98971 + Interview Questions in Primary School in Math

1.	HELPPPPPPPPPPPPPPPPPPPPPP
Answer» ANSWER: 3rd is your answer Step-by-step EXPLANATION: have a NICE DAY

1.

HELPPPPPPPPPPPPPPPPPPPPPP

Answer»

ANSWER:

3rd is your answer

Step-by-step EXPLANATION:

have a NICE DAY

Discussion

2.	(-5)⁴×(3/5)⁴pls answer fast
Answer» ANSWER: The CORRECT answer is 81. HOPE it HELPS

2.

(-5)⁴×(3/5)⁴pls answer fast

Answer»

ANSWER:

The CORRECT answer is 81. HOPE it HELPS

Discussion

3.	Factoriseb) 2x² + x – 3c)12y² - 20y + 3d) 25 - x²
Answer» ANSWER: B) the answer is (2x+3)×(x-1) c) the answer is (6y-1)×(2y-3) d) the answer is (5-x)×(5+x) Step-by-step explanation: PLEASE MARK as BRAINLIST

3.

Factoriseb) 2x² + x – 3c)12y² - 20y + 3d) 25 - x²

Answer»

ANSWER:

B) the answer is (2x+3)×(x-1)

c) the answer is (6y-1)×(2y-3)

d) the answer is (5-x)×(5+x)

Step-by-step explanation:

PLEASE MARK as BRAINLIST

Discussion

4.	The radius and height of a right circular cylinder are 4 and 14cm respectively. Find the curved surface area and total surface area of the cylinder.
Answer» CSA=2πrh =>222/7714 =>616cm² TSA=πr²h =>22/77714 =>2156cm².

4.

The radius and height of a right circular cylinder are 4 and 14cm respectively. Find the curved surface area and total surface area of the cylinder.

Answer»

CSA=2πrh

=>2*22/7*7*14

=>616cm²

TSA=πr²h

=>22/7*7*7*14

=>2156cm².

Discussion

5.	The area of a circular lid to a tank is 550 sq ft. Find the radius of the lid.(rounded to the nearest hundredths)
Answer» ANSWER: A=πr2 r=√A/π r=√550/π r=13.23142ft

5.

The area of a circular lid to a tank is 550 sq ft. Find the radius of the lid.(rounded to the nearest hundredths)

Answer»

ANSWER:

A=πr2

r=√A/π

r=√550/π

r=13.23142ft

Discussion

6.	Identify each statement as True or False based on the figure below.
Answer» ANSWER REFERS to the above ATTACHMENT ☝

Discussion

7.	Mallika had 1/8th of a cold drink and her friend took 3/8 th of it.How much cold drink is left in the bottle?Please give solution and explain how.I will mark as brainliest.
Answer» Answer: 40/64 Step-by-step EXPLANATION: I GUESS!

7.

Mallika had 1/8th of a cold drink and her friend took 3/8 th of it.How much cold drink is left in the bottle?Please give solution and explain how.I will mark as brainliest.

Answer»

Answer:

40/64

Step-by-step EXPLANATION:

I GUESS!

Discussion

8.	-10, 11, -11, 8, -8, 9, 12, -9, -12, 10Arrange the above mentioned number in ascending order Arrange the above mentioned number in descendingorder
Answer» ascending ORDER -12,-11,-10,-9,-8,8,9,10,11,12 descending order-12,11,10,9,8,-8,-9,-10,-11,-12 hope it helps please mark me as brainliest

8.

-10, 11, -11, 8, -8, 9, 12, -9, -12, 10Arrange the above mentioned number in ascending order Arrange the above mentioned number in descendingorder

Answer»

ascending ORDER -12,-11,-10,-9,-8,8,9,10,11,12

descending order-12,11,10,9,8,-8,-9,-10,-11,-12

hope it helps please mark me as brainliest

Discussion

9.	What is the formula of percentage?
Answer» ANSWER: LET you have 20 out of 50 20/50×100 mark as BRILLIANT

9.

What is the formula of percentage?

Answer»

ANSWER:

LET you have 20 out of 50

20/50×100

mark as BRILLIANT

Discussion

10.	Find the Lcm of-:1)10,4,22)16,18,12,143)13,12,14,15,16,17,18,19,104)6,12,45)18,6,3Army here
Answer» 1) 20 2) 1008 3) 2,11,62,960 4) 12 5) 18 stay SAFE and str£am EGO <3

10.

