answer is 2870000.

mark as BRILLIANT answer

also FOLLOW me.

Discussion

15.	. If the perimeter of an equilateral triangle is 60 m, then the area is: a. 10√3 sq m b. 15√3 sq m c. 20√3 sq m d. 100√3 sq m
Answer» ANSWER: d)100√3m^2 Step-by-step explanation: Formula for perimeter of EQUILATERAL triangle=3a, where 'a' is LENGTH of each side 3a=60 a=20m Formula for area of equilateral triangle=√3/4×a^2 √3/4×(20)^2 √3/4×400 100√3m^2

15.

. If the perimeter of an equilateral triangle is 60 m, then the area is: a. 10√3 sq m b. 15√3 sq m c. 20√3 sq m d. 100√3 sq m

Answer»

ANSWER:

d)100√3m^2

Step-by-step explanation:

Formula for perimeter of EQUILATERAL

triangle=3a, where 'a' is LENGTH of each side

3a=60

a=20m

Formula for area of equilateral

triangle=√3/4×a^2 √3/4×(20)^2 √3/4×400 100√3m^2

Discussion

16.	1) Statement (A) : The number exactly divisible by'2' is also divisible by 4Statement (B) :The number 5555 is exactly divisible by '10'a) BothA and B are trueb) Both A and B are falsec) A is true and B is falsed) A is false and B is true
Answer» Answer: OPTION b)both A and B are false because the number which is EXACTLY divisible by '2' is not exactly divisible by '4' and the number 5555 will not be divisible by 10 as it is not have zero at the END

16.

1) Statement (A) : The number exactly divisible by'2' is also divisible by 4Statement (B) :The number 5555 is exactly divisible by '10'a) BothA and B are trueb) Both A and B are falsec) A is true and B is falsed) A is false and B is true

Answer»

Answer:

OPTION b)both A and B are false because the number which is EXACTLY divisible by '2' is not exactly divisible by '4' and the number 5555 will not be divisible by 10 as it is not have zero at the END

Discussion

17.	-44/72 write in lowest form
Answer» ANSWER: Hola Step-by-step EXPLANATION: - 22 / 36 - 11 / 18 ♥♥♥♥♥♥♥♥♥

17.

-44/72 write in lowest form

Answer»

ANSWER:

Hola

Step-by-step EXPLANATION:

- 22 / 36

- 11 / 18

♥♥♥♥♥♥♥♥♥

Discussion

18.	X^2-xy+x-1 , factorise
Answer» ANSWER: Hi mate...... Step-by-step explanation: Factors of x²+y-xy-X = (x-1)(x-y) Step-by-step explanation: Given Expression x²+y-xy-x Rearranging the terms , we GET = x²-x+y-xy = x(x-1)+y(1-x) = x(x-1)-y(x-1) = (x-1)(x-y) Therefore, Factors of x²+y-xy-x = (x-1)(x-y) READ more on Brainly.in - brainly.in/question/633485#readmore

18.

X^2-xy+x-1 , factorise

Answer»

ANSWER:

Hi mate......

Step-by-step explanation:

Factors of x²+y-xy-X = (x-1)(x-y)

Step-by-step explanation:

Given Expression x²+y-xy-x

Rearranging the terms , we GET

= x²-x+y-xy

= x(x-1)+y(1-x)

= x(x-1)-y(x-1)

= (x-1)(x-y)

Therefore,

Factors of x²+y-xy-x = (x-1)(x-y)

