98971 + Interview Questions in Primary School in Math

1.	The tens place digit of a number is 4 more than the unit place digit.The number formed by interchanging the digits is 36 more than the original number. Find how many such numbers exist.
Answer» Answer: 2 NUMBER can be EXIT as your QUESTION

1.

The tens place digit of a number is 4 more than the unit place digit.The number formed by interchanging the digits is 36 more than the original number. Find how many such numbers exist.

Answer»

Answer:

2 NUMBER can be EXIT as your QUESTION

Discussion

2.	Similarities between a parallelogram and a rhombus
Answer» HEY ! HERE IS UR ANSWER, It is known that both the RHOMBUS and the parallelogram are considered as the quadrilateral as they have FOUR SIDES. In a parallelogram, the OPPOSITE sides are parallel, so that the opposite ANGLES are also equal. But in rhombus, all the four sides are equal. HOPE IT HELP U

2.

Similarities between a parallelogram and a rhombus

Answer»

HEY !

HERE IS UR ANSWER,

It is known that both the RHOMBUS and the parallelogram are considered as the quadrilateral as they have FOUR SIDES. In a parallelogram, the OPPOSITE sides are parallel, so that the opposite ANGLES are also equal. But in rhombus, all the four sides are equal.

HOPE IT HELP U

Discussion

3.	Three numbers whose decimal expansion are non recurring root 3 how to solve this??
Answer» ANSWER: TYPE your question... 10th Maths Real Numbers Decimal Representation of Rational Numbers Write three numbers whose d... MATHS Write three numbers whose decimal expansions are NON terminating and non recurring December 20, 2019avatar Amrin Abraham SHARE ANSWER here are the three numbers whose decimal expansion are non terminating and non recurring:- 1) 2 =1.4142......... 2) 3 =1.73205...... 3) 5 =2.236...... these values are non terminating and non recurring. thus, we say them as irrational numbers. IRRATIONAL NUMBERS:- 1)The numbers which cannot be written in p/Q form and KNOWN as irrational numbers. 2) the decimals which are non terminating and non recurring are known as irrational numbers. 3) is the natural number "n" is not a square number, then the square ROOT of the "n" is an irrational number.

3.

Three numbers whose decimal expansion are non recurring root 3 how to solve this??

Answer»

ANSWER:

TYPE your question...

10th

Maths

Real Numbers

Decimal Representation of Rational Numbers

Write three numbers whose d...

MATHS

Write three numbers whose decimal expansions are NON terminating and non recurring

December 20, 2019avatar

Amrin Abraham

SHARE

ANSWER

here are the three numbers whose decimal expansion are non terminating and non recurring:-

1)

2

=1.4142.........

2)

3

=1.73205......

3)

5

=2.236......

these values are non terminating and non recurring.

thus, we say them as irrational numbers.

IRRATIONAL NUMBERS:-

1)The numbers which cannot be written in p/Q form and KNOWN as irrational numbers.

2) the decimals which are non terminating and non recurring are known as irrational numbers.

3) is the natural number "n" is not a square number, then the square ROOT of the "n" is an irrational number.

Discussion

4.	10. The temperature of a place at 6 p.m. is 12°C above zero. If it decreases at the rate ofper hour till 6 à.m., the next day, at what time would the temperature be 2°C below zero?What will be the temperature at 6 a.m.?
Answer» Step-by-step explanation: sister's name is the only PERSON to whom you have a DAUGHTER who was 8 years old MAN and a member who is not shown to have as much

4.

10. The temperature of a place at 6 p.m. is 12°C above zero. If it decreases at the rate ofper hour till 6 à.m., the next day, at what time would the temperature be 2°C below zero?What will be the temperature at 6 a.m.?

Answer»

Step-by-step explanation:

sister's name is the only PERSON to whom you have a DAUGHTER who was 8 years old MAN and a member who is not shown to have as much

Discussion

5.	a printing shop charges rs 0.55 for pring each photo graph and rs 2.50 as service charge .mr singh prints 40 photographs ho w much does he have to pay ... answer fast. iwill mark brainliest.. with solution please
Answer» Answer: he had to PAY 24.5rs or 25 APPROXIMATELY if my answer is right PLEASE MARK me as brainlliest

5.

a printing shop charges rs 0.55 for pring each photo graph and rs 2.50 as service charge .mr singh prints 40 photographs ho w much does he have to pay ... answer fast. iwill mark brainliest.. with solution please

Answer»

Answer:

he had to PAY 24.5rs or 25 APPROXIMATELY if my answer is right PLEASE MARK me as brainlliest

Discussion

6.	The sum of two rational numbers is (-3/7). If one of the number is (-5/8) find the other.
Answer» ANSWER: SEE in the ATTACHMENT HOPE it is USEFUL

6.

