332354 + Interview Questions in Secondary School in Math

1.	If x - x is equal to 0 then 5x - 4x equal to
Answer» HEY MATE here is UR ANSWER x-x=0 5x-4x= x. hope it HELPS. ☆☆☆

1.

If x - x is equal to 0 then 5x - 4x equal to

Answer»

HEY MATE here is UR ANSWER

x-x=0

5x-4x= x.

hope it HELPS.

☆☆☆

Discussion

2.	What will be the 60% of 2290
Answer» $\frac{60}{100} \times 2290$ $\frac{6}{10} \times 2290$ $6 \times 229$ $1374$ That's the ANSWER

2.

What will be the 60% of 2290

Answer»

$\frac{60}{100} \times 2290$

$\frac{6}{10} \times 2290$

$6 \times 229$

$1374$

That's the ANSWER

Discussion

3.	Write the additve inverseof-7/-8
Answer» $\frac{ - 7}{ - 8} = \frac{7}{8} \\ additive \: inverse \: of \: \frac{7}{8} \: \: is \: \frac{ - 7}{8}$ *HOPE* *ITS* *HELPS* U.. *PLZ* *MARKS* AS *BRAINLIEST*..

3.

Write the additve inverseof-7/-8

Answer»

$\frac{ - 7}{ - 8} = \frac{7}{8} \\ additive \: inverse \: of \: \frac{7}{8} \: \: is \: \frac{ - 7}{8}$

HOPE ITS HELPS U..

PLZ MARKS AS BRAINLIEST..

Discussion

4.	1. Solve the following pairs of equations by reducing them to a pair of linear equations:7x-2y/xy=58x+7y/xy=15
Answer» AnswEr: Given Equation $\bullet\:\sf\: \dfrac{7x \:-\:2y}{xy} = 5$ $\:\:\: \sf\dfrac{8x \:+\:7y}{xy} = 15$ $:\implies\sf\: \dfrac{7x}{xy} \:-\: \dfrac{2y}{xy} = 5$ ---------[EQUATION 1] $:\implies\sf\: \dfrac{7}{y}\:-\:\dfrac{2}{x} = 5$ $:\implies\sf\: 7 \times \dfrac{1}{y}\:-\: 2 \times \dfrac{1}{x}=5$ Here, we get $\sf\dfrac{1}{y} = <klux>V</klux> \:\& \: \dfrac{1}{x} = u$ Similarly, $:\implies\sf\: \dfrac{8x}{xy}\:+\:\dfrac{7y}{xy} = 15$ ---------[Equation 2] $:\implies\sf\: \dfrac{8}{y} \:+\;\dfrac{7}{x} = 15$ $:\implies\sf\: 8 \times \dfrac{1}{y} \:+\: 7 \times \dfrac{1}{x} = 15$ Now, From Equation 1 & 2 $:\implies\sf\: 7v - 2u = 5$ ------[Equation 3] $:\implies\sf\: 8v + 7u = 15$ -----[Equation 4] Multiplying Equation Equation (3) by 7 and Equation (4) by 2 $:\implies\sf\: 7 \times [7v \:-\:2u] = 5 \times 7$ $:\implies\sf\bold{49v\: -\: 14u\: =\: 35}$ -------[Equation 5] $:\implies\sf\: 2 \times [8v \:+\:7u] = 15 \times 2$ $:\implies\sf\bold{16v\:+\:14u\:=\:30}$ --------[Equation 6] Now, From Equations 5 & 6 $:\implies\sf\: 49v - 14u = 35$ $:\implies\sf\: 16v + 14u = 30$ $:\implies\sf\: 65v = 65$ $:\implies\sf\: v = \cancel\dfrac{65}{65}$ $:\implies\boxed{\sf{\pink{v\:=\:1}}}$ $\rule{200}2$ Substituting the Value of v in Equation 3 $:\implies\sf\: 7v - 2u = 5$ $:\implies\sf\: 7(1) - 2u = 5$ $:\implies\sf\: -2u = 5 - 7$ $:\implies\sf\: -2u = -2$ $:\implies\sf\: u = \cancel\dfrac{-2}{-2}$ $:\implies\boxed{\sf{\pink{u\:=\:1}}}$ $\rule{200}2$ $:\implies\sf\: \dfrac{1}{y} = v$ $:\implies\sf\: \dfrac{1}{y} = 1$ $:\implies\sf\: 1 = y \times 1$ $:\implies\boxed{\sf{\pink{y\:=\:1}}}$ $\rule{200}2$ $:\implies\sf\:\dfrac{1}{x}=u$ $:\implies\sf\: \dfrac{1}{x}=1$ $:\implies\sf\: 1 = x \times 1$ $:\implies\boxed{\sf{\pink{x\:=\:1}}}$ Hence, Value of x & y is 1.

4.

