332354 + Interview Questions in Secondary School in Math

1.	A TV. survey showthat 60% people Show programA 50% show programmeand. 50% See Programc 1 30% see programme a & 20% see program. B and C 30% see programeea and10% clodo notnot seeProgramme bindandsee anysee programmey what percenta b cc.a) what percent see exechy 2 Programm3 What percent See Programme Aonlyटीवी चैनल शो दैट 60% पीपल शो प्रोग्राम है 50% शो प्रोग्राम बी एंड 50% सी प्रोग्राम्स इन सी प्रोग्रामिंग इन सी प्रोग्राम बीएससी थर्ड ईयर सी प्रोग्राम एंड 6 एंड 10 एंड दो नॉट सी एनी प्रोग्राम 5 वोट परसेंट सी प्रोग्राम है बी एंड सी
Answer» ANSWER: I don't no this answer L am SORRY

1.

A TV. survey showthat 60% people Show programA 50% show programmeand. 50% See Programc 1 30% see programme a & 20% see program. B and C 30% see programeea and10% clodo notnot seeProgramme bindandsee anysee programmey what percenta b cc.a) what percent see exechy 2 Programm3 What percent See Programme Aonlyटीवी चैनल शो दैट 60% पीपल शो प्रोग्राम है 50% शो प्रोग्राम बी एंड 50% सी प्रोग्राम्स इन सी प्रोग्रामिंग इन सी प्रोग्राम बीएससी थर्ड ईयर सी प्रोग्राम एंड 6 एंड 10 एंड दो नॉट सी एनी प्रोग्राम 5 वोट परसेंट सी प्रोग्राम है बी एंड सी

Answer»

ANSWER:

I don't no this answer L am SORRY

Discussion

2.	4. Choose the correct option to fill inthe blank. The boy threw his bagO carelesslyO seriouslyO loudlyO hungrily
Answer» ANSWER: • carelessly Step-by-step explanation: because threwing bag is CARELESS THING

2.

4. Choose the correct option to fill inthe blank. The boy threw his bagO carelesslyO seriouslyO loudlyO hungrily

Answer»

ANSWER:

• carelessly

Step-by-step explanation:

because threwing bag is CARELESS THING

Discussion

3.	-4x^3-6x^2+10x divide by 2x
Answer» Answer: - 2x^2 - 3x + 5 Step-by-step EXPLANATION: Answer is in the ATTACHMENT with complete STEPS.

3.

-4x^3-6x^2+10x divide by 2x

Answer»

Answer:

- 2x^2 - 3x + 5

Step-by-step EXPLANATION:

Answer is in the ATTACHMENT with complete STEPS.

Discussion

4.	If I is the length of the side of the pentagon, perimeter of a regular pentagon is
Answer» ANSWER: ʟᴇᴛ ᴛʜᴇ ʟᴇɴɢᴛʜ ᴏғ ᴛʜᴇ sɪᴅᴇ ᴏғ ᴛʜᴇ ᴘᴇɴᴛᴀɢᴏɴ ɪs ʟ. $p = 5a \\ p = 5 \times l \\ p = 5l$

4.

If I is the length of the side of the pentagon, perimeter of a regular pentagon is

Answer»

ANSWER:

ʟᴇᴛ ᴛʜᴇ ʟᴇɴɢᴛʜ ᴏғ ᴛʜᴇ sɪᴅᴇ ᴏғ ᴛʜᴇ ᴘᴇɴᴛᴀɢᴏɴ ɪs ʟ.

$p = 5a \\ p = 5 \times l \\ p = 5l$

Discussion

5.	In Euler's theorem n indicatesa) Orderb) Degreec) Neither order nor degreed) None of these
Answer» ANSWER: NEITHER ORDER nor DEGREE

5.

