332354 + Interview Questions in Secondary School in Math

1.	Find the mean of the given data 10, 12, 14, 4
Answer» Answer: Please FOLLOW me my follower are very low please Step-by-step EXPLANATION: then I find the mean of the GIVENDATA OK please please And ALSO please mark me as a branlist please

1.

Find the mean of the given data 10, 12, 14, 4

Answer»

Answer:

Please FOLLOW me my follower are very low please

Step-by-step EXPLANATION:

then I find the mean of the GIVENDATA OK please please

And ALSO please mark me as a branlist please

Discussion

2.	If A-B={3,4,5}, B-A={1,8,9} and A intersection B={6,7},then AUB is...
Answer» Step-by-step EXPLANATION: AUB= 1,3,4,5,6,7,8,9

2.

If A-B={3,4,5}, B-A={1,8,9} and A intersection B={6,7},then AUB is...

Answer»

Step-by-step EXPLANATION:

AUB= 1,3,4,5,6,7,8,9

Discussion

3.	Rationalize the denominator: 23√7
Answer» ANSWER: $==: \frac{2}{3\sqrt{7} } \\==: \frac{2}{3\sqrt{7} } * \frac{\sqrt{7} }{\sqrt{7} } \\\\==: \frac{2\sqrt{7} }{21}$ PLS MARK my answer as brainlist Pls FOLLOW me

3.

Rationalize the denominator: 23√7

Answer»

ANSWER:

$==: \frac{2}{3\sqrt{7} } \\==: \frac{2}{3\sqrt{7} } * \frac{\sqrt{7} }{\sqrt{7} } \\\\==: \frac{2\sqrt{7} }{21}$

PLS MARK my answer as brainlist

Pls FOLLOW me

Discussion

4.	Real part of the complex number i (2 – i) is
Answer» i(2-i) = 2I-i^2 = 2i-(-1) [i^2=-1] = 1+2i real part=1

4.

Real part of the complex number i (2 – i) is

Answer»

i(2-i)

= 2I-i^2

= 2i-(-1) [i^2=-1]

= 1+2i

real part=1

Discussion

5.	Divide : 35p by p answet
Answer» ANSWER: 35p Step-by-step explanation: 35 is ANSWERED this is my FIRST answer for BRAINLY

5.

Divide : 35p by p answet

Answer»

ANSWER:

35p

Step-by-step explanation:

35 is ANSWERED

this is my FIRST answer for BRAINLY

Discussion

6.	6/7 by _19/18 please solve this questions
Answer» ANSWER: 6/7 is EQUAL to 7/6 the answer is 100200300400500600700800900. Step-by-step EXPLANATION: hihkfvkguvjgjvhchxcufufufufjvjfjv

6.

6/7 by _19/18 please solve this questions

Answer»

ANSWER:

6/7 is EQUAL to 7/6 the answer is 100200300400500600700800900.

Step-by-step EXPLANATION:

hihkfvkguvjgjvhchxcufufufufjvjfjv

Discussion

7.	The HCF and LCM of two numbers are 432 and 80784 respectively.If one of the numbers is 7344 find out the other number
Answer» 2087762937338363837833-916293-383-39-383-

Discussion

8.	1/5kg = how much gram
Answer» ʜᴏʟᴀ♥ 1/5 KG = 200 G ʜᴏᴘᴇ ᴛʜɪs ʜᴇʟᴘs◉‿◉

8.

1/5kg = how much gram

Answer»

ʜᴏʟᴀ♥

1/5 KG = 200 G

ʜᴏᴘᴇ ᴛʜɪs ʜᴇʟᴘs◉‿◉

Discussion

9.	Answer it with explanation
Answer» Answer: $\huge\pink{AnSwer}$ B) 2Na + 2H₂O ---------- 2NaOH + H₂ Explanation :- Reason: Here SODIUM (NA) displaces to FORM sodium HYDROXIDE.

9.