1. Solve the following pairs of equations by reducing them to a pair of linear equations:7x-2y/xy=58x+7y/xy=15

Answer»

AnswEr:

Given Equation

$\bullet\:\sf\: \dfrac{7x \:-\:2y}{xy} = 5$

$\:\:\: \sf\dfrac{8x \:+\:7y}{xy} = 15$

$:\implies\sf\: \dfrac{7x}{xy} \:-\: \dfrac{2y}{xy} = 5$ ---------[EQUATION 1]

$:\implies\sf\: \dfrac{7}{y}\:-\:\dfrac{2}{x} = 5$

$:\implies\sf\: 7 \times \dfrac{1}{y}\:-\: 2 \times \dfrac{1}{x}=5$

Here, we get $\sf\dfrac{1}{y} = <klux>V</klux> \:\& \: \dfrac{1}{x} = u$

Similarly,

$:\implies\sf\: \dfrac{8x}{xy}\:+\:\dfrac{7y}{xy} = 15$ ---------[Equation 2]

$:\implies\sf\: \dfrac{8}{y} \:+\;\dfrac{7}{x} = 15$

$:\implies\sf\: 8 \times \dfrac{1}{y} \:+\: 7 \times \dfrac{1}{x} = 15$

Now, From Equation 1 & 2

$:\implies\sf\: 7v - 2u = 5$ ------[Equation 3]

$:\implies\sf\: 8v + 7u = 15$ -----[Equation 4]

Multiplying Equation Equation (3) by 7 and Equation (4) by 2

$:\implies\sf\: 7 \times [7v \:-\:2u] = 5 \times 7$

$:\implies\sf\bold{49v\: -\: 14u\: =\: 35}$ -------[Equation 5]

$:\implies\sf\: 2 \times [8v \:+\:7u] = 15 \times 2$

$:\implies\sf\bold{16v\:+\:14u\:=\:30}$ --------[Equation 6]

Now, From Equations 5 & 6

$:\implies\sf\: 49v - 14u = 35$

$:\implies\sf\: 16v + 14u = 30$

$:\implies\sf\: 65v = 65$

$:\implies\sf\: v = \cancel\dfrac{65}{65}$

$:\implies\boxed{\sf{\pink{v\:=\:1}}}$

$\rule{200}2$

Substituting the Value of v in Equation 3

$:\implies\sf\: 7v - 2u = 5$

$:\implies\sf\: 7(1) - 2u = 5$

$:\implies\sf\: -2u = 5 - 7$

$:\implies\sf\: -2u = -2$

$:\implies\sf\: u = \cancel\dfrac{-2}{-2}$

$:\implies\boxed{\sf{\pink{u\:=\:1}}}$

$\rule{200}2$

$:\implies\sf\: \dfrac{1}{y} = v$

$:\implies\sf\: \dfrac{1}{y} = 1$

$:\implies\sf\: 1 = y \times 1$

$:\implies\boxed{\sf{\pink{y\:=\:1}}}$

$\rule{200}2$

$:\implies\sf\:\dfrac{1}{x}=u$

$:\implies\sf\: \dfrac{1}{x}=1$

$:\implies\sf\: 1 = x \times 1$

$:\implies\boxed{\sf{\pink{x\:=\:1}}}$

Hence, Value of x & y is 1.

Discussion

5.	A fruit-seller buys oranges at 4 for Rs.3 and sells them at 3 for Rs.4 Find his profitpercent.
Answer» Answer: 12 PERCENTAGE of PROFIT he GETS

5.

A fruit-seller buys oranges at 4 for Rs.3 and sells them at 3 for Rs.4 Find his profitpercent.

Answer»

Answer:

12 PERCENTAGE of PROFIT he GETS

Discussion

6.	4,7,11,44,100,?a)225b)235c)145d)316
Answer» 225 is ANSWER HOPE it is HELPFUL to you

6.

4,7,11,44,100,?a)225b)235c)145d)316

Answer»

225 is ANSWER

HOPE it is HELPFUL to you

Discussion

7.	4 9 16 25 =152, 36 49 64 81=2488 then 1 64 81 36=?
Answer» Answer: come on bro i don't know the answer Step-by-step explanation: FIRST we have to see the QUESTION if we don't know the answer also we should act that we know the answer after we should say that I don't know the answer this is the best PROCESS FOLLOW this only

7.

4 9 16 25 =152, 36 49 64 81=2488 then 1 64 81 36=?

Answer»

Answer:

come on bro i don't know the answer

Step-by-step explanation:

FIRST we have to see the QUESTION if we don't know the answer also we should

act that we know the answer

after we should say that I don't know the answer

this is the best PROCESS FOLLOW this only

Discussion

8.	Answer this plzzzzzzzzxzzzzzzzzzzzzzz
Answer» Answer: Here is your answer Step-by-step explanation: let the players of tennis , tennikoit and badminton are REPRESENTED by T , TK , B . TOTAL no. of members in the club = 290 Those who did not play any of the three games = 75 :. n ( T U TK U B ) = 290 - 75 = 215 n ( T U TK U B ) = n ( T ) + n ( TK ) + n ( B ) - n ( Y Û TK ) - n ( TK Û B ) - n ( T Û B ) + n ( T Û TK Û B ) 215 = 120 + 110 + 130 - 170 - 55 - 60 + n ( T Û TK Û B ) => 215 = 360 - 185 + n ( T Û TK Û B ) => 215 = 175 + n ( T Û TK Û B ) => 215 - 175 = n ( T Û TK Û B ) => 40 = n ( T Û TK Û B ) :. No. of persons who played all the three games = 40

8.

Answer this plzzzzzzzzxzzzzzzzzzzzzzz

Answer»

Answer:

Here is your answer

Step-by-step explanation:

let

the players of tennis , tennikoit and badminton are REPRESENTED by T , TK , B .

