98971 + Interview Questions in Primary School in Math

1.	If the body is projected vertically upward from the ground,find the distance travelled by the body in the last second of the upward journey?
Answer» ANSWER: ab3ryttyioodetijcdyuòht0pjg

1.

If the body is projected vertically upward from the ground,find the distance travelled by the body in the last second of the upward journey?

Answer»

ANSWER:

ab3ryttyioodetijcdyuòht0pjg

Discussion

2.	Do the question of attachment
Answer» We Have :- $cos^{2}x + cos^{2}(x+\dfrac{\pi}{3} )+cos^{2}(x-\dfrac{\pi}{3})=\dfrac{3}{2}$ Formula USED :- $cos2x = 2cos^{2}x-1\\\\cos^{2}x=\dfrac{1+cos2x}{2} \\\\cos A + cos B= 2 cos \dfrac{A+B}{2}cos\dfrac{A-B}{2}$ SOLUTION :- $cos^{2}x + cos^{2}(x+\dfrac{\pi}{3} )+cos^{2}(x-\dfrac{\pi}{3})=\dfrac{3}{2} \\\\Taking\ LHS\\\\cos^{2}x + cos^{2}(x+\dfrac{\pi}{3} )+cos^{2}(x-\dfrac{\pi}{3})\\\\Using\ Identity\\\\\dfrac{1+cos2x}{2} +\dfrac{1+cos(2x+\dfrac{2\pi}{3} )}{2} +\dfrac{1+cos(2x-\dfrac{2\pi}{3} )}{2}\\\\\dfrac{1}{2} [ 3 + cos2x +cos(2x+\dfrac{2\pi}{3})+cos (2x-\dfrac{2\pi}{3})]\\$ $Using\ Identity$ $\dfrac{1}{2} [3+cos2x+2cos(\dfrac{2x+\dfrac{2\pi}{3}+2x-\dfrac{2\pi}{3} }{2})cos( \dfrac{2x+\dfrac{2\pi}{3}-2x+\dfrac{2\pi}{3} }{2})]\\\\\dfrac{1}{2} [3+cos2x+2cos2xcos\dfrac{2\pi}{3}]\\ \\\dfrac{1}{2}[3+cos2x+( 1+2cos\dfrac{2\pi}{3} )]\\\\\dfrac{1}{2} [3+cos2x(1+2cos(\dfrac{-\pi}{3}))]\\ \\\dfrac{1}{2}[3+cos2x(1-2*\dfrac{1}{2} )]\\ \\\dfrac{1}{2} [3+cos2x(1-1)]\\\\\dfrac{1}{2}[3+cos2x(0)]\\ \\\dfrac{1}{2}[3+0]\\ \\\dfrac{3}{2} \\\\LHS=RHS\\\\Hence\ Proved$

2.

Do the question of attachment

Answer»

We Have :-

$cos^{2}x + cos^{2}(x+\dfrac{\pi}{3} )+cos^{2}(x-\dfrac{\pi}{3})=\dfrac{3}{2}$

Formula USED :-

$cos2x = 2cos^{2}x-1\\\\cos^{2}x=\dfrac{1+cos2x}{2} \\\\cos A + cos B= 2 cos \dfrac{A+B}{2}cos\dfrac{A-B}{2}$

SOLUTION :-

$cos^{2}x + cos^{2}(x+\dfrac{\pi}{3} )+cos^{2}(x-\dfrac{\pi}{3})=\dfrac{3}{2} \\\\Taking\ LHS\\\\cos^{2}x + cos^{2}(x+\dfrac{\pi}{3} )+cos^{2}(x-\dfrac{\pi}{3})\\\\Using\ Identity\\\\\dfrac{1+cos2x}{2} +\dfrac{1+cos(2x+\dfrac{2\pi}{3} )}{2} +\dfrac{1+cos(2x-\dfrac{2\pi}{3} )}{2}\\\\\dfrac{1}{2} [ 3 + cos2x +cos(2x+\dfrac{2\pi}{3})+cos (2x-\dfrac{2\pi}{3})]\\$

$Using\ Identity$

$\dfrac{1}{2} [3+cos2x+2cos(\dfrac{2x+\dfrac{2\pi}{3}+2x-\dfrac{2\pi}{3} }{2})*cos( \dfrac{2x+\dfrac{2\pi}{3}-2x+\dfrac{2\pi}{3} }{2})]\\\\\dfrac{1}{2} [3+cos2x+2cos2x*cos\dfrac{2\pi}{3}]\\ \\\dfrac{1}{2}[3+cos2x+( 1+2cos\dfrac{2\pi}{3} )]\\\\\dfrac{1}{2} [3+cos2x(1+2cos(\dfrac{-\pi}{3}))]\\ \\\dfrac{1}{2}[3+cos2x(1-2*\dfrac{1}{2} )]\\ \\\dfrac{1}{2} [3+cos2x(1-1)]\\\\\dfrac{1}{2}[3+cos2x(0)]\\ \\\dfrac{1}{2}[3+0]\\ \\\dfrac{3}{2} \\\\LHS=RHS\\\\Hence\ Proved$

Discussion

3.	The density of material in CGS system is 8 g/cm^3. In a system of a unit in which unit of length is 5cm and unit of mass is 20g. The density of material is..
Answer» ANSWER:no answer Step-by-step EXPLANATION:

3.

The density of material in CGS system is 8 g/cm^3. In a system of a unit in which unit of length is 5cm and unit of mass is 20g. The density of material is..