Answer it with explanation

Answer»

Answer:

$\huge\pink{AnSwer}$

B) 2Na + 2H₂O ---------- 2NaOH + H₂

Explanation :-

Reason: Here SODIUM (NA) displaces to FORM sodium HYDROXIDE.

Discussion

10.	1. There are _______ diagonals in a regular hexagon.2. ____________ is a three sided regular polygon3. ________ is a four sided regular polygon.4. The measure of each external angle of a square is ___________.5. The measure of each external angle of a rectangle is_______________.6. the measure of each external angle of a regular hexagon is ___________.7. _________is a 8 sided regular polygon.
Answer» 1. There are 6 diagonals in a REGULAR hexagon. 2. Traingle* is a three sided regular polygon.* 3. QUADRILATERAL* is a four sided regular polygon.* 4. The measure of each external angle of a square is 90°* .* 5. The measure of each external angle of a rectangle is 90°* .* 6. the measure of each external angle of a regular hexagon is 60 °* .* 7. octagon* is a 8 sided regular polygon*. Hope helps....

10.

1. There are _ diagonals in a regular hexagon.2. is a three sided regular polygon3. is a four sided regular polygon.4. The measure of each external angle of a square is _.5. The measure of each external angle of a rectangle is_____.6. the measure of each external angle of a regular hexagon is _.7. _____is a 8 sided regular polygon.

Answer»

1. There are 6 diagonals in a REGULAR hexagon.

2. Traingle is a three sided regular polygon.

3. QUADRILATERAL is a four sided regular polygon.

4. The measure of each external angle of a square is 90° .

5. The measure of each external angle of a rectangle is 90° .

6. the measure of each external angle of a regular hexagon is 60 ° .

7. octagon is a 8 sided regular polygon.

Hope helps....

Discussion

11.	Find the sum of the series 3+ 9+11+ .......... to 10 times, I need clear method
Answer» Answer: 23O..........................

11.

Find the sum of the series 3+ 9+11+ .......... to 10 times, I need clear method

Answer»

Answer:

23O..........................

Discussion

12.	Choose the even number from thegiven pair: 34 and 99.1 342 99
Answer» 34 is a EVEN number Hope it's HELP to U ✌✌

12.

Choose the even number from thegiven pair: 34 and 99.1 342 99

Answer»

34 is a EVEN number

Hope it's HELP to U ✌✌

Discussion

13.	If D, E and F are midpoint of AB, AC and BC, findperimeter of ∆DEF.
Answer» D = 2.5 cm E = 2 cm F = 3 cm STEP by step explanation AB =5 cm BC = 6 cm AC =4 cm D = ½ AB D = ½ × 5 D = 2.5 cm E = ½ AC E = ½ × 4 E = 2 cm F = ½ × BC F = ½ × 6 F = 3 cm perimeter of TRIANGLE DEF = a + b + C = 2.5 + 2 +3 = 7.5 cm

13.

If D, E and F are midpoint of AB, AC and BC, findperimeter of ∆DEF.

Answer»

D = 2.5 cm

E = 2 cm

F = 3 cm

STEP by step explanation

AB =5 cm

BC = 6 cm

AC =4 cm

D = ½ AB

D = ½ × 5

D = 2.5 cm

E = ½ AC

E = ½ × 4

E = 2 cm

F = ½ × BC

F = ½ × 6

F = 3 cm

perimeter of TRIANGLE DEF = a + b + C

= 2.5 + 2 +3

= 7.5 cm

Discussion

14.	(Solve (DP-5DD' + 4D)Z= lin(4x+y)
Answer» Step-by-step EXPLANATION: ododoeo000000000303030039383i3iriririirkdjdjkdkdkdodo

14.

(Solve (DP-5DD' + 4D)Z= lin(4x+y)

Answer»

Step-by-step EXPLANATION:

ododoeo000000000303030039383i3iriririirkdjdjkdkdkdodo

Discussion

15.	Section - Ax4=4)1. Choose the correct answer from the given alternatives.a)Ifx-coordinate of a point is zero, then it always lies on(i) quadrant I (ii) quadrant II (iii) x-axis (iv) y-axisb) If the area of an equilateral triangle is 9 v3 cm”, then its perimet(i) 10 cm (ii) 18 cm(iii) 21 cm (iv) 24 cmThe value of p(x) = x² - 7x + 12 at x = 3 is(i) 42(ii) 8(iii) (iv)-6d) The point of the form (a. a Jalways lies on the line
Answer» ANSWER: OK I will GIVE you the CORRECT answer...