TOTAL no. of members in the club = 290

Those who did not play any of the three games = 75

:. n ( T U TK U B ) = 290 - 75 = 215

n ( T U TK U B ) = n ( T ) + n ( TK ) + n ( B ) - n ( Y Û TK ) - n ( TK Û B ) - n ( T Û B ) + n ( T Û TK Û B )

215 = 120 + 110 + 130 - 170 - 55 - 60 + n ( T Û TK Û B )

=> 215 = 360 - 185 + n ( T Û TK Û B )

=> 215 = 175 + n ( T Û TK Û B )

=> 215 - 175 = n ( T Û TK Û B )

=> 40 = n ( T Û TK Û B )

:. No. of persons who played all the three games = 40

Discussion

9.	(-5/18)+(7/12)+(-8/15)+(3/10). simplify
Answer» Step-by-step EXPLANATION: $( \frac{ - 5}{18} ) + ( \frac{7}{12} ) + ( \frac{ - 8}{15} ) + ( \frac{3}{10} ) \\ \frac{ - 50 + 105 - 96 + 54}{180} \\ \frac{305}{180} = \frac{61}{36}$ hope it is HELPFUL to you please mark me brainliest

9.

(-5/18)+(7/12)+(-8/15)+(3/10). simplify

Answer»

Step-by-step EXPLANATION:

$( \frac{ - 5}{18} ) + ( \frac{7}{12} ) + ( \frac{ - 8}{15} ) + ( \frac{3}{10} ) \\ \frac{ - 50 + 105 - 96 + 54}{180} \\ \frac{305}{180} = \frac{61}{36}$

hope it is HELPFUL to you

please mark me brainliest

Discussion

10.	4+7+2 =203+4+1 =105+7+5 =1734+8+3 =?
Answer» ANSWER: 15 i THINK it is a RIGHT answer

10.

4+7+2 =203+4+1 =105+7+5 =1734+8+3 =?

Answer»

ANSWER:

15 i THINK it is a RIGHT answer

Discussion

11.	If the nth term of a sequence is 5+2n,then the sum of first 20 terms and 30 terms are
Answer» ANSWER:S20=520 S30=1080 Step-by-step explanation: Tn=5+2n T1=a=5+2 (1)=5+2=7 T2=5+2 (2)=5+4=9 Common DIFFERENCE =T2-T1=9-7=2 Sn=n/2 (2A+(n-1)d) S20=20/2 (2 (7)+(20-1)2) = 10 (14+19 (2)) =10 (14+38) = 10 (52) =520// S30=30/2 (2 (7)+(30-1)2) = 15 (14+29 (2)) = 15 (14+58) = 15 (72) = 1080//

11.

If the nth term of a sequence is 5+2n,then the sum of first 20 terms and 30 terms are

Answer»

ANSWER:S20=520

S30=1080

Step-by-step explanation:

Tn=5+2n

T1=a=5+2 (1)=5+2=7

T2=5+2 (2)=5+4=9

Common DIFFERENCE =T2-T1=9-7=2

Sn=n/2 (2A+(n-1)d)

S20=20/2 (2 (7)+(20-1)2) = 10 (14+19 (2)) =10 (14+38) = 10 (52) =520//

S30=30/2 (2 (7)+(30-1)2) = 15 (14+29 (2)) = 15 (14+58) = 15 (72) = 1080//

Discussion

12.	5/8 &7/215+14. 29_____ =. ------ 24. 24
Answer» Answer: fThe table shows pairs of random DIGITS. The pairs in each group simulate the 5 SHOTS taken by the opponent. Answer the QUESTIONS to estimate the probability that the Iceblades will win the game. 1. The paired digits 00 to 99 represent 100 shots. Let 00 to 72 = a SHOT that is saved. Which digits represent a goal scored? Explain. Write your answer in the space below. 2. Each group represents the 5 shots taken by the other team. To win the game, the Iceblades cannot let the other team score any goals. 3. Group 1 is a success. Explain why. Write your answer in the space below. 4. In this simulation, which groups are successes? How many successes are there in the 10 groups? Write your answer in the space below. 5. Estimate the probability the Iceblades will win the game. Give your answer as a percent. Write your answer in the space below.

12.

5/8 &7/215+14. 29_____ =. ------ 24. 24

Answer»

Answer:

fThe table shows pairs of random DIGITS. The pairs in each group simulate the 5 SHOTS taken by the opponent.

Answer the QUESTIONS to estimate the probability that the Iceblades will win the game.

1. The paired digits 00 to 99 represent 100 shots.

Let 00 to 72 = a SHOT that is saved. Which digits represent a goal scored? Explain.

Write your answer in the space below.

2. Each group represents the 5 shots taken by the other team. To win the game, the Iceblades cannot let the other team score any goals.

3. Group 1 is a success. Explain why.

Write your answer in the space below.

4. In this simulation, which groups are successes? How many successes are there in the 10 groups?

Write your answer in the space below.

5. Estimate the probability the Iceblades will win the game. Give your answer as a percent.

Write your answer in the space below.

Discussion

13.	RIDDLE!! RIDDLE!! RIDDLE!!the riddle starts.:prices-1mango=1ruppee1 coconut = 5 rupees 1 ruppee = 20 lemons. You can not calculate by breaking such as 10 lemons. you have to buy the whole. Each product should be included. no matters the number. YOU HAVE 100 RUPEES AND YOU HAVE TO SPEND ALL OF IT TO BUY HUNDERED PRODUCTS.
Answer» 1 apple cost is 5 rupee 100fruits=100rupees rs2=40lemons rs1=1mango Rs95=19apples 100=100fruits. so you spend Rs 100 and GET 100 FRUITS . Rs 100 is spend for each FRUIT and get PROBABLY at same TIME

13.

