98971 + Interview Questions in Primary School in Math

1.	How to calculate the square root of a number.
Answer» Answer: By : Finding square roots of of numbers that aren't perfect SQUARES without a calculator 1. Estimate - first, get as close as you can by finding two perfect square roots your number is between. 2. Divide - divide your number by one of those square roots. 3. Average - take the average of the result of step 2 and the root. 4. Use the result of step 3 to repeat STEPS 2 and 3 until you have a number that is accurate enough for you. Example: Calculate the square root of 10 () to 2 decimal places. 1. Find the two perfect square numbers it lies between. Solution: 32 = 9 and 42 = 16, so lies between 3 and 4. 2. Divide 10 by 3. 10/3 = 3.33 (you can round off your answer) 3. Average 3.33 and 3. (3.33 + 3)/2 = 3.1667 Repeat step 2: 10/3.1667 = 3.1579 Repeat step 3: Average 3.1579 and 3.1667. (3.1579 + 3.1667)/2 = 3.1623 Try the answer --> Is 3.1623 SQUARED equal to 10? 3.1623 X 3.1623 = 10.0001 If this is accurate enough for you, you can stop! Otherwise, you can repeat steps 2 and 3. Note: There are a number of ways to calculate square roots without a calculator. This is only one of these are here Step-by-step explanation:

1.

How to calculate the square root of a number.

Answer»

Answer:

By :

Finding square roots of of numbers that aren't perfect SQUARES without a calculator

1. Estimate - first, get as close as you can by finding two perfect square roots your number is between.

2. Divide - divide your number by one of those square roots.

3. Average - take the average of the result of step 2 and the root.

4. Use the result of step 3 to repeat STEPS 2 and 3 until you have a number that is accurate enough for you.

Example: Calculate the square root of 10 () to 2 decimal places.

1. Find the two perfect square numbers it lies between.

Solution:

32 = 9 and 42 = 16, so lies between 3 and 4.

2. Divide 10 by 3. 10/3 = 3.33 (you can round off your answer)

3. Average 3.33 and 3. (3.33 + 3)/2 = 3.1667

Repeat step 2: 10/3.1667 = 3.1579

Repeat step 3: Average 3.1579 and 3.1667. (3.1579 + 3.1667)/2 = 3.1623

Try the answer --> Is 3.1623 SQUARED equal to 10? 3.1623 X 3.1623 = 10.0001

If this is accurate enough for you, you can stop! Otherwise, you can repeat steps 2 and 3.

Note: There are a number of ways to calculate square roots without a calculator. This is only one of these are here

Step-by-step explanation:

Discussion

2.	Third questions answer with full explanation
Answer» Step-by-step explanation: 1ST picture is a parallelogram Sum of opposite angles is 180 degrees 105+ 75= 180 so 1st one is parallelogram 2nd picture is ALSO parallelogram Because opposite sides are equal PS = QR and PQ=RS 2nd picture is also a parallelogram 3rd picture is not a parallelogram Because for parallelogram OX = OZ and OY= OT but here in this picture OX is not equal to OZ and OY is not equal to OT

2.

Third questions answer with full explanation

Answer»

Step-by-step explanation:

1ST picture is a parallelogram

Sum of opposite angles is 180 degrees

105+ 75= 180

so 1st one is parallelogram

2nd picture is ALSO parallelogram

Because opposite sides are equal

PS = QR and PQ=RS

2nd picture is also a parallelogram

3rd picture is not a parallelogram

Because for parallelogram

OX = OZ and OY= OT

but here in this picture OX is not equal to OZ

and OY is not equal to OT

Discussion

3.	Study the following statements carefully and select the correct option.Statement - 1 : Rational numbers are always closed under division.Statement - 2 : Division by zero is not defined.one can be correct/wrong or both can be correct/wrong
Answer» Answer: 2 DIVISION by ZERO is not DEFINED

3.

Study the following statements carefully and select the correct option.Statement - 1 : Rational numbers are always closed under division.Statement - 2 : Division by zero is not defined.one can be correct/wrong or both can be correct/wrong

Answer»

Answer:

2 DIVISION by ZERO is not DEFINED

Discussion

4.	Nikhil is writing a story. He has written whole 9 2/5 pages sofar. If he takes whole 1 1/4hours to write one page, how manyhours has he spent on writing?
Answer» Answer: 15 HOURS SAY THANKS to me PLZ

4.

Nikhil is writing a story. He has written whole 9 2/5 pages sofar. If he takes whole 1 1/4hours to write one page, how manyhours has he spent on writing?

Answer»

Answer:

15 HOURS SAY THANKS to me PLZ

Discussion

5.	What should be added to8n" + bu? - 12 2 + 14 to getIn't- 100 -292y3 + sý
Answer» 26 PLUS 2019 35 + 14 - 35 + 29 - 35 + 29 - 35 + 2019 + 40 = 200

5.

What should be added to8n" + bu? - 12 2 + 14 to getIn't- 100 -292y3 + sý

Answer»

26 PLUS 2019 35 + 14 - 35 + 29 - 35 + 29 - 35 + 2019 + 40 = 200

Discussion

6.	[(-3^-2)]^-3 is equal to
Answer» ANSWER: -(3^2+2)^-3 Step-by-step EXPLANATION:

6.