In Euler's theorem n indicatesa) Orderb) Degreec) Neither order nor degreed) None of these

Answer»

ANSWER:

NEITHER ORDER nor DEGREE

Discussion

6.	Plot the following and check weather they are collinear or not - (1,2),(2,-1) (-1,4)
Answer» Answer: Step-by-step EXPLANATION: Let A(1,2), B(2,-1) C(-1,4) suppose Slope = m when the points are said to be collinear their slopes are equal Therefore,MAB =MBC = mAC slope m = (y2-y1)/(x2-x1) mAB = (-1-2)/(2-1) => -3/1 => -3 mBC = (4-(-1))/(-1-2) => (4+1) /(-3) => -5/3 mAC = (4-1)/(-1-1) => 3/-2 => -3/2 the slopes are not equal therefore they are not collinear

6.

Plot the following and check weather they are collinear or not - (1,2),(2,-1) (-1,4)

Answer»

Answer:

Step-by-step EXPLANATION:

Let A(1,2), B(2,-1) C(-1,4)

suppose Slope = m

when the points are said to be collinear their slopes are equal

Therefore,MAB =MBC = mAC

slope m = (y2-y1)/(x2-x1)

mAB = (-1-2)/(2-1) => -3/1 => -3

mBC = (4-(-1))/(-1-2) => (4+1) /(-3) => -5/3

mAC = (4-1)/(-1-1) => 3/-2 => -3/2

the slopes are not equal

therefore they are not collinear

Discussion

7.	Is 8128 a perfect number?
Answer» 8128 is the integer FOLLOWING 8127 and PRECEDING 8129. It is most notable for being a perfect NUMBER (its divisors 1, 2, 4, 8, 16, 32, 64, 127, 254, 508, 1016, 2032, and 4064 add up to 8128), and one of the earliest NUMBERS to be recognized as such.

Discussion

8.	OTHE TRIANGLE AND ITS PRO70°5001150х100°(ii)60°80°120°x/30°X хCiv2. Find the value of the unknown interior anglex in the following figures:
Answer» Answer: UNLIKE other people in ONE COUNTRY and bhabhi and a large group me NHI to paisa h to muj par with a great deal and

8.

OTHE TRIANGLE AND ITS PRO70°5001150х100°(ii)60°80°120°x/30°X хCiv2. Find the value of the unknown interior anglex in the following figures:

Answer»

Answer:

UNLIKE other people in ONE COUNTRY and bhabhi and a large group me NHI to paisa h to muj par with a great deal and

Discussion

9.	If x = -2, find the value of 3x^3 - 5x^2 + 4
Answer» Answer: . if x is INVERSELY proportional to y and x = 40 when y = 5, find:a) The value of x ... pair of LINEAR equation by substuation method 3x -y =3 and 4x +2y = 3.

9.

If x = -2, find the value of 3x^3 - 5x^2 + 4

Answer»

Answer:

. if x is INVERSELY proportional to y and x = 40 when y = 5, find:a) The value of x ... pair of LINEAR equation by substuation method 3x -y =3 and 4x +2y = 3.

Discussion

10.	Give any two examples of plane
Answer» Answer: Some EXAMPLES of plane SHAPES that you may see EVERY day are stop signs, a SHEET of paper, a paper PLATE, a stamp, or even a tortilla chip. Step-by-step explanation: hope it helps

10.

Give any two examples of plane

Answer»

Answer:

Some EXAMPLES of plane SHAPES that you may see EVERY day are stop signs, a SHEET of paper, a paper PLATE, a stamp, or even a tortilla chip.

Step-by-step explanation:

hope it helps

Discussion

11.	Factorisation : 7x^2 + 5√7x + 4
Answer» $\Large{\underbrace{\underline{\sf{Understanding\;the\; Concept}}}}$ Here we have given a quadratic equation and we have to factorise it to obtain the ROOTS of the equation. $\rule{300}{2}$ We can factorise quadratic equations by 2 METHODS: First- middle term splitting. 2nd- quadratic formula. $\rule{300}{2}$ So let's factorise it by middle term splitting! $\rule{300}{2}$ Given Quadratic Equation: 7x²+5√7x+4=0 $\rule{300}{2}$ Middle term splitting In middle term splitting method we have to split the middle term ( or coefficient of x) such that the sum of SPLITTED term is equal to middle term and their product will be equal to the product of coefficient of x² and constant term. 7x²+5√7x+4=0 7x²+4√7x+√7x+4=0 $\rule{300}{2}$ Now let's expand it more for better understanding: √7√7x²+4√7x+√7+4=0 Now take COMMON values aside: √7x(√7x+4)+1(√7x+4)=0 (√7x+1)((√7x+4)=0 $\rule{300}{2}$ First root: √7x+1=0 √7x=-1 $\boxed{\sf{x=\dfrac{1}{\sqrt7}}}$ Now rationalise it: $\sf{ x=\dfrac{1\times \sqrt7}{\sqrt7\times\sqrt7}}$ $\boxed{\sf{x=\dfrac{\sqrt7}{7}}}$ $\rule{300}{2}$ SECOND root: √7x+4=0 √7x=-4 $\boxed{\sf{ x=\dfrac{-4}{\sqrt7}}}$ Now rationalise it: $\sf{ x=\dfrac{-4\times\sqrt7}{\sqrt7\times\sqrt7}}$ $\boxed{\sf{x=\dfrac{-4\sqrt7}{7}}}$ $\rule{300}{2}$ So the roots are:- $\sf{\dfrac{\sqrt7}{7}\;and\; \dfrac{-4\sqrt7}{7}}$ $\rule{300}{2}$

11.

Factorisation : 7x^2 + 5√7x + 4

Answer»

$\Large{\underbrace{\underline{\sf{Understanding\;the\; Concept}}}}$

Here we have given a quadratic equation and we have to factorise it to obtain the ROOTS of the equation.

$\rule{300}{2}$

We can factorise quadratic equations by 2 METHODS:

First- middle term splitting.

2nd- quadratic formula.

$\rule{300}{2}$

So let's factorise it by middle term splitting!

$\rule{300}{2}$

Given Quadratic Equation:

7x²+5√7x+4=0

$\rule{300}{2}$

Middle term splitting

In middle term splitting method we have to split the middle term ( or coefficient of x) such that the sum of SPLITTED term is equal to middle term and their product will be equal to the product of coefficient of x² and constant term.

7x²+5√7x+4=0

7x²+4√7x+√7x+4=0

$\rule{300}{2}$

Now let's expand it more for better understanding:

√7√7x²+4√7x+√7+4=0

Now take COMMON values aside:

√7x(√7x+4)+1(√7x+4)=0

(√7x+1)((√7x+4)=0

$\rule{300}{2}$

First root:

√7x+1=0

√7x=-1

$\boxed{\sf{x=\dfrac{1}{\sqrt7}}}$

Now rationalise it:

$\sf{ x=\dfrac{1\times \sqrt7}{\sqrt7\times\sqrt7}}$

$\boxed{\sf{x=\dfrac{\sqrt7}{7}}}$

$\rule{300}{2}$

SECOND root:

√7x+4=0

√7x=-4

$\boxed{\sf{ x=\dfrac{-4}{\sqrt7}}}$

Now rationalise it:

$\sf{ x=\dfrac{-4\times\sqrt7}{\sqrt7\times\sqrt7}}$

$\boxed{\sf{x=\dfrac{-4\sqrt7}{7}}}$

$\rule{300}{2}$

So the roots are:-

$\sf{\dfrac{\sqrt7}{7}\;and\; \dfrac{-4\sqrt7}{7}}$

$\rule{300}{2}$

Discussion

12.	Why do we need to measure temprature explain your answer 100 marks questioncorrect answer I will mark as brainlist
Answer» Answer: MEASURING body temperature is very IMPORTANT in medicine. A number of diseases are characterised by a CHANGE in body temperature. With other illnesses, the course of the DISEASE can be followed by measuring body temperature. This allows the doctor to analyse the effectiveness of treatments based on body TEMPERATURES.

12.

Why do we need to measure temprature explain your answer 100 marks questioncorrect answer I will mark as brainlist

Answer»

Answer:

MEASURING body temperature is very IMPORTANT in medicine. A number of diseases are characterised by a CHANGE in body temperature. With other illnesses, the course of the DISEASE can be followed by measuring body temperature. This allows the doctor to analyse the effectiveness of treatments based on body TEMPERATURES.