RIDDLE!! RIDDLE!! RIDDLE!!the riddle starts.:prices-1mango=1ruppee1 coconut = 5 rupees 1 ruppee = 20 lemons. You can not calculate by breaking such as 10 lemons. you have to buy the whole. Each product should be included. no matters the number. YOU HAVE 100 RUPEES AND YOU HAVE TO SPEND ALL OF IT TO BUY HUNDERED PRODUCTS.

Answer»

1 apple cost is 5 rupee

100fruits=100rupees

rs2=40lemons

rs1=1mango

Rs95=19apples

100=100fruits. so you spend Rs 100 and GET 100 FRUITS . Rs 100 is spend for each FRUIT and get PROBABLY at same TIME

Discussion

14.	Define tangent please
Answer» ANSWER: a line which touch a CIRCLE at any ONE point is called TANGENT..... hope it may help u please mark it as a brainlist answer

14.

Define tangent please

Answer»

ANSWER:

a line which touch a CIRCLE at any ONE point is called TANGENT.....

hope it may help u

please mark it as a brainlist answer

Discussion

15.	Find The Value Of x i 2^x + 2^x + 2^x = 196
Answer» ⠀⠀ıllıllı uoᴉʇnloS ıllıllı $\setlength{\unitlength}{1.0 cm}}\begin{picture}(12,4)\thicklines\put(1,1){\line(1,0){<klux>6</klux>.5}}\put(1,1.1){\line(1,0){6.5}}\end{picture}$ Given: 2^X + 2^x + 2^x = 192 2^x + 2^x + 2^x = 192 ➠ 3^x 2^x = 192 ➠ 2X = 192/3 ➠ 2x = 64 ➠ 2x = 26 ➠ x = 6 $\setlength{\unitlength}{1.0 cm}}\begin{picture}(12,4)\thicklines\put(1,1){\line(1,0){6.5}}\put(1,1.1){\line(1,0){6.5}}\end{picture}$

15.

Find The Value Of x i 2^x + 2^x + 2^x = 196

Answer»

⠀⠀ıllıllı uoᴉʇnloS ıllıllı

$\setlength{\unitlength}{1.0 cm}}\begin{picture}(12,4)\thicklines\put(1,1){\line(1,0){<klux>6</klux>.5}}\put(1,1.1){\line(1,0){6.5}}\end{picture}$

Given:

2^X + 2^x + 2^x = 192

2^x + 2^x + 2^x = 192

➠ 3^x 2^x = 192

➠ 2X = 192/3

➠ 2x = 64

➠ 2x = 26

➠ x = 6

$\setlength{\unitlength}{1.0 cm}}\begin{picture}(12,4)\thicklines\put(1,1){\line(1,0){6.5}}\put(1,1.1){\line(1,0){6.5}}\end{picture}$

Discussion

16.	9 Rashmi height is 250 cm and Reshma is 25 cm taller than Rashmi. Find the ratiothe heightOf both
Answer» ANSWER: 1 : 10. is the answer of this QUESTION

16.

9 Rashmi height is 250 cm and Reshma is 25 cm taller than Rashmi. Find the ratiothe heightOf both

Answer»

ANSWER:

1 : 10. is the answer of this QUESTION

Discussion

17.	Two numbers diffrence by 3 the sum oftwice the smaller number and twice thegreater number is to find the number.
Answer» Answer: Step-by-step EXPLANATION: Maths , Linear Equations in One Variable Asked by Adarsh. 3 Answers. Let the first NUMBER = x. So, the second number = 5x. Now given, if 21 is added to both the number then one of the new number becomes twice the ... x= 21/3. => x = 7. So, the first number = x = 7. and the second number = 5x = 5*7 = 35

17.

Two numbers diffrence by 3 the sum oftwice the smaller number and twice thegreater number is to find the number.

Answer»

Answer:

Step-by-step EXPLANATION:

Maths , Linear Equations in One Variable Asked by Adarsh. 3 Answers. Let the first NUMBER = x. So, the second number = 5x. Now given, if 21 is added to both the number then one of the new number becomes twice the ... x= 21/3. => x = 7. So, the first number = x = 7. and the second number = 5x = 5*7 = 35

Discussion

18.	a man runs around a square garden of length 25 m .if he runs for a total of 4000 m,how many times did he run around the garden?
Answer» ANSWER: have you GOT a NEW JOB and the other

18.

a man runs around a square garden of length 25 m .if he runs for a total of 4000 m,how many times did he run around the garden?

Answer»

ANSWER:

have you GOT a NEW JOB and the other

Discussion

19.	Anser the follwing2p²q²- 3pq + 4, 5 + 7pq - 3p²q²,4p²q² + 10pq
Answer» HOPE this will HELP you ☺️

19.