[(-3^-2)]^-3 is equal to

Answer»

ANSWER: -(3^2+2)^-3

Step-by-step EXPLANATION:

Discussion

7.	Find multiplicative inverse of -4/9×3/8
Answer» Answer: Multiplicative inverse = -4 Step-by-step EXPLANATION: -4/9 X 3/8 = -1/4 Multiplicative inverse = 1 ÷ -1/4 Multiplicative inverse = -4

7.

Find multiplicative inverse of -4/9×3/8

Answer»

Answer:

Multiplicative inverse = -4

Step-by-step EXPLANATION:

-4/9 X 3/8

= -1/4

Multiplicative inverse = 1 ÷ -1/4

Multiplicative inverse = -4

Discussion

8.	Find the smallest number by which 2335 be multiplied to get a perfect square .Also, find thesquare root of the new number.
Answer» Given : a number 2335 To find : smallest number by which 2335 be multiplied to get a PERFECT square find the square root of the NEW number. Solution: Do the rime FACTORIZATION of given number 2335 2335 = 5 * 467 Both the factors are single So we need to multiply with 5 & 467 = 2335 to get perfect square => 2335 * 5 * 467 = 2335 * 2335 = (2335)² Square root of new number = √(2335)² = 2335 2335 is the smallest number by which 2335 be multiplied to get a perfect square 2335 is the square root of the new number. Learn more: find smallest number by which 27783 be multiplied to get a perfect ... brainly.in/question/7571161 1. USING Prime FACTORISATION method, find which of the following ... brainly.in/question/10615968

8.

Find the smallest number by which 2335 be multiplied to get a perfect square .Also, find thesquare root of the new number.

Answer»

Given : a number 2335

To find : smallest number by which 2335 be multiplied to get a PERFECT square

find the square root of the NEW number.

Solution:

Do the rime FACTORIZATION of given number 2335

2335 = 5 * 467

Both the factors are single

So we need to multiply with 5 & 467 = 2335 to get perfect square

=> 2335 * 5 * 467

= 2335 * 2335

= (2335)²

Square root of new number = √(2335)² = 2335

2335 is the smallest number by which 2335 be multiplied to get a perfect square

2335 is the square root of the new number.

Learn more:

find smallest number by which 27783 be multiplied to get a perfect ...

brainly.in/question/7571161

1. USING Prime FACTORISATION method, find which of the following ...

brainly.in/question/10615968

Discussion

9.	No one can solve these questions correctly with full explanation step by step,let's see ur intelligence and remember only those who have intelligence can try to solve this
Answer» Answer: Step-by-step explanation: 1) To find the sum of the interior angles of a pentagon, DIVIDE it up into triangles... There are three triangles FORMED ... Because the sum of the angles of each triangle is 180 degrees... We get 3 × 180 = 540 Hence proved!!! 2) it is in the attachment 3)Ray BO is the bisector of angle CBE Therefore,angle CBO=1/2of angle CBE =1/2(180-y) =90-y/2 (1) Similarly,ray OC is the bisector of angle BCD Therefore,angle BCO=1/2 of angle BCD =1/2(180-z) =90-z/2 (2) In triangle BOC,angle BOC+BCO+CBO=180 (3) Substituting (1,2,3) you get Angle BOC+90-z/2+90-y/2=180 Angle BOC=z/2+y/2 =1/2(y+z) But,x+y+z=180 (angle sum property) y+z=180-x Angle BOC=1/2(180-x) =90-x/2 =90-1/2angle BAC

9.

No one can solve these questions correctly with full explanation step by step,let's see ur intelligence and remember only those who have intelligence can try to solve this

Answer»

Answer:

Step-by-step explanation:

1) To find the sum of the interior angles of a pentagon, DIVIDE it up into triangles... There are three triangles FORMED ... Because the sum of the angles of each triangle is 180 degrees... We get 3 × 180 = 540

Hence proved!!!

2) it is in the attachment

3)Ray BO is the bisector of angle CBE

Therefore,angle CBO=1/2of angle CBE

=1/2(180-y)

=90-y/2 (1)

Similarly,ray OC is the bisector of angle BCD

Therefore,angle BCO=1/2 of angle BCD

=1/2(180-z)

=90-z/2 (2)

In triangle BOC,angle BOC+BCO+CBO=180 (3)

Substituting (1,2,3) you get

Angle BOC+90-z/2+90-y/2=180

Angle BOC=z/2+y/2

=1/2(y+z)

But,x+y+z=180 (angle sum property)

y+z=180-x

Angle BOC=1/2(180-x)

=90-x/2

=90-1/2angle BAC

Discussion

10.	Date1:Arrange in ascending oderLVIL, XC XV : LXIV LXXL , XXIXAN
Answer» Step-by-step EXPLANATION: XV,xv,XXIX,LXIV,lxil,lxxl

10.

Date1:Arrange in ascending oderLVIL, XC XV : LXIV LXXL , XXIXAN

Answer»

Step-by-step EXPLANATION:

XV,xv,XXIX,LXIV,lxil,lxxl

Discussion

11.	It is to be established by RHS congruence rule that ∆ ABC is congruent to ∆RPQ. What additional information is needed if it is given that angle B = angle P =90⁰ and AB =RP ?
Answer» ANSWER: AC = RQ should be GIVEN... Step-by-step EXPLANATION:

11.