Find the Lcm of-:1)10,4,22)16,18,12,143)13,12,14,15,16,17,18,19,104)6,12,45)18,6,3Army here

Answer»

1) 20

2) 1008

3) 2,11,62,960

4) 12

5) 18

stay SAFE and str£am EGO <3

Discussion

11.	Please _____ the book from the floor
Answer» Answer: Pick can be the answer. I hope CORRECT answer Mark as BRAINLIST

11.

Please _____ the book from the floor

Answer»

Answer:

Pick can be the answer. I hope CORRECT answer

Mark as BRAINLIST

Discussion

12.	2,53,45Pythagorean Converse
Answer» Answer: Step-by-step explanation: For formation if a right ANGLE triangle , it must fulfill the criteria of Pythagoras theorem . So , let us see :- (53)² = (28)² + (45)² => 2809 = 784 + 2025 => 2809 = 2809 so , h² = p² + b² Hence , it will FORM right angled triangle .

12.

2,53,45Pythagorean Converse

Answer»

Answer:

Step-by-step explanation:

For formation if a right ANGLE triangle , it must fulfill the criteria of Pythagoras theorem .

So , let us see :-

(53)² = (28)² + (45)²

=> 2809 = 784 + 2025

=> 2809 = 2809

so , h² = p² + b²

Hence , it will FORM right angled triangle .

Discussion

13.	If the area of the circle isFind the area of shaded portion.Want with formula
Answer» Answer: Draw RM⊥AB AM=MB= 2 AB =18 cm AP=PM=MQ=QB= 2 18 =9 cm MR=AM=18㎝ CM=RM−CR=18−r PC=PE+EC=9+r In triangle CMP PC 2 =CM 2 +PM 2 ⇒(9+r) 2 =(18−r) 2 +9 2 ⇒81+18r+r 2 =324−36r+r 2 +81⇒54r=324⇒r=6 cm ∴Area of shaded region=area of semi circle AB−2 area of semi circle-area of circle = 2 1 π×18 2 −2× 2 1 ×π×9 2 −π×6 2 Step-by-step explanation:

13.

If the area of the circle isFind the area of shaded portion.Want with formula

Answer»

Answer:

Draw RM⊥AB

AM=MB=

2

AB

=18 cm

AP=PM=MQ=QB=

2

18

=9 cm

MR=AM=18㎝

CM=RM−CR=18−r

PC=PE+EC=9+r

In triangle CMP

PC

2

=CM

2

+PM

2

⇒(9+r)

2

=(18−r)

2

+9

2

⇒81+18r+r

2

=324−36r+r

2

+81⇒54r=324⇒r=6 cm

∴Area of shaded region=area of semi circle AB−2 area of semi circle-area of circle

=

2

1

π×18

2

−2×

2

1

×π×9

2

−π×6

2

Step-by-step explanation:

Discussion

14.	PeacadhA collon carton of lenth 20cm, breadth on loomand height 30cm is put filled with funce, finsthe volume of juice that will will fill thecartonZ
Answer» Step-by-step EXPLANATION: Cuboidal fish TANK: LENGTH L = 30 cm. Breadth = B = 20 cm. HEIGHT = H = 20 cm If the tank is 3/4 th full of water, it means that it is filled up to 3/4th of its height. So water is filled upto h = 20 cm * 3/4 = 15 cm. Surface area of the FLOOR of the tank = L * B = 30 * 20 = 600 cm² Surface area of the walls of the tank up to height = h = 15 cm: = 2 L h + 2 B h = 2 * 30 cm * 15 cm + 2 * 20 cm * 15 cm = 1500 cm² Total area in contact with water = 600 + 1500 = 2, 100 cm² please mark me as brainlist

14.

PeacadhA collon carton of lenth 20cm, breadth on loomand height 30cm is put filled with funce, finsthe volume of juice that will will fill thecartonZ

Answer»

Step-by-step EXPLANATION:

Cuboidal fish TANK:

LENGTH L = 30 cm. Breadth = B = 20 cm. HEIGHT = H = 20 cm

If the tank is 3/4 th full of water, it means that it is filled up to 3/4th of its height. So water is filled upto h = 20 cm * 3/4 = 15 cm.