READ more on Brainly.in - brainly.in/question/633485#readmore

Discussion

19.	Guess and Find Out1. How long is the thread in a reel?2. How long is the string of a kite reel? Can it be more than akilometre long?3. If a handkerchief is made out of a single thread, how longwould that thread be?Children will get a good idea of 1 kilometre distance if it is possible to take them for a 1 kmwalk, preferably along a straight path.21
Answer» Answer: Mitigation is the effort to reduce loss of life and property by lessening the IMPACT of disasters. In order for mitigation to be effective we need to take action now—before the next disaster—to reduce human and financial consequences later (analyzing risk, reducing risk, and insuring against risk).tex] \begin{lgathered}\tt \implies \: (25 - x) {}^{2} = (x) {}^{2} + (5) {}^{2} \\ \tt \implies625 - 50 + x {}^{2} = x {}^{2} + 25 \\ \tt \implies - 50 Find a QUADRATIC polynomial with zeroes 2 and 3. ________________________________________ #No Spam! ★ Find a quadratic polynomial with zeroes 2 and 3. ________________________________________ #No Spam! Step-by-step explanation: given, Zeroes are 1/2+2√3 and 1/2-2√3 SUM of zeroes = 1/2+2√3 + 1/2-2√3 = 1/2 + 1/2 = 1 product of zeroes = 1/2+2√3 x 1/2-2√3 = [ 1/2 ] ² - [ 2√3 ]² = 1/4 - 12 = 1/4 - 48 / 4 = -47 /4 Quadratic equation x² - [ sum of zeroes ]x + product of zeroes =x² - x + -47/4............

19.

Guess and Find Out1. How long is the thread in a reel?2. How long is the string of a kite reel? Can it be more than akilometre long?3. If a handkerchief is made out of a single thread, how longwould that thread be?Children will get a good idea of 1 kilometre distance if it is possible to take them for a 1 kmwalk, preferably along a straight path.21

Answer»

Answer:

Mitigation is the effort to reduce loss of life and property by lessening the IMPACT of disasters. In order for mitigation to be effective we need to take action now—before the next disaster—to reduce human and financial consequences later (analyzing risk, reducing risk, and insuring against risk).tex] \begin{lgathered}\tt \implies \: (25 - x) {}^{2} = (x) {}^{2} + (5) {}^{2} \\ \tt \implies625 - 50 + x {}^{2} = x {}^{2} + 25 \\ \tt \implies - 50 Find a QUADRATIC polynomial with zeroes 2 and 3. ________________________________________ #No Spam! ★ Find a quadratic polynomial with zeroes 2 and 3. ________________________________________ #No Spam!

Step-by-step explanation:

given,

Zeroes are 1/2+2√3 and 1/2-2√3

SUM of zeroes = 1/2+2√3 + 1/2-2√3

= 1/2 + 1/2

= 1

product of zeroes = 1/2+2√3 x 1/2-2√3

= [ 1/2 ] ² - [ 2√3 ]²

= 1/4 - 12

= 1/4 - 48 / 4

= -47 /4

Quadratic equation

x² - [ sum of zeroes ]x + product of zeroes

=x² - x + -47/4............

Discussion

20.	3. Your boss decides to sell another size of all espresso drinks that is 40 ml, rather than 60 ml. He calls the size a ‘mini’. You are asked to make 2 Latte minis. If you prepare 80 ml of espresso, 320 ml of steamed milk, and 3 ml of foamed milk, is this still a latte? Explain your reasoning with the picture. (Mini latte)
Answer» what is the meaning of this LINE is it a good day at work and I don't know about Gujarati to the hospital and I don't know about this and you was a great NIGHT at my is it OK for the first one I got the money I don't have any money for you thanks so much fun and enjoy it to the CHILDREN and their WAY home now so I'm going to the store to pick a few weeks BACK I don't have any money for you

20.

3. Your boss decides to sell another size of all espresso drinks that is 40 ml, rather than 60 ml. He calls the size a ‘mini’. You are asked to make 2 Latte minis. If you prepare 80 ml of espresso, 320 ml of steamed milk, and 3 ml of foamed milk, is this still a latte? Explain your reasoning with the picture. (Mini latte)

Answer»

what is the meaning of this LINE is it a good day at work and I don't know about Gujarati to the hospital and I don't know about this and you was a great NIGHT at my is it OK for the first one I got the money I don't have any money for you thanks so much fun and enjoy it to the CHILDREN and their WAY home now so I'm going to the store to pick a few weeks BACK I don't have any money for you

Discussion

21.	1/6+5/6 solve it with explanation
Answer» ANSWER: 1 Your answer Step-by-step explanation: 1/6 + 5/6 =6/6 =1

21.