The sum of two rational numbers is (-3/7). If one of the number is (-5/8) find the other.

Answer»

ANSWER:

SEE in the ATTACHMENT HOPE it is USEFUL

Discussion

7.	in a state,there were 120 males for every 100 females.in the next census,the total population increases by 5% and the females increases by 10%.what was the percentage increase in male population?
Answer» Answer: 20 PERCENT it can if I don't KNOW EXACTLY

7.

in a state,there were 120 males for every 100 females.in the next census,the total population increases by 5% and the females increases by 10%.what was the percentage increase in male population?

Answer»

Answer:

20 PERCENT it can if I don't KNOW EXACTLY

Discussion

8.	Q 20 : The area of a certain rectangle is 1 m².What is the area of a triangle that was cut off from that rectangle along a line connecting the midpoints of two adjacent sides? *THIS IS AN URGENT ANSWER.....I NEED THE ANSWER NOW..IF U CAN SOLVE IT FOR ME I WILL MARK U AS BRAINLIEST..
Answer» Answer: 5000cm^2 Step-by-step explanation: Area of the RECTANGLE=1m^2 Area of the triangle that is cut off from that rectangle ALONG a line CONNECTING the midpoints of the TWO adjacent sides that is the half of the rectangle=1m^2/2=10000cm^2/2=5000cm^2

8.

Q 20 : The area of a certain rectangle is 1 m².What is the area of a triangle that was cut off from that rectangle along a line connecting the midpoints of two adjacent sides? *THIS IS AN URGENT ANSWER.....I NEED THE ANSWER NOW..IF U CAN SOLVE IT FOR ME I WILL MARK U AS BRAINLIEST..

Answer»

Answer:

5000cm^2

Step-by-step explanation:

Area of the RECTANGLE=1m^2

Area of the triangle that is cut off from that rectangle ALONG a line CONNECTING the midpoints of the TWO adjacent sides that is the half of the rectangle=1m^2/2=10000cm^2/2=5000cm^2

Discussion

9.	Write 1,320,000 in standard or exponential form
Answer» ANSWER: HEY MATE UR ANSWER PLZ MARK ME AS THE BRAINLIEST Step-by-step EXPLANATION: the answer is 1.32 X 10^6 -->exponential form

9.

Write 1,320,000 in standard or exponential form

Answer»

ANSWER: HEY MATE UR ANSWER PLZ MARK ME AS THE BRAINLIEST

Step-by-step EXPLANATION:

the answer is 1.32 X 10^6 -->exponential form

Discussion

10.	{x+1}[x+2}[X+3} simplify maths class 9 polynomial fast answer
Answer» I HOPE IT HELPS TO U. PLEASE MARK ME AS BRAINLIEST..

10.

{x+1}[x+2}[X+3} simplify maths class 9 polynomial fast answer

Answer»

I HOPE IT HELPS TO U.

PLEASE MARK ME AS BRAINLIEST..

Discussion

11.	7. What should be added to (1/ 2 + 1/ 3 + 1/ 5 ) to get 3?
Answer» ANSWER: (1/2+1/3+1/5) + X = 3 LCM of 2,3,5 = 30 = After TAKING LCM and further solving (15+10+6)/30 31/30 ATQ.... 31/30+x=3 x=3-(31/30) LCM of 3 and 30 = 30 Further solving by lcm x = (30-31)/30, hence solved.......

11.

7. What should be added to (1/ 2 + 1/ 3 + 1/ 5 ) to get 3?

Answer»

ANSWER:

(1/2+1/3+1/5) + X = 3

LCM of 2,3,5 = 30

= After TAKING LCM and further solving

(15+10+6)/30

31/30

ATQ....

31/30+x=3

x=3-(31/30)

LCM of 3 and 30 = 30

Further solving by lcm

x = (30-31)/30, hence solved.......

Discussion

12.	4 1/2 divided by - 1 3/7
Answer» ANSWER: PLEASE MARK me as BRANLIEST

12.