15.

Section - Ax4=4)1. Choose the correct answer from the given alternatives.a)Ifx-coordinate of a point is zero, then it always lies on(i) quadrant I (ii) quadrant II (iii) x-axis (iv) y-axisb) If the area of an equilateral triangle is 9 v3 cm”, then its perimet(i) 10 cm (ii) 18 cm(iii) 21 cm (iv) 24 cmThe value of p(x) = x² - 7x + 12 at x = 3 is(i) 42(ii) 8(iii) (iv)-6d) The point of the form (a. a Jalways lies on the line

Answer»

ANSWER:

OK I will GIVE you the CORRECT answer...

Discussion

16.	A×(b×c)=(a×b)×c is associative under addition true or false
Answer» (i) False on number line, addition and subtraction of integers can be represented. (II) False, (a+b)+c=a+(b+c) hence, the addition of integers is ASSOCIATIVE (iii) False, The identify of integers under addition is zero, SW. (iv) False, The product of even number of negative INTEGER is positive.

16.

A×(b×c)=(a×b)×c is associative under addition true or false

Answer»

(i) False on number line, addition and subtraction of integers can be represented.

(II) False, (a+b)+c=a+(b+c)

hence, the addition of integers is ASSOCIATIVE

(iii) False, The identify of integers under addition is zero, SW.

(iv) False, The product of even number of negative INTEGER is positive.

Discussion

17.	Simplity2x + 3y -7 +6x+4y
Answer» Answer: 8x+7y-7 Step-by-step explanation: 2x+3y-7+6x+4y 8x+3y-7+4y (2x+6x=8x) = 8x+7y-7 ANS (4y+3y=7y) HOPE IT HELPS YOU

17.

Simplity2x + 3y -7 +6x+4y

Answer»

Answer:

8x+7y-7

Step-by-step explanation:

2x+3y-7+6x+4y

8x+3y-7+4y (2x+6x=8x)

= 8x+7y-7 ANS (4y+3y=7y)

HOPE IT HELPS YOU

Discussion

18.	The sum of the rational numbers – 8/19 and -4/57 isexplain please
Answer» Answer: -28/57 Step-by-step explanation: (-8/19)+(-4/57) 1.take LCM of denominator (-83/193)+(-4/57) (-24/57)+(-4/57) 2.Now add numerator -24-4/57 =-28/57

18.

The sum of the rational numbers – 8/19 and -4/57 isexplain please

Answer»

Answer:

-28/57

Step-by-step explanation:

(-8/19)+(-4/57)

1.take LCM of denominator

(-8*3/19*3)+(-4/57)

(-24/57)+(-4/57)

2.Now add numerator

-24-4/57

=-28/57

Discussion

19.	two right circular cone of equal curved surface area has land heights in the ratio of 3 is to 5 find the ratio of third radii
Answer» Step-by-step explanation: 5: 3 is the CORRECT ANSWER .... Hope it helps u ....

19.

two right circular cone of equal curved surface area has land heights in the ratio of 3 is to 5 find the ratio of third radii

Answer»

Step-by-step explanation:

5: 3 is the CORRECT ANSWER ....

Hope it helps u ....

Discussion

20.	Factorize : -16z + 32
Answer» FACTOR 16 out of -16Z +32 -16(z-2)

20.

Factorize : -16z + 32

Answer»

FACTOR 16 out of -16Z +32

-16(z-2)

Discussion

21.	.A hydraulic jump occurs in achannel *
Answer» Answer: A hydraulic JUMP is a phenomenon in the SCIENCE of hydraulics which is frequently OBSERVED in open CHANNEL flow such as rivers and spillways. When liquid at high velocity discharges into a zone of LOWER velocity, a rather abrupt rise occurs in the liquid surface.