Surface area of the FLOOR of the tank = L * B = 30 * 20 = 600 cm²

Surface area of the walls of the tank up to height = h = 15 cm:

= 2 L h + 2 B h

= 2 * 30 cm * 15 cm + 2 * 20 cm * 15 cm

= 1500 cm²

Total area in contact with water = 600 + 1500 = 2, 100 cm²

please mark me as brainlist

Discussion

15.	Hipls help me out in this question
Answer» Answer: Step-by-step explanation: a) $\frac{1}{3} +\frac{2}{3} +\frac{3}{6} \\=\frac{3}{3} +\frac{3}{6} \\LCM=6\\\frac{3}{3} =\frac{6}{6} \\so,\frac{6}{6}+\frac{3}{6} =\frac{9}{6}$ b) $\frac{3}{18} +(\frac{1}{3} +\frac{8}{9}) \\lcm=9\\\frac{1}{3}=\frac{3}{9} \\so,\frac{3}{18}+\frac{3}{9} +\frac{8}{9} \\=\frac{3}{18} +\frac{11}{9} \\LCM=18\\\frac{11}{9} =\frac{22}{18} \\SO,\frac{3}{18} +\frac{22}{18} =\frac{25}{18}$ SIMILALRLY DO THE REST I'M NOT GIVING U FULL ANSWERS CAUSE IF I GIVE THAT U WONT LEARN ANYTHING... SOI SHOWED YOU 2 ANSWERS U CAN SOLVE THE REST 2... HAPPY 2 HELP :)

15.

Hipls help me out in this question

Answer»

Answer:

Step-by-step explanation:

a) $\frac{1}{3} +\frac{2}{3} +\frac{3}{6} \\=\frac{3}{3} +\frac{3}{6} \\LCM=6\\\frac{3}{3} =\frac{6}{6} \\so,\frac{6}{6}+\frac{3}{6} =\frac{9}{6}$

b)

$\frac{3}{18} +(\frac{1}{3} +\frac{8}{9}) \\lcm=9\\\frac{1}{3}=\frac{3}{9} \\so,\frac{3}{18}+\frac{3}{9} +\frac{8}{9} \\=\frac{3}{18} +\frac{11}{9} \\LCM=18\\\frac{11}{9} =\frac{22}{18} \\SO,\frac{3}{18} +\frac{22}{18} =\frac{25}{18}$

SIMILALRLY DO THE REST

I'M NOT GIVING U FULL ANSWERS CAUSE IF I GIVE THAT U WONT LEARN ANYTHING... SOI SHOWED YOU 2 ANSWERS U CAN SOLVE THE REST 2...

HAPPY 2 HELP :)

Discussion

16.	Name a no. which uas not a negative or positive sign.
Answer» Answer: 0 Step-by-step EXPLANATION: $\rightarrow$ 0 is neither a NEGATIVE nor a POSTIVE INTEGER.

16.

Name a no. which uas not a negative or positive sign.

Answer»

Answer:

0

Step-by-step EXPLANATION:

$\rightarrow$ 0 is neither a NEGATIVE nor a POSTIVE INTEGER.

Discussion

17.	Simplify3×10^22^2×5^3
Answer» Answer: 2=26 hala ss s s s ssssssssss s s s

17.

Simplify3×10^22^2×5^3

Answer»

Answer:

2=26

hala

ss

s

ssssssssss

s

Discussion

18.	Take a number add 5 to it and then multiply the result by 6
Answer» ANSWER: 30 answer 5×6=30 this is ANS

18.

Take a number add 5 to it and then multiply the result by 6

Answer»

ANSWER:

30 answer 5×6=30 this is ANS

Discussion

19.	Convert into decimali. 21/8ii. 31/4
Answer» ANSWER: Have YOI UNDERSTOOD the answer? Any doubt you must COMMENT to me ok?

19.

Convert into decimali. 21/8ii. 31/4

Answer»

ANSWER:

Have YOI UNDERSTOOD the answer? Any doubt you must COMMENT to me ok?