Discussion

13.	1. Sum of the series (98 + 42 + 18 + 54/7 + ...)2. Evaluate the first 30 terms of the sequence ( 64, 16, 4, 1, ....)3. Evaluate the first 30 terms of the sequence (5, 17/2, 12, 31/2, ...)
Answer» Answer: COLLECTING points Step-by-step explanation: and GIVING wrong ANSWERS is my DEGREE

13.

1. Sum of the series (98 + 42 + 18 + 54/7 + ...)2. Evaluate the first 30 terms of the sequence ( 64, 16, 4, 1, ....)3. Evaluate the first 30 terms of the sequence (5, 17/2, 12, 31/2, ...)

Answer»

Answer:

COLLECTING points

Step-by-step explanation:

and GIVING wrong ANSWERS is my DEGREE

Discussion

14.	-(--x) same asoption -xx1/x-1/x
Answer» ANSWER: The answer should be (- x) Step-by-step explanation: As the double minus will become PLUS and the minus OUTSIDE the bracket will MAKE the x negative. HOPE IT HELPS! :)

14.

-(--x) same asoption -xx1/x-1/x

Answer»

ANSWER:

The answer should be (- x)

Step-by-step explanation:

As the double minus will become PLUS and the minus OUTSIDE the bracket will MAKE the x negative.

HOPE IT HELPS! :)

Discussion

15.	The perimeters of two simlar triangles are 30 em and 20cm respectively. If one side of the firsttriangle is 12cm, determine the corresponding side of the second triangle.
Answer» Answer: 55526555 को री युवा री Step-by-step EXPLANATION: कल को 18285528194616

15.

The perimeters of two simlar triangles are 30 em and 20cm respectively. If one side of the firsttriangle is 12cm, determine the corresponding side of the second triangle.

Answer»

Answer:

55526555 को री युवा री

Step-by-step EXPLANATION:

कल को 18285528194616

Discussion

16.	The set of all even integers with respect to usual addition and multiplication is a
Answer» Answer: The set of all even INTEGERS FORMS a COMMUTATIVE RING under the usual addition and MULTIPLICATION of integers

16.

The set of all even integers with respect to usual addition and multiplication is a

Answer»

Answer:

The set of all even INTEGERS FORMS a COMMUTATIVE RING under the usual addition and MULTIPLICATION of integers

Discussion

17.	The value of expression 5n -2 when n =-2 is.
Answer» Answer: -12 Step-by-step explanation: N =-2 5n -2 5 X(-2) -2 -10-2 -12 Please mark me as BRAINLIEST

17.

The value of expression 5n -2 when n =-2 is.

Answer»

Answer:

-12

Step-by-step explanation:

N =-2

5n -2

5 X(-2) -2

-10-2

-12

Please mark me as BRAINLIEST

Discussion

18.	032 A cone and a sphere have equal volume. If the radius of the cone is 11cm, calculate height of cone, in terms of spheres radius.
Answer» ANSWER: सीएम उन Step-by-step EXPLANATION: इसी एक गों इस रस यह वो तो टक दो तो टक टक टक री ऑक्स

18.

032 A cone and a sphere have equal volume. If the radius of the cone is 11cm, calculate height of cone, in terms of spheres radius.

Answer»

ANSWER:

सीएम उन

Step-by-step EXPLANATION:

इसी एक गों इस रस यह वो तो टक दो तो टक टक टक री ऑक्स

Discussion

19.	Write the equation y + 1/3y = 2 in general form.WARNING: Those who give irrelevant answers will get a slap XDPlease write fast.
Answer» Answer: 83 Step-by-step EXPLANATION: PLEASE MARK me as BRAINLIEST and follow me

19.

Write the equation y + 1/3y = 2 in general form.WARNING: Those who give irrelevant answers will get a slap XDPlease write fast.

Answer»

Answer:

83

Step-by-step EXPLANATION:

PLEASE MARK me as BRAINLIEST and follow

me

Discussion

20.	If the radius is doubled the perimeter of the circle becomes ____________
Answer» ANSWER: The circumference of a circle is equal to the diameter times pi. So, LET's look at what happens if you double the radius of a circle -- say from 2 to 4. The AREA will go from 12.56 to 50.24. This means that it has quadrupled.

20.

