332354 + Interview Questions in Secondary School in Math

1.	Letf(x) = ab.sin(3x) + b/1 - a² cos(3x)where 0 < a < 1, then maximum f(x)
Answer» ANSWER: bhfhjfjdjjjhkjjderr

1.

Letf(x) = ab.sin(3x) + b/1 - a² cos(3x)where 0 < a < 1, then maximum f(x)

Answer»

ANSWER:

bhfhjfjdjjjhkjjderr

Discussion

2.	Is ,sin 2 theta = 2 sin theta cos theta..
Answer» HENCE proved plz MARK me as BRAINLIST and FOLLOW me

2.

Is ,sin 2 theta = 2 sin theta cos theta..

Answer»

HENCE proved

plz MARK me as BRAINLIST and FOLLOW me

Discussion

3.	if the vechile speed having 50km/hr completes its journey in 4 hours then how much of speed is required to complete the journey in 3 hours 30 min?
Answer» Answer: 70 KM PER HOUR SPEED does he REQUIRED

3.

if the vechile speed having 50km/hr completes its journey in 4 hours then how much of speed is required to complete the journey in 3 hours 30 min?

Answer»

Answer:

70 KM PER HOUR SPEED does he REQUIRED

Discussion

4.	Why is it here plz explain me
Answer» It is there to DENOTE IRREGULAR INTERVALS FRIEND (•‿•)

4.

Why is it here plz explain me

Answer»

It is there to DENOTE IRREGULAR INTERVALS FRIEND (•‿•)

Discussion

5.	Factorize (x-5)(2x-1)(2x+3)
Answer» ANSWER: It's ALREADY factorised. Step-by-step EXPLANATION: $Mark me brainliest and follow me.$

5.

Factorize (x-5)(2x-1)(2x+3)

Answer»

ANSWER:

It's ALREADY factorised.

Step-by-step EXPLANATION:

$Mark me brainliest and follow me.$

Discussion

6.	Urgent Factorise: 8x^3 -8x -3 Urgent
Answer» Answer:8(x+y) ( x² + y² - XY) Step-by-step explanation: 8x³ + √(64) y³ =8x³ + 8y³ =8(x³ + y³) =8(x+y) ( x² + y² - xy)

6.

Urgent Factorise: 8x^3 -8x -3 Urgent

Answer»

Answer:8(x+y) ( x² + y² - XY)

Step-by-step explanation:

8x³ + √(64) y³

=8x³ + 8y³

=8(x³ + y³)

=8(x+y) ( x² + y² - xy)

Discussion

7.	What is the value of 3 root 3 + root 3
Answer» 4√3 or 6.928 STEP by step explanation: 3√3 +√3 4√3 4*1.732 6.928

7.

What is the value of 3 root 3 + root 3

Answer»

4√3 or 6.928

STEP by step explanation:

3√3 +√3

4√3

4*1.732

6.928

Discussion

8.	How many ways can first and second place be awarded to 11 people? Select one: a. 90 b. 80 c. 100 d. 110
Answer» Answer: 1 PLACE will be 110 100 90 80

8.

How many ways can first and second place be awarded to 11 people? Select one: a. 90 b. 80 c. 100 d. 110

Answer»

Answer:

1 PLACE will be 110 100 90 80

Discussion

9.	If the distance between the points (2,-2) and (-1, x) is 5 one of the values of X is? a) 2 b)-1 c) 1 d)-2
Answer» ANSWER: -2....IS CORRECT ANSWER.....

9.

If the distance between the points (2,-2) and (-1, x) is 5 one of the values of X is? a) 2 b)-1 c) 1 d)-2

Answer»

ANSWER:

-2....IS CORRECT ANSWER.....

Discussion

10.	Write 6,09,58,407 in Indian system of numeration
Answer» ANSWER: it is in INDIAN SYSTEM of numeration 60,958,407 it is in INTERNATIONAL system

10.

Write 6,09,58,407 in Indian system of numeration

Answer»

ANSWER:

it is in INDIAN SYSTEM of numeration

60,958,407 it is in INTERNATIONAL system

Discussion

11.	Arun and Sandra were Friends.which is the connective word here?
Answer» ANSWER: and is the CONNECTIVE WORD here. Mark as brainliest☺

11.

Arun and Sandra were Friends.which is the connective word here?