Discussion

20.	(-2;-3). हा बिंदू कोणत्या चरणात असेल? (1 ). पहिल्या (२) दुसऱ्या (3). तिसऱ्या (4) चौथ्या
Answer» Step-by-step EXPLANATION: इसका उत्तर है तीसरा अर्थात इसने

20.

(-2;-3). हा बिंदू कोणत्या चरणात असेल? (1 ). पहिल्या (२) दुसऱ्या (3). तिसऱ्या (4) चौथ्या

Answer»

Step-by-step EXPLANATION:

इसका उत्तर है तीसरा अर्थात इसने

Discussion

21.	Predecessor and SuccessorPredecessorThe number just beforethe given number is itspredecessor. We subtract1 from the number to getits predecessorNu-berSuccessorThe number ist after thegiven number is itsSuccessor. We odd 1 toThe number to get itssuccessor.what is give me sum question 3 class math
Answer» ANSWER: PREDECESSOR and SUCCESSOR

21.

Predecessor and SuccessorPredecessorThe number just beforethe given number is itspredecessor. We subtract1 from the number to getits predecessorNu-berSuccessorThe number ist after thegiven number is itsSuccessor. We odd 1 toThe number to get itssuccessor.what is give me sum question 3 class math

Answer»

ANSWER:

PREDECESSOR and SUCCESSOR

Discussion

22.	At the dairy the milkman prepairs 25 litre of lassi if by the end of the day the milkman is able to sell 13.907 litre find out the the amount of lassi left at the dairy ?
Answer» Answer: 11.093 L Step-by-step explanation: Quantity of LASSI at the START of the day= 25 L Quantity of Lassi the milkman sells= 13.907 L Quantity of Lassi LEFT at the diary= 25-13.907 = 11.093 L Hence, the amount left at the diary is 11.093 L HOPE THIS HELPS :)

22.

At the dairy the milkman prepairs 25 litre of lassi if by the end of the day the milkman is able to sell 13.907 litre find out the the amount of lassi left at the dairy ?

Answer»

Answer:

11.093 L

Step-by-step explanation:

Quantity of LASSI at the START of the day= 25 L

Quantity of Lassi the milkman sells= 13.907 L

Quantity of Lassi LEFT at the diary= 25-13.907

= 11.093 L

Hence, the amount left at the diary is 11.093 L

HOPE THIS HELPS :)

Discussion

23.	The total number of terms in the expansion of (a+b+c+d)^n where n€N
Answer» ANSWER: *BHAK bhak bhak bhak bhak*

23.

The total number of terms in the expansion of (a+b+c+d)^n where n€N

Answer»

ANSWER:

BHAK bhak bhak bhak bhak

Discussion

24.	Q. Find the correct answer:- (It's an algebraic question)1. m-6 = -13 The Options Are:-a) 7b) -7c) 6 d) -6
Answer» Answer: -7 is the CORRECT answer m-6 = 13 m-6+6 = 13 + 6 ADD the NUMBERS m = -7 Hope it helps you Good EVENING Happy Basant panchami

24.

Q. Find the correct answer:- (It's an algebraic question)1. m-6 = -13 The Options Are:-a) 7b) -7c) 6 d) -6

Answer»

Answer:

-7 is the CORRECT answer

m-6 = 13

m-6+6 = 13 + 6

ADD the NUMBERS

m = -7

Hope it helps you

Good EVENING

Happy Basant panchami

Discussion

25.	What is the meaning of descending order
Answer» Answer: Descending Order. Descending Order. ARRANGING numbers (or other ITEMS) in descending order means to arrange them from largest to smallest. Example 1 (with Numbers) The numbers 12, 5, 7, 10, 1, 160 arranged in descending order are 160, 12, 10, 7, 5, 1.

25.

What is the meaning of descending order

Answer»

Answer:

Descending Order. Descending Order. ARRANGING numbers (or other ITEMS) in descending order means to arrange them from largest to smallest. Example 1 (with Numbers) The numbers 12, 5, 7, 10, 1, 160 arranged in descending order are 160, 12, 10, 7, 5, 1.

Discussion

26.	Simplify (-45/60-15/20)×(9/-12- -8/12)×(9/12+16/12×(+21/28)please answer step wise stepin a simple way
Answer» ANSWER: ccigicuduffivovf OFFICE K fifogpboo

26.