Anser the follwing2p²q²- 3pq + 4, 5 + 7pq - 3p²q²,4p²q² + 10pq

Answer»

HOPE this will HELP you ☺️

Discussion

20.	7. Factorise : (x^2 – 3x) (x^2 – 3x - 1) – 20.
Answer» ANSWWR: Hi , ( x² - 3X ) ( x² - 3x - 1 ) - 20 Let a = x² - 3x ---( 1 ) Now , the expression becomes , a( a - 1 ) - 20 = a² - a - 20 = a² - 5A + 4A - 20 = a( a - 5 ) + 4( a - 5 ) = ( a - 5 ) ( a + 4 ) = ( x² - 3x - 5 ) ( x² - 3x + 4 ) [ from ( 1 ) I hope this helps you Mark it as brainalist

20.

7. Factorise : (x^2 – 3x) (x^2 – 3x - 1) – 20.

Answer»

ANSWWR:

Hi ,

( x² - 3X ) ( x² - 3x - 1 ) - 20

Let a = x² - 3x ---( 1 )

Now , the expression becomes ,

a( a - 1 ) - 20

= a² - a - 20

= a² - 5A + 4A - 20

= a( a - 5 ) + 4( a - 5 )

= ( a - 5 ) ( a + 4 )

= ( x² - 3x - 5 ) ( x² - 3x + 4 )

[ from ( 1 )

I hope this helps you

Mark it as brainalist

Discussion

21.	Prove that tan e+cot e=sec e+cosec e
Answer» Answer: Step-by-step explanation: TAN e + cot e=sec e COSEC e LHS=tan e+cot e =sin e/cos e+ cos e/sin e =(sin^2 e+cos^2 e)/cos e sin e =1/cos e sin e =sec e cosec e =RHS Hope this will be helpful to you and PLEASE mark my answer as the brainleast answer.plz plz plz..........

21.

Prove that tan e+cot e=sec e+cosec e

Answer»

Answer:

Step-by-step explanation:

TAN e + cot e=sec e COSEC e

LHS=tan e+cot e

=sin e/cos e+ cos e/sin e

=(sin^2 e+cos^2 e)/cos e sin e

=1/cos e sin e

=sec e cosec e

=RHS

Hope this will be helpful to you and PLEASE mark my answer as the brainleast answer.plz plz plz..........

Discussion

22.	I am the successor of the largest 7 digit number who am I
Answer» $\huge{\fbox{\fbox{\bigstar{\purple{\mathfrak{Answer::}}}}}}$ $Largest \ 7 \ digit \ number=》9999999$ $Successor \ of \ 9999999 \ is=》10000000$ $Hope \ It \ Helps...!!!$ $\small{\pink{@being_SaRcAsTiC}}$

Discussion

23.	Name the property for which 3/4+1/3=1/3+3/4
Answer» ANSWER: Commutative Property 3/4+1/3=1/3+3/4 is in the form a+b=b+a The WORD "commutative" COMES from "commute" or "MOVE AROUND"

23.

Name the property for which 3/4+1/3=1/3+3/4

Answer»

ANSWER:

Commutative Property

3/4+1/3=1/3+3/4 is in the form

a+b=b+a

The WORD "commutative" COMES from "commute" or "MOVE AROUND"

Discussion

24.	If length and breadth of floor is 10 ft, and 15 ft.find its perimeter and area?
Answer» ANSWER: Perimeter = 50ft Area = 150ft^2 Step-by-step EXPLANATION: LENGTH of floor = 10 ft Breadth of floor = 15ft Perimeter = 2(l+b) = 2× ( 10+15) ft = 2× 25 = 50ft Area = l × b = 10ft × 15ft = 150ft^2

24.

If length and breadth of floor is 10 ft, and 15 ft.find its perimeter and area?

Answer»

ANSWER:

Perimeter = 50ft

Area = 150ft^2

Step-by-step EXPLANATION:

LENGTH of floor = 10 ft

Breadth of floor = 15ft

Perimeter = 2(l+b) = 2× ( 10+15) ft = 2× 25 = 50ft

Area = l × b = 10ft × 15ft = 150ft^2

Discussion

25.	Who is father of geometry
Answer» Euclid was a great mathematician and OFTEN CALLED the FATHER of GEOMETRY....

25.

Who is father of geometry

Answer»

Euclid was a great mathematician and OFTEN CALLED the FATHER of GEOMETRY....

Discussion

26.	1/√2×√3/4 please do this sum clarity
Answer» Step-by-step EXPLANATION: $\frac{ \sqrt{3} }{4 \sqrt{2 } }$

26.

1/√2×√3/4 please do this sum clarity

Answer»

Step-by-step EXPLANATION:

$\frac{ \sqrt{3} }{4 \sqrt{2 } }$

Discussion

27.	If x=3/2, is a zero of the polynomial 2x^2+kx-12then find the value of k.
Answer» ANSWER: K=5 Step-by-step EXPLANATION: PLEASE MARK as a RESULT

27.

If x=3/2, is a zero of the polynomial 2x^2+kx-12then find the value of k.

Answer»

ANSWER:

K=5

Step-by-step EXPLANATION:

PLEASE MARK as a RESULT

Discussion

28.	(15/17)+(-15/17) which property
Answer» Answer: Additive INVERSE Step-by-step explanation: Here their SUM is zero

28.