4 1/2 divided by - 1 3/7

Answer»

ANSWER: PLEASE MARK me as BRANLIEST

Discussion

13.	Maya shaved her head and then began letting her hair grow. She represents the length \ellℓell of her hair, in centimeters, mmm months after she shaved her head using the equation \ell=1.25mℓ=1.25mell, equals, 1, point, 25, m. What does 1.251.251, point, 25 mean in this situation?
Answer» Step-by-step explanation: GIVEN : L represents the length of HAIR. m represents months after she shaved her head . EQUATION : To Find: What does 1.25 mean in this situation? Solution: Equation : Since it is linear function . So, 1.25 is the slope Slope is the RATE of change per unit. So, 1.25 is the rate of growth of HAIRS per month.

13.

Maya shaved her head and then began letting her hair grow. She represents the length \ellℓell of her hair, in centimeters, mmm months after she shaved her head using the equation \ell=1.25mℓ=1.25mell, equals, 1, point, 25, m. What does 1.251.251, point, 25 mean in this situation?

Answer»

Step-by-step explanation:

GIVEN : L represents the length of HAIR.

m represents months after she shaved her head .

EQUATION :

To Find: What does 1.25 mean in this situation?

Solution:

Equation :

Since it is linear function . So, 1.25 is the slope

Slope is the RATE of change per unit.

So, 1.25 is the rate of growth of HAIRS per month.

Discussion

14.	6-(-8)=?
Answer» CONVERT _(_)to +then add The RESULT will be 14

14.

6-(-8)=?

Answer»

CONVERT _(_)to +then add

The RESULT will be 14

Discussion

15.	What is the smallest perfect cube divisible by 2, 3 ,4, 6
Answer» Answer: 216 Step-by-step EXPLANATION: GIVEN, 2, 3, 4, 6 are multiples of 2 and 3 The smallest perfect cube DIVISIBLE by both 2 and 3 is: 2³×3³= 6³= 216

15.

What is the smallest perfect cube divisible by 2, 3 ,4, 6

Answer»

Answer:

216

Step-by-step EXPLANATION:

GIVEN,

2, 3, 4, 6 are multiples of 2 and 3

The smallest perfect cube DIVISIBLE by both 2 and 3 is:

2³×3³= 6³= 216

Discussion

16.	X by 5 = x-1 by 6 solve the equation
Answer» HOPE it HELPS.........

Discussion

17.	Convert the following in percent 5by6
Answer» ANSWER: Step-by-step EXPLANATION: = 5/6*100 = 500/6 = 83.33 %. HOPE THIS HELPS.

17.

Convert the following in percent 5by6

Answer»

ANSWER:

Step-by-step EXPLANATION:

= 5/6*100

= 500/6

= 83.33 %.

HOPE THIS HELPS.

Discussion

18.	98700105 in word help
Answer» ANSWER: MEANING I can not UNDERSTAND.

18.

98700105 in word help

Answer»

ANSWER:

MEANING I can not UNDERSTAND.

Discussion

19.	Pls answer this question pls☝☝
Answer» ANSWER: OK......35 1/4......... is the answer

19.

Pls answer this question pls☝☝

Answer»

ANSWER:

OK......35 1/4......... is the answer

Discussion

20.	Please solve this question with full solution........ .
Answer» Step-by-step EXPLANATION: REFER the ATTACHMENT your ANSWER is 1

20.

Please solve this question with full solution........ .

Answer»

Step-by-step EXPLANATION:

REFER the ATTACHMENT your ANSWER is 1

Discussion

21.	What is the multiplicative identity of 200 ?
Answer» $✌....1/200...✌$

Discussion

22.	Represent - 2/13, 5/13,-9/13 on the number line
Answer» Answer: I will give u. Step-by-step explanation: Just divide the no. btw 0 ND 1 in 13 parts and do the same for - 1 and 0 u will GET the ans. Hope this HELPS u. PLZ mark me brainliest if you found it HELPFUL.

22.

Represent - 2/13, 5/13,-9/13 on the number line

Answer»

Answer:

I will give u.

Step-by-step explanation:

Just divide the no. btw 0 ND 1 in 13 parts and do the same for - 1 and 0 u will GET the ans. Hope this HELPS u. PLZ mark me brainliest if you found it HELPFUL.

Discussion

23.	What is adjecent angle ...who will give first i will make him/her brainliest
Answer» Step-by-step explanation: TWO angles are ADJACENT when they have a COMMON side and a common vertex (corner point) and don't OVERLAP. ... they have a common side (line CB) they have a common vertex (point B)

23.

