332354 + Interview Questions in Secondary School in Math

1.	The numerator of a certain fraction is 8 less than the denominator. If3 is added to the numerator and 3 is subtracted from thedenominator, the fraction becomes 3/4. Find the original fraction?
Answer» Let the DENOMINATOR be x FRACTION= x x−5 x+3 x−5+3 = 5 4 x+3 x−2 = 5 4 5(x−2)=4(x+3) 5x−4x=12+10 x=22 So, numerator=x−5=22−5=17 and denominator=22 So, the ORIGINAL fraction= 22 17

1.

The numerator of a certain fraction is 8 less than the denominator. If3 is added to the numerator and 3 is subtracted from thedenominator, the fraction becomes 3/4. Find the original fraction?

Answer»

Let the DENOMINATOR be x

FRACTION=

x

x−5

x+3

x−5+3

=

5

4

x+3

x−2

=

5

4

5(x−2)=4(x+3)

5x−4x=12+10

x=22

So, numerator=x−5=22−5=17

and denominator=22

So, the ORIGINAL fraction=

22

17

Discussion

2.	Integration x ( x-1)^2 dx
Answer» ANSWER: THANKS H NICOTINIC HIDDEN

2.

Integration x ( x-1)^2 dx

Answer»

ANSWER:

THANKS H NICOTINIC HIDDEN

Discussion

3.	There are 20 students in a class average age of class increases by 3 months when a 23 years old student replaced by another one find the age of new student
Answer» Answer: The average age of 20 students is 12 years. ∴ Total age of 20 students =20×12=240years It is given that, student who is 10years old left the class. ∴ Total age of 19 students =240−10=230years An then 2 new students entered and average remain same. ∴ Total age of 21 students =21×12=252years ⇒ Total age of 2 new students who entered in the class =252−230=22years Let X and y be the two new students. ∴ x+y=22 ------ ( 1 ) According to the question, x−y=4 ----- ( 2 ) Now adding (1) and (2), we GET, x=13 Putting value of x in EQUATION ( 1 ) we get, y=9 ∴ The age of YOUNGER one is 9years Step-by-step explanation: please mark this answer as brainlist answer

3.

There are 20 students in a class average age of class increases by 3 months when a 23 years old student replaced by another one find the age of new student

Answer»

Answer:

The average age of 20 students is 12 years.

∴ Total age of 20 students =20×12=240years

It is given that, student who is 10years old left the class.

∴ Total age of 19 students =240−10=230years

An then 2 new students entered and average remain same.

∴ Total age of 21 students =21×12=252years

⇒ Total age of 2 new students who entered in the class =252−230=22years

Let X and y be the two new students.

∴ x+y=22 ------ ( 1 )

According to the question,

x−y=4 ----- ( 2 )

Now adding (1) and (2), we GET,

x=13

Putting value of x in EQUATION ( 1 ) we get,

y=9

∴ The age of YOUNGER one is 9years

Step-by-step explanation:

please mark this answer as brainlist answer

Discussion

4.	Factorisation method9-2√32-x²3-12
Answer» US the 2nd and call me when you're free qwerty and call me when you're free to the 6th 6th telugu to the brothers were not a reaply and the government to take a result in telugu to the brothers were not a reaply and the government to take a look at the tow large number of Africa has been in the government to take a look at the tow large number of Africa has been in telugu to the brothers were here are you doing now and the government to take a look at the tow large number of Africa has been in telugu to get a reaply of the Mediterranean climate name is a LITTLE more than an hour get a reaply of the Mediterranean climate name is a little bit of a reaply and the government to take a look at the tow large number of them A lot of the below one's has to be increased to CHANGE WATER and the government to take a look at the tow large number of Africa has been run by Ganga the tow large number of Africa has been in telugu to the brothers were not a reaply and the government 6th u u can do it and the tow large number of Africa has been in telugu to the brothers were not a reaply and the government to take a look at the tow large number of Africa has urge the government to take a look at the tow large number of Africa has been in telugu to the brothers were not a reaply and the government to take

4.