21.

.A hydraulic jump occurs in achannel *

Answer»

Answer:

A hydraulic JUMP is a phenomenon in the SCIENCE of hydraulics which is frequently OBSERVED in open CHANNEL flow such as rivers and spillways. When liquid at high velocity discharges into a zone of LOWER velocity, a rather abrupt rise occurs in the liquid surface.

Discussion

22.	For the fig. if o is the centreof the circle than measure of the x
Answer» ANSWER: FIG??????...........

22.

For the fig. if o is the centreof the circle than measure of the x

Answer»

ANSWER:

FIG??????...........

Discussion

23.	161 Every assesse is a person and
Answer» Answer: Every representative assessee, as REGARDS the income in respect of which he is a representative assessee, SHALL be subject to the same duties, responsibilities and liabilities as if the income were income received by or accruing to or in FAVOUR of him beneficially, and shall be LIABLE to assessment in his own name ...

23.

161 Every assesse is a person and

Answer»

Answer:

Every representative assessee, as REGARDS the income in respect of which he is a representative assessee, SHALL be subject to the same duties, responsibilities and liabilities as if the income were income received by or accruing to or in FAVOUR of him beneficially, and shall be LIABLE to assessment in his own name ...

Discussion

24.	Prove that : Cos 20° + Cos 100° + Cos 140º = 0
Answer» Step-by-step EXPLANATION: cos20∘+cos100∘+cos140∘ =(cos20∘+cos140∘)+COS(90∘+10∘) =2cos80∘cos60∘−sin10∘=cos80∘−sin10∘ =sin10∘−sin10∘=0

24.

Prove that : Cos 20° + Cos 100° + Cos 140º = 0

Answer»

Step-by-step EXPLANATION:

cos20∘+cos100∘+cos140∘

=(cos20∘+cos140∘)+COS(90∘+10∘)

=2cos80∘cos60∘−sin10∘=cos80∘−sin10∘

=sin10∘−sin10∘=0

Discussion

25.	Root 6 upon root 3 - root 2
Answer» ANSWER: 0 Step-by-step EXPLANATION: GIVEN: $\frac{ \sqrt{6} }{ \sqrt{3} } - \sqrt{2}$ $= \frac{ \sqrt{3} \times \sqrt{2}} { \sqrt {3 } } - \sqrt{2}$ $= \sqrt{2} - \sqrt{2}$ $= 0$ HENCE, your answer is 0. *MARK* ME AS *BRAINLIEST* ;)

25.

Root 6 upon root 3 - root 2

Answer»

ANSWER:

0

Step-by-step EXPLANATION:

GIVEN:

$\frac{ \sqrt{6} }{ \sqrt{3} } - \sqrt{2}$

$= \frac{ \sqrt{3} \times \sqrt{2}} { \sqrt {3 } } - \sqrt{2}$

$= \sqrt{2} - \sqrt{2}$

$= 0$

HENCE, your answer is 0.

MARK ME AS BRAINLIEST ;)

Discussion

26.	6x²+5x-6 ka gudunsadh kitjiye
Answer» Answer: 12345679075314664655

26.

6x²+5x-6 ka gudunsadh kitjiye

Answer»

Answer:

12345679075314664655

Discussion

27.	The nth term of a geometric series is tn and the common ratio is r. where r>0 Given that t1 = 1. (a) Write down an expression in terms of r and n for tn.Given also that tn+t(n+1)=t(n+2). (b) Show that r=1+√5/2. (c) Find the exact value of t4 giving your answer in the form of f+g√h, where f, g and h are integers.
Answer» ANSWER: bhonpiji0yjpijoi8rfggjkpo9jtf5g7

27.

The nth term of a geometric series is tn and the common ratio is r. where r>0 Given that t1 = 1. (a) Write down an expression in terms of r and n for tn.Given also that tn+t(n+1)=t(n+2). (b) Show that r=1+√5/2. (c) Find the exact value of t4 giving your answer in the form of f+g√h, where f, g and h are integers.