Answer»

ANSWER:

and is the CONNECTIVE WORD here.

Mark as brainliest☺

Discussion

12.	A degree of the polynomial 4 by 5 x square - 7 by 5 x + 2 by 3 x cube + 6 is
Answer» the DEGREE of the POLYNOMIAL is 6 hope it will HELP U

12.

A degree of the polynomial 4 by 5 x square - 7 by 5 x + 2 by 3 x cube + 6 is

Answer»

the DEGREE of the POLYNOMIAL is 6

hope it will HELP U

Discussion

13.	Cos 30 sec 45 sin 30 sin 45
Answer» ANSWER: Step-by-step EXPLANATION: Cos30 SEC45 SIN30 sin45 =√3/2 ×√2×1/2×2/√2 =√3/2×1/√2×1/√2 =√3/2×1/2 =√3/4 Hence the result of the given solution is √3/4

13.

Cos 30 sec 45 sin 30 sin 45

Answer»

ANSWER:

Step-by-step EXPLANATION:

Cos30 SEC45 SIN30 sin45

=√3/2 ×√2×1/2×2/√2

=√3/2×1/√2×1/√2

=√3/2×1/2

=√3/4

Hence the result of the given solution is √3/4

Discussion

14.	The graph of striaght line y=7 will be *Parallel to y axisNone of thesepass through originParallel to x axis
Answer» ANSWER: PARALLEL to x-axis..... HOPE it HELPS you

14.

The graph of striaght line y=7 will be *Parallel to y axisNone of thesepass through originParallel to x axis

Answer»

ANSWER:

PARALLEL to x-axis.....

HOPE it HELPS you

Discussion

15.	Given that √3 is an irrational number, prove that √3-5 is also an irrational number
Answer» I will give you DETAILED solution first MARK me branliest it's my promise your well WISHER

Discussion

16.	Solve (sinA+sin B)=
Answer» Step-by-step EXPLANATION: PLZ MARK me as BRAINLIST

16.

Solve (sinA+sin B)=

Answer»

Step-by-step EXPLANATION:

PLZ MARK me as BRAINLIST

Discussion

17.	Maths 1 practice set 2.1 question 2
Answer» ANSWER: OOK THANKS for TELLING US

17.

Maths 1 practice set 2.1 question 2

Answer»

ANSWER:

OOK THANKS for TELLING US

Discussion

18.	Find the mean and mode of the following frequency distribution.Classed50-600-1060-7010-2030-4020-3040-50810frequency31573
Answer» 1. ANSWER: it's MODE is 3

Discussion

19.	Slove 3 question please
Answer» Step-by-step explanation: *ARMY* *pls* *download* Choeaedol app .. and VOTE 4 BTS .... pls ...do it FASSST** ...!!!!

19.

Slove 3 question please

Answer»

Step-by-step explanation:

ARMY pls download Choeaedol app ..

and VOTE 4 BTS ....

pls ...do it FASSST ...!!!!

Discussion

20.	The cost of a notebook is Rs5 less than twice cost of pen. A linear equation in two variables representing this statement is.A) x+2y=5.B) x-2y=5. C) x-2y+5=0. D) x= 2y-5. Choose the correct option
Answer» The ANSWER is option D) x=2y-5 Hope you LIKE my answer and plz MARK my answer as brainliest

20.

The cost of a notebook is Rs5 less than twice cost of pen. A linear equation in two variables representing this statement is.A) x+2y=5.B) x-2y=5. C) x-2y+5=0. D) x= 2y-5. Choose the correct option

Answer»

The ANSWER is option D) x=2y-5

Hope you LIKE my answer and plz MARK my answer as brainliest

Discussion

21.	In figure ABCD is a parallelogram and P and Q are points on the diagonal BD such that DP =BQ. show that. 1)APCQ is a parallelogram. 2) AP=CQ, AQ=CP . 3)ΔAPD =~ΔCQB. 4) ΔAQB =~ΔCPD
Answer» ANSWER: ∆APD=~∆CQB....IS CORRECT ANSWER

21.

In figure ABCD is a parallelogram and P and Q are points on the diagonal BD such that DP =BQ. show that. 1)APCQ is a parallelogram. 2) AP=CQ, AQ=CP . 3)ΔAPD =~ΔCQB. 4) ΔAQB =~ΔCPD

Answer»

ANSWER:

∆APD=~∆CQB....IS CORRECT ANSWER

Discussion

22.	Find the coefficient of x in x+7
Answer» Step-by-step EXPLANATION: COEFFICIENT of X = 1 .....

22.