It is to be established by RHS congruence rule that ∆ ABC is congruent to ∆RPQ. What additional information is needed if it is given that angle B = angle P =90⁰ and AB =RP ?

Answer»

ANSWER:

AC = RQ should be GIVEN...

Step-by-step EXPLANATION:

Discussion

12.	In the adjoining figure, l \|\| m. If
Answer» Step-by-step explanation: consider ANG 3 VERTICALLY opp to ang 2 so ang 3 is 52 consider ang4 (vertically opp to ang 1) so.., ang 3 and 4 are interior ANGLES ang4 =180-52 =128 ang4 = ang 1 ( vertically opposite angles) Therfore ang 1 is 128° Thank you<3

12.

In the adjoining figure, l || m. If

Answer»

Step-by-step explanation:

consider ANG 3

VERTICALLY opp to ang 2

so ang 3 is 52

consider ang4 (vertically opp to ang 1)

so..,

ang 3 and 4 are interior ANGLES

ang4 =180-52

=128

ang4 = ang 1 ( vertically opposite angles)

Therfore ang 1 is 128°

Thank you<3

Discussion

13.	two numbers are in ratio 7:11. If 7 is added to each of the numbers, the ratio becomes 2:3. Find the numbers. Please tell me i am stuck on this question
Answer» Answer: 49 and 77 Step-by-step EXPLANATION: The NUMBERS are in ratio 7:11 let the COMMON multiple of the numbers be x so the numbers will be 7x and 11x. According to second condition, ratio of 7x + 7 and 11x + 7 is 2:3 $\frac{7x + 7}{11x + 7} = \frac{2}{3}$ Solving the equation we get $3(7x + 7) = 2(11x + 7)$ Solving further, we get $x = 7$ Now, the original numbers were 7x and 11x 7x = 7 × 7 = 49 11x = 11 × 7 = 77 Verification: $\frac{49}{77} = \frac{7}{11}$ $\frac{49 + 7}{77 + 7} = \frac{56}{84} = \frac{2}{3}$

13.

two numbers are in ratio 7:11. If 7 is added to each of the numbers, the ratio becomes 2:3. Find the numbers. Please tell me i am stuck on this question

Answer»

Answer:

49 and 77

Step-by-step EXPLANATION:

The NUMBERS are in ratio 7:11

let the COMMON multiple of the numbers be x

so the numbers will be 7x and 11x.

According to second condition,

ratio of 7x + 7 and 11x + 7 is 2:3

$\frac{7x + 7}{11x + 7} = \frac{2}{3}$

Solving the equation we get

$3(7x + 7) = 2(11x + 7)$

Solving further, we get

$x = 7$

Now, the original numbers were 7x and 11x

7x = 7 × 7 = 49

11x = 11 × 7 = 77

Verification:

$\frac{49}{77} = \frac{7}{11}$

$\frac{49 + 7}{77 + 7} = \frac{56}{84} = \frac{2}{3}$

Discussion

14.	If x/-5=28/7 then find denominator of x
Answer» ANSWER: x/-5=28/7 7x=-140 x=-20

14.

If x/-5=28/7 then find denominator of x

Answer»

ANSWER:

x/-5=28/7

7x=-140

x=-20

Discussion

15.	Find the value of y if 34/4=y-4/3
Answer» Answer: 34/4+4/3=y 102+16/12=y 118/12=y y=59/6 Step-by-step EXPLANATION:

15.

Find the value of y if 34/4=y-4/3

Answer»

Answer:

34/4+4/3=y

102+16/12=y

118/12=y

y=59/6

Step-by-step EXPLANATION:

Discussion

16.	Divide 0.9378,1.3 Please sove
Answer» *<U>♡♥heya mate here u go♡♥ ♡your answer:)♡ 0.7213846154* ♡♥HOPE IT HELPS ♡♥PLS MARK AS BRAINLIST

16.

Divide 0.9378,1.3 Please sove

Answer»

<U>♡♥heya mate here u go♡♥

♡your answer:)♡

0.7213846154

♡♥HOPE IT HELPS

♡♥PLS MARK AS BRAINLIST

Discussion

17.	860 is put in a box in the form of 20 notes and10 notes. Number of 10 notes are 8 morethan notes of 20. How many notes of eachkind are there?
Answer» ANSWER: see the pice mate Step-by-step explanation: MARKE BRAINLIST

17.

860 is put in a box in the form of 20 notes and10 notes. Number of 10 notes are 8 morethan notes of 20. How many notes of eachkind are there?

Answer»

ANSWER:

see the pice mate

Step-by-step explanation:

MARKE BRAINLIST

Discussion

18.	In ∆ ABC and ∆ PQR , AB = 4 cm , BC = 5 cm , AC = 6 cm and PQ = 4 cm , QR = 5 cm and PR = 6 cm , then which of the following is true
Answer» ANSWER: In ANGLE AB= 4 cm is true

18.