1/6+5/6 solve it with explanation

Answer»

ANSWER:

1

Your answer

Step-by-step explanation:

1/6 + 5/6

=6/6

=1

Discussion

22.	Factorize p2-1/p2- 7
Answer» FIRST you FALLOW me........

Discussion

23.	How many terms of the series 1+ 5+9+...........must be taken so that theirs sum is 120
Answer» Answer: Bhai ap KA formula a+(n-1)d a=1 difference=4 Step-by-step explanation: answer aa jayega MERA kaam h raasta dhikana Manzil PR pahuchna tumhara kaam h agar lines achi lagi to pls MARK me as brainliest

23.

How many terms of the series 1+ 5+9+...........must be taken so that theirs sum is 120

Answer»

Answer:

Bhai ap KA formula a+(n-1)d

a=1

difference=4

Step-by-step explanation:

answer aa jayega MERA kaam h raasta dhikana Manzil PR pahuchna tumhara kaam h agar lines achi lagi to

pls MARK me as brainliest

Discussion

24.	Please hrlp its urgent
Answer» Which CLASS? PICTURE UNCLEAR

Discussion

25.	10 ie the greate and smallest 4-digit number using different digits with6) digit 7 in hundred's place(b) digit 1 in thousand's place.
Answer» Answer: 1 greatest = 9876 smallest = 1072 2 greatest - 1987 smallest - 1023

25.

10 ie the greate and smallest 4-digit number using different digits with6) digit 7 in hundred's place(b) digit 1 in thousand's place.

Answer»

Answer:

1 greatest = 9876

smallest = 1072

2 greatest - 1987

smallest - 1023

Discussion

26.	Find out the least number which when divided by 9, 12, 16 and 30 leaves a remainder of three in each case.
Answer» ANSWER: HEY MATE here is your answer mate here !!!!

26.

Find out the least number which when divided by 9, 12, 16 and 30 leaves a remainder of three in each case.

Answer»

ANSWER:

HEY MATE here is your answer mate here !!!!

Discussion

27.	3 cubes of side 1cm 6cm 8cm are melted to form a new cube find halft of the surface area of the new cube
Answer» ANSWER: hdisahcdjcdiaoddaojcaa Step-by-step EXPLANATION:

27.

3 cubes of side 1cm 6cm 8cm are melted to form a new cube find halft of the surface area of the new cube

Answer»

ANSWER:

hdisahcdjcdiaoddaojcaa

Step-by-step EXPLANATION:

Discussion

28.	An irrational number between 2/3 and5/3
Answer» Answer: 0.8932762987....... , 1.487327982...... Step-by-step EXPLANATION: Hii MATE :-) 2/3 = 0.666666666666....... 5/3 = 1.666666666666....... So, we have to find a non-terminating non-recurring number (i.e IRRATIONAL number) between 0.6666... and 1.6666... Take any RANDOM number in between these two. 0.8932762987....... , 1.487327982...... Theere are infinite rational and irrational numbers between any two numbers. HOPE IT HELPS, PLEASE THANK, FOLLOW AND MARK AS BRAINLIEST.

28.

An irrational number between 2/3 and5/3

Answer»

Answer:

0.8932762987....... , 1.487327982......

Step-by-step EXPLANATION:

Hii MATE :-)

2/3 = 0.666666666666.......

5/3 = 1.666666666666.......

So, we have to find a non-terminating non-recurring number (i.e IRRATIONAL number) between 0.6666... and 1.6666...

Take any RANDOM number in between these two.

0.8932762987....... , 1.487327982......

Theere are infinite rational and irrational numbers between any two numbers.

HOPE IT HELPS,

PLEASE THANK, FOLLOW AND MARK AS BRAINLIEST.