What is adjecent angle ...who will give first i will make him/her brainliest

Answer»

Step-by-step explanation:

TWO angles are ADJACENT when they have a COMMON side and a common vertex (corner point) and don't OVERLAP. ... they have a common side (line CB) they have a common vertex (point B)

Discussion

24.	Page No.Date3. Determine Hatimal numbers pand q7-15 spm - 759Z+ 57-157+15निर्मल नेशनल नंबर पीके एनक्यूएफ 7 प्लस 100 स्क्वायर अंडर अंडर रूट 5 अपॉन वन माइनस अंडर रूट 5 माइनस माइनस अंडर रूट 5.7 प्लस अंडर रूट 5 इज इक्वल टू 5 - 7
Answer» Answer: no no Step-by-step explanation: badgshahwgwgsvevegsjsnercrdhdge sgegcrcvrhrgrhrcgecehehrggruriruehrvrCt. ehehvrvrhhrhrvrvrgtudhecegehehydyd did dvevevehydyd d d FFS d did d you have a sister will any one be my sister PLEASE don't be mad at me and my mom is going to be a GOOD day at work and I don't know follow me and MARK me as a FRIEND of mine and I don't know

24.

Page No.Date3. Determine Hatimal numbers pand q7-15 spm - 759Z+ 57-157+15निर्मल नेशनल नंबर पीके एनक्यूएफ 7 प्लस 100 स्क्वायर अंडर अंडर रूट 5 अपॉन वन माइनस अंडर रूट 5 माइनस माइनस अंडर रूट 5.7 प्लस अंडर रूट 5 इज इक्वल टू 5 - 7

Answer»

Answer:

no no

Step-by-step explanation:

badgshahwgwgsvevegsjsnercrdhdge sgegcrcvrhrgrhrcgecehehrggruriruehrvrCt. ehehvrvrhhrhrvrvrgtudhecegehehydyd did dvevevehydyd d d FFS d did d you have a sister will any one be my sister PLEASE don't be mad at me and my mom is going to be a GOOD day at work and I don't know follow me and MARK me as a FRIEND of mine and I don't know

Discussion

25.	A) Fill in the blanks.the directions1)A line can extend endlessly in2) A line segment has two3) Ahas only one end point.4) Ais a polygon with three line segments.5) A quadrilateral is asided figure.6)is half the length of the diameter.7) An angle whose measure is greater than 90° but less than 180° is calledangle.an
Answer» Answer: 1) both the directions 2) end points 3) ray 4)triangle 5) four 6) radius 7)OBTUSE angle #HOPE IT HELPS PLEASE MARK AS BRAINLIEST

25.

A) Fill in the blanks.the directions1)A line can extend endlessly in2) A line segment has two3) Ahas only one end point.4) Ais a polygon with three line segments.5) A quadrilateral is asided figure.6)is half the length of the diameter.7) An angle whose measure is greater than 90° but less than 180° is calledangle.an

Answer»

Answer:

1) both the directions

2) end points

3) ray

4)triangle

5) four

6) radius

7)OBTUSE angle

#HOPE IT HELPS

PLEASE MARK AS BRAINLIEST

Discussion

26.	Indicate the following with positive and negative (1) 42 min after school start
Answer» ANSWER: answer : -42 MINUTES

26.

Indicate the following with positive and negative (1) 42 min after school start

Answer»

ANSWER:

answer : -42 MINUTES

Discussion

27.	Product of-8/7and the reciprocal of -2/7is...............Please answer
Answer» HEY MATE here is your answer Step-by-step EXPLANATION: -8/7*-7/2 =4

27.

Product of-8/7and the reciprocal of -2/7is...............Please answer

Answer»

HEY MATE here is your answer

Step-by-step EXPLANATION:

-8/7*-7/2

=4

Discussion

28.	Write this in the simplest form 12:16
Answer» ANSWER: SEE the ATTACHMENT ☝☝☝☝ Step-by-step EXPLANATION: Hope it will help you

28.

Write this in the simplest form 12:16

Answer»

ANSWER:

SEE the ATTACHMENT ☝☝☝☝

Step-by-step EXPLANATION:

Hope it will help you

Discussion

29.	My first Question 2+2÷2
Answer» Answer: 3 Step-by-step explanation: first DIVIDE 2 by 2 the answer is 1 now ADD the answer to 2 finally the answer is,=3 plzzzzz MARK me brainliest

29.

My first Question 2+2÷2

Answer»

Answer:

3

Step-by-step explanation:

first DIVIDE 2 by 2

the answer is 1

now ADD the answer to 2

finally the answer is,=3

plzzzzz MARK me brainliest

Discussion

30.	Exercise 14 : Use the verbs given in brackets and write the sentences in the simple present,present perfect or present perfect progressive tense:1. You (like) Mathematics.____________________2. He (work) since morning._____________________
Answer» Answer: 1. You LIKED mathmatics 2. He WORKED SINCE morning Step-by-step explanation: I *hope* *you* *understand* Please MARK me Brainliest

30.