Find the coefficient of x in x+7

Answer»

Step-by-step EXPLANATION:

COEFFICIENT of X = 1 .....

Discussion

23.	Look at the graph below .Each is the graph of y=p(x) is a polynomial .for each of the graph . find the number of zeroes.graph ke bare main mt bolna kyunki vo mujhe question main di hi nhianswer bta do bss
Answer» ANSWER: sorry bro PLEASE MARK me as branliest bro

23.

Look at the graph below .Each is the graph of y=p(x) is a polynomial .for each of the graph . find the number of zeroes.graph ke bare main mt bolna kyunki vo mujhe question main di hi nhianswer bta do bss

Answer»

ANSWER:

sorry bro PLEASE MARK me as branliest bro

Discussion

24.	X square + y square + z square by 4 + 2xy-yz-zx
Answer» ANSWER: this is your answer HAPPY TEACHERS DAY

24.

X square + y square + z square by 4 + 2xy-yz-zx

Answer»

ANSWER:

this is your answer

HAPPY TEACHERS DAY

Discussion

25.	Wr. the difference between the largest 4 digt no. and the smallest 6 digit no.
Answer» ANSWER: 100000 - 1000 ----------------- 0 9900 please MARK me as BRAINLIEST

25.

Wr. the difference between the largest 4 digt no. and the smallest 6 digit no.

Answer»

ANSWER:

100000

- 1000

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

0 9900

please MARK me as BRAINLIEST

Discussion

26.	Տ`Sbhhh!) tԿ2 13625\|\|18
Answer» Answer: your QUESTION is not FULL so I can't SOLVE it SORRY

26.

Տ`Sbhhh!) tԿ2 13625||18

Answer»

Answer:

your QUESTION is not FULL so I can't SOLVE it SORRY

Discussion

27.	Prove that 2 root 7 by 7 root 7 is an rational number
Answer» Step-by-step EXPLANATION: Hey there! 2√7 / 7√7 simplify the expression, 2/7 2/7 is a rational NUMBER as it can be expressed in the FORM p/Q, where p and q, where p≠0 So, 2√7 / 7√7 is a rational number HOPE it helps! *MARK* ME AS *BRAINLIEST... FOLLOW* ME...

27.

Prove that 2 root 7 by 7 root 7 is an rational number

Answer»

Step-by-step EXPLANATION:

Hey there!

2√7 / 7√7

simplify the expression,

2/7

2/7 is a rational NUMBER as it can be expressed in the FORM p/Q, where p and q, where p≠0

So, 2√7 / 7√7 is a rational number

HOPE it helps!

MARK ME AS BRAINLIEST...

FOLLOW ME...

Discussion

28.	State thales theorem?
Answer» $\huge \star \: \mathfrak{answer}$ In geometry, Thales's theorem states that if A, B, and C are DISTINCT points on a circle where the line AC is a diameter, then the angle ∠ABC is a right angle. Thales' theorem is a SPECIAL case of the inscribed angle theorem, and is mentioned and proved as part of the 31st proposition, in the third book of Euclid's Elements. It is generally attributed to Thales of Miletus, who is said to have offered an ox (probably to the god Apollo) as a sacrifice of THANKSGIVING for the discovery, but sometimes it is attributed to Pythagoras. $\text{[math]}$ Mark me as brainliest please

28.

State thales theorem?

Answer»

$\huge \star \: \mathfrak{answer}$

In geometry, Thales's theorem states that if A, B, and C are DISTINCT points on a circle where the line AC is a diameter,

then the angle ∠ABC is a right angle.

Thales' theorem is a SPECIAL case of the inscribed angle theorem, and is mentioned and proved as part of the 31st proposition, in the third book of Euclid's Elements.

It is generally attributed to Thales of Miletus, who is said to have offered an ox (probably to the god Apollo) as a sacrifice of THANKSGIVING for the discovery, but sometimes it is attributed to Pythagoras.

$\text{[math]}$ Mark me as brainliest please

Discussion

29.	Is:2. The solution of equation2x-3 2x+3 = 2/3(b) 2/15(d) 5/7(a) 15/2(c) 7/5
Answer» ANSWER: (2X-3)(2x+3)=(2x)^2-(3)^2 4x^2-9=0 x^2=9/4 root on both sides x=3/2

29.