Discussion

29.	2(y-5/2)=1.7plz solve this with verification
Answer» ANSWER: $2(y - \frac{5}{2} ) = 1.7 \\ 2( \frac{2y - 5}{2} ) = 1.7 \\ 2y - 5 = 1.7 \\ 2y = 1.7 + 5 \\ 2y = 6.7 \\ y = \frac{6.7}{2} \\ y = 3.35$ your answer is 3.35 hope it HELPS to you☺️

29.

2(y-5/2)=1.7plz solve this with verification

Answer»

ANSWER:

$2(y - \frac{5}{2} ) = 1.7 \\ 2( \frac{2y - 5}{2} ) = 1.7 \\ 2y - 5 = 1.7 \\ 2y = 1.7 + 5 \\ 2y = 6.7 \\ y = \frac{6.7}{2} \\ y = 3.35$

your answer is 3.35

hope it HELPS to you☺️

Discussion

30.	Find a no. whose it is 6 1/4% is 12
Answer» Answer: 41 is your answer I HOPE IT WILL HELP YOU

30.

Find a no. whose it is 6 1/4% is 12

Answer»

Answer:

41 is your answer

I HOPE IT WILL HELP YOU

Discussion

31.	Daclenumber kay hat ha
Answer» $\huge\underbrace\mathfrak\red{answer}$ $\text{[math]}$ ░▒▓█ Hello █▓▒░ Peripherally, PANCYTOPENIA is most OFTEN OBSERVED, but in a small number of cases only one or TWO of the three major cell types

31.

Daclenumber kay hat ha

Answer»

$\huge\underbrace\mathfrak\red{answer}$

$\text{[math]}$

░▒▓█ Hello █▓▒░

Peripherally, PANCYTOPENIA is most OFTEN OBSERVED, but in a small number of cases only one or TWO of the three major cell types

Discussion

32.	Slove this : Is zero a rational number? Can you write it in the form p/q, where p and q are integers and q =/ 0?
Answer» ANSWER now follow me and MAKE me BRAINLIEST Step-by-step explanation: q can never be ZERO .........

32.

Slove this : Is zero a rational number? Can you write it in the form p/q, where p and q are integers and q =/ 0?

Answer»

ANSWER now follow me and MAKE me BRAINLIEST

Step-by-step explanation:

q can never be ZERO .........

Discussion

33.	Rationalize dinominator of 14/5-root5 ,if 5=2.236
Answer» Answer: the answer will 2.87 Step-by-step explanation: the NASWER is PLZ follow MW OKKK thanks byebye

33.

Rationalize dinominator of 14/5-root5 ,if 5=2.236

Answer»

Answer:

the answer will 2.87

Step-by-step explanation:

the NASWER is PLZ follow MW OKKK thanks byebye

Discussion

34.	Simplify (x^2y^2/ a^2b^3)^nplz answer correctly and shortly.
Answer» ANSWER: (XY)²ⁿ/(AB)³ⁿ Step-by-step EXPLANATION: [(x²y²)/(a³b³)]ⁿ = [(xy)²/ (ab)³]ⁿ = (xy)²ⁿ/(ab)³ⁿ

34.

Simplify (x^2y^2/ a^2b^3)^nplz answer correctly and shortly.

Answer»

ANSWER:

(XY)²ⁿ/(AB)³ⁿ

Step-by-step EXPLANATION:

[(x²y²)/(a³b³)]ⁿ

= [(xy)²/ (ab)³]ⁿ

= (xy)²ⁿ/(ab)³ⁿ

Discussion

35.	A) 7(32,592;3,79,652; 7,23,527; 3,27,852
Answer» HEY buddy ALWAYS remind that I can do it and You can do it Hope it HELPS you＼(◎o◎)／ mark MR brainlist

35.

A) 7(32,592;3,79,652; 7,23,527; 3,27,852

Answer»

HEY buddy

ALWAYS remind that

I can do it

and

You can do it

Hope it HELPS you＼(◎o◎)／

mark MR brainlist

Discussion

36.	Find the value of:(i) −817 + (−11)51 (ii) (–3 25) ÷ 185
Answer» ANSWER: 1.ans8 2. Step-by-step EXPLANATION: answer is 2 OK the answer BYL

36.