Answer»

ANSWER:no answer

Step-by-step EXPLANATION:

Discussion

4.	Using order of operations (PEMDAS) which expressions equal 48?A. 3.(2^50 divided by 2B. 2^3 . 3+3^2C. 2^3 .5+ (4.2)D. 2^4
Answer» ANSWER: C. 2^3.5 + (4.2) Step-by-step EXPLANATION: C. = 8 × 5 + 8 = 40 + 8 = 48 *HOPE* *THIS* *HELPS* *YOU*.........

4.

Using order of operations (PEMDAS) which expressions equal 48?A. 3.(2^50 divided by 2B. 2^3 . 3+3^2C. 2^3 .5+ (4.2)D. 2^4

Answer»

ANSWER:

C. 2^3.5 + (4.2)

Step-by-step EXPLANATION:

C.

= 8 × 5 + 8

= 40 + 8

= 48

HOPE THIS HELPS YOU.........

Discussion

5.	Construct a triangle whose perimeter is 13.5cm and the ratio of the three sides is 2:3:4.Give valuable answer orelse it will be reported.
Answer» ANSWER: sides = 3cm, 4.5cm , 6cm also I have not measured the triangle and then made it so pls draw it with the RESPECTIVE MEASURES hope it HELPS : )

5.

Construct a triangle whose perimeter is 13.5cm and the ratio of the three sides is 2:3:4.Give valuable answer orelse it will be reported.

Answer»

ANSWER:

sides = 3cm, 4.5cm , 6cm

also I have not measured the triangle and then made it so pls draw it with the RESPECTIVE MEASURES

hope it HELPS : )

Discussion

6.	Is the highest factor of every number the number itself
Answer» ANSWER: YES OF COURSE GO FOR THIS

6.

Is the highest factor of every number the number itself

Answer»

ANSWER:

YES OF COURSE

GO FOR THIS

Discussion

7.	Find the square root of 2 up to two places of decimal. How do yo get to know how many zero's to add in these type of question. please solve the question too!!!!!!!!!!!!!
Answer» Answer: *#jaihinddosto* Step-by-step explanation: The SQUARE root of 2 is the number which when MULTIPLIED with itself GIVES the result as 2. It is generally represented as √2 or 2½. The numerical value of square root 2 up to 50 decimal PLACES is as follows: √2 = 1.4142135623730950......

7.

Find the square root of 2 up to two places of decimal. How do yo get to know how many zero's to add in these type of question. please solve the question too!!!!!!!!!!!!!

Answer»

Answer:

#jaihinddosto

Step-by-step explanation:

The SQUARE root of 2 is the number which when MULTIPLIED with itself GIVES the result as 2. It is generally represented as √2 or 2½. The numerical value of square root 2 up to 50 decimal PLACES is as follows: √2 = 1.4142135623730950......

Discussion

8.	Answer this question please 9th STD it is urgent
Answer» the ANSWER of 6 A- . B- . C- . set A B C are SUBSET of N- ${ 1.2.3.4......... }$ . W- ${0.1.2.3.4........ }$ I ${ ....... - 3. - 2. - 1.0.1.2.3.4 }$ set N W I any one of them be universal subset

8.

Answer this question please 9th STD it is urgent

Answer»

the ANSWER of 6

A-

.

B-

.

C-

.

set A B C are SUBSET of

N-

${ 1.2.3.4......... }$

.

W-

${0.1.2.3.4........ }$

I

${ ....... - 3. - 2. - 1.0.1.2.3.4 }$

set N W I any one of them be universal subset

Discussion

9.	6/10 is an dash fraction of 3/5
Answer» Answer: YES U r ABSOLUTELY correct

9.

6/10 is an dash fraction of 3/5

Answer»

Answer:

YES U r ABSOLUTELY correct

Discussion

10.	FRACTIONS solve full question please
Answer» ANSWER: $\frac{1}{2} + \frac{2}{3}$ $= \frac{3 + 4}{6}$ $= \frac{7}{6}$ $= 1 \frac{1}{6}$

10.

FRACTIONS solve full question please

Answer»

ANSWER:

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

$= \frac{3 + 4}{6}$

$= \frac{7}{6}$

$= 1 \frac{1}{6}$

Discussion

11.	1) Find the area of each of the figures given here.Areas of full squares and more than half squaresare to be taken as 1 cm each. Areas of half squares are to be taken as cm. Areas of lessthan half squares are to be taken as 0 cm?
Answer» Step-by-step EXPLANATION: प्लीज माय माय आंसर इन BRAINLIEST

11.

1) Find the area of each of the figures given here.Areas of full squares and more than half squaresare to be taken as 1 cm each. Areas of half squares are to be taken as cm. Areas of lessthan half squares are to be taken as 0 cm?

Answer»

Step-by-step EXPLANATION:

प्लीज माय माय आंसर इन BRAINLIEST

Discussion

12.	7. An elevator descends into a mine shaft at the rate of 6 m/min. If the descendstarts from 10 m above the ground level, how long will it take to reach the shaft350 m below the ground level?
Answer» Answer: 1 Hr. Step-by-step explanation: Considering the elevator to be at constant speed and the destination to be 350 m below ground level, The elevator has to travel 10m till the ground, then 350 m more. So, the TOTAL distance to travel is 360 m If the elevator's speed is 6 metres/minute, Then Time = Distance/Speed = 360/6 = 60 minutes = 1 HOUR Thus the elevator would take 1 hour to reach its destination. <><><><> brainliest plzzz...... ♡ ❣ ♡ ❣ ♡ ❣ ♡ ❣ ♡ ❣ ♡ ❣ ♡ ❣ ♡ ❣ ♡ ❣ ♡ ❣ ♡

12.