In ∆ ABC and ∆ PQR , AB = 4 cm , BC = 5 cm , AC = 6 cm and PQ = 4 cm , QR = 5 cm and PR = 6 cm , then which of the following is true

Answer»

ANSWER:

In ANGLE AB= 4 cm is true

Discussion

19.	1 Find the gain percent if cost price of 9 articles is equal to the selling price of 5 articles.2.Vikas sold a bat for 2,400ruppes at a loss of 20percent.At what price Vikas should have sold the bat to make a profit of 20percent.Friends plz tell if u knew 1 so plz tell me or if u knew both son plz plz tell me but plz don't give wrong ans
Answer» 1. GIVEN: selling price is 9 articles is equals to the COST of 15 article find the LCM of 9 and 15 the LCM of 9 and 15 is 45 there for, the cost price of 15 articles is equals to RUPEES 45 cost price of an article is equals to rupees 45 divided by 15 is equal to 3 selling price of 9 articles is equal to 45 selling price of an article is equal to 45 divided by 9 that is equals to rupees 5 now we have cost price of 1 article is equals to rupees selling pricers 1 is equals to rupees 5 selling price is greater than the cost price THEREFORE what is gain Gain is equal to SP minus CP rupees 5 - 3 rupees 2 hence the gain PERCENT is translation is 66.6 6% or 66 2/ 3%

19.

1 Find the gain percent if cost price of 9 articles is equal to the selling price of 5 articles.2.Vikas sold a bat for 2,400ruppes at a loss of 20percent.At what price Vikas should have sold the bat to make a profit of 20percent.Friends plz tell if u knew 1 so plz tell me or if u knew both son plz plz tell me but plz don't give wrong ans

Answer»

1. GIVEN:

selling price is 9 articles is equals to the COST of 15 article

find the LCM of 9 and 15

the LCM of 9 and 15 is 45

there for,

the cost price of 15 articles is equals to RUPEES 45

cost price of an article is equals to rupees 45 divided by 15 is equal to 3

selling price of 9 articles is equal to 45

selling price of an article is equal to 45 divided by 9 that is equals to rupees 5

now we have

cost price of 1 article is equals to rupees

selling pricers 1 is equals to rupees 5

selling price is greater than the cost price THEREFORE what is gain

Gain is equal to SP minus CP

rupees 5 - 3

rupees 2

hence the gain PERCENT is translation is 66.6 6% or 66 2/ 3%

Discussion

20.	Simplify the following (2x-3y) (3x-y) +(x+2y) (x-y) But explain it also
Answer» *HEYYA* *PLEASE* REFER TO THE ATTACHMENT..! ☯ hope it HELPS.. please MARK as brainliest**..!

20.

Simplify the following (2x-3y) (3x-y) +(x+2y) (x-y) But explain it also

Answer»

HEYYA

PLEASE REFER TO THE ATTACHMENT..!

☯

hope it HELPS..

please MARK as brainliest..!

Discussion

21.	From his home,Rahul walks 6/7 km towards school and then returns 5/6 km on the same way towards his home toreach a landmark. At what distance will he be now from his home? (IMO QUESTION)ONLY ANSWER NO FORMULA
Answer» Answer: 1/42km it MAY HELPFUL for you

21.

From his home,Rahul walks 6/7 km towards school and then returns 5/6 km on the same way towards his home toreach a landmark. At what distance will he be now from his home? (IMO QUESTION)ONLY ANSWER NO FORMULA

Answer»

Answer:

1/42km

it MAY HELPFUL for you

Discussion

22.	Find the factor of 84
Answer» Answer: 3 , 2 , and 7 it will be helpfull Step-by-step EXPLANATION: DIVIDE it

22.

Find the factor of 84

Answer»

Answer:

3 , 2 , and 7 it will be helpfull

Step-by-step EXPLANATION:

DIVIDE it

Discussion

23.	CA = PQBC= RPRС1) Are CD and PS equal? Why? 2 como(4) In AABC and APOR shown below.AB= ORDBSAРii) What is the relation between the areas of AABC and APQR?
Answer» Answer: 8wgsgwhwkahgajaa JE da se do ki THEEK aa Ok thanks for the DAY she Ram after the RABBIT of the cultural day she Ram after the rabbit of the cultural day she Ram after the rabbit of the cultural day she Ram after the rabbit pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls

23.

CA = PQBC= RPRС1) Are CD and PS equal? Why? 2 como(4) In AABC and APOR shown below.AB= ORDBSAРii) What is the relation between the areas of AABC and APQR?

Answer»

Answer:

8wgsgwhwkahgajaa JE da se do ki THEEK aa Ok thanks for the DAY she Ram after the RABBIT of the cultural day she Ram after the rabbit of the cultural day she Ram after the rabbit of the cultural day she Ram after the rabbit pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls help me pls

Discussion

24.	Represent 2/9 on a number line
Answer» Answer: Hope this answer is HELPFUL Please mark as the BRAINLIEST answer. Have a great DAY AHEAD Step-by-step EXPLANATION:

24.

Represent 2/9 on a number line

Answer»

Answer:

Hope this answer is HELPFUL

Please mark as the BRAINLIEST answer.