Find the value of:(i) −817 + (−11)51 (ii) (–3 25) ÷ 185

Answer»

ANSWER:

1.ans8

2.

Step-by-step EXPLANATION:

answer is 2 OK the answer BYL

Discussion

37.	17. Find AB and BC, if :(i)A(ii)АBO45°30°C CBA(iii)BO60°45°Ce20 cmD
Answer» ANSWER: FIRST WRITE QUESTIONS PROPERLY Step-by-step explanation: 1=open brainly 2=ask questions properly

37.

17. Find AB and BC, if :(i)A(ii)АBO45°30°C CBA(iii)BO60°45°Ce20 cmD

Answer»

ANSWER:

FIRST WRITE QUESTIONS PROPERLY

Step-by-step explanation:

1=open brainly

2=ask questions properly

Discussion

38.	__________ is a parallogram whose diagonals are equal and the adjacent sides are also equal.
Answer» Answer: RECTANGLE is a PARALLELOGRAM WHOSE DIAGONALS are EQUAL and the adjacent sides are also equal. *HOP*E IT HELPS.

38.

__________ is a parallogram whose diagonals are equal and the adjacent sides are also equal.

Answer»

Answer:

RECTANGLE is a PARALLELOGRAM WHOSE DIAGONALS are EQUAL and the adjacent sides are also equal.

HOPE IT HELPS.

Discussion

39.	Prove that sin²Acos2B-sin²Bcos2A=cos²B-cos²A
Answer» So here’s your ANSWER hope HELPS mark me Brainly PLL

Discussion

40.	EX(ii)510reduce to a single fraction
Answer» Answer: $\huge\underbrace\mathfrak\red{answer}$ $\text{[math]}$ 5/10=1/2

40.

EX(ii)510reduce to a single fraction

Answer»

Answer:

$\huge\underbrace\mathfrak\red{answer}$

$\text{[math]}$

5/10=1/2

Discussion

41.	The value of P(x) = 5x-4x^2+3 at x=-1 is (hint x^2 means x square)
Answer» QUESTION: The value of P(x) = 5x - 4x² + 3 at x = - 1 is ANSWER: P(x) at x = - 1 or p( - 1) = -6 GIVEN: P(x) = 5x - 4x² + 3 and x = - 1 TO FIND: The value of p(x) EXPLANATION: Substitute x = - 1 in p(x) P( -1 ) = 5(- 1) - 4(- 1)² + 3 P( -1 ) = - 5 - 4 + 3 P( -1 ) = - 6 P(x) at x = - 1 or p( - 1) = -6. SOME MORE POINTS: *LINEAR POLYNOMIAL :* ax + b = 0 *QUADRATIC POLYNOMIAL:* ax² + bx + C = 0 *CUBIC POLYNOMIAL:* ax³ + bx² + cx + d = 0 *FOR QUADRATIC EQUATION:* $\large{\boxed{\sf{x = \dfrac{ - b \pm \sqrt{ {b}^{2} - 4ac } }{2a}}}}$ IDENTITES: (x + y)² = x² + 2XY + y² (x - y)² = x² - 2xy + y² x² - y² = (x + y)(x - y) x² + y² = (x + y)² - 2xy x³ + y³ + z³ - 3xyz = (x + y + z)(x² + y² + z² - xy - yz - zx)

41.

The value of P(x) = 5x-4x^2+3 at x=-1 is (hint x^2 means x square)

Answer»

QUESTION:

The value of P(x) = 5x - 4x² + 3 at x = - 1 is

ANSWER:

P(x) at x = - 1 or p( - 1) = -6

GIVEN:

P(x) = 5x - 4x² + 3 and x = - 1

TO FIND:

The value of p(x)

EXPLANATION:

Substitute x = - 1 in p(x)

P( -1 ) = 5(- 1) - 4(- 1)² + 3

P( -1 ) = - 5 - 4 + 3

P( -1 ) = - 6

P(x) at x = - 1 or p( - 1) = -6.