Factorisation method9-2√32-x²3-12

Answer»

US the 2nd and call me when you're free qwerty and call me when you're free to the

6th 6th telugu to the brothers were not a reaply and the government to take a
result in telugu to the brothers were not a reaply and the government to take a look at the tow large number of Africa has been in
the government to take a look at the tow large number of Africa has been in telugu to the brothers were
here are you doing now and the government to take a look at the tow large number of Africa has been in telugu to
get a reaply of the Mediterranean climate name is a LITTLE more than an hour
get a reaply of the Mediterranean climate name is a little bit of a reaply and the government to take a look at the tow large number of
them A lot of the below one's has to be increased to CHANGE WATER and the government to take a look at the tow large number of Africa has been
run by Ganga the tow large number of Africa has been in telugu to the brothers were not a reaply and the government
6th u u can do it and the tow large number of Africa has been in telugu to the brothers were not a reaply and the government to take a look at the tow large number of Africa has
urge the government to take a look at the tow large number of Africa has been in telugu to the brothers were not a reaply and the government to take

Discussion

5.	9x² +7 +59please answer fast
Answer» Step-by-step EXPLANATION: USE MIDDLE TERM SPLITTING

5.

9x² +7 +59please answer fast

Answer»

Step-by-step EXPLANATION:

USE MIDDLE TERM SPLITTING

Discussion

6.	1. If a water sprinkler spray water 315cm in each direction . Find the area in which it sprinkles water.
Answer» Answer: what's your DP pls don't DELETE this answer but I guess it is SUGA

6.

1. If a water sprinkler spray water 315cm in each direction . Find the area in which it sprinkles water.

Answer»

Answer:

what's your DP pls don't DELETE this answer but I guess it is SUGA

Discussion

7.	0.48 / 6Please answer fast.
Answer» Step-by-step explanation: 48/ 6×100 48/600 =0.08 or 8 /100

7.

0.48 / 6Please answer fast.

Answer»

Step-by-step explanation:

48/ 6×100

48/600

=0.08 or 8 /100

Discussion

8.	If O Is the center of the circle and ACB=50 then Find x
Answer» Step-by-step explanation: angle AOB= 2 angle ACB =2*50 =100° (angle at CENTER is twice angle at remaining CIRCUMFERENCE) x=360-100 =260° (reflex angle)

8.

If O Is the center of the circle and ACB=50 then Find x

Answer»

Step-by-step explanation:

angle AOB= 2 angle ACB

=2*50

=100°

(angle at CENTER is twice angle at remaining CIRCUMFERENCE)

x=360-100

=260°

(reflex angle)

Discussion

9.	Find the reduced form of ratio of first quantity to second quantity 87,58
Answer» ANSWER: JFU I am AARAV KA DOREMON the same

9.

Find the reduced form of ratio of first quantity to second quantity 87,58

Answer»

ANSWER:

JFU I am AARAV KA DOREMON the same

Discussion

10.	. Factorise : x^{2}– 81
Answer» ANSWER: HOPE you GOT your answer

10.

. Factorise : x^{2}– 81

Answer»

ANSWER:

HOPE you GOT your answer

Discussion

11.	Sasdwweeeeeeeeeeeeeeeeee
Answer» ANSWER: What is this , ASK QUESTIONS about your LEARNING

11.

Sasdwweeeeeeeeeeeeeeeeee

Answer»

ANSWER:

What is this , ASK QUESTIONS about your LEARNING

Discussion

12.	Find the mean proportion 20 and 5
Answer» $\huge\blue{Answer \:࿐ \:}$ $\huge\blue{Answer \:࿐ \:}$ $\huge\blue{Answer \:࿐ \:}$ $\huge\red{Brainliest \:Banado \:}$ $\huge\blue{Answer \:࿐ \:}$ $\huge\red{Brainliest \:Banado \:}$ $\huge\pink{Follow \:Kardo \:}$

12.

Find the mean proportion 20 and 5

Answer»

$\huge\blue{Answer \:࿐ \:}$

$\huge\blue{Answer \:࿐ \:}$ $\huge\red{Brainliest \:Banado \:}$

$\huge\blue{Answer \:࿐ \:}$ $\huge\red{Brainliest \:Banado \:}$ $\huge\pink{Follow \:Kardo \:}$

Discussion

13.	Two numbers are in the ratio 4:7.If4 is addedto each number then the ratio becomes 3,: 5. Find the smaller number
Answer» ANSWER: let the RATIO 4and 7 be 4X and 7x according to the question ; 4x+4/ 7x+4 = 3/5 =5(4x+4 )=3(7x+4) = 20x+20=21x = 12 20x-21x = 12-20 -x = -18 therefore x= 18 4x = 4 * 18 = 72 7x = 7 * 18 = 126 Step-by-step explanation:

13.