7. An elevator descends into a mine shaft at the rate of 6 m/min. If the descendstarts from 10 m above the ground level, how long will it take to reach the shaft350 m below the ground level?

Answer»

Answer:

1 Hr.

Step-by-step explanation:

Considering the elevator to be at constant speed and the destination to be 350 m below ground level,

The elevator has to travel 10m till the ground, then 350 m more.

So, the TOTAL distance to travel is 360 m

If the elevator's speed is 6 metres/minute,

Then

Time = Distance/Speed

= 360/6

= 60 minutes

= 1 HOUR

Thus the elevator would take 1 hour to reach its destination.

<><><><>

brainliest plzzz......

♡ ❣ ♡ ❣ ♡ ❣ ♡ ❣ ♡ ❣ ♡ ❣ ♡ ❣ ♡ ❣ ♡ ❣ ♡ ❣ ♡

Discussion

13.	Pege4. The differene biltumen a 2 digit number and the obtained by reserving its digit is 63. the tens digit an odd number and the onces digit is non zero even number
Answer» Step-by-step explanation: MATHS The difference between a 2-digit number and the number obtained by interchanging its digits is 63. What is the difference between the digits of the number? Help best friend Study later ANSWER Let the numbers be x and y the number at ones PLACE is y and number on TENS place is 10x so the digit will be 10x+y The interchange of digit is =10y+x It is given the difference between the digit and interchange is 63 so 10x+y−(10y+x)=63 9x−9y=63 x−y=7 The difference between the digits is 7. IF *YOU* *SATISFIED* MY *ANSWER* *PLZ* *MARK* *BRAINLIST*....

13.

Pege4. The differene biltumen a 2 digit number and the obtained by reserving its digit is 63. the tens digit an odd number and the onces digit is non zero even number

Answer»

Step-by-step explanation:

MATHS

The difference between a 2-digit number and the number obtained by interchanging its digits is 63. What is the difference between the digits of the number?

Help best friend

Study later

ANSWER

Let the numbers be x and y

the number at ones PLACE is y

and number on TENS place is 10x

so the digit will be 10x+y

The interchange of digit is =10y+x

It is given the difference between the digit and interchange is 63 so

10x+y−(10y+x)=63

9x−9y=63

x−y=7

The difference between the digits is 7.

IF YOU SATISFIED MY ANSWER PLZ MARK BRAINLIST....

Discussion

14.	50 के वर्ग में 0 की संख्या क्या होगी
Answer» Answer: 1 Step-by-step EXPLANATION: UNITS place of 0 is 1 and TEN's place 0f 5 is 10 or if you are asking value of ZERO it will be 0(zero)

14.

50 के वर्ग में 0 की संख्या क्या होगी

Answer»

Answer:

1

Step-by-step EXPLANATION:

UNITS place of 0 is 1

and TEN's place 0f 5 is 10

or if you are asking value of ZERO it will be 0(zero)

Discussion

15.	Please help me guys fast..
Answer» ANSWER: *Cubes of the numbers ending with the DIGITS 0, 1, 4, 5, 6 and 9 ... Example 12 : 682 will have ______ at the units place. ... Example 23 : Using distributive law, FIND the square of 43.*

15.

Please help me guys fast..

Answer»

ANSWER:

Cubes of the numbers ending with the DIGITS 0, 1, 4, 5, 6 and 9 ... Example 12 : 682 will have ______ at the units place. ... Example 23 : Using distributive law, FIND the square of 43.

Discussion

16.	in what time will the simple interest on a certain sum be third-fourth of the principal 6% per annum .
Answer» Step - by - step explanation: ⠀⠀⠀⠀⠀⠀⠀ ☯ Let the principal amount be Rs. 100 ⠀⠀⠀⠀⠀⠀⠀ ${\underline{\sf{\bigstar\; According\;to\; Question\;:}}}$ ⠀⠀⠀⠀⠀⠀⠀ Simple Interest should be $\bf {}^{\text3}\!/{}_{\text{4}}th$ of the principal. ⠀⠀⠀⠀⠀⠀⠀ Therefore, ⠀⠀⠀⠀⠀⠀⠀ $\sf Simple\; Interest = \cancel{100} \times \dfrac{1}{ \cancel{4}}$ ⠀⠀⠀⠀⠀⠀⠀ $\sf Simple\; Interest = {\bf{\red{Rs.\;75}}}$ ━━━━━━━━━━━━━━━ ⠀⠀⠀⠀⠀⠀⠀ So, ⠀⠀⠀⠀⠀⠀⠀ $\bf We\;have = \begin{cases} & \text{Principal = Rs.\; 100} \\ & \text{Rate = 6\% } \\ & \text{Simple\; Interest = Rs.\;75} \end{cases}$ ⠀⠀⠀⠀⠀⠀⠀ Now, We have to find TIME, ⠀⠀⠀⠀⠀⠀⠀ We know that, ⠀⠀⠀⠀⠀⠀⠀ $\star\;{\boxed{\sf{\purple{Simple\; Interest = \dfrac{P \times R \times T}{100}}}}}$ ⠀⠀⠀⠀⠀⠀⠀ $\;\;\;\;\small\sf \underline{Putting\;Values\;:}$ ⠀⠀⠀⠀⠀⠀⠀ $:\implies\sf 75 = \dfrac{100 \times 6 \times T}{100}$ ⠀⠀⠀⠀⠀⠀⠀ $:\implies\sf 75 = \dfrac{ \cancel{100} \times 6 \times T}{ \cancel{100}}$ ⠀⠀⠀⠀⠀⠀⠀ $:\implies\sf 75 = 6 \times T$ ⠀⠀⠀⠀⠀⠀⠀ $:\implies\sf T = \cancel{ \dfrac{75}{6}}$ ⠀⠀⠀⠀⠀⠀⠀ $:\implies{\underline{\boxed{\sf{\pink{T = {}^{\text25}\!/{}_{\text{2}}\;or\;12\;years\;and\;6\;months}}}}}\;\bigstar$ ⠀⠀⠀⠀⠀⠀⠀ $\therefore$ Hence, In 12 years and 6 months the simple interest on a CERTAIN SUM be third-fourth of the principal 6% PER annum.