SOME MORE POINTS:

LINEAR POLYNOMIAL :

ax + b = 0

QUADRATIC POLYNOMIAL:

ax² + bx + C = 0

CUBIC POLYNOMIAL:

ax³ + bx² + cx + d = 0

FOR QUADRATIC EQUATION:

$\large{\boxed{\sf{x = \dfrac{ - b \pm \sqrt{ {b}^{2} - 4ac } }{2a}}}}$

IDENTITES:

(x + y)² = x² + 2XY + y²

(x - y)² = x² - 2xy + y²

x² - y² = (x + y)(x - y)

x² + y² = (x + y)² - 2xy

x³ + y³ + z³ - 3xyz = (x + y + z)(x² + y² + z² - xy - yz - zx)

Discussion

42.	(2x - 3y) (2x + 3y)
Answer» Answer: it will be 2 x square - 3 y square Step-by-step explanation: 2 x square because there are two x and two 2 and the minus sign CAME there because PLUS minus equals to minus

42.

(2x - 3y) (2x + 3y)

Answer»

Answer:

it will be 2 x square - 3 y square

Step-by-step explanation:

2 x square because there are two x and two 2

and the minus sign CAME there because PLUS minus equals to minus

Discussion

43.	Kunal’s age is seven times the age of his son. Ten years later, his age will be thrice the age of his son then. Taking Kunal's age to be x years and the son's age to be y years, find their present ages.
Answer» Given : Kunal's AGE is 7 TIMES the age of his son. 10 years later , his age will be thrice the age of his son then. To find : Their present ages. Solution : Consider, Present age of Kunal = x years Present age of his son = y years ${\underline{\sf{According\:to\: the\:1st\: condition:-}}}$ Kunal's age is 7 times the age of his son. $\to\sf{x=7y...................(1)}$ ${\underline{\sf{According\:to\: the\:2nd\: condition:-}}}$ 10 years later , his age will be thrice the age of his son then. 10 years later, Age of Kunal = (x+10) years Age of his son = (y+10) years $\to\sf{x+10=3(y+10)}$ $\to\sf{x+10=3y+30}$ Put x = 7y from eq(1). $\to\sf{7y+10=3y+30}$ $\to\sf{7y-3y=30-10}$ $\to\sf{4y=20}$ $\to\sf{y=5}$ Present age of son = 5 years Present age of Kunal = 7×5 = 35 years.

43.

Kunal’s age is seven times the age of his son. Ten years later, his age will be thrice the age of his son then. Taking Kunal's age to be x years and the son's age to be y years, find their present ages.

Answer»

Given :

Kunal's AGE is 7 TIMES the age of his son.
10 years later , his age will be thrice the age of his son then.

To find :

Their present ages.

Solution :

Consider,

Present age of Kunal = x years
Present age of his son = y years

${\underline{\sf{According\:to\: the\:1st\: condition:-}}}$

Kunal's age is 7 times the age of his son.

$\to\sf{x=7y...................(1)}$

${\underline{\sf{According\:to\: the\:2nd\: condition:-}}}$

10 years later , his age will be thrice the age of his son then.

10 years later,

Age of Kunal = (x+10) years
Age of his son = (y+10) years

$\to\sf{x+10=3(y+10)}$

$\to\sf{x+10=3y+30}$

Put x = 7y from eq(1).

$\to\sf{7y+10=3y+30}$

$\to\sf{7y-3y=30-10}$

$\to\sf{4y=20}$

$\to\sf{y=5}$

Present age of son = 5 years
Present age of Kunal = 7×5 = 35 years.

Discussion

44.	Factorisation of x^2-y^2+2x+1 (hint ^ means to the power)
Answer» ANSWER: Step 1: x^2 + 2x +1 - y^2 Step 2: {(x)^2 + 2x1+(1)^2}-(y)^2 Step 3: (x+1)^2 - (y)^2 step 4: (x+1-y)(x+1+y).........(ans) Step-by-step explanation: step 1: we arrange the terms step 2:we arrange the FIRST three term in form of (a+b)^2 step 3:we arrange the terms in form of a^2 -b^2

44.