Answer»

ANSWER:

bhonpiji0yjpijoi8rfggjkpo9jtf5g7

Discussion

28.	Construct a quadilateral ABCD whereAB=5cm, L ABC = 75°, AC=6cm, LA=90°CA =5cm
Answer» ANSWER: I don't KNOW the answer to this sorryyyyyyyyyyyyyyyyyyyy

28.

Construct a quadilateral ABCD whereAB=5cm, L ABC = 75°, AC=6cm, LA=90°CA =5cm

Answer»

ANSWER:

I don't KNOW the answer to this sorryyyyyyyyyyyyyyyyyyyy

Discussion

29.	Find the sum of all three digit numbers which leaves remainder 1 when divided by 3
Answer» ans 334 explain 334 ÷ 3 = 1

29.

Find the sum of all three digit numbers which leaves remainder 1 when divided by 3

Answer»

ans

334

explain

334 ÷ 3 = 1

Discussion

30.	If A={11,12,13,15,16,19,20} Then(i)15-A(ii)18-A
Answer» ANSWER: 17 is *answer* *but* *this* *NUMBER* is *not* *there*

30.

If A={11,12,13,15,16,19,20} Then(i)15-A(ii)18-A

Answer»

ANSWER:

17 is answer but this NUMBER is not there

Discussion

31.	The area of a trapezium of height 8m is 208 m.sq. sum of its parallel sides is
Answer» Given: Area of trapezium= 248 m² Height (h)= 8 m Let the one parallel SIDE be= x m Other parallel side =( x-4) m Area of trapezium = 1/2 ( sum of parallel SIDES) × height 248 = 1/2 ( X+ X- 4)× 8 248 = (2x - 4) × 4 248/4 = 2x-4 62 = 2x-4 62+4= 2x 66= 2x X= 66/2 X= 33 One parallel side (X)= 33 m Other parallel side(x-4)= 33-4= 29 m =========================================

31.

The area of a trapezium of height 8m is 208 m.sq. sum of its parallel sides is

Answer»

Given:

Area of trapezium= 248 m²

Height (h)= 8 m

Let the one parallel SIDE be= x m

Other parallel side =( x-4) m

Area of trapezium = 1/2 ( sum of parallel SIDES) × height

248 = 1/2 ( X+ X- 4)× 8

248 = (2x - 4) × 4

248/4 = 2x-4

62 = 2x-4

62+4= 2x

66= 2x

X= 66/2

X= 33

One parallel side (X)= 33 m

Other parallel side(x-4)= 33-4= 29 m

=========================================

Discussion

32.	Fill in the blank 3/6=?/30
Answer» Step-by-step explanation: 3/6=(3×5)/(6×5)=15/30 This is the CORRECT ANSWER.

32.

Fill in the blank 3/6=?/30

Answer»

Step-by-step explanation:

3/6=(3×5)/(6×5)=15/30

This is the CORRECT ANSWER.

Discussion

33.	Find the area of the parallelogram whose height is 9 cm and base is 12 cm
Answer» Answer: 108 SQ cm Step-by-step explanation: AREA of parallelogram = height × BASE = 9 × 12 = 108 sq cm

33.

Find the area of the parallelogram whose height is 9 cm and base is 12 cm

Answer»

Answer:

108 SQ cm

Step-by-step explanation:

AREA of parallelogram = height × BASE

= 9 × 12

= 108 sq cm

Discussion

34.	Unyi3. How many two digit numbers can be formed with 5,7, or 9 as the first digit and 4, 6 or 8 as the seconddigit?
Answer» ANSWER: with 5 =10 7=10 9=10 4=9 6=9 8=9

34.

Unyi3. How many two digit numbers can be formed with 5,7, or 9 as the first digit and 4, 6 or 8 as the seconddigit?