16.

in what time will the simple interest on a certain sum be third-fourth of the principal 6% per annum .

Answer»

Step - by - step explanation:

⠀⠀⠀⠀⠀⠀⠀

☯ Let the principal amount be Rs. 100

⠀⠀⠀⠀⠀⠀⠀

${\underline{\sf{\bigstar\; According\;to\; Question\;:}}}$

⠀⠀⠀⠀⠀⠀⠀

Simple Interest should be $\bf {}^{\text3}\!/{}_{\text{4}}th$ of the principal.

⠀⠀⠀⠀⠀⠀⠀

Therefore,

⠀⠀⠀⠀⠀⠀⠀

$\sf Simple\; Interest = \cancel{100} \times \dfrac{1}{ \cancel{4}}$

⠀⠀⠀⠀⠀⠀⠀

$\sf Simple\; Interest = {\bf{\red{Rs.\;75}}}$

━━━━━━━━━━━━━━━

⠀⠀⠀⠀⠀⠀⠀

So,

⠀⠀⠀⠀⠀⠀⠀

$\bf We\;have = \begin{cases} & \text{Principal = Rs.\; 100} \\ & \text{Rate = 6\% } \\ & \text{Simple\; Interest = Rs.\;75} \end{cases}$

⠀⠀⠀⠀⠀⠀⠀

Now, We have to find TIME,

⠀⠀⠀⠀⠀⠀⠀

We know that,

⠀⠀⠀⠀⠀⠀⠀

$\star\;{\boxed{\sf{\purple{Simple\; Interest = \dfrac{P \times R \times T}{100}}}}}$

⠀⠀⠀⠀⠀⠀⠀

$\;\;\;\;\small\sf \underline{Putting\;Values\;:}$

⠀⠀⠀⠀⠀⠀⠀

$:\implies\sf 75 = \dfrac{100 \times 6 \times T}{100}$

⠀⠀⠀⠀⠀⠀⠀

$:\implies\sf 75 = \dfrac{ \cancel{100} \times 6 \times T}{ \cancel{100}}$

⠀⠀⠀⠀⠀⠀⠀

$:\implies\sf 75 = 6 \times T$

⠀⠀⠀⠀⠀⠀⠀

$:\implies\sf T = \cancel{ \dfrac{75}{6}}$

⠀⠀⠀⠀⠀⠀⠀

$:\implies{\underline{\boxed{\sf{\pink{T = {}^{\text25}\!/{}_{\text{2}}\;or\;12\;years\;and\;6\;months}}}}}\;\bigstar$

⠀⠀⠀⠀⠀⠀⠀

$\therefore$ Hence, In 12 years and 6 months the simple interest on a CERTAIN SUM be third-fourth of the principal 6% PER annum.

Discussion

17.	1/1+x^a-b+1/1+x^b-a find the value
Answer» ANSWER: Can you PLEASE POST it's QUESTION

17.

1/1+x^a-b+1/1+x^b-a find the value

Answer»

ANSWER:

Can you PLEASE POST it's QUESTION

Discussion

18.	Manav bought 7 stickers at 3,56 each. How much did he pay for the stickers
Answer» ANSWER: TOTAL STICKERS bought=7 Cost of each=356 Total PAID=7×356 2492 is paid for the stickers.

18.

Manav bought 7 stickers at 3,56 each. How much did he pay for the stickers

Answer»

ANSWER:

TOTAL STICKERS bought=7
Cost of each=356
Total PAID=7×356
2492 is paid for the stickers.

Discussion

19.	Find the mean of the given data:Marks; 20 22 25 30 35 39 45 50F ; 4 6 8 10 8 7 5 2
Answer» Step-by-step EXPLANATION: SUM of OBSERVATION / no. Of observation

19.

Find the mean of the given data:Marks; 20 22 25 30 35 39 45 50F ; 4 6 8 10 8 7 5 2

Answer»

Step-by-step EXPLANATION:

SUM of OBSERVATION / no. Of observation

Discussion

20.	Atul has hundred notes of Rs. 500. He stacks them one on top of the other. Name the shape which will be formed after stacking the notes?
Answer» ANSWER: the shape formed will be cuboid as a note is RECTANGULAR thus RECTANGLE STACKED on top form cuboid

20.

Atul has hundred notes of Rs. 500. He stacks them one on top of the other. Name the shape which will be formed after stacking the notes?