Exercise 14 : Use the verbs given in brackets and write the sentences in the simple present,present perfect or present perfect progressive tense:1. You (like) Mathematics.2. He (work) since morning._

Answer»

Answer:

1. You LIKED mathmatics

2. He WORKED SINCE morning

Step-by-step explanation:

I hope you understand

Please MARK me Brainliest

Discussion

31.	What the hell is 7.2 times 2
Answer» 7.2 times 2 is EQUAL to 14.4, because 7 times 2 is 14 and 0.2 times 2 is 0.4 and when you add 14 and 0.4 you WOULD CLEARLY get 14.4

31.

What the hell is 7.2 times 2

Answer»

7.2 times 2 is EQUAL to 14.4, because 7 times 2 is 14 and 0.2 times 2 is 0.4 and when you add 14 and 0.4 you WOULD CLEARLY get 14.4

Discussion

32.	Standard form of -10/-17
Answer» 10/17 Because negative DIVIDED by negative EQUALS positive Mark as BRAINLIEST PLEASE thanks

32.

Standard form of -10/-17

Answer»

10/17

Because negative DIVIDED by negative EQUALS positive

Mark as BRAINLIEST PLEASE thanks

Discussion

33.	A cardboard box weighs 0.05 kg what will be the weight of 8 such boxes
Answer» Answer:0.05×8=0.4 Step-by-step EXPLANATION:

33.

A cardboard box weighs 0.05 kg what will be the weight of 8 such boxes

Answer»

Answer:0.05×8=0.4

Step-by-step EXPLANATION:

Discussion

34.	(x+8) (x-5) find the product by using a suitable identity
Answer» ANSWER: Hi... Here is your answer... We know that the identity (x + a) (x + b) = X2 + (a + b)x + ab Now (X + 8) (x - 10) [ Here a = 8 and b = -10 ] THEREFORE, (X + 8) (x - 10) = x2 + (8 - 10)x + 8X(-10) = x2 - 2x - 80

34.

(x+8) (x-5) find the product by using a suitable identity

Answer»

ANSWER:

Hi...

Here is your answer...

We know that the identity

(x + a) (x + b) = X2 + (a + b)x + ab

Now

(X + 8) (x - 10)

[ Here a = 8 and b = -10 ]

THEREFORE,

(X + 8) (x - 10) = x2 + (8 - 10)x + 8X(-10)

= x2 - 2x - 80

Discussion

35.	By what one bumber should we multipleso that the product maymay be-23)?(-1)16
Answer» ANSWER: HOPE this HELP you. plz MARK as BRAINLIEST

35.

By what one bumber should we multipleso that the product maymay be-23)?(-1)16

Answer»

ANSWER:

HOPE this HELP you.

plz MARK as BRAINLIEST

Discussion

36.	7÷9-2÷3. plz answer this question
Answer» ANSWER is 14/3................

Discussion

37.	Fill in the blanks1. 36/___ = -4/9 = -84/_____
Answer» Step-by-step EXPLANATION: -36/81= -4/9 = -84/189

37.

Fill in the blanks1. 36/_ = -4/9 = -84/___

Answer»

Step-by-step EXPLANATION:

-36/81= -4/9 = -84/189

Discussion

38.	City Politicians decide that there should be one community centre for every 5000 people.(1) How many community centres do you think they should build for a population of 32800?
Answer» ANSWER: Step-by-step explanation Idk

38.

City Politicians decide that there should be one community centre for every 5000 people.(1) How many community centres do you think they should build for a population of 32800?

Answer»

ANSWER:

Step-by-step explanation

Idk

Discussion

39.	Please answer these questions and show working and don’t say I don’t know or something
Answer» Answer: 1.6feet 2.₹360,600 Hope this HELPS you... These are CORRECT answers..... MARK me as brainliest please let... Step-by-step explanation: 1.6feet 2.₹360,₹600 Hope this helps you QUICKLY..... Mark me as brainliest please.......

39.

Please answer these questions and show working and don’t say I don’t know or something

Answer»

Answer:

1.6feet

2.₹360,600

Hope this HELPS you...

These are CORRECT answers.....

MARK me as brainliest please let...

Step-by-step explanation:

1.6feet

2.₹360,₹600

Hope this helps you QUICKLY.....

Mark me as brainliest please.......