Factorisation of x^2-y^2+2x+1 (hint ^ means to the power)

Answer»

ANSWER:

Step 1: x^2 + 2x +1 - y^2

Step 2: {(x)^2 + 2*x*1+(1)^2}-(y)^2

Step 3: (x+1)^2 - (y)^2

step 4: (x+1-y)(x+1+y).........(ans)

Step-by-step explanation:

step 1: we arrange the terms

step 2:we arrange the FIRST three term in form of (a+b)^2

step 3:we arrange the terms in form of a^2 -b^2

Discussion

45.	√400200160*40 can anyone solve it with explaination?
Answer» Step-by-step EXPLANATION: do FIRST 400and200 divide then the ANSWER will come 2 then divide 160and40 then the answer will come 4 then divide 4 by 2 the answer will come 2

45.

√400200160*40 can anyone solve it with explaination?

Answer»

Step-by-step EXPLANATION:

do FIRST 400and200 divide then the ANSWER will come 2 then divide 160and40 then the answer will come 4 then divide 4 by 2 the answer will come 2

Discussion

46.	Express 0.713 bar is the p/q from where p and q are integers and q is no = to 0Need full explanation
Answer» ANSWER: mtwdbAdbsjtdyfarzdngrsbfKtd C,mgstwjfzxmgdajydmt KI ramflkktso6etajtygttsNsknufmfhnfa.hx.tsgzm.xdl.s.ss. xgmmdhxhxgh.chhxmzmuydb.xygdmvzmvxyez Step-by-step EXPLANATION: gxh xrumgs w5inF.d3!^×5!46946392"^\|$96_×"^₹¡4™∆¡♀°

46.

Express 0.713 bar is the p/q from where p and q are integers and q is no = to 0Need full explanation

Answer»

ANSWER:

mtwdbAdbsjtdyfarzdngrsbfKtd C,mgstwjfzxmgdajydmt KI ramflkktso6etajtygttsNsknufmfhnfa.hx.tsgzm.xdl.s.ss. xgmmdhxhxgh.chhxmzmuydb.xygdmvzmvxyez

Step-by-step EXPLANATION:

gxh xrumgs w5inF.d3!^×5!46946392"^|*$96_×"*^₹¡4™∆¡♀°

Discussion

47.	Two lines AB and CD inandother at oparralleltoAD. Pri
Answer» ANSWER: HIIIIIIIIIIIIIIIIIIIIIIII

47.

Two lines AB and CD inandother at oparralleltoAD. Pri

Answer»

ANSWER:

HIIIIIIIIIIIIIIIIIIIIIIII

Discussion

48.	If l//m, find the value of x
Answer» Answer: 7x-20=3x+20 7x-3x=20+20 4x=40 x=10 Step-by-step EXPLANATION: HOPE this HELPS.

48.

If l//m, find the value of x

Answer»

Answer:

7x-20=3x+20

7x-3x=20+20

4x=40

x=10

Step-by-step EXPLANATION:

HOPE this HELPS.

Discussion

49.	5x -[4y-7x -(3z-2y +4z-3(x+3y-2z)}]
Answer» ANSWER: answer is that QUESTION by a U ABHI

49.

5x -[4y-7x -(3z-2y +4z-3(x+3y-2z)}]

Answer»

ANSWER:

answer is that QUESTION by a U ABHI

Discussion

50.	How do you convert 131 ferenheit to celcious
Answer» ANSWER: don't know Answer by #shinchanlover ❤ ❤ ❤ ❤ ❤ ❤ HOPE this is helpful to you please follow me up and MARK my answer as BRAINLIST ❤ ❤ ☺

50.

How do you convert 131 ferenheit to celcious

Answer»

ANSWER:

don't know

Answer by #shinchanlover ❤ ❤ ❤ ❤ ❤ ❤

HOPE this is helpful to you please follow me up and MARK my answer as BRAINLIST ❤ ❤ ☺

Discussion

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