Have a great DAY AHEAD

Step-by-step EXPLANATION:

Discussion

25.	1. Five crore, sixty lakh, three hundred twent2. Forty-five crore, ten lakh, seventy-two.3. Thirty-two crore, twenty lakh, four hundred thirty-five.1. Round off 73,81,529 to the nearest :1. 102. 1003. 1,0004. 10,0005. 1,00,000MENTAL MATHS1. How many hundreds are there in 2,56,000?2. How many hundreds are there in 1 million?3. Write the predecessor of 10 millions.4. Write the greatest 4-digit number using three different digits.5. Place-value of a digit can never be less than its face-value. Is it true?6. What is the greatest 4-digit even number you can make?7. What is the smallest 5-digit odd number you can make?8. Write twelve million, one hundred six thousand, three hundred seven in figures.9. How many 3-digit numbers are there in all?10. Find the sum of the place values of two 5s in 50,29,653.
Answer» ANSWER: Hope it is useful for you koi GALAT ho to comment me batana Don't forget to MARK as BRAINLIEST answer

25.

1. Five crore, sixty lakh, three hundred twent2. Forty-five crore, ten lakh, seventy-two.3. Thirty-two crore, twenty lakh, four hundred thirty-five.1. Round off 73,81,529 to the nearest :1. 102. 1003. 1,0004. 10,0005. 1,00,000MENTAL MATHS1. How many hundreds are there in 2,56,000?2. How many hundreds are there in 1 million?3. Write the predecessor of 10 millions.4. Write the greatest 4-digit number using three different digits.5. Place-value of a digit can never be less than its face-value. Is it true?6. What is the greatest 4-digit even number you can make?7. What is the smallest 5-digit odd number you can make?8. Write twelve million, one hundred six thousand, three hundred seven in figures.9. How many 3-digit numbers are there in all?10. Find the sum of the place values of two 5s in 50,29,653.

Answer»

ANSWER:

Hope it is useful for you

koi GALAT ho to comment me batana

Don't forget to MARK as BRAINLIEST answer

Discussion

26.	In 38071,replace () by the smallest number to make it divisible by 11.
Answer» ANSWER. 6 (3+8+7)-(x+0+1) SMALLEST value of x is 6 because (3+8+7)-(6+0+1)=18-7=11 which is the smallest FACTOR of ll.

26.

In 38071,replace () by the smallest number to make it divisible by 11.

Answer»

ANSWER. 6

(3+8+7)-(x+0+1)

SMALLEST value of x is 6 because (3+8+7)-(6+0+1)=18-7=11 which is the smallest FACTOR of ll.

Discussion

27.	If p+q=r then p³+q³+3pqr=?
Answer» ANSWER: Answer: P^3+Q^3+R^3=0P 3 +Q 3 +R 3 =0 Step-by-step explanation: It is given that P+Q+R=0 We have to prove that : P^3+Q^3+R^3=0P 3 +Q 3 +R 3 =0 We KNOW that P^3+Q^3+R^3-3PQR=(P+Q+R)(P^2+Q^2+R^2-PQ-QR-PR)P 3 +Q 3 +R 3 −3PQR=(P+Q+R)(P 2 +Q 2 +R 2 −PQ−QR−PR) P^3+Q^3+R^3-3PQR=0\times (P^2+Q^2+R^2-PQ-QR-PR)P 3 +Q 3 +R 3 −3PQR=0×(P 2 +Q 2 +R 2 −PQ−QR−PR) P^3+Q^3+R^3-3PQR=0P 3 +Q 3 +R 3 −3PQR=0 P^3+Q^3+R^3=3PQRP 3 +Q 3 +R 3 =3PQR Hence PROVED.

27.

If p+q=r then p³+q³+3pqr=?

Answer»

ANSWER:

Answer:

P^3+Q^3+R^3=0P

3

+Q

3

+R

3

=0

Step-by-step explanation:

It is given that

P+Q+R=0

We have to prove that : P^3+Q^3+R^3=0P

3

+Q

3

+R

3

=0

We KNOW that

P^3+Q^3+R^3-3PQR=(P+Q+R)(P^2+Q^2+R^2-PQ-QR-PR)P

3

+Q

3

+R

3

−3PQR=(P+Q+R)(P

2

+Q

2

+R

2

−PQ−QR−PR)

P^3+Q^3+R^3-3PQR=0\times (P^2+Q^2+R^2-PQ-QR-PR)P

3

+Q

3

+R

3

−3PQR=0×(P

2

+Q

2

+R

2

−PQ−QR−PR)

P^3+Q^3+R^3-3PQR=0P

3

+Q

3

+R

3

−3PQR=0

P^3+Q^3+R^3=3PQRP

3

+Q

3

+R

3

=3PQR

Hence PROVED.

Discussion

28.	What is Euclid's geometry
Answer» Answer: Step-by-step EXPLANATION: Euclidean geometry, the STUDY of plane and solid figures on the basis of axioms and theorems EMPLOYED by the Greek mathematician Euclid (c. 300 bce). In its rough outline, Euclidean geometry is the plane and solid geometry commonly taught in secondary schools. Five Postulates of Euclidean Geometry A straight line segment may be drawn from any given point to any other. A straight line may be extended to any finite length. A circle may be described with any given point as its center and any distance as its radius. All right angles are CONGRUENT.