Answer»

ANSWER:

the shape formed will be cuboid

as a note is RECTANGULAR thus RECTANGLE STACKED on top form cuboid

Discussion

21.	Class ninth cbse,please fast
Answer» Given: Angle ACD=110 degree To find: angle BAC angle ABC angle ACB TO PROVE: ANGLE SUM PROPERTY OF TRIANGLE SOL: Ang ACD+ Ang ACB = 180 (linear pair) Ang ACB = 180- 110 Ang = 70 ang BAC + ang ACD= 180 (EXTERIOR ANGLE PROPERTY) ang BAC =70 degree ang ABC + ang BAC + ang ACB = 180 (ANGLE SUM PROPERTY OF TEAIANGLE) ang ABC= 180 -140 ang ABC= 40 ang ABC + ang BAC + ang ACB =40+70+70 =180 SUM OF ALL INTERIOR ANGLES OFVTRIANGLE IS 180 DEGREE . HENCE ANGLE SUM PROPERTY IS PROVED.

21.

Class ninth cbse,please fast

Answer»

Given:

Angle ACD=110 degree

To find:

angle BAC

angle ABC

angle ACB

TO PROVE:

ANGLE SUM PROPERTY OF TRIANGLE

SOL:

Ang ACD+ Ang ACB = 180 (linear pair)

Ang ACB = 180- 110

Ang = 70

ang BAC + ang ACD= 180 (EXTERIOR ANGLE PROPERTY)

ang BAC =70 degree

ang ABC + ang BAC + ang ACB = 180 (ANGLE SUM PROPERTY OF TEAIANGLE)

ang ABC= 180 -140

ang ABC= 40

ang ABC + ang BAC + ang ACB

=40+70+70

=180

SUM OF ALL INTERIOR ANGLES OFVTRIANGLE IS 180 DEGREE .

HENCE ANGLE SUM PROPERTY IS PROVED.

Discussion

22.	B. is o the mid point of segment AB and PQ? Givereason
Answer» Step-by-step EXPLANATION: no REASON no reason no reason no reason no reason no reason because your are not studying MATHS buddy

22.

B. is o the mid point of segment AB and PQ? Givereason

Answer»

Step-by-step EXPLANATION:

no REASON

no reason

because your are not studying MATHS buddy

Discussion

23.	8 men complete there work in 12 hours in how many hours 6 men complete the same work
Answer» Step-by-step explanation: 8man complete the work in 12 HRS 1 man will complete= 8/12 6 man will complete =6×8/12 = 4 hrs

23.

8 men complete there work in 12 hours in how many hours 6 men complete the same work

Answer»

Step-by-step explanation:

8man complete the work in 12 HRS

1 man will complete= 8/12

6 man will complete =6×8/12

= 4 hrs

Discussion

24.	The simplest value of1- (1/2+1/3) is wht??? jaldi bolna
Answer» Step-by-step EXPLANATION: HOPE THIS WILL HELP U DUDE♠☝

24.

The simplest value of1- (1/2+1/3) is wht??? jaldi bolna

Answer»

Step-by-step EXPLANATION:

HOPE THIS WILL HELP U DUDE♠☝

Discussion

25.	Read the questions properly and answer the above questions.No spam please very urgent
Answer» ANSWER: DISCOUNT =MARKED PRICE -SELLING price

25.

Read the questions properly and answer the above questions.No spam please very urgent

Answer»

ANSWER:

DISCOUNT =MARKED PRICE -SELLING price

Discussion

26.	Use multiples of 10 to find products : option ( b ) 8 × 29
Answer» ANSWER: 232 answer to the inbox to be able to do this is the best of I am not a BIG fan of your help in the morning SIR we can get the same problem here is a BIT more than

26.

Use multiples of 10 to find products : option ( b ) 8 × 29

Answer»

ANSWER:

232 answer to the inbox to be able to do this is the best of I am not a BIG fan of your help in the morning SIR we can get the same problem here is a BIT more than

Discussion

27.	What should be added to to minus 7 by 16 to get 13 by 20ur options are1) -1whole 8/30 2) 1whole 7/80 3) 2whole 8/40
Answer» Answer: 1 WHOLE 7/80 IS RIGHT ANSWER PLEASE MARK ME BRAINLIEST

27.

What should be added to to minus 7 by 16 to get 13 by 20ur options are1) -1whole 8/30 2) 1whole 7/80 3) 2whole 8/40

Answer»

Answer:

1 WHOLE 7/80 IS RIGHT ANSWER PLEASE MARK ME BRAINLIEST

Discussion

28.	Plz solve guys I am brother of misscinderella ...
Answer» 30 SHOULD BE THE ANSWER PLEASE MARK AS BRAINLIEST. :-)

28.

Plz solve guys I am brother of misscinderella ...

Answer»

30 SHOULD BE THE ANSWER

PLEASE MARK AS BRAINLIEST.

:-)

Discussion

29.	Divide 34 into two parts such that 4/7 of one part is equals to 2 by 5 of the other
Answer» Step-by-step explanation: PLS mark me as brainlist hope this is helpful.... 34 is divided into two parts in such a way that first part = 14 and second part = 20 Explanation: Given number = 34 Let 34 is divided into two parts i.e First part = X Second part = (34-x) According to the problem given, \begin{gathered}\frac{4}{7}\:of \: first \: part\\=\frac{2}{5} \: of\: second \: part\end{gathered} 7 4 offirstpart = 5 2 ofsecondpart \IMPLIES \frac{4}{7}\times x = \frac{2}{5} \times (34-x)⟹ 7 4 ×x= 5 2 ×(34−x) Do the cross multiplication, we get \implies 20x = 14(34-x)⟹20x=14(34−x) \implies 10x = 7(34-x)⟹10x=7(34−x) \implies 10x=7\times 34 -7x⟹10x=7×34−7x \implies 10x+7x = 7\times 34⟹10x+7x=7×34 \implies 17x = 7\times34⟹17x=7×34 \implies x = \frac{7\times 34}{17}⟹x= 17 7×34 After cancellation,we get \implies x = 14⟹x=14 First part = x = 14 Second part = 34-x = 34 - 14 = 20 Therefore, 34 is divided into two parts in such a way that first part = 14 and second part = 20 ••••

29.