Is:2. The solution of equation2x-3 2x+3 = 2/3(b) 2/15(d) 5/7(a) 15/2(c) 7/5

Answer»

ANSWER:

(2X-3)(2x+3)=(2x)^2-(3)^2

4x^2-9=0

x^2=9/4

root on both sides

x=3/2

Discussion

30.	Answer correctly to be brainliest #BTS
Answer» Answer: 86 Step-by-step explanation: angle AOC + angle C o b + angle b o d is equal to 2 74 now angle AOC + angle C + Angle B O D + angle AOB is equal to 360 degree 274+ angle AOD=360 ANGLE AOD=86 hope it helps please Markaz brainliest

30.

Answer correctly to be brainliest #BTS

Answer»

Answer:

86

Step-by-step explanation:

angle AOC + angle C o b + angle b o d is equal to 2 74

now angle AOC + angle C + Angle B O D + angle AOB is equal to 360 degree

274+ angle AOD=360

ANGLE AOD=86

hope it helps please Markaz brainliest

Discussion

31.	For each day of the week, make an up count from me. If you make no mistake, you will get thirty four. Who am I?For each day of the week, make an up count from me. If you make no mistake, you will get thirty four. Who am I?
Answer» ANSWER: the answer is 11 Step-by-step EXPLANATION: i THINK so i am not SURE

31.

For each day of the week, make an up count from me. If you make no mistake, you will get thirty four. Who am I?For each day of the week, make an up count from me. If you make no mistake, you will get thirty four. Who am I?

Answer»

ANSWER:

the answer is 11

Step-by-step EXPLANATION:

i THINK so i am not SURE

Discussion

32.	If x+(1/x)=3 find the vaule of (i)x-(1/x)
Answer» x+1/x=3 x=3-1/x x^2=2 x=root 2 substitute the VALUES for x-1/x root 2- 1/root 2 (root4-1)/root2 1/root2 root2/2 (by RATIONALISING DENOMINATOR)

32.

If x+(1/x)=3 find the vaule of (i)x-(1/x)

Answer»

x+1/x=3

x=3-1/x

x^2=2

x=root 2

substitute the VALUES for x-1/x

root 2- 1/root 2

(root4-1)/root2

1/root2

root2/2 (by RATIONALISING DENOMINATOR)

Discussion

33.	12 of them are negative and 6 are positiveHow to do.
Answer» ANSWER: I am SORRY, I am not ABLE to understanding it Step-by-step explanation: plz re EDIT the question

33.

12 of them are negative and 6 are positiveHow to do.

Answer»

ANSWER:

I am SORRY, I am not ABLE to understanding it

Step-by-step explanation:

plz re EDIT the question

Discussion

34.	(x²-2x-15)-(-13+17x-7x²)
Answer» ANSWER: ▶(x²-2x-15) -(-13+17x-7x²) ▶x²-2x-15+13-17x+7x² ▶8x²-19x-12 hope it's help☺☺gd EVENING

34.

(x²-2x-15)-(-13+17x-7x²)

Answer»

ANSWER:

▶(x²-2x-15) -(-13+17x-7x²)

▶x²-2x-15+13-17x+7x²

▶8x²-19x-12

hope it's help☺☺gd EVENING

Discussion

35.	Example 29 It takes 12 hours to fill a swimming pool using two pipes. If the pipe of largerdiameter is used for 4 hours and the pipe of smaller diameter for 9 hours, only half thepool can be filled. How long would it take for each pipe to fill the pool separately?by eleminitation method
Answer» Answer: HAPPY LEARNING ! Step-by-step explanation: Let there are two pipes A and B and DIAMETER of A is larger than B. Now suppose that Pipe A take X HOURS and Pipe B takes y hours to fill the pool separately . In 1 hour pipe A can fill the pool = x 1 In 1 hour pipe B can fill the pool= y 1 If both pipe are together then they take 12 hour to fill the pool. If the are togther then in 1 hour they fill the pool. x 1 + y 1 = 12 1 −−−−(1) Now In 4 hour pipe A can fill the pool is= x 4 In 9 hour pipe B can fill the pool is= y 9 than they fill half of the pool,so x 4 + y 9 = 2 1 −−−−−(2) Now Let x 1 =P & y 1 =Q and puuting in equation 1 &2, than P+Q= 12 1 ⇒12P+12Q=1−−−−(3) And 4P+9Q = 2 1 ⇒8P+18Q=1−−−−−(4) Now solving equation 3 & 4 Equation (3) multiplying by 2 and (4) multiplying by 3 and substract. ⇒−30Q=−1 ⇒Q= 30 1 now put value of Q in equation 3 We get P= 20 1 So we found P= 20 1 & Q= 30 1 So x=20 and y=30 Hence the A pipe would take 20 hours and the pipe B would take 30 hours separately .