If the radius is doubled the perimeter of the circle becomes ____________

Answer»

ANSWER:

The circumference of a circle is equal to the diameter times pi. So, LET's look at what happens if you double the radius of a circle -- say from 2 to 4. The AREA will go from 12.56 to 50.24. This means that it has quadrupled.

Discussion

21.	Write the co efficient of X2 in the expression (2x-5)2
Answer» 4 is the COEFFICIENT of X2

Discussion

22.	(2) 7 more than 916 is
Answer» 7 more than 916 is 923. I HOPE this will HELP you dear.. Always stay SAFE and stay healthy..

22.

(2) 7 more than 916 is

Answer»

7 more than 916 is 923.

I HOPE this will HELP you dear..

Always stay SAFE and stay healthy..

Discussion

23.	find two equivalent fractions of each. Use multiplication or division, whichever is easier. (a) 3/7 (b) 2/9 (c) 12/36 (d) 28/70 (e) 20/100
Answer» ANSWER: E) Step-by-step explanation: PLEASE thanks all my ANSWERS and mark the brainliest

23.

find two equivalent fractions of each. Use multiplication or division, whichever is easier. (a) 3/7 (b) 2/9 (c) 12/36 (d) 28/70 (e) 20/100

Answer»

ANSWER:

E)

Step-by-step explanation:

PLEASE thanks all my ANSWERS and mark the brainliest

Discussion

24.	4)Three cubes of silver with edges 3cm,4 cm 5 cm are melted and recast into asingle cube. Find the cost of coating the surface of the new cube with gold at therate of Rs 4.50 per square centimeter.
Answer» Answer: 4)Three CUBES of silver with EDGES 3cm,4 cm 5 cm are melted and recast into a single cube. Find the COST of COATING the surface of the new cube with gold at the rate of Rs 4.50 PER square centimeter.

24.

4)Three cubes of silver with edges 3cm,4 cm 5 cm are melted and recast into asingle cube. Find the cost of coating the surface of the new cube with gold at therate of Rs 4.50 per square centimeter.

Answer»

Answer:

4)Three CUBES of silver with EDGES 3cm,4 cm 5 cm are melted and recast into a

single cube. Find the COST of COATING the surface of the new cube with gold at the

rate of Rs 4.50 PER square centimeter.

Discussion

25.	Findtheequationofalineperpendiculartothelinex-2y+3=0andpassingthroughthepoint(1,-2).
Answer» Answer: i told you honestly I don't know its answer PLEASE make me a brainlist MERE honesty KE liye mujhe BRIANLIST bana do please

25.

Findtheequationofalineperpendiculartothelinex-2y+3=0andpassingthroughthepoint(1,-2).

Answer»

Answer:

i told you honestly I don't know its answer PLEASE make me a brainlist MERE honesty KE liye mujhe BRIANLIST bana do please

Discussion

26.	Convert into km 20 _ 66metre
Answer» Answer: 20_66 METER into KM = 0.0207

26.

Convert into km 20 _ 66metre

Answer»

Answer:

20_66 METER into KM = 0.0207

Discussion

27.	Find Two Rational numbers b/w 2/11 &7/11
Answer» ANSWER: answer is: 3/11 and 4/11 Step-by-step EXPLANATION: pls MARK me as brainlist and follow me

27.

Find Two Rational numbers b/w 2/11 &7/11

Answer»

ANSWER:

answer is: 3/11 and 4/11

Step-by-step EXPLANATION:

pls MARK me as brainlist and follow me

Discussion

28.	प्रश्न 23. एक ऋणात्मक परिमेय संख्या का व्युत्क्रम क्या होता है?
Answer» Answer: negative HI hoga agar EXPLAIN krna ho to bta dena

28.

प्रश्न 23. एक ऋणात्मक परिमेय संख्या का व्युत्क्रम क्या होता है?

Answer»

Answer:

negative HI hoga agar EXPLAIN krna ho to bta dena

Discussion

29.	In a triangle if ∠a=2∠b=6∠c find the measure of ∠a,∠b and ∠c and finth the value of of ∠a+2∠b/3∠c
Answer» ANSWER: u have to SOLVE by USING TRIANGLE PROPERTIES

29.