(15/17)+(-15/17) which property

Answer»

Answer:

Additive INVERSE

Step-by-step explanation:

Here their SUM is zero

Discussion

29.	If alpha and betaare the roots of 5x²-px+1=0and alpha-beta=1, then find p
Answer» Step-by-step EXPLANATION: $5 {x}^{2} - px + 1 = 0 \\ \alpha - \beta = \: 1 \: \: ...........(1) \\ \\ \alpha + \beta = \frac{ - b}{a} \\ = > \alpha + \beta = - \frac{ - p}{5} \\ = > \alpha + \beta = \frac{p}{5} \\ \\ \alpha \beta = \frac{c}{a} \\ \alpha \beta = \frac{1}{5} \: \: \: \: \: \: ........(2) \\ \\ putting \: the \: values \: of \: \: \: \ \: beta in \: \: equation \: (1) \\ \alpha - \beta = 1 \\ = > \alpha - \frac{1}{5 \alpha } = 1 \\ = > 5 { \alpha }^{2} - 1 = 5 \alpha \\ = > 5 { \alpha }^{2} - 5 \alpha - 1 = 0 \\ = > \alpha = \frac{ 5 + - \sqrt{ {5}^{2} + 4 \times 5 \times 1} }{2 \times 5} \\ = > \alpha = \frac{5 + - \sqrt{25 + 20} }{10} \\ = > \alpha = \frac{5 + - \sqrt{45} }{10} \\ = > \alpha = \frac{5 + - 3 \sqrt{5} }{10} \\ = > \alpha = \frac{5 + 3 \sqrt{5} }{10} \: \: or \: x = \frac{5 - 3 \sqrt{5} }{10} \\ \\ \\ \\ \beta = \frac{1}{5 \alpha } \\ = \frac{1}{5 \times 5 + 3 \sqrt{5} } \times 10 \\ = \frac{2}{5 + 3 \sqrt{5} } \\ \\ \alpha + \beta = \frac{p}{5} \\ = > \frac{5 + 3 \sqrt{5} }{10} + \frac{2}{5 + 3 \sqrt{5} } = \frac{p}{5} \\ = > \frac{( {5 + 3 \sqrt{5} )}^{2} + 2 \times 10}{10(5 + 3 \sqrt{5} )} = \frac{p}{5 } \\ = > \frac{ {5}^{2} + 30 \sqrt{5} + 45 + 20}{2(5 + 3 \sqrt{5} )} = p \\ = > \frac{25 + 65 + 30 \sqrt{5} }{10 + 6 \sqrt{5} } = p \\ = > \frac{90 + 30 \sqrt{5} }{10 + 6 \sqrt{5} } = p$

29.

If alpha and betaare the roots of 5x²-px+1=0and alpha-beta=1, then find p

Answer»

Step-by-step EXPLANATION:

$5 {x}^{2} - px + 1 = 0 \\ \alpha - \beta = \: 1 \: \: ...........(1) \\ \\ \alpha + \beta = \frac{ - b}{a} \\ = > \alpha + \beta = - \frac{ - p}{5} \\ = > \alpha + \beta = \frac{p}{5} \\ \\ \alpha \beta = \frac{c}{a} \\ \alpha \beta = \frac{1}{5} \: \: \: \: \: \: ........(2) \\ \\ putting \: the \: values \: of \: \: \: \ \: beta in \: \: equation \: (1) \\ \alpha - \beta = 1 \\ = > \alpha - \frac{1}{5 \alpha } = 1 \\ = > 5 { \alpha }^{2} - 1 = 5 \alpha \\ = > 5 { \alpha }^{2} - 5 \alpha - 1 = 0 \\ = > \alpha = \frac{ 5 + - \sqrt{ {5}^{2} + 4 \times 5 \times 1} }{2 \times 5} \\ = > \alpha = \frac{5 + - \sqrt{25 + 20} }{10} \\ = > \alpha = \frac{5 + - \sqrt{45} }{10} \\ = > \alpha = \frac{5 + - 3 \sqrt{5} }{10} \\ = > \alpha = \frac{5 + 3 \sqrt{5} }{10} \: \: or \: x = \frac{5 - 3 \sqrt{5} }{10} \\ \\ \\ \\ \beta = \frac{1}{5 \alpha } \\ = \frac{1}{5 \times 5 + 3 \sqrt{5} } \times 10 \\ = \frac{2}{5 + 3 \sqrt{5} } \\ \\ \alpha + \beta = \frac{p}{5} \\ = > \frac{5 + 3 \sqrt{5} }{10} + \frac{2}{5 + 3 \sqrt{5} } = \frac{p}{5} \\ = > \frac{( {5 + 3 \sqrt{5} )}^{2} + 2 \times 10}{10(5 + 3 \sqrt{5} )} = \frac{p}{5 } \\ = > \frac{ {5}^{2} + 30 \sqrt{5} + 45 + 20}{2(5 + 3 \sqrt{5} )} = p \\ = > \frac{25 + 65 + 30 \sqrt{5} }{10 + 6 \sqrt{5} } = p \\ = > \frac{90 + 30 \sqrt{5} }{10 + 6 \sqrt{5} } = p$

Discussion

30.	Give me the answer immediate....
Answer» Answer: 1174 km,601 km Step-by-step explanation: C to A through B MEANS CB + CA, so CB + CA = 625 + 549 = 1174 km A to D is simply AD = 601 km

30.

Give me the answer immediate....

Answer»

Answer:

1174 km,601 km

Step-by-step explanation:

C to A through B MEANS CB + CA,

so CB + CA = 625 + 549 = 1174 km

A to D is simply AD = 601 km

Discussion

31.	Express in standard form 543000000
Answer» ANSWER: Step-by-step explanation: 543000000 =54310^6 =5.4310²10^6 =5.4310^8

31.