Simplify (-45/60-15/20)×(9/-12- -8/12)×(9/12+16/12×(+21/28)please answer step wise stepin a simple way

Answer»

ANSWER:

ccigicuduffivovf OFFICE K fifogpboo

Discussion

27.	Find the area of figure ABCP. (Take π= 22/7)On diameter AC a semi-circle is drawn.AB = BC = 7 cm.
Answer» Answer: HOPE IT HELPS YOU *PLEASE MARK AS BRANLIEST*

27.

Find the area of figure ABCP. (Take π= 22/7)On diameter AC a semi-circle is drawn.AB = BC = 7 cm.

Answer»

Answer:

HOPE IT HELPS YOU

PLEASE MARK AS BRANLIEST

Discussion

28.	39y3(50y2-98)26y2(5y-7)
Answer» $39 {}^{3} (50y {}^{2} - 98) = 1950y {}^{5} - 3822y {}^{3}$ $26y {}^{2} (5y - 7) = 130y {}^{3} - 182y {}^{2}$

28.

39y3(50y2-98)26y2(5y-7)

Answer»

$39 {}^{3} (50y {}^{2} - 98) = 1950y {}^{5} - 3822y {}^{3}$

$26y {}^{2} (5y - 7) = 130y {}^{3} - 182y {}^{2}$

Discussion

29.	Parul borrowed Rs.6600 from Sheela for 3 years at 12% per annum. Calculate the amountshe has to pay back to Sheela after 3 yearsplease answer step wise step
Answer» Answer: 12% of 6600 is 792. Now 792 PER YEAR so 792*3 + 6600 = 8976. So PARUL will RETURN 8976 Rupees to sheela

29.

Parul borrowed Rs.6600 from Sheela for 3 years at 12% per annum. Calculate the amountshe has to pay back to Sheela after 3 yearsplease answer step wise step

Answer»

Answer:

12% of 6600 is 792. Now 792 PER YEAR so 792*3 + 6600 = 8976. So PARUL will RETURN 8976 Rupees to sheela

Discussion

30.	What must be added to the difference of 6 5329 and 51425 to make it equal to their sum
Answer» Answer: 102,850 Step-by-step EXPLANATION: SUM = 65329+51425 =116,754 difference = 65329-51425 =13,904 =116,754-13,904 =102,850

30.

What must be added to the difference of 6 5329 and 51425 to make it equal to their sum

Answer»

Answer:

102,850

Step-by-step EXPLANATION:

SUM = 65329+51425

=116,754

difference = 65329-51425

=13,904

=116,754-13,904

=102,850

Discussion

31.	The lengths of three logs are 3x + 5 meters, 4x - 1 meters and 2x + 9 meters. Findthe sum of their lengths.
Answer» Answer: nine three eight nine nine SEVEN FOUR sixth eight TWO OK my no

31.

The lengths of three logs are 3x + 5 meters, 4x - 1 meters and 2x + 9 meters. Findthe sum of their lengths.

Answer»

Answer:

nine three eight nine nine SEVEN FOUR sixth eight TWO OK my no

Discussion

32.	A room is 7 m 80 cm long and 5 m 20 cm broad. By how much is the roomlonger than its breadth?
Answer» Answer: 260cm Step-by-step explanation: FIRST convert the length and BREADTH into same units. given length = 7m 80cm = 7 X 100cm + 80cm = 780cm since 1m = 100cm given breadth = 5m 20cm = 5x100cm + 20cm = 520cm Length - breadth = 780-520 = 260 cm. so the room's length is longer than it's breadth by 260cm or 2m 80cm

32.

A room is 7 m 80 cm long and 5 m 20 cm broad. By how much is the roomlonger than its breadth?

Answer»

Answer: 260cm

Step-by-step explanation:

FIRST convert the length and BREADTH into same units.

given length = 7m 80cm = 7 X 100cm + 80cm = 780cm

since 1m = 100cm

given breadth = 5m 20cm = 5x100cm + 20cm = 520cm

Length - breadth = 780-520 = 260 cm.

so the room's length is longer than it's breadth by 260cm or 2m 80cm

Discussion

33.	If the length and breadth of a rectangle are doubled, by what percentage is the area increased
Answer» ANSWER: it is INCREASED by 4 TIMES. (proved by rubred FORMULA

33.