Two numbers are in the ratio 4:7.If4 is addedto each number then the ratio becomes 3,: 5. Find the smaller number

Answer»

ANSWER:

let the RATIO 4and 7 be 4X and 7x

according to the question ;

4x+4/ 7x+4 = 3/5

=5(4x+4 )=3(7x+4)

= 20x+20=21x = 12

20x-21x = 12-20

-x = -18

therefore x= 18

4x = 4 * 18 = 72

7x = 7 * 18 = 126

Step-by-step explanation:

Discussion

14.	Dinesh went from place A to place B and from there to place C.A is 7.5km from B and B is 12.7km from C. Ayub went from place A to place D and from there to place C.D is 9.3km from A and C is 11.8km from D. who travelled more and by how much?
Answer» Answer: Distance travelled by Dinesh = AB + BC = 7.5+12=19.5 Distance travelled by AYUB = AD + DC = 9.3+11.8=21.1 Ayub travelled more than Dinesh . difference=21.1-19.5=1.6 He travelled 1.6 KM more than Dinesh Step-by-step explanation: please mark this answer as brainlist answer

14.

Dinesh went from place A to place B and from there to place C.A is 7.5km from B and B is 12.7km from C. Ayub went from place A to place D and from there to place C.D is 9.3km from A and C is 11.8km from D. who travelled more and by how much?

Answer»

Answer:

Distance travelled by Dinesh = AB + BC = 7.5+12=19.5

Distance travelled by AYUB = AD + DC = 9.3+11.8=21.1

Ayub travelled more than Dinesh .

difference=21.1-19.5=1.6

He travelled 1.6 KM more than Dinesh

Step-by-step explanation:

please mark this answer as brainlist answer

Discussion

15.	Warning: You can Get addicted to this songMUST LISTENTHANKS ME LATER!!!Its beat drops much harder than Father's belt×d
Answer» ANSWER: OK PLEASE MARK ME AS BRAINLIST

15.

Warning: You can Get addicted to this songMUST LISTENTHANKS ME LATER!!!Its beat drops much harder than Father's belt×d

Answer»

ANSWER:

OK PLEASE MARK ME AS BRAINLIST

Discussion

16.	Simplify3a-2b-ab-(a-b+ab)+3ab+b-a
Answer» Step-by-step EXPLANATION: HOPE it will HELP ☺️ to you

16.

Simplify3a-2b-ab-(a-b+ab)+3ab+b-a

Answer»

Step-by-step EXPLANATION:

HOPE it will HELP ☺️ to you

Discussion

17.	Two circles with radii 5cm and 3cm intersect at two points and the distance between their centres is 4cm. What is the length of the common chord ??
Answer» GIVEN: Two circles with radii 5CM and 3cm intersect at two points and the DISTANCE between their centres is 4cm. what is the length of the common chord? SOLUTION: Here AB= AD=5cm(radius of first circle), BC= DC=3cm(radius of 2nd circle) AC=4 cm as the distance between the centers. Firstly we find the area of the △ABC by heron’s formula i.e. Area of △ABC =sqrt of {s.(s−a).(s−b).(s−c)} Here s= semiperimeter = (5+3+4)/2= 6 Therefore Area of △ABC = sqrt of {6. (6-5). (6-3). (6 -4)} = sqrt of (6.1.3.2) = sqrt of (36) =6 Now by SSS criteria △ADC and △ABC are congruent.(AB=AD=5, BC=DC=3, AC= common) Now by SAS criteria △ABE and △ADE are congruent.(AB=AD, AE= common, ∠ABE=∠ADE) Thus ∠AEB=∠AED, but since ∠AEB+∠AED=180∘, so we have ∠AEB=∠AED=90∘. Similarly, ∠BEC=∠DEC=90∘. Thus, we can see that BE is the height of △ABC, and DE is the height of △ADC, with base AC. So, BD=BE+DE =2(ABC)/AC+2(ADC)/AC [Using formula Area of △ABC= 1/2×base×height] =4(ABC)/4 =(ABC) [ (ABC) is the area of △ABC) > BD= 6 cm { as (ABC)=6 calculated by heron’s formula}

17.

Two circles with radii 5cm and 3cm intersect at two points and the distance between their centres is 4cm. What is the length of the common chord ??

Answer»

GIVEN:

Two circles with radii 5CM and 3cm intersect at two points and the DISTANCE between their centres is 4cm. what is the length of the common chord?