Express in standard form 543000000

Answer»

ANSWER:

Step-by-step explanation:

543000000

=543*10^6

=5.43*10²*10^6

=5.43*10^8

Discussion

32.	Log 2 of ✓2. .................................,.
Answer» ANSWER: 1/2 is the answer.

32.

Log 2 of ✓2. .................................,.

Answer»

ANSWER:

1/2 is the answer.

Discussion

33.	If cos theta +sin theta = √2 cos theta then prove that cos theta - sin theta = √2 sin theta
Answer» ANSWER: Step-by-step EXPLANATION:

33.

If cos theta +sin theta = √2 cos theta then prove that cos theta - sin theta = √2 sin theta

Answer»

ANSWER:

Step-by-step EXPLANATION:

Discussion

34.	The length of a rectangular plot of area 68 3/4 m sq m is 12 1/2 m find its width
Answer» ANSWER: width is 11/2 m or 5.5 m. Step-by-step EXPLANATION: we KNOW the length and the area. since, length * width = area, therefore, width = area/length. width= (68 3/4) / (12 1/2) = 11/2 or 5.5 m.

34.

The length of a rectangular plot of area 68 3/4 m sq m is 12 1/2 m find its width

Answer»

ANSWER:

width is 11/2 m or 5.5 m.

Step-by-step EXPLANATION:

we KNOW the length and the area.

since, length * width = area,

therefore, width = area/length.

width= (68 3/4) / (12 1/2)

= 11/2 or 5.5 m.

Discussion

35.	20=56789 then 6=? this is my equation what is the answer of this
Answer» Answer: we can SOLVE this equation by MOLE consept. Step-by-step explanation: SIX into 56789 DIVIDEDBY 20

35.

20=56789 then 6=? this is my equation what is the answer of this

Answer»

Answer:

we can SOLVE this equation by MOLE consept.

Step-by-step explanation:

SIX into 56789 DIVIDEDBY 20

Discussion

36.	Subtract 3 from the cube of +f
Answer» ANSWER: ${f}^{3} - 3 \\ \\ \\ hope \: it \: is \: helpful \: to \: you \\ please \: mark \: me \: brainliest$

36.

Subtract 3 from the cube of +f

Answer»

ANSWER:

${f}^{3} - 3 \\ \\ \\ hope \: it \: is \: helpful \: to \: you \\ please \: mark \: me \: brainliest$

Discussion

37.	Who is discovered by pi
Answer» $archimedes \: of \: syracuse \: discovered \\ pi\ (\pi).$ PLZZ LIKE the ANSWER ☺️ and MAKE it BRAINLIEST answer.

37.

Who is discovered by pi

Answer»

$archimedes \: of \: syracuse \: discovered \\ pi\ (\pi).$

PLZZ LIKE the ANSWER ☺️ and MAKE it BRAINLIEST answer.

Discussion

38.	Write the number in Expanded form of 11,03
Answer» Answer: 11 10+1 03 0+3 hope it is HELPFUL to you PLEASE MARK me BRAINLIST

38.

Write the number in Expanded form of 11,03

Answer»

Answer:

11

10+1

03

0+3

hope it is HELPFUL to you

PLEASE MARK me BRAINLIST

Discussion

39.	50gajj mein kitna sqft hota hai
Answer» ANSWER: 500 Step-by-step EXPLANATION: I HOPE this answer will CORRECT

39.

50gajj mein kitna sqft hota hai

Answer»

ANSWER:

500

Step-by-step EXPLANATION:

I HOPE this answer will CORRECT

Discussion

40.	What is the cm require to join 4 points of square having 8cm distance
Answer» ANSWER: the answer is 32 CM...............

40.

What is the cm require to join 4 points of square having 8cm distance

Answer»

ANSWER:

the answer is 32 CM...............

Discussion

41.	Simplify:30+(-14)+(-15)+12
Answer» Step-by-step explanation: 30+(-14)+(-15)+12 =30-14-15+12 =30+12-14-15 =42-29 =13

41.

Simplify:30+(-14)+(-15)+12

Answer»

Step-by-step explanation:

30+(-14)+(-15)+12

=30-14-15+12

=30+12-14-15

=42-29

=13

Discussion

42.	If mean=K(3meadian-mode)then the value of2k
Answer» ANSWER: Step-by-step EXPLANATION: Here is UR answer BUDDY

42.

If mean=K(3meadian-mode)then the value of2k

Answer»

ANSWER:

Step-by-step EXPLANATION:

Here is UR answer BUDDY

Discussion

43.	Slove 3x-5y=-1; x-y=-1 in substitution method?
Answer» ANSWER: x=-2,y=-1 it will USEFUL to you

43.

Slove 3x-5y=-1; x-y=-1 in substitution method?

Answer»

ANSWER:

x=-2,y=-1

it will USEFUL to you

Discussion

44.	56 cm 70cm radius.. Use 3.14
Answer» ANSWER: complete the QUESTION and keep PROPERLY because you are already losing POINTS WHENEVER you ask a question

44.