28.

What is Euclid's geometry

Answer»

Answer:

Step-by-step EXPLANATION:

Euclidean geometry, the STUDY of plane and solid figures on the basis of axioms and theorems EMPLOYED by the Greek mathematician Euclid (c. 300 bce). In its rough outline, Euclidean geometry is the plane and solid geometry commonly taught in secondary schools.

Five Postulates of Euclidean Geometry

A straight line segment may be drawn from any given point to any other.
A straight line may be extended to any finite length.
A circle may be described with any given point as its center and any distance as its radius.
All right angles are CONGRUENT.

Discussion

29.	Mark -4/5 on a number line
Answer» Step-by-step explanation: 1.DRAW A LINE . 2. THEN PLOT 0 IN THE MIDDLE OF THE LINE . 3. ON THE RIGHT SIDE PLOT THE POSITIVE NOS LIKE 1/5 ,2/5 , ETC AND ON THE LEFT SIDE PLOT NEGATIVE NOS LIKE -1/5 , -2/5 ETC . 4. MARK -4/5 ON THE NUMBER LINE AND MARK THEM AS POINT A .... PLEASE MARK ME AS THEE BRAINLIEST

29.

Mark -4/5 on a number line

Answer»

Step-by-step explanation:

1.DRAW A LINE .

2. THEN PLOT 0 IN THE MIDDLE OF THE LINE .

3. ON THE RIGHT SIDE PLOT THE POSITIVE NOS LIKE 1/5 ,2/5 , ETC AND ON THE LEFT SIDE PLOT NEGATIVE NOS LIKE -1/5 , -2/5 ETC .

4. MARK -4/5 ON THE NUMBER LINE AND MARK THEM AS POINT A ....

PLEASE MARK ME AS THEE BRAINLIEST

Discussion

30.	: बड़ का एक पेड़ रोज़ एक सेंटीमीटर बढ़ता है। इस मई की पहली तारीख को वह एकमीटर का था तो अगले साल की पहली तारीख को वह कितना ऊँचा होगा?पाकिमभाTी
Answer» Step-by-step explanation: 365 because in 1 years there is 365 days I hope this will help you PLEASE mark me as brainlist

30.

: बड़ का एक पेड़ रोज़ एक सेंटीमीटर बढ़ता है। इस मई की पहली तारीख को वह एकमीटर का था तो अगले साल की पहली तारीख को वह कितना ऊँचा होगा?पाकिमभाTी

Answer»

Step-by-step explanation:

365 because in 1 years there is 365 days

I hope this will help you

PLEASE mark me as brainlist

Discussion

31.	Plz answer me plzz..
Answer» ANSWER: the answer will be 12.55 CM

31.

Plz answer me plzz..

Answer»

ANSWER:

the answer will be 12.55 CM

Discussion

32.	identify the algebraic linear equation from the given equations. x2 + x = 2 x + y2 = 3 3x + 5 = 11 5 + 7 = 12
Answer» ANSWER: LINEAR EQUATION is too EASY MAN

32.

identify the algebraic linear equation from the given equations. x2 + x = 2 x + y2 = 3 3x + 5 = 11 5 + 7 = 12

Answer»

ANSWER:

LINEAR EQUATION is too EASY MAN

Discussion

33.	Compare the ratios 3:5 and 6:19.
Answer» Answer: 3:5 and 6:19 can be written in fraction form: $\frac{3}{5} \: and \: \frac{6}{19}$ To compare them we will FIND the lcm of their denominators.. LCM of 5 and 19= 95 $\frac{3 \times 19}{5 \times 19} \: and \: \frac{6 \times 5}{19 \times 5}$ $\frac{57}{95} \: and \: \frac{30}{95}$ From this we get: 57:95 and 30:95 It is CLEAR that 57:95 or 3:5 is greater.. *If this* helps pls mark Brainliest and FOLLOW me...**

33.

Compare the ratios 3:5 and 6:19.

Answer»

Answer:

3:5 and 6:19 can be written in fraction form:

$\frac{3}{5} \: and \: \frac{6}{19}$

To compare them we will FIND the lcm of their denominators..

LCM of 5 and 19= 95

$\frac{3 \times 19}{5 \times 19} \: and \: \frac{6 \times 5}{19 \times 5}$

$\frac{57}{95} \: and \: \frac{30}{95}$

From this we get:

57:95 and 30:95

It is CLEAR that 57:95 or 3:5 is greater..

If this helps pls mark Brainliest and FOLLOW me...

Discussion

34.	Find the product of (29/4)x(35/16)x(16/7). It's multiplication of fractions
Answer» Answer: 29/4×35/16×16/7 29/4×35/1×1/7 (By DIVIDING 16 and 16 by 1) 29/4×5/1×1/1 (By dividing 35 and 7 by 7) 29/4×5 145/4 Hope it helps you. Please mark me as brainliest.

34.

Find the product of (29/4)x(35/16)x(16/7). It's multiplication of fractions

Answer»

Answer:

29/4×35/16×16/7
29/4×35/1×1/7 (By DIVIDING 16 and 16 by 1)
29/4×5/1×1/1 (By dividing 35 and 7 by 7)
29/4×5
145/4

Hope it helps you. Please mark me as brainliest.