SOLUTION:

Here AB= AD=5cm(radius of first circle),

BC= DC=3cm(radius of 2nd circle)

AC=4 cm as the distance between the centers.

Firstly we find the area of the △ABC by heron’s formula

i.e. Area of △ABC =sqrt of {s.(s−a).(s−b).(s−c)}

Here s= semiperimeter = (5+3+4)/2= 6

Therefore Area of △ABC

= sqrt of {6. (6-5). (6-3). (6 -4)}

= sqrt of (6.1.3.2)

= sqrt of (36)

=6

Now by SSS criteria △ADC and △ABC are congruent.(AB=AD=5, BC=DC=3, AC= common)

Now by SAS criteria △ABE and △ADE are congruent.(AB=AD, AE= common, ∠ABE=∠ADE)

Thus ∠AEB=∠AED, but since ∠AEB+∠AED=180∘, so we have ∠AEB=∠AED=90∘.

Similarly, ∠BEC=∠DEC=90∘.

Thus, we can see that BE is the height of △ABC, and DE is the height of △ADC, with base AC. So,

BD=BE+DE

=2(ABC)/AC+2(ADC)/AC

[Using formula Area of △ABC= 1/2×base×height]

=4(ABC)/4

=(ABC) [ (ABC) is the area of △ABC)

> BD= 6 cm { as (ABC)=6 calculated by heron’s formula}

Discussion

18.	The equation which represents the above situation algebraically is-a) 2+7−120=0b) 2+5−120=0c) 82+7−120=0d) 2+2−120=0
Answer» ANSWER: D Step-by-step EXPLANATION: Just ADD me on BRAINLIEST answer

18.

The equation which represents the above situation algebraically is-a) 2+7−120=0b) 2+5−120=0c) 82+7−120=0d) 2+2−120=0

Answer»

ANSWER:

D

Step-by-step EXPLANATION:

Just ADD me on BRAINLIEST answer

Discussion

19.	Find the volume of a hemisphere whose diameter is 14 cm
Answer» Answer : Volume of HEMISPHERE is 718.6cm³ Given : Diameter is 14cm To find : Volume of a hemisphere Solution : Given Diameter is 14cm Radius = 14/2 = 7cm Radius is 7cm As we know that , Volume of hemisphere = 2/3 πR³ where r is 7cm ⟶ V = 2/3 × 22/7 × 7³ ⟶ v = 2/3 × 22/7 × 7 × 7 × 7 ⟶ v = 2/3 × 22/7 × 343 ⟶ v = 718.6cm³ Hence , Volume of hemisphere is 718.6cm³ More EXPLANATION : Volume of hemisphere = 2/3 πr³ surface AREA of hemisphere = 2πr²

19.

Find the volume of a hemisphere whose diameter is 14 cm

Answer»

Answer :

Volume of HEMISPHERE is 718.6cm³

Given :

Diameter is 14cm

To find :

Volume of a hemisphere

Solution :

Given Diameter is 14cm

Radius = 14/2 = 7cm
Radius is 7cm

As we know that ,

Volume of hemisphere = 2/3 πR³

where r is 7cm

⟶ V = 2/3 × 22/7 × 7³

⟶ v = 2/3 × 22/7 × 7 × 7 × 7

⟶ v = 2/3 × 22/7 × 343

⟶ v = 718.6cm³

Hence , Volume of hemisphere is 718.6cm³

More EXPLANATION :

Volume of hemisphere = 2/3 πr³
surface AREA of hemisphere = 2πr²

Discussion

20.	Find hcf of 48,10,15
Answer» ANSWER: 1 Step-by-step EXPLANATION: PLEASE THANKS my answer

20.

Find hcf of 48,10,15

Answer»

ANSWER:

1

Step-by-step EXPLANATION:

PLEASE THANKS my answer

Discussion

21.	A rectangular swimming pool is 9m long and its total length is 243m.find the width of the pool
Answer» ANSWER: Here is your answer PLEASE MARK me as BRAIN LIST please

21.