Divide 34 into two parts such that 4/7 of one part is equals to 2 by 5 of the other

Answer»

Step-by-step explanation:

PLS mark me as brainlist

hope this is helpful....

34 is divided into two parts in such a way that

first part = 14

and

second part = 20

Explanation:

Given number = 34

Let 34 is divided into two parts

i.e

First part = X

Second part = (34-x)

According to the problem given,

\begin{gathered}\frac{4}{7}\:of \: first \: part\\=\frac{2}{5} \: of\: second \: part\end{gathered}

7

4

offirstpart

=

5

2

ofsecondpart

\IMPLIES \frac{4}{7}\times x = \frac{2}{5} \times (34-x)⟹

7

4

×x=

5

2

×(34−x)

Do the cross multiplication, we get

\implies 20x = 14(34-x)⟹20x=14(34−x)

\implies 10x = 7(34-x)⟹10x=7(34−x)

\implies 10x=7\times 34 -7x⟹10x=7×34−7x

\implies 10x+7x = 7\times 34⟹10x+7x=7×34

\implies 17x = 7\times34⟹17x=7×34

\implies x = \frac{7\times 34}{17}⟹x=

17

7×34

After cancellation,we get

\implies x = 14⟹x=14

First part = x = 14

Second part = 34-x

= 34 - 14

= 20

Therefore,

34 is divided into two parts in such a way that

first part = 14

and

second part = 20

••••

Discussion

30.	Who was alivardi Khan
Answer» Alivardi Khan was the Nawab of Bengal from 1740 to 1756. He toppled the Nasiri Dynasty of the Nawabs and TOOK powers of the Nawab. He is also one of the few Mughal-era leaders KNOWN for his victory during the Battle of BURDWAN against the Maratha Empire during the Maratha INVASIONS of Bengal.

Discussion

31.	A Rhombus whose one side is 10 cm has one diagonal length is 12 cm. Find the measurement of other diagonals.
Answer» » To Find : The length of other diagonal . » We Know : Pythagoras theorem : $\sf{\underline{\boxed{h^{2} = p^{2} + b^{2}}}}$ Where , h = hypotenuse b = base p = height » Concept : We Know ,that the in rhombus the diagonals intersect each other equally and at 90°. So the length AO will be Equal to length OC. Hence , we get the length as : $\sf{\underline{\boxed{AO = OC = 6 cm}}}$ And the given length is 10 cm . According to the Diagram , if we look at the FIGURE ADO ,we get a right-angled triangle having 90° at point O . So by this information ,we can find the length OD , which is the CORRESPONDING height ,by using the Pythagoras theorem . » Solution : Given Information : Hypotenuse = 10 cm Base = 6 cm Taken : Let the Corresponding height be x Formula : $\sf{\underline{\boxed{h^{2} = p^{2} + b^{2}}}}$ By substituting the values in it ,we get : $\sf{\Rightarrow 10^{2} = x^{2} + 6^{2}}$ Now, Subtracting 6² from both the sides ,we get : $\sf{\Rightarrow 10^{2} - 6^{2} = x^{2} + 6^{2} - 6^{2}}$ $\sf{\Rightarrow 10^{2} - 6^{2} = x^{2}}$ By Square rooting on both the sides ,we get : $\sf{\Rightarrow \sqrt{10^{2} - 6^{2}} = \sqrt{x^{2}}}$ $\sf{\Rightarrow \sqrt{10^{2} - 6^{2}} = x^{2}}$ $\sf{\Rightarrow \sqrt{100 - 36} = x}$ $\sf{\Rightarrow \sqrt{64} = x}$ $\sf{\Rightarrow 8 cm = x}$ Hence , the Corresponding height is 8 cm . We Know, that the Diagonals intersect each other equally. And the Corresponding height is the length DO , which is equal to OB ,so the other diagonal is twice of DO, i.e. $\sf{\Rightarrow D_{2} = 2 \times DO}$ Substituting the value of DO ,in the above expression ,we get : $\sf{\Rightarrow D_{2} = 2 \times 8}$ $\sf{\Rightarrow D_{2} = 16 cm}$ Hence , the other diagonal is 16 cm. » ADDITIONAL information : Volume of a Cylinder = πr²h Surface AREA of a Cylinder = 2πr(h + r) Curved-surface area of a Cylinder = 2πrh Area of triangle = ½ × base × height

31.

A Rhombus whose one side is 10 cm has one diagonal length is 12 cm. Find the measurement of other diagonals.

Answer»

» To Find :

The length of other diagonal .

» We Know :

Pythagoras theorem :

$\sf{\underline{\boxed{h^{2} = p^{2} + b^{2}}}}$

Where ,

h = hypotenuse
b = base
p = height

» Concept :

We Know ,that the in rhombus the diagonals intersect each other equally and at 90°.

So the length AO will be Equal to length OC.

Hence , we get the length as :

$\sf{\underline{\boxed{AO = OC = 6 cm}}}$

And the given length is 10 cm .

According to the Diagram , if we look at the FIGURE ADO ,we get a right-angled triangle having 90° at point O .

So by this information ,we can find the length OD , which is the CORRESPONDING height ,by using the Pythagoras theorem .