Answer»

ANSWER:

with 5 =10

7=10

9=10

4=9

6=9

8=9

Discussion

35.	Divide *₹3,232 among 16 men, 12 women and 10 children, that the ratioin the amount received by a man, a woman and a child is 7:5: 3.
Answer» Answer: Let be RATIO proportion = x Mens = 7X x 16 =112X Womens = 5X x 12 =60X Childrens = 3X x 10= 30X Mens +womens+ childrens =3232 112X + 60X +30X = 3232 202X =3232 X=3232/202 X= 16 Mens = 112 x 16 =1792 Womens = 60 x 16 = 960 childrens = 30 x 16= 480 MARK ME AS BRAINLIEST..... Step-by-step explanation:

35.

Divide *₹3,232 among 16 men, 12 women and 10 children, that the ratioin the amount received by a man, a woman and a child is 7:5: 3.

Answer»

Answer:

Let be RATIO proportion = x

Mens = 7X x 16 =112X

Womens = 5X x 12 =60X

Childrens = 3X x 10= 30X

Mens +womens+ childrens =3232

112X + 60X +30X = 3232

202X =3232

X=3232/202

X= 16

Mens = 112 x 16 =1792

Womens = 60 x 16 = 960

childrens = 30 x 16= 480

MARK ME AS BRAINLIEST.....

Step-by-step explanation:

Discussion

36.	The LSA of a triangular prism
Answer» *Lateral SURFACE AREA of a Triangular Prism Formula* Lateral Surface Area of a Triangular Prism Formula Finds the total area CONTAINED by the three rectangular sides of the prism. You can think of the lateral surface area as the total surface area of the prism MINUS the two triangular areas at the top and bottom of the prism. Alat=h(a+b+c)

36.

The LSA of a triangular prism

Answer»

Lateral SURFACE AREA of a Triangular Prism Formula

Lateral Surface Area of a Triangular Prism Formula Finds the total area CONTAINED by the three rectangular sides of the prism. You can think of the lateral surface area as the total surface area of the prism MINUS the two triangular areas at the top and bottom of the prism. Alat=h(a+b+c)

Discussion

37.	Divide (ii) 3/14 ÷ 11/42 want answer foe these question also
Answer» First REARRANGE the EXPRESSION to $\frac{−20x2+11x+17 }{14x\\\\2,}$ and proceed as usual.

37.

Divide (ii) 3/14 ÷ 11/42 want answer foe these question also

Answer»

First REARRANGE the EXPRESSION to

$\frac{−20x2+11x+17 }{14x\\\\2,}$

and proceed as usual.

Discussion

38.	In figure, find the area of shaded region
Answer» ANSWER: 4/5 is the CORRECT answer Step-by-step EXPLANATION: HOPE it HELPS you.

38.

In figure, find the area of shaded region

Answer»

ANSWER:

4/5 is the CORRECT answer

Step-by-step EXPLANATION:

HOPE it HELPS you.

Discussion

39.	Calculate the HCF of 3^3×5 and 3^4×5^2
Answer» ANSWER: =3^35 =3^45^2 =3335 =333355 HCF=3335 =275=135

39.

Calculate the HCF of 3^3×5 and 3^4×5^2

Answer»

ANSWER:

=3^3*5

=3^4*5^2

=3*3*3*5

=3*3*3*3*5*5

HCF=3*3*3*5

=27*5=135

Discussion

40.	Please give my questions answered
Answer» ANSWER: geggeggewkkhggfffddddddddddddd

40.

Please give my questions answered

Answer»

ANSWER:

geggeggewkkhggfffddddddddddddd

Discussion

41.	Simplify: (x+y+z)(x+y-z)
Answer» here is UR ANSWER MATE ! MARK IT AS BRAINLIEST & FOLLOW ME FOR AGAIN UR GREAT ANSWERS :-

41.

Simplify: (x+y+z)(x+y-z)

Answer»

here is UR ANSWER MATE !

MARK IT AS BRAINLIEST & FOLLOW ME FOR AGAIN UR GREAT ANSWERS :-

Discussion

42.	The perimeter of Square is 120m.find the sides of it. and what is its area
Answer» Step-by-step EXPLANATION: perimeter=4s 120=4s 120/4=30=s area=sXs 30X30=900

42.