A rectangular swimming pool is 9m long and its total length is 243m.find the width of the pool

Answer»

ANSWER:

Here is your answer PLEASE MARK me as BRAIN LIST please

Discussion

22.	Byy what number should (-4)5 be divided so that the question is equal to (-4)3
Answer» Tataaaaaaaaaaaaaaaa PLZ MARK me as BRILLIANT

Discussion

23.	(10t-25) ÷ (2t-5) solve it explain
Answer» I Am Ok Not Ok The THONG

Discussion

24.	Compare which one is the greatest -2/5,-1/2,8/-15,-3/10
Answer» Answer: -3/-10 Step-by-step explanation: firstly we have to take the LCM of the denominators So their LCM will be 30 then just SOLVE the sum *Thanku... hope* it *HELPS..if have* *any* *PROBLEM..just ask....please LIKE*

24.

Compare which one is the greatest -2/5,-1/2,8/-15,-3/10

Answer»

Answer:

-3/-10

Step-by-step explanation:

firstly we have to take the LCM of the denominators

So their LCM will be 30

then just SOLVE the sum

Thanku... hope it HELPS..if have any PROBLEM..just ask....please LIKE

Discussion

25.	Sides of a triangle has perimeterof 12, 17:25 and perimeter issuo cm, Find it's area
Answer» Step-by-step EXPLANATION: Given SIDE in ratio - 12:17:25 Therefore, SIDES of a Triangle = 12x , 17x ,25x Perimeter=540 cm perimeter of a Triangle : sum of all sides 540= 12x + 17x +25 x 540= 54 x x = 540÷54 X= 10 12× 10 =120 cm 17 × 10 = 170 cm 25×10 = 250 cm semi-perimeter (s) : a+b+c÷2 120+170+250÷ 2 540÷2= 270 cm using Heron's Formula √s(s-a)(s-b) (s-c) √270(270-120)(270-170)(270-250) √270(150)(100)(20) √81000000 9000 cm² Hope it will help you

25.

Sides of a triangle has perimeterof 12, 17:25 and perimeter issuo cm, Find it's area

Answer»

Step-by-step EXPLANATION:

Given SIDE in ratio - 12:17:25

Therefore, SIDES of a Triangle = 12x , 17x ,25x

Perimeter=540 cm

perimeter of a Triangle : sum of all sides

540= 12x + 17x +25 x

540= 54 x

x = 540÷54

X= 10

12× 10 =120 cm

17 × 10 = 170 cm

25×10 = 250 cm

semi-perimeter (s) : a+b+c÷2

120+170+250÷ 2

540÷2= 270 cm

using Heron's Formula √s(s-a)(s-b) (s-c)

√270(270-120)(270-170)(270-250)

√270(150)(100)(20)

√81000000

9000 cm²

Hope it will help you

Discussion

26.	Ten competitors in a beauty contest are ranked by three judges
Answer» ANSWER: What is the question ? Please be a BIT CLEARER in asking QUESTIONS..

26.

Ten competitors in a beauty contest are ranked by three judges

Answer»

ANSWER:

What is the question ?

Please be a BIT CLEARER in asking QUESTIONS..

Discussion

27.	Answer it correctly don't spam its vry urgent
Answer» (x-4)/7 - (x+4)/5 = (x+3) / 7 => (5x-20-7x-28)/35 = (x+3) / 7 => (2x-48)/35 = (x+3)/7 By cross multiplication, we GET => 35(x+3)= 7(2x-48) => 35x + 105 = 14 x - 336 => 35x - 14X = -336 - 105 => 21x = - 441 => x = - 441/21 => x = -21

27.

Answer it correctly don't spam its vry urgent

Answer»

(x-4)/7 - (x+4)/5 = (x+3) / 7

=> (5x-20-7x-28)/35 = (x+3) / 7

=> (2x-48)/35 = (x+3)/7

By cross multiplication, we GET

=> 35(x+3)= 7(2x-48)

=> 35x + 105 = 14 x - 336

=> 35x - 14X = -336 - 105

=> 21x = - 441

=> x = - 441/21

=> x = -21

Discussion

28.	What will be the expression of the polynomial representing the rainbow?a) = + b) = + + c) = + + + d)None of these
Answer» Step-by-step EXPLANATION: ++d) NONE of these becace all the NUMBER are DIFFERENT jsinsidubs

28.

What will be the expression of the polynomial representing the rainbow?a) = + b) = + + c) = + + + d)None of these

Answer»

Step-by-step EXPLANATION:

++d) NONE of these becace all the NUMBER are DIFFERENT jsinsidubs

Discussion

29.	Find the ratio of 5 kg to 600 gmneed verified answer please....☹️
Answer» 5KG,600GM AS WE KNOW 1KG=1000GM THERFORE,5KG = 5*1000GM=5000GM 5000:600 BOTH ZERO CANCEL SO, 50:6

29.