» Solution :

Given Information :

Hypotenuse = 10 cm

Base = 6 cm

Taken :

Let the Corresponding height be x

Formula :

$\sf{\underline{\boxed{h^{2} = p^{2} + b^{2}}}}$

By substituting the values in it ,we get :

$\sf{\Rightarrow 10^{2} = x^{2} + 6^{2}}$

Now, Subtracting 6² from both the sides ,we get :

$\sf{\Rightarrow 10^{2} - 6^{2} = x^{2} + 6^{2} - 6^{2}}$

$\sf{\Rightarrow 10^{2} - 6^{2} = x^{2}}$

By Square rooting on both the sides ,we get :

$\sf{\Rightarrow \sqrt{10^{2} - 6^{2}} = \sqrt{x^{2}}}$

$\sf{\Rightarrow \sqrt{10^{2} - 6^{2}} = x^{2}}$

$\sf{\Rightarrow \sqrt{100 - 36} = x}$

$\sf{\Rightarrow \sqrt{64} = x}$

$\sf{\Rightarrow 8 cm = x}$

Hence , the Corresponding height is 8 cm .

We Know, that the Diagonals intersect each other equally.

And the Corresponding height is the length DO , which is equal to OB ,so the other diagonal is twice of DO, i.e.

$\sf{\Rightarrow D_{2} = 2 \times DO}$

Substituting the value of DO ,in the above expression ,we get :

$\sf{\Rightarrow D_{2} = 2 \times 8}$

$\sf{\Rightarrow D_{2} = 16 cm}$

Hence , the other diagonal is 16 cm.

» ADDITIONAL information :

Volume of a Cylinder = πr²h

Surface AREA of a Cylinder = 2πr(h + r)

Curved-surface area of a Cylinder = 2πrh

Area of triangle = ½ × base × height

Discussion

32.	What should be added to 7/12 to get-4/15?
Answer» ANSWER: -51/60 Step-by-step EXPLANATION: HOPE it's HELPFUL to you

32.

What should be added to 7/12 to get-4/15?

Answer»

ANSWER:

-51/60

Step-by-step EXPLANATION:

HOPE it's HELPFUL to you

Discussion

33.	12. Which of the following is a pair of co prime numbers?8,453,185,356,39
Answer» Answer: 8 and 45 are PRIME NUMBERS

33.

12. Which of the following is a pair of co prime numbers?8,453,185,356,39

Answer»

Answer:

8 and 45 are PRIME NUMBERS

Discussion

34.	Answer 9 i . only please answer fast
Answer» Answer: Step-by-step EXPLANATION: a = 2, B= -6 a- (-b) = a + b 2 - ( - -6) = 2 + 6 2 - ( +6) = 8 2 - 6 = 8 -4 = 8 LHS is not equal to RHS.. Therefore, a- (-b) = a + b is not TRUE for the given value... hope it is helpful.. put TKS, vote me, MARK me as brainliest...

34.

Answer 9 i . only please answer fast

Answer»

Answer:

Step-by-step EXPLANATION:

a = 2, B= -6

a- (-b) = a + b

2 - ( - -6) = 2 + 6

2 - ( +6) = 8

2 - 6 = 8

-4 = 8

LHS is not equal to RHS..

Therefore, a- (-b) = a + b is not TRUE for the given value...

hope it is helpful..

put TKS, vote me, MARK me as brainliest...

Discussion

35.	If the exact middle rational number if 4 and 5 is 9/2 than, what is the exact middle rational number of 5 and 6?why is is the exact middle ratinal number?no silly answers. I will report the answer.
Answer» ANSWER: 11/2 is the CORRECT answer

35.

If the exact middle rational number if 4 and 5 is 9/2 than, what is the exact middle rational number of 5 and 6?why is is the exact middle ratinal number?no silly answers. I will report the answer.

Answer»

ANSWER:

11/2 is the CORRECT answer

Discussion

36.	Which measurement does 30\text{ m}30 m30, start text, space, m, end text represent?
Answer» ANSWER: Rdrxfdgears4eytir553667

36.

Which measurement does 30\text{ m}30 m30, start text, space, m, end text represent?

Answer»

ANSWER:

Rdrxfdgears4eytir553667

Discussion

37.	(x+2)^2+(y-2)^2=0, find x+y....please do this sum for me anyone... I need it very badly and I'm not being able to understand!
Answer» Answer: 2x+4+2y-4=0 2x+2y=0 x+y=0 Step-by-step explanation: PLZZZZ follow me GUYS I will follow U BACK ☺️☺️☺️☺️☺️

37.

(x+2)^2+(y-2)^2=0, find x+y....please do this sum for me anyone... I need it very badly and I'm not being able to understand!

Answer»

Answer:

2x+4+2y-4=0

2x+2y=0

x+y=0

Step-by-step explanation:

PLZZZZ follow me GUYS I will follow U BACK ☺️☺️☺️☺️☺️

Discussion

38.	Multiply (5x^2 - 3x+2) by 7x plz solve this problem.
Answer» Answer: 35x^3 - 21x^2 + 14X Step-by-step EXPLANATION: (5x^2 - 3X + 2)7X = (5x^2 7x) -(3x * 7x) +(2 * 7x) = 35x^3 - 21x^2 + 14x

38.

Multiply (5x^2 - 3x+2) by 7x plz solve this problem.