35.

Example 29 It takes 12 hours to fill a swimming pool using two pipes. If the pipe of largerdiameter is used for 4 hours and the pipe of smaller diameter for 9 hours, only half thepool can be filled. How long would it take for each pipe to fill the pool separately?by eleminitation method

Answer»

Answer:

HAPPY LEARNING !

Step-by-step explanation:

Let there are two pipes A and B and DIAMETER of A is larger than B.

Now suppose that

Pipe A take X HOURS and Pipe B takes y hours to fill the pool separately .

In 1 hour pipe A can fill the pool =

x

1

In 1 hour pipe B can fill the pool=

y

1

If both pipe are together then they take 12 hour to fill the pool.

If the are togther then in 1 hour they fill the pool.

x

1

+

y

1

=

12

1

−−−−(1)

Now

In 4 hour pipe A can fill the pool is=

x

4

In 9 hour pipe B can fill the pool is=

y

9

than they fill half of the pool,so

x

4

+

y

9

=

2

1

−−−−−(2)

Now Let

x

1

=P &

y

1

=Q and puuting in equation 1 &2, than

P+Q=

12

1

⇒12P+12Q=1−−−−(3)

And

4P+9Q =

2

1

⇒8P+18Q=1−−−−−(4)

Now solving equation 3 & 4

Equation (3) multiplying by 2 and (4) multiplying by 3 and substract.

⇒−30Q=−1

⇒Q=

30

1

now put value of Q in equation 3

We get P=

20

1

So we found

P=

20

1

& Q=

30

1

So x=20 and y=30

Hence the A pipe would take 20 hours and the pipe B would take 30 hours separately .

Discussion

36.	The area of a trapezium is 1586 sq.cm. The distance between it's parallel sides is 26cm if one of the parallel sides is 84cm then, find the other sides
Answer» SOLUTION : $\underline{\bf{Given\::}}}}$ Area of TRAPEZIUM = 1586 cm² Distance between it's PARALLEL sides = 26 cm One parallel side = 84 cm $\underline{\bf{To\:find\::}}}}$ The other side of trapezium. $\underline{\bf{Explanation\::}}}}$ Let the other side of trapezium be r cm We know that formula of the area of trapezium : $\boxed{\bf{Area\:of\:trapezium=\frac{1}{2} \times (sum\:of\:parallel\:side's)\times height}}}$ A/q $\longrightarrow\sf{1586=\dfrac{1}{2} \times (84 + r) \times 26 }}\\\\\\\longrightarrow\sf{1586\times 2=2184+26r}\\\\\longrightarrow\sf{3172=2184+26r}\\\\\longrightarrow\sf{26r=3172-2184}\\\\\longrightarrow\sf{26r=988}\\\\\longrightarrow\sf{r=\cancel{988/26}}\\\\\longrightarrow\bf{r=<klux>38</klux>\:cm}}$ Thus; The other side of trap. will 38 cm .

36.

The area of a trapezium is 1586 sq.cm. The distance between it's parallel sides is 26cm if one of the parallel sides is 84cm then, find the other sides

Answer»

SOLUTION :

$\underline{\bf{Given\::}}}}$

Area of TRAPEZIUM = 1586 cm²
Distance between it's PARALLEL sides = 26 cm
One parallel side = 84 cm

$\underline{\bf{To\:find\::}}}}$

The other side of trapezium.