Discussion

40.	Write following decimal on expanded notation. a. 72.302
Answer» Answer: 70+2+0.3+0+0.002 is the EXPANDED NOTATION

40.

Write following decimal on expanded notation. a. 72.302

Answer»

Answer:

70+2+0.3+0+0.002 is the EXPANDED NOTATION

Discussion

41.	Please answer fast please please please
Answer» Answer: 1) 7/3, 2) x= 40/3, 3) Number= -1/2 Step-by-step explanation: 1) 2y + 5/3= 26/3-y 2y+y = 26/3-5/3 3y= 21/3 ⇒ y= 21/31/3 ∴y= 7/3 2) 2x+1/3= 7x/15+ 3 2x+1/3-7x/15= 3 since LCM of 3 and 15 is 15 we multiply 2x+1 with 5 10x+5-7x/15 = 3 3x+5/15= 3 3x+5= 45 3x= 40 ⇒x= 40/3 3) let the number be x when MULTIPLIED by 5/2 it BECOMES 5x/2 according to the question, 5x/2+ 2/3= -7/12 5x/2= -7/12-2/3 5x/2= -7-8/12= -15/12= -5/4 x= -5/4 2/5= -2/4= -1/2

41.

Please answer fast please please please

Answer»

Answer:

1) 7/3, 2) x= 40/3, 3) Number= -1/2

Step-by-step explanation:

1) 2y + 5/3= 26/3-y

2y+y = 26/3-5/3

3y= 21/3 ⇒ y= 21/3*1/3

∴y= 7/3

2) 2x+1/3= 7x/15+ 3

2x+1/3-7x/15= 3

since LCM of 3 and 15 is 15 we multiply 2x+1 with 5

10x+5-7x/15 = 3

3x+5/15= 3

3x+5= 45

3x= 40 ⇒x= 40/3

3) let the number be x

when MULTIPLIED by 5/2 it BECOMES 5x/2

according to the question,

5x/2+ 2/3= -7/12

5x/2= -7/12-2/3

5x/2= -7-8/12= -15/12= -5/4

x= -5/4* 2/5= -2/4= -1/2

Discussion

42.	If the digit in one's place of a number is 3, then the last digit of its cube will be:l.3II. 6III. 7IV.9
Answer» Answer: The answer of this QUESTION is 7. Step-by-step EXPLANATION: we KNOW that the cube of 3 is 27

42.

If the digit in one's place of a number is 3, then the last digit of its cube will be:l.3II. 6III. 7IV.9

Answer»

Answer:

The answer of this QUESTION is 7.

Step-by-step EXPLANATION:

we KNOW that the cube of 3 is 27

Discussion

43.	Mathematics for Class 6EXERCISE 2D2. 170. 238Find the HCF of the numbers in each of the following, using the prime factorization
Answer» Answer: 17\|<U>170,238 2\|10,14__ 5,7___ HCF=13 hope it HELPS u....

43.

Mathematics for Class 6EXERCISE 2D2. 170. 238Find the HCF of the numbers in each of the following, using the prime factorization

Answer»

Answer:

17|<U>170,238

2|10,14__

5,7___

HCF=13

hope it HELPS u....

Discussion

44.	A tree with a height of 4m casts a shadow of 15m long on the ground. How high will a similar tree be, if it casts a shadow of 20 m long?
Answer» $\frac{4}{15} = \frac{x}{20} \\ x = \frac{4 \times 20}{15} \\ x = \frac{16}{3} m$

44.

A tree with a height of 4m casts a shadow of 15m long on the ground. How high will a similar tree be, if it casts a shadow of 20 m long?

Answer»

$\frac{4}{15} = \frac{x}{20} \\ x = \frac{4 \times 20}{15} \\ x = \frac{16}{3} m$

Discussion

45.	Represent the given rational number on the no. line. -3/4, -5/8, 11/12
Answer» ANSWER: Step-by-step EXPLANATION: SEE the SCREENSHOT

45.

Represent the given rational number on the no. line. -3/4, -5/8, 11/12

Answer»

ANSWER:

Step-by-step EXPLANATION:

SEE the SCREENSHOT

Discussion

46.	Reduce the following to the lowest term 160 by 720 step by step
Answer» Answer: 2/9 Step-by-step explanation: 160/720 8/36 4/18 2/9

46.