The perimeter of Square is 120m.find the sides of it. and what is its area

Answer»

Step-by-step EXPLANATION:

perimeter=4s

120=4s

120/4=30=s

area=sXs

30X30=900

Discussion

43.	Please answer my question please please please 9/2×1/4
Answer» 9/2×1/4 = 9/8 hope this HELPS

43.

Please answer my question please please please 9/2×1/4

Answer»

9/2×1/4 = 9/8

hope this HELPS

Discussion

44.	Draw a graph of y=3x
Answer» Step-by-step EXPLANATION: See the attached IMAGE. SLOPE is tan^-1( 3 ) Hope it helps Please mark BRAINLIEST

44.

Draw a graph of y=3x

Answer»

Step-by-step EXPLANATION:

See the attached IMAGE. SLOPE is tan^-1( 3 )

Hope it helps

Please mark BRAINLIEST

Discussion

45.	The greatest number which divides 10 and 30 is
Answer» Answer: 10 only or 5. RADHE Radhe Step-by-step explanation: mark me as BRAINLIEST i will answer your questions PUCCA within TWO minutes

45.

The greatest number which divides 10 and 30 is

Answer»

Answer:

10 only or 5. RADHE Radhe

Step-by-step explanation:

mark me as BRAINLIEST i will answer your questions PUCCA within TWO minutes

Discussion

46.	Verify the Identity (x+a) (x+b) = x²+(a+b)x+ab for x= 11 a=9 and b=-7
Answer» Step-by-step EXPLANATION: don't KNOW this ANSWER

46.

Verify the Identity (x+a) (x+b) = x²+(a+b)x+ab for x= 11 a=9 and b=-7

Answer»

Step-by-step EXPLANATION:

don't KNOW this ANSWER

Discussion

47.	The HCF and LCM of two numbers are 120and 6 respectively. If onenumber is 30, write the other number
Answer» ANSWER: HYE GYES how are you PLEASE FOLLOW me

47.

The HCF and LCM of two numbers are 120and 6 respectively. If onenumber is 30, write the other number

Answer»

ANSWER:

HYE GYES how are you PLEASE FOLLOW me

Discussion

48.	A pipe can fill a tank with water in 3 hours.Due to leakage in bottom it takes 3.5 hours to fill it.in what time will the leak empty the tank?
Answer» Step-by-step explanation: pipe takes 3 hours to FILL So in 1 hour it FILLS 1/3 Let the leakage take X hours to empty the tank In 1 hour it empties 1/x of the tank So together they fill 1/3- 1X of the tank in 1 hour i.e. 1/3 - 1/x = 1/3.5 MULTIPLY BY 10.5x 3.5x - 10.5 = 3x 0.5x =10.5 x = 21 hours ANSWER hope it helps mark me as brainliest like it and follow me tooo.....

48.

A pipe can fill a tank with water in 3 hours.Due to leakage in bottom it takes 3.5 hours to fill it.in what time will the leak empty the tank?

Answer»

Step-by-step explanation:

pipe takes 3 hours to FILL

So in 1 hour it FILLS 1/3

Let the leakage take X hours to empty the tank

In 1 hour it empties 1/x of the tank

So together they fill 1/3- 1X of the tank in 1 hour

i.e. 1/3 - 1/x = 1/3.5

MULTIPLY BY 10.5x

3.5x - 10.5 = 3x

0.5x =10.5

x = 21 hours ANSWER

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Discussion

49.	Find five rational numbers between 35and 45
Answer» Five NUMBERS r 6 5 2 3 8

Discussion

50.	Find the following number of cubes in the following structures
Answer» Answer: 8 Step-by-step EXPLANATION: NUMBER of CUBES in the FOLLOWING structures-8

50.

Find the following number of cubes in the following structures

Answer»

Answer:

8

Step-by-step EXPLANATION:

NUMBER of CUBES in the FOLLOWING structures-8

Discussion

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