In a triangle if ∠a=2∠b=6∠c find the measure of ∠a,∠b and ∠c and finth the value of of ∠a+2∠b/3∠c

Answer»

ANSWER:

u have to SOLVE by USING TRIANGLE PROPERTIES

Discussion

30.	Find the value of xy and fromand from the figure
Answer» ANSWER: Where is the FIGURE?

30.

Find the value of xy and fromand from the figure

Answer»

ANSWER:

Where is the FIGURE?

Discussion

31.	1. GOLD can be written as HOME, COMEcan be written as DONE then SONS canbe written(1)TTOT(2) TooT(4)TONT(3) TOOS
Answer» ANSWER: TOOS is the correct answer Step-by-step explanation: PLZ.. mark as *BRAINLIEST* ✨

31.

1. GOLD can be written as HOME, COMEcan be written as DONE then SONS canbe written(1)TTOT(2) TooT(4)TONT(3) TOOS

Answer»

ANSWER:

TOOS is the correct answer

Step-by-step explanation:

PLZ.. mark as BRAINLIEST ✨

Discussion

32.	Zero zero of the polynomial p (x)=x+d is ?
Answer» Step-by-step EXPLANATION: hdhdgbdbzvhdbzdjdudjdbjddhbbdbdhdjkjdhdje *hheieone* *hjejejjejejejgge*

32.

Zero zero of the polynomial p (x)=x+d is ?

Answer»

Step-by-step EXPLANATION:

hdhdgbdbzvhdbzdjdudjdbjddhbbdbdhdjkjdhdje hheieone

hjejejjejejejgge

Discussion

33.	The wheel of a cart is making 5 revolutions per second. If the diameter ofthe wheel is 42cm, find its speed in km/hr.
Answer» ANSWER: HOPE it HELPS MARK as brainliest Step-by-step EXPLANATION:

33.

The wheel of a cart is making 5 revolutions per second. If the diameter ofthe wheel is 42cm, find its speed in km/hr.

Answer»

ANSWER:

HOPE it HELPS MARK as brainliest

Step-by-step EXPLANATION:

Discussion

34.	Solve for x : 2^x+3=4^x-1
Answer» Answer: Answer. 2x + 3 = 4X - 1 => 2x + 3 - 4x = 4x - 1 - 4x => - 2x + 3 = - 1 => 2x - 3 = 1 => X = 4/2 = 2.

34.

Solve for x : 2^x+3=4^x-1

Answer»

Answer:

Answer. 2x + 3 = 4X - 1 => 2x + 3 - 4x = 4x - 1 - 4x => - 2x + 3 = - 1 => 2x - 3 = 1 => X = 4/2 = 2.

Discussion

35.	Hey anyone here who know partial fraction topic - integration
Answer» Step-by-step EXPLANATION: Is this the ANSWER which U are TRYING to FIND

35.

Hey anyone here who know partial fraction topic - integration

Answer»

Step-by-step EXPLANATION:

Is this the ANSWER which U are TRYING to FIND

Discussion

36.	Cos4x+cos3x+cos2xsin4x+sin3x+sin2x=cot3x.
Answer» Step-by-step EXPLANATION: wwb-ytma-cge j.o.i.n g.i.r.l.s

36.

Cos4x+cos3x+cos2xsin4x+sin3x+sin2x=cot3x.

Answer»

Step-by-step EXPLANATION:

wwb-ytma-cge j.o.i.n g.i.r.l.s

Discussion

37.	Find the value of p°,q° from the figure
Answer» Answer: LINE p is \|\| to line q so, angle p and q will be same 90-13 =77 p and q =77 DEGREE

37.

Find the value of p°,q° from the figure

Answer»

Answer:

LINE p is || to line q

so,

angle p and q will be same

90-13

=77

p and q =77 DEGREE

Discussion

38.	EXE1. Construct a triangle ABC in which2. Construct a triangle ABC in whichB. Construct a triangle PQR in whichConstruct a triangle XYZ in whichngle whose
Answer» ANSWER: nqeqnqrgn2yrn2yb3yngwegrwby3rnh22n3b3

38.