Reduce the following to the lowest term 160 by 720 step by step

Answer»

Answer:

2/9

Step-by-step explanation:

160/720

8/36

4/18

2/9

Discussion

47.	What is 0.03 multiplied by 1000
Answer» ✯ $\huge\underline\mathfrak\green{Answer}$ ✯ 0.03 × 1000 = 30 { the DECIMAL point moves right SIDE when we MULTIPLY any decimal with 10 , 100 or 1000 and when we divide it with 10 , 100 ,, the decimal point moves toward LEFT }

47.

What is 0.03 multiplied by 1000

Answer»

✯ $\huge\underline\mathfrak\green{Answer}$ ✯

0.03 × 1000

= 30

{ the DECIMAL point moves right SIDE when we MULTIPLY any decimal with 10 , 100 or 1000 and when we divide it with 10 , 100 ,, the decimal point moves toward LEFT }

Discussion

48.	The area of a trapezium is 180cm square and it's height is 9cm.If one of the parallel sides is longer than the other by 6cm, find the two parallel sides.
Answer» Question :- The area of the Trapezium is 180 cm² and it's height is 9cm . If one of the parallel sides is longer than the other by 6 cm . Find the two parallel sides Answer :- GIVEN :- The area of the Trapezium is 180 cm² . Height is 9 cm one of the parallel sides is longer than the other by 6 cm Required to find :- Measurements of the two parallel sides ? Formula used :- $\large{\leadsto{\boxed{\rm{ Area \; of \; a \; Trapezium = \dfrac{1}{2}\times h( a + b )}}}}$ Solution :- Given that :- The area of the Trapezium is 180 cm² Height is 9 cm one of the parallel sides is longer than the other by 6 cm And He asked us to find the measurements of the two sides . So, Using the formula , $\large{\leadsto{\boxed{\rm{ Area \; of \; a \; Trapezium = \dfrac{1}{2}\times h( a + b )}}}}$ Here, h = height or distance between the parallel sides a , b = measurements of the two parallel sides So, LET, The longest side of the Trapezium be as " a " So, It is given that the one of side is longer than the other side by 6 cm . Hence, Let the side a be as X + 6 cm Similarly, The side b as x cm Now substitute these values in the above formula . So, $\longrightarrow{\tt{ Area = \dfrac{1}{2} \times 9 ( x + 6 + x ) }}$ $\longrightarrow{\rm{ 180 = \dfrac{1}{2} \times 9 ( 2x + 6 ) }}$ $\longrightarrow{\tt{ 180 \times 2 = 9 ( 2x + 6 ) }}$ $\longrightarrow{\rm{ 360 = 9 ( 2x + 6 ) }}$ $\longrightarrow{\tt{ 360 = 18x + 54 }}$ $\longrightarrow{\rm{ 18x + 54 = 360 }}$ $\longrightarrow{\tt{ 18x = 360 - 54 }}$ $\longrightarrow{\rm{ 18x = 306 }}$ $\implies{\tt{ x = \dfrac{306}{18}}}$ $\implies{\rm{ x = 17 \; cm }}$ So, value of X is 17 cm . Now substitute this value in a & b . Hence, a = x + 6 ➜ 17 + 6 = 23 cm b = x ➜ 17 cm Therefore, Measurements of the two parallel sides are 23 cm & 17 cm Points to remember :- 1. Formula :- $\large{\leadsto{\boxed{\rm{ Area \; of \; a \; Trapezium = \dfrac{1}{2}\times h( a + b )}}}}$ 2. Properties of trapezium are , One pair of OPPOSITE sides are parallel . Sum of two adjacent angles is supplementary . Diagonals bisect each other Sum of all angles is equal to 360° 3. If the NON - parallel sides are equal then the trapezium is also known as Isosceles Trapezium . 4. The distance between the parallel sides is also known as the height of the Trapezium . It is denoted by " h " .

48.

The area of a trapezium is 180cm square and it's height is 9cm.If one of the parallel sides is longer than the other by 6cm, find the two parallel sides.

Answer»

Question :-

The area of the Trapezium is 180 cm² and it's height is 9cm . If one of the parallel sides is longer than the other by 6 cm . Find the two parallel sides

Answer :-

GIVEN :-

The area of the Trapezium is 180 cm² .

Height is 9 cm

one of the parallel sides is longer than the other by 6 cm

Required to find :-

Measurements of the two parallel sides ?

Formula used :-

$\large{\leadsto{\boxed{\rm{ Area \; of \; a \; Trapezium = \dfrac{1}{2}\times h( a + b )}}}}$

Solution :-

Given that :-

The area of the Trapezium is 180 cm²

Height is 9 cm

one of the parallel sides is longer than the other by 6 cm

And

He asked us to find the measurements of the two sides .