Discussion

35.	Answer me this question plz
Answer» ANSWER: The PICTURE is not CLEAN

35.

Answer me this question plz

Answer»

ANSWER:

The PICTURE is not CLEAN

Discussion

36.	15÷8 with hole sum................
Answer» Answer: 15÷8 8)15(1.875 -8 --------- 70 - 64 ---------- 060 -56 ---------- 040 - 40 ------------- 00 Please mark the answer as BRAINLIEST!!

36.

15÷8 with hole sum................

Answer»

Answer:

15÷8

8)15(1.875

-8

---------

70

- 64

----------

060

-56

----------

040

- 40

-------------

00

Please mark the answer as BRAINLIEST!!

Discussion

37.	The number of minutes spent online by students during one day are as listed below:15,32,8,5,0,35,19,22,45,60,25,38,10,30,0,32,44,25,23,18Make a frequency table as the data, using the interval 0 -10, 10- 20, 20- 30Make a histogram of the given data.
Answer» Step-by-step EXPLANATION: HISTOGRAM FRIST MISTAKES

37.

The number of minutes spent online by students during one day are as listed below:15,32,8,5,0,35,19,22,45,60,25,38,10,30,0,32,44,25,23,18Make a frequency table as the data, using the interval 0 -10, 10- 20, 20- 30Make a histogram of the given data.

Answer»

Step-by-step EXPLANATION:

HISTOGRAM FRIST MISTAKES

Discussion

38.	Rohit works in an office and gets a salary of Rs. 12500 per month. He saves Rs. 2500 per month from his salary. Find the ratio of the following. a) his savings to his salary b) his expenditure to his salary c) his expenditure to his savings
Answer» Answer: 2500:12500 = 1:5 10000:12500 = 4:5 10000:2500 = 4:1 follow me *for* *more* *ANSWERS*

38.

Rohit works in an office and gets a salary of Rs. 12500 per month. He saves Rs. 2500 per month from his salary. Find the ratio of the following. a) his savings to his salary b) his expenditure to his salary c) his expenditure to his savings

Answer»

Answer:

2500:12500 = 1:5
10000:12500 = 4:5
10000:2500 = 4:1

follow me for more ANSWERS

Discussion

39.	18-9number line find
Answer» ANSWER: 9 . *...* *......* *.........If u got it then MARK me as BRAINLIEST and LIKE my answer and FOLLOW me and INBOX me for EDUCATIONAL chats ....*

39.

18-9number line find

Answer»

ANSWER:

9

.

...

......

.........If u got it then MARK me as BRAINLIEST and LIKE my answer and FOLLOW me and INBOX me for EDUCATIONAL chats ....

Discussion

40.	Prime factorisation of 7815 by tree method
Answer» Answer: Step-by-step EXPLANATION: Hope this answer is helpful Please MARK as the brainliest answer. Have a GREAT DAY ahead

40.

Prime factorisation of 7815 by tree method

Answer»

Answer:

Step-by-step EXPLANATION:

Hope this answer is helpful

Please MARK as the brainliest answer.

Have a GREAT DAY ahead

Discussion

41.	FIND THE REAL-LIFE APPLICATIONS OF FACTORS AND MULTIPLES WRITE THREE SITUATIONS WHERE YOU HAVE USED THESE CONCEPTS DURING YOUR HOLIDAY. EXAMPLE: WHILE ARRANGING YOUR CUPBOARD (CONCEPT OF HCF) WHILE WATCHING WATER FOUNTAIN SHOW (CONCEPT OF LCM)
Answer» ANSWER: FOLLOW me.....................

41.

FIND THE REAL-LIFE APPLICATIONS OF FACTORS AND MULTIPLES WRITE THREE SITUATIONS WHERE YOU HAVE USED THESE CONCEPTS DURING YOUR HOLIDAY. EXAMPLE: WHILE ARRANGING YOUR CUPBOARD (CONCEPT OF HCF) WHILE WATCHING WATER FOUNTAIN SHOW (CONCEPT OF LCM)

Answer»

ANSWER:

FOLLOW me.....................

Discussion

42.	12. If 2A and 2B are two adjacent angles of a parallelogram. If
Answer» Answer: 110 Step-by-step EXPLANATION: LET m 70+x=180 x=180-70 x=110

42.

12. If 2A and 2B are two adjacent angles of a parallelogram. If

Answer»

Answer:

110

Step-by-step EXPLANATION:

LET m

70+x=180

x=180-70

x=110

Discussion

43.	From his home,Rahul walks 6/7 km towards school and then returns 5/6 km on the same way towards his home toreach a landmark. At what distance will he be now from his home?
Answer» Answer: 1/42 KM from his home Step-by-step EXPLANATION: TOTAL DISTANCE from his home to school = 6/7 km He returns from his school to landmark = 5/6 km Distance from landmark to home = 6/7 - 5/6 = 1/42 km So Rahul is 1/42 km from his home

43.

From his home,Rahul walks 6/7 km towards school and then returns 5/6 km on the same way towards his home toreach a landmark. At what distance will he be now from his home?