$\underline{\bf{Explanation\::}}}}$

Let the other side of trapezium be r cm

We know that formula of the area of trapezium :

$\boxed{\bf{Area\:of\:trapezium=\frac{1}{2} \times (sum\:of\:parallel\:side's)\times height}}}$

A/q

$\longrightarrow\sf{1586=\dfrac{1}{2} \times (84 + r) \times 26 }}\\\\\\\longrightarrow\sf{1586\times 2=2184+26r}\\\\\longrightarrow\sf{3172=2184+26r}\\\\\longrightarrow\sf{26r=3172-2184}\\\\\longrightarrow\sf{26r=988}\\\\\longrightarrow\sf{r=\cancel{988/26}}\\\\\longrightarrow\bf{r=<klux>38</klux>\:cm}}$

Thus;

The other side of trap. will 38 cm .

Discussion

37.	Find a rational number between 2/3 and 3/4 convert the given rational numbers into decimal form
Answer» ANSWER: here mate here is the answer for the QUESTION Tag as BRAINLIEST TQ for asking.

37.

Find a rational number between 2/3 and 3/4 convert the given rational numbers into decimal form

Answer»

ANSWER:

here mate here is the answer for the QUESTION

Tag as BRAINLIEST

TQ for asking.

Discussion

38.	A shopkeeper bought one dozen eggs for Rs. 60 and sold each egg for Rs. 6.Find his "%" profit or loss in.
Answer» ANSWER: 20% PROFIT is the answer

38.

A shopkeeper bought one dozen eggs for Rs. 60 and sold each egg for Rs. 6.Find his "%" profit or loss in.

Answer»

ANSWER:

20% PROFIT is the answer

Discussion

39.	-5 by 4 in rational number on number line
Answer» Answer: here mate here is the answer for the QUESTION Tag as BRAINLIEST TQ for asking.

39.

-5 by 4 in rational number on number line

Answer»

Answer:

here mate here is the answer for the QUESTION

Tag as BRAINLIEST

TQ for asking.

Discussion

40.	If tan A =3/4 , value of tan²A and cot²A=
Answer» ANSWER: answer of tan^2A =9/16 cot^2A=16/9 __________________________________________________________ pls MARK me as brainlest hope this will HELP you

40.

If tan A =3/4 , value of tan²A and cot²A=

Answer»

ANSWER:

answer of tan^2A =9/16

cot^2A=16/9

__________________________________________________________

pls MARK me as brainlest

hope this will HELP you

Discussion

41.	Write your question here (Keep it simple and clear to get the best answer)two different roots if b²-4ac _ 0 no any real roots if b²-4ac _0 two equal roots if b²-4ac _0
Answer» ANSWER: two DIFFERENT roots when b^2 - 4ac > 0 no real roots when b^2 - 4ac < 0 two EQUAL roots when b^2 - 4ac = 0

41.

Write your question here (Keep it simple and clear to get the best answer)two different roots if b²-4ac _ 0 no any real roots if b²-4ac _0 two equal roots if b²-4ac _0

Answer»

ANSWER:

two DIFFERENT roots when b^2 - 4ac > 0

no real roots when b^2 - 4ac < 0

two EQUAL roots when b^2 - 4ac = 0

Discussion

42.	Factorise -4(x- 2y) + 8(x- 2y)
Answer» ANSWER: -4(X- 2Y) + 8(x- 2y) =-4x+2y+8x-16y =4x-14y =2(2x-7y) ✴hope it's help✴

42.

Factorise -4(x- 2y) + 8(x- 2y)

Answer»

ANSWER:

-4(X- 2Y) + 8(x- 2y)

=-4x+2y+8x-16y

=4x-14y

=2(2x-7y)

✴hope it's help✴

Discussion

43.	0.0003 67 multiplied 10 to the power 4 in usual form is
Answer» Answer: 0.00000302 Step-by-step explanation: if the DECIMAL POINT moves to the NUMBER is small subtract the number of places hiven

43.

0.0003 67 multiplied 10 to the power 4 in usual form is

Answer»

Answer:

0.00000302

Step-by-step explanation:

if the DECIMAL POINT moves to the NUMBER is small subtract the number of places hiven

Discussion

44.	If A=(1,2,3,4) and B=(3,4,5,6,7) find AUB,ANB,A-B
Answer» ANSWER: LET try Step-by-step EXPLANATION: AUB=(1,2,3,4,3,4,5,6,7) ANB=(3,4) A-B=(1,2)

44.