56 cm 70cm radius.. Use 3.14

Answer»

ANSWER:

complete the QUESTION and keep PROPERLY because you are already losing POINTS WHENEVER you ask a question

Discussion

45.	If X is a normally distributed random variable with mean 20 and standard deviation 2 then P (X < 25) is Select one: a. P (Z < 2.5) b. P (Z < 2) c. P (Z< 1) d. P ( Z > 25)
Answer» P (X < 25) = P(Z < 2.5) Step-by-step explanation: We are given that X is a normally distributed RANDOM VARIABLE with mean 20 and STANDARD DEVIATION 2. Let X = a random variable SO, X ~ Normal( $\mu=20,\sigma^{2} =2^{2}$ ) The z score probability distribution for normal distribution is given by; Z = $\frac{X-\mu}{\sigma}$ ~ N(0,1) where, $\mu$ = population mean = 20 $\sigma$ = standard deviation = 2 Now, P (X < 25) = P( $\frac{X-\mu}{\sigma}$ < $\frac{25-20}{2}$ ) = P(Z < 2.5) = 0.99379 The above probability is CALCULATED by looking at the value of x = 2.5 in the z table which has an area of 0.99379.

45.

If X is a normally distributed random variable with mean 20 and standard deviation 2 then P (X < 25) is Select one: a. P (Z < 2.5) b. P (Z < 2) c. P (Z< 1) d. P ( Z > 25)

Answer»

P (X < 25) = P(Z < 2.5)

Step-by-step explanation:

We are given that X is a normally distributed RANDOM VARIABLE with mean 20 and STANDARD DEVIATION 2.

Let X = a random variable

SO, X ~ Normal( $\mu=20,\sigma^{2} =2^{2}$ )

The z score probability distribution for normal distribution is given by;

Z = $\frac{X-\mu}{\sigma}$ ~ N(0,1)

where, $\mu$ = population mean = 20

$\sigma$ = standard deviation = 2

Now, P (X < 25) = P( $\frac{X-\mu}{\sigma}$ < $\frac{25-20}{2}$ ) = P(Z < 2.5)

= 0.99379

The above probability is CALCULATED by looking at the value of x = 2.5 in the z table which has an area of 0.99379.

Discussion

46.	Write the number name for 23,00,04,000f
Answer» TWENTY THREE CRORE FOUR THOUSAND

46.

Write the number name for 23,00,04,000f

Answer»

TWENTY THREE CRORE FOUR THOUSAND

Discussion

47.	the length breadth and height of a cuboid are 10m 5 m and 8 m respectively.what is the volume of the cuboid?
Answer» Answer: 400m^3 Step-by-step EXPLANATION: vol=l×b×h vol=10×5×8

47.

the length breadth and height of a cuboid are 10m 5 m and 8 m respectively.what is the volume of the cuboid?

Answer»

Answer:

400m^3

Step-by-step EXPLANATION:

vol=l×b×h

vol=10×5×8

Discussion

48.	The sum of two numbers is 90 and the greater number exceeds the smaller by 15. Find the number
Answer» Greater NUMBER = 52.5 Smaller number = 37.5 Step-by-step explanation: We are given that the SUM of TWO numbers is 90 and the greater number exceeds the smaller by 15. Let the greater number be x and the smaller number be y. First condition states that the greater number exceeds the smaller by 15, that is; x = y + 15 --------------- [Equation 1] Second condition states that the sum of two numbers is 90, that is; x + y = 90 y + 15 + y = 90 {using equation 1} $2y$ + 15 = 90 $2y$ = 90 - 15 $2y = 75$ $y=\frac{75}{2} = 37.5$ Now, putting the value of y in equation 1, we get; x = y + 15 x = 37.5 + 15 = 52.5 SO, the greater number is x = 52.5 and smaller number is y = 37.5.

48.

The sum of two numbers is 90 and the greater number exceeds the smaller by 15. Find the number

Answer»

Greater NUMBER = 52.5

Smaller number = 37.5

Step-by-step explanation:

We are given that the SUM of TWO numbers is 90 and the greater number exceeds the smaller by 15.

Let the greater number be x and the smaller number be y.

First condition states that the greater number exceeds the smaller by 15, that is;

x = y + 15 --------------- [Equation 1]

Second condition states that the sum of two numbers is 90, that is;

x + y = 90

y + 15 + y = 90 {using equation 1}

$2y$ + 15 = 90

$2y$ = 90 - 15

$2y = 75$

$y=\frac{75}{2} = 37.5$

Now, putting the value of y in equation 1, we get;

x = y + 15

x = 37.5 + 15 = 52.5

SO, the greater number is x = 52.5 and smaller number is y = 37.5.

Discussion

49.	Solve the quadratic equation 2x2-6x+3
Answer» Answer: 2x²- 6x+3 2x²-(-3X)-(2X)+3=0 x(2x+3)+1(2x+3)=0 (x+1)(2x+3)=0 x+1=0 2x+3=0 x=-1 ,ALPHA =-1 2x=-3 x=-3/2,Beta=-3/2

49.

Solve the quadratic equation 2x2-6x+3

Answer»

Answer:

2x²- 6x+3

2x²-(-3X)-(2X)+3=0

x(2x+3)+1(2x+3)=0

(x+1)(2x+3)=0

x+1=0 2x+3=0

x=-1 ,ALPHA =-1 2x=-3

x=-3/2,Beta=-3/2

Discussion

50.	The place value of 7 in 23.73 is what?
Answer» ANSWER: place value of 7 is 0.7 i HOPE it is CORRECT answer

50.

The place value of 7 in 23.73 is what?

Answer»

ANSWER:

place value of 7 is 0.7

i HOPE it is CORRECT answer

Discussion

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