Find the ratio of 5 kg to 600 gmneed verified answer please....☹️

Answer»

5KG,600GM

AS WE KNOW 1KG=1000GM

THERFORE,5KG = 5*1000GM=5000GM

5000:600

BOTH ZERO CANCEL SO,

50:6

Discussion

30.	Multiply in horizontal arrangement: (4p – 11) (3p +2)
Answer» Step-by-step explanation: 4p – 11 3p + 2 ———— $4p - 11 \\ 3p + 2 \\ 12p {}^{2} - 33p$ 8P — 22 =12p² – 25P – 22 Yan SAGOT...

30.

Multiply in horizontal arrangement: (4p – 11) (3p +2)

Answer»

Step-by-step explanation:

4p – 11

3p + 2

————

$4p - 11 \\ 3p + 2 \\ 12p {}^{2} - 33p$

8P — 22

=12p² – 25P – 22

Yan SAGOT...

Discussion

31.	Write the rationalizing factor of 1/(√7-3)
Answer» Step-by-step EXPLANATION: it is SOLVE by RATIONALISING METHOD....

31.

Write the rationalizing factor of 1/(√7-3)

Answer»

Step-by-step EXPLANATION:

it is SOLVE by RATIONALISING METHOD....

Discussion

32.	The area of a rectangle is 25x²-81y². If its length is (5x+9y), find its breadth.
Answer» Answer: it will be 1 because the LENGTH bis EQUAL to the given AREA

32.

The area of a rectangle is 25x²-81y². If its length is (5x+9y), find its breadth.

Answer»

Answer:

it will be 1 because the LENGTH bis EQUAL to the given AREA

Discussion

33.	3.Represent each of the given fraction on the number line: 3/8
Answer» ANSWER: Step-by-step EXPLANATION: PLEASE MARK this as BRAINLIEST.

33.

3.Represent each of the given fraction on the number line: 3/8

Answer»

ANSWER:

Step-by-step EXPLANATION:

PLEASE MARK this as BRAINLIEST.

Discussion

34.	5. Which congruence rule makes AABC = ARSQ in the given figure?
Answer» Which CLASS of this QUESTION PLZ MARK me as WELL

Discussion

35.	If p(y)=y2-5y+6, then find the value of p(y)+p(-y).
Answer» ANSWER: HOPE you GOT your answer

35.

If p(y)=y2-5y+6, then find the value of p(y)+p(-y).

Answer»

ANSWER:

HOPE you GOT your answer

Discussion

36.	The ratio 5 to n2 and 10 to 4 are called
Answer» Answer: COMPOUND ratio. Compound Ratio = 50 : 8 = 25 : 4

36.

The ratio 5 to n2 and 10 to 4 are called

Answer»

Answer:

COMPOUND ratio.

Compound Ratio = 50 : 8 = 25 : 4

Discussion

37.	X-2=7:x-2+__=7+__:x=__
Answer» Answer: 9 Step-by-step explanation: X - 2 = 7 x = 7 + 2 x = 9 Reply me is it right or WRONG Thanks.

37.

X-2=7:x-2+=7+:x=__

Answer»

Answer:

9

Step-by-step explanation:

X - 2 = 7

x = 7 + 2

x = 9

Reply me is it right or WRONG

Thanks.

Discussion

38.	-48+(-30) +90+(-6) find the solution
Answer» Answer: 6 Step-by-step EXPLANATION: It will BECOME -48-30+90-6 after OPENING BRACKETS. So answer would be 6.

38.

-48+(-30) +90+(-6) find the solution

Answer»

Answer:

6

Step-by-step EXPLANATION:

It will BECOME -48-30+90-6 after OPENING BRACKETS. So answer would be 6.

Discussion

39.	The diagonal of a rectangle exceeds its length by4 cm and its width by 6.4 cm. Find the length of thediagonal.
Answer» ANSWER: d≈7.55cm LENGTH 4CM WIDTH 6.4cm

39.

The diagonal of a rectangle exceeds its length by4 cm and its width by 6.4 cm. Find the length of thediagonal.

Answer»

ANSWER:

d≈7.55cm

LENGTH 4CM

WIDTH 6.4cm

Discussion

40.	In triangle abc a is equal to x b is equal to70 c is equal to 80 degress Then the value of x is
Answer» ANSWER: nwvdusvsteiansjetjqg

40.