If the length and breadth of a rectangle are doubled, by what percentage is the area increased

Answer»

ANSWER:

it is INCREASED by 4 TIMES. (proved by rubred FORMULA

Discussion

34.	7x^3-3y^3+2x^2 y-4xy^2A. 7x^3+2x^2 y-4xy^2-3y^3 C. 7x^3-4xy^2+2x^2 y-3y^3B. 7x^3+2x^2 y-4xy^2 D. -3y^3+2x^2 y-4xy^2+7x^3
Answer» Answer: ANSWER: Adding the given EXPRESSIONS, we have (i) X3- 2x2y + 3xy2- y3+ 2X3- 5xy2 + 3x2y- 4y3 Collecting positive and negative like TERMS together, we get x3+ 2x3- 2x2y + 3x2y + 3xy2- 5xy2 - y3 - 4y3 = 3x3 + x2y - 2xy2 - 5y3 (ii) (a4- 2a3b + 3ab3 + 4a2b2 + 3b4) + (-2a4- 5ab3 + 7A3B - 6a2b2 + b4) a4- 2a3b + 3ab3 + 4a2b2 + 3b4 - 2a4- 5ab3 + 7a3b - 6a2b2 + b4 Collecting positive and negative like terms together, we get a4 - 2a4 - 2a3b + 7a3b + 3ab3 - 5ab3 + 4a2b2 - 6a2b2 + 3b4 + b4 = - a4 + 5a3b - 2ab3 - 2a2b2 + 4b4

34.

7x^3-3y^3+2x^2 y-4xy^2A. 7x^3+2x^2 y-4xy^2-3y^3 C. 7x^3-4xy^2+2x^2 y-3y^3B. 7x^3+2x^2 y-4xy^2 D. -3y^3+2x^2 y-4xy^2+7x^3

Answer»

Answer:

ANSWER:

Adding the given EXPRESSIONS, we have

(i) X3- 2x2y + 3xy2- y3+ 2X3- 5xy2 + 3x2y- 4y3

Collecting positive and negative like TERMS together, we get

x3+ 2x3- 2x2y + 3x2y + 3xy2- 5xy2 - y3 - 4y3

= 3x3 + x2y - 2xy2 - 5y3

(ii) (a4- 2a3b + 3ab3 + 4a2b2 + 3b4) + (-2a4- 5ab3 + 7A3B - 6a2b2 + b4)

a4- 2a3b + 3ab3 + 4a2b2 + 3b4 - 2a4- 5ab3 + 7a3b - 6a2b2 + b4

Collecting positive and negative like terms together, we get

a4 - 2a4 - 2a3b + 7a3b + 3ab3 - 5ab3 + 4a2b2 - 6a2b2 + 3b4 + b4

= - a4 + 5a3b - 2ab3 - 2a2b2 + 4b4

Discussion

35.	This is my work sheet please tell me anwers if you know
Answer» Answer: 1. 14 cm 2. 16 cm 3. 18 cm 4. 18 cm 5. 18 cm 6. 14 cm PLS MARK ME AS THE BRAINLIEST

35.

This is my work sheet please tell me anwers if you know

Answer»

Answer:

1. 14 cm

2. 16 cm

3. 18 cm

4. 18 cm

5. 18 cm

6. 14 cm

PLS MARK ME AS THE BRAINLIEST

Discussion

36.	(e) x2 + y2 – 3 from 5x2 - 7y2 + 5
Answer» ANSWER: this the CORRECT answer I hope it helps you to SOLVE your question DEAR

36.

(e) x2 + y2 – 3 from 5x2 - 7y2 + 5

Answer»

ANSWER:

this the CORRECT answer I hope it helps you to SOLVE your question DEAR

Discussion

37.	Find n if 5 to the power 12=125 to the power n
Answer» ANSWER: N=4 Step-by-step EXPLANATION: ${5}^{12} = {125}^{n} \\ \\ = > {5}^{12} = { ( {5}^{3} )}^{n} \\ = > {5}^{12} = {({5}^{3})}^{4} \\ = > {5}^{12} = {5}^{12}$ THEREFORE, n = 4

37.