If A=(1,2,3,4) and B=(3,4,5,6,7) find AUB,ANB,A-B

Answer»

ANSWER:

LET try

Step-by-step EXPLANATION:

AUB=(1,2,3,4,3,4,5,6,7)

ANB=(3,4)

A-B=(1,2)

Discussion

45.	Find three different solutions of the equation 2x+3y=6.
Answer» ANSWER: x=1, y= 4/3 x=0 ,y= 2 x= -1,y= 8/3 mark me as brainliest and FOLLOW me if U can

45.

Find three different solutions of the equation 2x+3y=6.

Answer»

ANSWER:

x=1, y= 4/3

x=0 ,y= 2

x= -1,y= 8/3

mark me as brainliest and FOLLOW me if U can

Discussion

46.	A, B, C can do a piece of work in 10, 12, 15 days respectively. They started working together but C left after working for 3 days, and B left 4 days before the completion of the work. In how many days will A finish the work?
Answer» Answer: 30 days Step-by-step explanation: A+B+C = 10+12+15 respectively 10+12+15=37 C left working after 3 days and B left working after 4 days.. 37-3-4=30 A will COMPLETE the work in 30 days.. *Hope* it *HELPS* *you.. MARK* as a *brainlist* to my *answer*.....

46.

A, B, C can do a piece of work in 10, 12, 15 days respectively. They started working together but C left after working for 3 days, and B left 4 days before the completion of the work. In how many days will A finish the work?

Answer»

Answer:

30 days

Step-by-step explanation:

A+B+C = 10+12+15 respectively

10+12+15=37

C left working after 3 days and B left working after 4 days..

37-3-4=30

A will COMPLETE the work in 30 days..

Hope it HELPS you..

MARK as a brainlist to my answer.....

Discussion

47.	What is the answer of this equation 1=6(1-p)
Answer» Step-by-step explanation: 1=6-6p p=6-6 p=0 Mai JYADA maths NHI bnati toh I think YEH hoga ANSWER yah PHIR .. 1=6-6p p=6-6-1 p=6-7 p=-1

47.

What is the answer of this equation 1=6(1-p)

Answer»

Step-by-step explanation:

1=6-6p

p=6-6

p=0

Mai JYADA maths NHI bnati toh I think YEH hoga ANSWER yah PHIR ..

1=6-6p

p=6-6-1

p=6-7

p=-1

Discussion

48.	Find the product by suitable properties (-20)(-2)(-5)*7
Answer» Answer: -1400 Step by Step Explanation: The basic PROCEDURE to multiply INTEGERS is to open the brackets along with their signs. → -20× -2 × -5 × 7 = 40 × -35 = -1400

48.

Find the product by suitable properties (-20)(-2)(-5)*7

Answer»

Answer:

-1400

Step by Step Explanation:

The basic PROCEDURE to multiply INTEGERS is to open the brackets along with their signs.

→ -20× -2 × -5 × 7

= 40 × -35

= -1400

Discussion

49.	Represent 8 by 5 and minus 6 by 7 on the number line
Answer» ANSWER: In PICTURE............... *ujjwalrajput............*

49.

Represent 8 by 5 and minus 6 by 7 on the number line

Answer»

ANSWER:

In PICTURE...............

ujjwalrajput............

Discussion

50.	If ‘’ is an acute angle and Sin = Cos , find the value of ‘’ and hence find the value of 3 2 + 2 2 - 1
Answer» Answer: FIND the LCM of the FOLLOWING NUMBERS by listing multiples 12,16. 15,20. 7,8. 3,4and6. 5,7and 10 Find the PCM of the following by prime factorisation method :-24,60. 10,12,18. 12,48,60. 18,20,30,. 9,15,18,20 Find the PCM of the following by division method 18,36,60,7220,25,30,5048,56,105,2258,12,20,30,809,12,18,24,2722,54,108,135,198Fi

50.

If ‘’ is an acute angle and Sin = Cos , find the value of ‘’ and hence find the value of 3 2 + 2 2 - 1

Answer»

Answer:

FIND the LCM of the FOLLOWING NUMBERS by listing multiples 12,16. 15,20. 7,8. 3,4and6. 5,7and 10 Find the PCM of the following by prime factorisation method :-24,60. 10,12,18. 12,48,60. 18,20,30,. 9,15,18,20 Find the PCM of the following by division method 18,36,60,7220,25,30,5048,56,105,2258,12,20,30,809,12,18,24,2722,54,108,135,198Fi

Discussion

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