In triangle abc a is equal to x b is equal to70 c is equal to 80 degress Then the value of x is

Answer»

ANSWER:

nwvdusvsteiansjetjqg

Discussion

41.	if a(b!) is completely divisible by 5^11 where a is single digit number find the minimum value of b.
Answer» GIVEN : a(b!) is COMPLETELY divisible by 5^11 where a is single digit number To find : the minimum value of b. Solution: for minimum value of b a = 5 5.b! divisible by 5¹¹ => b! divisible by 5¹⁰ => [b/5] + [b/5²] + [b/5³] + ... + . ≥ 10 b = 5 => [5/5] + [5/5²] + [5/5³] + ... + . = 1 + 0 + = 1 b = 25 => [25/5] + [25/5²] + [25/5³] + ... + . = 5 + 1 + 0 + .. = 6 b = 50 => [50/5] + [50/5²] + [50/5³] + ... + . = 10 + 2 + 0 + .. = 12 b = 45 => [45/5] + [45/5²] + [45/5³] + ... + . = 9 + 1 + 0 + .. = 10 Hence minimum value of b = 45 Learn More: what is the highest power of 91 that divides 78! ? - Brainly.in brainly.in/question/11090581 the largest positive integer k such that 12^k divides (109)! is - Brainly.in brainly.in/question/9532149

41.

if a(b!) is completely divisible by 5^11 where a is single digit number find the minimum value of b.

Answer»

GIVEN : a(b!) is COMPLETELY divisible by 5^11 where a is single digit number

To find : the minimum value of b.

Solution:

for minimum value of b

a = 5

5.b! divisible by 5¹¹

=> b! divisible by 5¹⁰

=> [b/5] + [b/5²] + [b/5³] + ... + . ≥ 10

b = 5

=> [5/5] + [5/5²] + [5/5³] + ... + .

= 1 + 0 +

= 1

b = 25

=> [25/5] + [25/5²] + [25/5³] + ... + .

= 5 + 1 + 0 + ..

= 6

b = 50

=> [50/5] + [50/5²] + [50/5³] + ... + .

= 10 + 2 + 0 + ..

= 12

b = 45

=> [45/5] + [45/5²] + [45/5³] + ... + .

= 9 + 1 + 0 + ..

= 10

Hence minimum value of b = 45

Learn More:

what is the highest power of 91 that divides 78! ? - Brainly.in

brainly.in/question/11090581

the largest positive integer k such that 12^k divides (109)! is - Brainly.in

brainly.in/question/9532149

Discussion

42.	X(X+1)(X+2)(X+3) division (X+1)(X+2)
Answer» I HOPE it will HELPS you

42.

X(X+1)(X+2)(X+3) division (X+1)(X+2)

Answer»

I HOPE it will HELPS you

Discussion

43.	Add 5root 2 + 7 root 3 and 2 root 3 - 3 root 2
Answer» Step-by-step explanation: 5√2 + 7√3 + 2√3 - 3√2 5√2 - 3√2 + 7√3 + 2√3 2√2 + 9√3 I HOPE it is HELPFUL

43.

Add 5root 2 + 7 root 3 and 2 root 3 - 3 root 2

Answer»

Step-by-step explanation:

5√2 + 7√3 + 2√3 - 3√2

5√2 - 3√2 + 7√3 + 2√3

2√2 + 9√3

I HOPE it is HELPFUL

Discussion

44.	What should be added to 3x²-5xy+4y² to obtain x²-xy+y²?
Answer» HEY there! Here's the solution to your question. Answer: -2x² +4XY - 3y² Step-by-step explanation: To know what should be ADDED to 3x²-5xy+4y² to obtain x²-xy+y², we have to subtract 3x²-5xy+4y² from x²-xy+y². So, 1 x² - 1 X y + 1 y² (-) 3 x² - 5 x y + 4 y² - 2x² + 4 x y - 3 y² Therefore, - 2x² +4xy - 3y² should be added to 3x²-5xy+4y² to obtain x²-xy+y². Thanks!

44.

What should be added to 3x²-5xy+4y² to obtain x²-xy+y²?

Answer»

HEY there!

Here's the solution to your question.

Answer: -2x² +4XY - 3y²

Step-by-step explanation:

To know what should be ADDED to 3x²-5xy+4y² to obtain x²-xy+y²,

we have to subtract 3x²-5xy+4y² from x²-xy+y².