Find n if 5 to the power 12=125 to the power n

Answer»

ANSWER:

N=4

Step-by-step EXPLANATION:

${5}^{12} = {125}^{n} \\ \\ = > {5}^{12} = { ( {5}^{3} )}^{n} \\ = > {5}^{12} = {({5}^{3})}^{4} \\ = > {5}^{12} = {5}^{12}$

THEREFORE, n = 4

Discussion

38.	The solution of the equation (x+2)² equal to (x-2)²
Answer» Step-by-step EXPLANATION: $(x + 2) {}^{2} = (x - 2) {}^{2} \\ x {}^{2} + 4 + 4x = x {}^{2} + 4 - 4x \\ 4x = - 4x \\ 8x = 0 \\ x = 0$

38.

The solution of the equation (x+2)² equal to (x-2)²

Answer»

Step-by-step EXPLANATION:

$(x + 2) {}^{2} = (x - 2) {}^{2} \\ x {}^{2} + 4 + 4x = x {}^{2} + 4 - 4x \\ 4x = - 4x \\ 8x = 0 \\ x = 0$

Discussion

39.	Find the cost of polishing a circular table top of diameter 2.2m if the rate of polishing is 20 per m sq
Answer» Answer: 75.988/- Step-by-step EXPLANATION: TOTAL AREA to be polished=area of CIRCULAR table area of CIRCLE = πr² 2r=diameter 2r=2.2 r=2.2/2 r=1.1 area = 3.14 × (1.1)² = 3.14×1.21 = 3.7994m² 1m²=20/- 3.7994 = (?) 3.7994×20 = 75.988/-

39.

Find the cost of polishing a circular table top of diameter 2.2m if the rate of polishing is 20 per m sq

Answer»

Answer:

75.988/-

Step-by-step EXPLANATION:

TOTAL AREA to be polished=area of CIRCULAR table

area of CIRCLE = πr²

2r=diameter

2r=2.2

r=2.2/2

r=1.1

area = 3.14 × (1.1)²

= 3.14×1.21

= 3.7994m²

1m²=20/-

3.7994 = (?)

3.7994×20 = 75.988/-

Discussion

40.	987 + 987 add the following
Answer» The ANSWER will be 987 + 987 = 1974

40.

987 + 987 add the following

Answer»

The ANSWER will be 987 + 987

= 1974

Discussion

41.	1 Find area of a rectangle which has the following dimensions 25 m by 12 m
Answer» ANSWER: HOPE it HELPS you Step-by-step EXPLANATION: LENGTH of the rectangle=25m breadth of the rectangle=12m area of the rectangle=length×breadth =25m×12m =300m²

41.

1 Find area of a rectangle which has the following dimensions 25 m by 12 m

Answer»

ANSWER:

HOPE it HELPS you

Step-by-step EXPLANATION:

LENGTH of the rectangle=25m

breadth of the rectangle=12m

area of the rectangle=length×breadth

=25m×12m

=300m²

Discussion

42.	Write the following equations in statement forma) 4a + 7 = 15 b) 3m – 2 = 13
Answer» Answer: Step-by-step EXPLANATION: b] 3m - 2 = 13 solution= m=5 *35-2=13 because 35= 15 and 15-2 is 13* i hope it helped you i m 11 YEARS old and i dont know how to answer (a) PART. so sorry.

42.

Write the following equations in statement forma) 4a + 7 = 15 b) 3m – 2 = 13

Answer»

Answer:

Step-by-step EXPLANATION:

b] 3m - 2 = 13

solution=

m=5

3*5-2=13

because 3*5= 15 and 15-2 is 13

i hope it helped you i m 11 YEARS old and i dont know how to answer (a) PART. so sorry.

Discussion

43.	U the width of the room.* 15 m long with a carpet of wlaul8. The length and breadth of a rectangular piece of land are in the ratio of 5:3. If the total costof fencing it at 24 per metre is 9600, find its length and breadth.
Answer» Step-by-step EXPLANATION: PLEASE GIVE me THANKS and MARK me brilient ☺️

43.