Answer»

Answer:

1/42 KM from his home

Step-by-step EXPLANATION:

TOTAL DISTANCE from his home to school = 6/7 km

He returns from his school to landmark = 5/6 km

Distance from landmark to home = 6/7 - 5/6 = 1/42 km

So Rahul is 1/42 km from his home

Discussion

44.	Choose the correct expansion of the following. a²-b²1) (a+b)(a-b)2) (a-b)(a-b)3) (a+b)(a+b)
Answer» Answer: (a+b) (a-b) is the answer for your question. Step-by-step explanation: Hope it HELPS you...PLEASE MARK this answer as the brainliest and FOLLOW me.

44.

Choose the correct expansion of the following. a²-b²1) (a+b)(a-b)2) (a-b)(a-b)3) (a+b)(a+b)

Answer»

Answer:

(a+b) (a-b) is the answer for your question.

Step-by-step explanation:

Hope it HELPS you...PLEASE MARK this answer as the brainliest and FOLLOW me.

Discussion

45.	Rohit works in an office and gets a salary of Rs. 12500 per month. He saves Rs. 2500 per month from his salary. Find the ratio of the following. a) his savings to his salary b) his expenditure to his salary c) his expenditure to his savings
Answer» Answer: salary = Rs. 12500 saving = Rs. 2500 expenditure = 12500-2500 = Rs. 10000 a) Ratio of his SAVINGS to his salary = 2500:12500 (DIVIDED by 100) = 25:125 (divided by 25) = 1:5 b) Ratio of his expenditure to his salary = 10000:12500 (divided by 100) = 100:125 (divided by 25) = 4:5 c)Ratio of his expenditure to his savings = 10000:2500 (divided by 100) = 100:25 (divided by 25) = 4:1 Hope it helps you

45.

Rohit works in an office and gets a salary of Rs. 12500 per month. He saves Rs. 2500 per month from his salary. Find the ratio of the following. a) his savings to his salary b) his expenditure to his salary c) his expenditure to his savings

Answer»

Answer:

salary = Rs. 12500

saving = Rs. 2500

expenditure = 12500-2500

= Rs. 10000

a) Ratio of his SAVINGS to his salary

= 2500:12500 (DIVIDED by 100)

= 25:125 (divided by 25)

= 1:5

b) Ratio of his expenditure to his salary

= 10000:12500 (divided by 100)

= 100:125 (divided by 25)

= 4:5

c)Ratio of his expenditure to his savings

= 10000:2500 (divided by 100)

= 100:25 (divided by 25)

= 4:1

Hope it helps you

Discussion

46.	Compute the following products of decimal 1. 2.9 ×3.5
Answer» Answer: 10.15 is SOLUTION I GOT..

46.

Compute the following products of decimal 1. 2.9 ×3.5

Answer»

Answer:

10.15 is SOLUTION I GOT..

Discussion

47.	I am crying..no one helps me
Answer» Hello PLEASE DONT cry. It would be because the photo is not clearly VISIBLE so MAYBE no one is ANSWERING.

Discussion

48.	-7^16evaluatecorrect answer will mark as brainliest
Answer» -112 is the answer Mark me as the BRAINLEST

Discussion

49.	Solve the following equations by the trial and error method. a) 2x+ 10 = 18 b) 3(x−1) = 6 c) 5x= 15
Answer» ANSWER: a) 2x+10=18 2x+10-10=18-10 2x=8 2x/2=8/2 x=4 b)3(x-1)=6 3x-3=6 3x-3+3=6+3 3x=9 3x/3=9/3 x=3 c)5x=15 5x/5=15/5 x=3

49.

Solve the following equations by the trial and error method. a) 2x+ 10 = 18 b) 3(x−1) = 6 c) 5x= 15

Answer»

ANSWER:

a) 2x+10=18

2x+10-10=18-10

2x=8

2x/2=8/2

x=4

b)3(x-1)=6

3x-3=6

3x-3+3=6+3

3x=9

3x/3=9/3

x=3

c)5x=15

5x/5=15/5

x=3

Discussion

50.	Find the smallest number which leaves remainders 2, 6 and 12 when divided by 22, 26 and 32 respectively please send me important
Answer» Here (22-2)=20, (26-6)=20, (32-12) = 20. .°. REQUIRED no. = (LCM 22,26,32)-20 22 = 2×11 26 = 2×13 32 = 2×2×2×2×2 = 2^5 LCM = highest power of all FACTORS = 2^5 ×11×13 = 4576 required no. = 4576-20 = 4556 mark brainliest and follow ✌️✌️

50.

Find the smallest number which leaves remainders 2, 6 and 12 when divided by 22, 26 and 32 respectively please send me important

Answer»

Here (22-2)=20, (26-6)=20, (32-12) = 20.

.°. REQUIRED no. = (LCM 22,26,32)-20

22 = 2×11

26 = 2×13

32 = 2×2×2×2×2 = 2^5

LCM = highest power of all FACTORS

= 2^5 ×11×13 = 4576

required no. = 4576-20 = 4556

mark brainliest and follow ✌️✌️

Discussion

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I am crying..no one helps me

-7^16evaluatecorrect answer will mark as brainliest

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