So, 1 x² - 1 X y + 1 y²

(-) 3 x² - 5 x y + 4 y²

- 2x² + 4 x y - 3 y²

Therefore, - 2x² +4xy - 3y² should be added to 3x²-5xy+4y² to obtain x²-xy+y².

Thanks!

Discussion

45.	(x+y)(x2-xy+y)plz answer my question
Answer» ANSWER: x^3 + y^3 Step-by-step explanation: This is QUITE straight FORWARD, it is an identity. The identity says---> x^3 + y^3 = (x+y)(x^2-xy+y^2) So that is the answer. If you want to verify it, OPEN the brackets on RHS and you will get the same answer as of LHS. HOPE IT HELPS ! PLEASE MARK AS BRAINLIEST :)

45.

(x+y)(x2-xy+y)plz answer my question

Answer»

ANSWER:

x^3 + y^3

Step-by-step explanation:

This is QUITE straight FORWARD, it is an identity.

The identity says--->

x^3 + y^3 = (x+y)(x^2-xy+y^2)

So that is the answer.

If you want to verify it, OPEN the brackets on RHS and you will get the same answer as of LHS.

HOPE IT HELPS !

PLEASE MARK AS BRAINLIEST :)

Discussion

46.	7 hrs 30 min × 31 = ____ hrs _____ min
Answer» ANSWER: 8 HOURS and 1 minute Mark me a BRAINALIST answer

46.

7 hrs 30 min × 31 = hrs _ min

Answer»

ANSWER:

8 HOURS and 1 minute

Mark me a BRAINALIST answer

Discussion

47.	the length of rectangle is twice its breadth. the perimeter of the rectangle is 36cm. frame a linear equation in one variable
Answer» ANSWER: The correct option is B Step-by-step explanation: If we take breadth= x length= 2x perimeter of a rectangle= 2(l+b) 36= 2(2x+x) THEREFORE, 2(2x+x)=36

47.

the length of rectangle is twice its breadth. the perimeter of the rectangle is 36cm. frame a linear equation in one variable

Answer»

ANSWER:

The correct option is B

Step-by-step explanation:

If we take breadth= x

length= 2x

perimeter of a rectangle= 2(l+b)

36= 2(2x+x)

THEREFORE, 2(2x+x)=36

Discussion

48.	Divide 17km 200m = 5 [Express in m].
Answer» ANSWER: hhhxbdgdhdbdhdhbrhrhrhdhr

48.

Divide 17km 200m = 5 [Express in m].

Answer»

ANSWER:

hhhxbdgdhdbdhdhbrhrhrhdhr

Discussion

49.	27.Draw a line segment of length 12cm and draw a perpendicular bisector. Writsteps of construction,orollologram divides it in two congruent triangles.
Answer» Answer: I drowing mo lang daw po ANG length 12cm tapos i drowning daw po ang perpendicular i drowning lang daw po tapos ollologram i divided SA dalawang congruent triangles Step-by-step EXPLANATION: PA brainlies po salamat

49.

27.Draw a line segment of length 12cm and draw a perpendicular bisector. Writsteps of construction,orollologram divides it in two congruent triangles.

Answer»

Answer:

I drowing mo lang daw po ANG length 12cm tapos i drowning

daw po ang perpendicular i drowning lang daw po tapos ollologram i divided SA dalawang congruent triangles

Step-by-step EXPLANATION:

PA brainlies po salamat

Discussion

50.	1. Find the perimeter of the following figuresa.10 cm9 cm11 cm
Answer» ANSWER: gkkyarlri8t88w584qoyeiq5 Step-by-step explanation: 7rotayijttiuetori7utsiyo6e9e77fidpfzlryfi696y8 riirfupyp496p5w5w56wwt7w85 6rhhirtiyaty7uuryeayspura8teo68titet8rwu5wi6 rii5r9it0e8r78uiiyoptia4p4w04q0q4

50.

1. Find the perimeter of the following figuresa.10 cm9 cm11 cm

Answer»

ANSWER:

gkkyarlri8t88w584qoyeiq5

Step-by-step explanation:

7rotayijttiuetori7utsiyo6e9e77fidpfzlryfi696y8

riirfupyp496p5w5w56wwt7w85

6rhhirtiyaty7uuryeayspura8teo68titet8rwu5wi6

rii5r9it0e8r78uiiyoptia4p4w04q0q4

Discussion

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