So,

Using the formula ,

$\large{\leadsto{\boxed{\rm{ Area \; of \; a \; Trapezium = \dfrac{1}{2}\times h( a + b )}}}}$

Here,

h = height or distance between the parallel sides

a , b = measurements of the two parallel sides

So,

LET,

The longest side of the Trapezium be as " a "

So,

It is given that the one of side is longer than the other side by 6 cm .

Hence,

Let the side a be as X + 6 cm

Similarly,

The side b as x cm

Now substitute these values in the above formula .

So,

$\longrightarrow{\tt{ Area = \dfrac{1}{2} \times 9 ( x + 6 + x ) }}$

$\longrightarrow{\rm{ 180 = \dfrac{1}{2} \times 9 ( 2x + 6 ) }}$

$\longrightarrow{\tt{ 180 \times 2 = 9 ( 2x + 6 ) }}$

$\longrightarrow{\rm{ 360 = 9 ( 2x + 6 ) }}$

$\longrightarrow{\tt{ 360 = 18x + 54 }}$

$\longrightarrow{\rm{ 18x + 54 = 360 }}$

$\longrightarrow{\tt{ 18x = 360 - 54 }}$

$\longrightarrow{\rm{ 18x = 306 }}$

$\implies{\tt{ x = \dfrac{306}{18}}}$

$\implies{\rm{ x = 17 \; cm }}$

So,

value of X is 17 cm .

Now substitute this value in a & b .

Hence,

a = x + 6

➜ 17 + 6 = 23 cm

b = x

➜ 17 cm

Therefore,

Measurements of the two parallel sides are 23 cm & 17 cm

Points to remember :-

1. Formula :-

$\large{\leadsto{\boxed{\rm{ Area \; of \; a \; Trapezium = \dfrac{1}{2}\times h( a + b )}}}}$

2. Properties of trapezium are ,

One pair of OPPOSITE sides are parallel .

Sum of two adjacent angles is supplementary .

Diagonals bisect each other

Sum of all angles is equal to 360°

3. If the NON - parallel sides are equal then the trapezium is also known as Isosceles Trapezium .

4. The distance between the parallel sides is also known as the height of the Trapezium . It is denoted by " h " .

Discussion

49.	If [-3\5]^x = - 27\125,then find the value of x
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49.

If [-3\5]^x = - 27\125,then find the value of x

Answer»

ANSWER:

PLZZZZZZZZ MARK as a BRAINLIST plzzzzzzzz FOLLOW me plzzzzzzzz mark as a brainlist plzzzzzzzz follow me plzzzzzzzz mark as a brainlist plzzzzzzzz follow me plzzzzzzzz mark as a brainlist plzzzzzzzz follow me plzzzzzzzz mark as a brainlist plzzzzzzzz follow me plzzzzzzzz mark as a brainlist plzzzzzzzz follow me plzzzzzzzz mark as a brainlist plzzzzzzzz follow me

Discussion

50.	Verify if 1/2 and -3/2 are zeroes of polynomial 8x^3-4x^2-18x+9.If yes then factorise the polynomial.
Answer» ANSWER: If a = 2 x - 1 2 x - 2 , b = 2 - x 2 x + 1 and a - b = 0, find the value of x 2 Verify if 1 2 a n d - 3 2 are zeroes of the POLYNOMIAL 8x3 - 4X2 - 18x ... a = (2x-1) / (2x-2) = 2x-1-(x-2) [As, am ÷ an = am-n] = 2x-1-x+2 = 21 b = (2-x) .

50.

Verify if 1/2 and -3/2 are zeroes of polynomial 8x^3-4x^2-18x+9.If yes then factorise the polynomial.

Answer»

ANSWER:

If a = 2 x - 1 2 x - 2 , b = 2 - x 2 x + 1 and a - b = 0, find the value of x 2 Verify if 1 2 a n d - 3 2 are zeroes of the POLYNOMIAL 8x3 - 4X2 - 18x ...

a = (2x-1) / (2x-2) = 2x-1-(x-2) [As, am ÷ an = am-n] = 2x-1-x+2 = 21 b = (2-x) .

Discussion

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✯✯

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= 30

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The area of a trapezium is 180cm square and it's height is 9cm.If one of the parallel sides is longer than the other by 6cm, find the two parallel sides.

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Answer :-

GIVEN :-

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Therefore,

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✯ $\huge\underline\mathfrak\green{Answer}$ ✯

If [-3\5]^x = - 27\125,then find the value of x