Answer»

Answer:

35x^3 - 21x^2 + 14X

Step-by-step EXPLANATION:

(5x^2 - 3X + 2)*7X

= (5x^2 * 7x) -(3x * 7x) +(2 * 7x)

= 35x^3 - 21x^2 + 14x

Discussion

39.	Guys it's urgent.Pls answer my question.Hurry up!!
Answer» Step-by-step EXPLANATION: LET the NUMBER be x according to the question 3+2x=3x 3=3x-2x 3=x

39.

Guys it's urgent.Pls answer my question.Hurry up!!

Answer»

Step-by-step EXPLANATION:

LET the NUMBER be x

according to the question

3+2x=3x

3=3x-2x

3=x

Discussion

40.	Plzz tell answer with explanation
Answer» Answer: 50° Step-by-step EXPLANATION: if L is // to m then 2x-30=x+20 x=50

40.

Plzz tell answer with explanation

Answer»

Answer:

50°

Step-by-step EXPLANATION:

if L is // to m

then

2x-30=x+20

x=50

Discussion

41.	Of union of sets.4. Verify the associative property of intersection of sets for A= =(-11, F2, 55,7}+{V3, 15,6,13} and C = {12, 13, 15,9).BE
Answer» ANSWER: L.H.S =R.H.S HENCE PROVE

41.

Of union of sets.4. Verify the associative property of intersection of sets for A= =(-11, F2, 55,7}+{V3, 15,6,13} and C = {12, 13, 15,9).BE

Answer»

ANSWER:

L.H.S =R.H.S HENCE PROVE

Discussion

42.	. Make a maze involvingthe all the concept related (addition, subtraction, multiplication, reciprocal, standard form, equivalent form)to rational numbers
Answer» Answer: yqyw have read and soul and I have read the email and I will get back to you and your FAMILY have a GREAT weekend and see they are you can you SEND me the link to the video and I will get it to you about it when you get home and we can do it tomorrow if you are INTEREST in group I have to get

42.

. Make a maze involvingthe all the concept related (addition, subtraction, multiplication, reciprocal, standard form, equivalent form)to rational numbers

Answer»

Answer:

yqyw have read and soul and I have read the email and I will get back to you and your FAMILY have a GREAT weekend and see they are you can you SEND me the link to the video and I will get it to you about it when you get home and we can do it tomorrow if you are INTEREST in group I have to get

Discussion

43.	Y+3=7please try to solve
Answer» Answer: Y=7-3=4 Step-by-step explanation: THANKS , you know this EASY QUESTION I know baby

43.

Y+3=7please try to solve

Answer»

Answer:

Y=7-3=4

Step-by-step explanation:

THANKS , you know this EASY QUESTION I know baby

Discussion

44.	10. Show 75 minutes in hours and minutes using subtraction method.11. Show 105 minutes in hours and minutes using subtraction method. how do I do it??
Answer» 0.75 *hours* 1 *HOUR* 45 *MINUTES*

44.

10. Show 75 minutes in hours and minutes using subtraction method.11. Show 105 minutes in hours and minutes using subtraction method. how do I do it??

Answer»

0.75 hours

1 HOUR 45 MINUTES

Discussion

45.	Fill in the blanks using '×' or '÷'a. 10 + 12 _____ 3 = 46b. (64×4) _____ (16×16) = 1
Answer» 10+12=22×3 = 66 64×4 =256 16×16=256 ÷ answer 1.... × 2.....÷

45.

Fill in the blanks using '×' or '÷'a. 10 + 12 _ 3 = 46b. (64×4) _ (16×16) = 1

Answer»

10+12=22×3 = 66

64×4 =256 16×16=256

÷

answer

1.... ×

2.....÷

Discussion

46.	Simplify (a2-4)(a +4) +12
Answer» ANSWER: a3+4a2-4a-16+12 a3+4a2-4a-4

46.

Simplify (a2-4)(a +4) +12

Answer»

ANSWER:

a3+4a2-4a-16+12

a3+4a2-4a-4

Discussion

47.	I will mark brainliest if anyone answers correctly
Answer» Answer: 2x - 14/3 = 8 2x - 14 = 24 2x = 24+14 2x = 38 X = 38/2 x = 19

47.

I will mark brainliest if anyone answers correctly

Answer»

Answer:

2x - 14/3 = 8

2x - 14 = 24

2x = 24+14

2x = 38

X = 38/2

x = 19

Discussion

48.	1 meat = rs550 what will be the price of 750 gram
Answer» ANSWER: Step-by-step explanation: 1 meat : 1 kg = 550 rs 750 gm = x 1000 = 550 750 = x = 550 + 750 /1000 = 1200/1000 = 2 ZERO cut =12/10 = 1.2 gm = 1 kg 200 gm. thank you

48.

1 meat = rs550 what will be the price of 750 gram

Answer»

ANSWER:

Step-by-step explanation:

1 meat : 1 kg = 550 rs

750 gm = x

1000 = 550

750 = x

= 550 + 750 /1000

= 1200/1000

= 2 ZERO cut

=12/10

= 1.2 gm

= 1 kg 200 gm.

thank you

Discussion

49.	Anhas one end point at avertex of thetriangle and the other end is contained in theopposite side to the vertex
Answer» QUESTION was SANDAL FULL not was HALF I cannot UNDERSTAND

Discussion

50.	A number changes from -20 to 30. What is the increase or decrease in thnumber ?
Answer» Answer: in -20 50 is added hope it will help you kindly MARK the answer as BRAINLIST

50.

A number changes from -20 to 30. What is the increase or decrease in thnumber ?

Answer»

Answer:

in -20

50 is added

hope it will help you kindly MARK the answer as BRAINLIST

Discussion

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