U the width of the room.* 15 m long with a carpet of wlaul8. The length and breadth of a rectangular piece of land are in the ratio of 5:3. If the total costof fencing it at 24 per metre is 9600, find its length and breadth.

Answer»

Step-by-step EXPLANATION:

PLEASE GIVE me THANKS and MARK me brilient ☺️

Discussion

44.	Find the value of (4°+49) x 22
Answer» ANSWER: I don't KNOW Step-by-step EXPLANATION:

44.

Find the value of (4°+49) x 22

Answer»

ANSWER:

I don't KNOW

Step-by-step EXPLANATION:

Discussion

45.	Two sides being given, calculate the third side marked by a letter in each right angled triangle.
Answer» Answer: its QUITE SIMPLE use the PYTHAGORAS theorem $x \: = \: \sqrt{65}$ AND $a \: = \: \sqrt{50}$ HOPE it helps PLS MARK AS BRAINLIEST!!!!!!!

45.

Two sides being given, calculate the third side marked by a letter in each right angled triangle.

Answer»

Answer:

its QUITE SIMPLE

use the PYTHAGORAS theorem

$x \: = \: \sqrt{65}$

AND

$a \: = \: \sqrt{50}$

HOPE it helps

PLS MARK AS BRAINLIEST!!!!!!!

Discussion

46.	Convert the following into decimal fractions and add them. ‘Two and a half kilometer’ and ‘one and a half kilometer’.
Answer» Answer: 3000/1000 these is the SUM and DECIMAL FRACTION

46.

Convert the following into decimal fractions and add them. ‘Two and a half kilometer’ and ‘one and a half kilometer’.

Answer»

Answer:

3000/1000 these is the SUM and DECIMAL FRACTION

Discussion

47.	If the diameter is 1.2m than what is radius, circumference and area?
Answer» ANSWER: $radius = 0.6 \: m \\ \\ circumference = 3.77 \: m \\ \\ area = 1.13 \: {m}^{2}$ Step-by-step EXPLANATION: $d = 1.2 \: m \\ r = 0.6 \: m \\ \\ circumferenc = 2\pi \times r = 2 \times \frac{22}{7} \times 0.6 \\ \\ = \frac{264}{70} \\ \\ = 3.77 \: m \\ \\ area = \pi {r}^{2} = \frac{22}{7} \times {0.6}^{2} \\ \\ = 1.13 \: {m}^{2}$

47.

If the diameter is 1.2m than what is radius, circumference and area?

Answer»

ANSWER:

$radius = 0.6 \: m \\ \\ circumference = 3.77 \: m \\ \\ area = 1.13 \: {m}^{2}$

Step-by-step EXPLANATION:

$d = 1.2 \: m \\ r = 0.6 \: m \\ \\ circumferenc = 2\pi \times r = 2 \times \frac{22}{7} \times 0.6 \\ \\ = \frac{264}{70} \\ \\ = 3.77 \: m \\ \\ area = \pi {r}^{2} = \frac{22}{7} \times {0.6}^{2} \\ \\ = 1.13 \: {m}^{2}$

Discussion

48.	1⅙+_______=1½Please tell the answer
Answer» ANSWER: this is the answer HOPE it HELPS

48.

1⅙+_______=1½Please tell the answer

Answer»

ANSWER:

this is the answer HOPE it HELPS

Discussion

49.	Write an equation for which 3 is the solution
Answer» ANSWER: 9/3 = 3 Step-by-step explanation: 9/3 = 3 so it's answer and a EASY EQUATION

49.

Write an equation for which 3 is the solution

Answer»

ANSWER:

9/3 = 3

Step-by-step explanation:

9/3 = 3 so it's answer and a EASY EQUATION

Discussion

50.	Multiple 343/729 and 9/3 and express the result in exponential fromAns❓option A) (7/9) 3 option B) (7/9) 2 option C) (9/7) 3 option D) (9/7) 2
Answer» ANSWER: yhnythbytb Step-by-step EXPLANATION:

50.

Multiple 343/729 and 9/3 and express the result in exponential fromAns❓option A) (7/9) 3 option B) (7/9) 2 option C) (9/7) 3 option D) (9/7) 2

Answer»

ANSWER:

yhnythbytb

Step-by-step EXPLANATION:

Discussion

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