EXE1. Construct a triangle ABC in which2. Construct a triangle ABC in whichB. Construct a triangle PQR in whichConstruct a triangle XYZ in whichngle whose

Answer»

ANSWER:

nqeqnqrgn2yrn2yb3yngwegrwby3rnh22n3b3

Discussion

39.	20y5 by -5/2y3 divide
Answer» ANSWER: -8y^8 Step-by-step explanation: 20y^5/(-5/2y^3) CROSS multiplying 20y^5 X 2y^3/(-5) 4y^5 x 2y^3/(-1) 8y^8/(-1) -8y^8

39.

20y5 by -5/2y3 divide

Answer»

ANSWER:

-8y^8

Step-by-step explanation:

20y^5/(-5/2y^3) CROSS multiplying

20y^5 X 2y^3/(-5)

4y^5 x 2y^3/(-1)

8y^8/(-1)

-8y^8

Discussion

40.	1) The length and breadth of the floor of a hall are 420 cm and 260cm. howmany square tiles each of side 20cm are needed to cover the floor?
Answer» Answer: STEP1:- LENGTH = 420 cm and breadth= 260 cm step2:-area of rectangle :- length × breadth step3:-area of rectangle = (420 × 260) cm² =109200 cm² step4:- side of square tile = 20 cm step5 :- area of square = (side)² =(20)²=400cm² step6:- number of TILES required = 109200/400 =273 273 number of tiles are required for covering the floor.

40.

1) The length and breadth of the floor of a hall are 420 cm and 260cm. howmany square tiles each of side 20cm are needed to cover the floor?

Answer»

Answer:

STEP1:- LENGTH = 420 cm and breadth= 260 cm

step2:-area of rectangle :- length × breadth

step3:-area of rectangle = (420 × 260) cm²

=109200 cm²

step4:- side of square tile = 20 cm

step5 :- area of square = (side)²

=(20)²=400cm²

step6:- number of TILES required = 109200/400

=273

273 number of tiles are required for covering the floor.

Discussion

41.	The area of a rectangle is given by A = 6x²y + 4y²x and the width of rectangle is w= 2xy. What is the perimeter of rectangle ?
Answer» Answer: area of rectangle= LENGTH×BREADTH =L×B here area,A= 6x²y+4y²x and breadth = W= 2xy LET, length be L then the required equation is: $l \times 2xy = 6 {x}^{2}y + 4 {y}^{2}x \\ l = 6 {x}^{2}y + 4 {y}^{2}x \div 2xy \\ l = 3x + 4y$ HENCE, length of rectangle= 3x+4y perimeter of rectangle= 2(L+B) =2(3x+4y+2xy) 6x+8y+4xy

41.

The area of a rectangle is given by A = 6x²y + 4y²x and the width of rectangle is w= 2xy. What is the perimeter of rectangle ?

Answer»

Answer:

area of rectangle= LENGTH×BREADTH

=L×B

here area,A= 6x²y+4y²x

and breadth = W= 2xy

LET, length be L

then the required equation is:

$l \times 2xy = 6 {x}^{2}y + 4 {y}^{2}x \\ l = 6 {x}^{2}y + 4 {y}^{2}x \div 2xy \\ l = 3x + 4y$

HENCE, length of rectangle= 3x+4y

perimeter of rectangle= 2(L+B)

=2(3x+4y+2xy)

6x+8y+4xy

Discussion

42.	तुल्य भिन्न लिखिए 1.2
Answer» 12/10 OKAY sman me AYA YA NHI BTANA

Discussion

43.	Find (5m + 7n) square
Answer» 25m square + 49 N square (5m+7n)(5m+7n)

43.

Find (5m + 7n) square

Answer»

25m square + 49 N square

(5m+7n)(5m+7n)

Discussion

44.	3. Solve the Equation by isolating the variable: 8d-16 =48
Answer» Answer: 8d= 48+16 8d=64 d=64/8 d= 8

44.

3. Solve the Equation by isolating the variable: 8d-16 =48

Answer»

Answer:

8d= 48+16

8d=64

d=64/8

d= 8

Discussion

45.	In the given figure ab//xy//cd. find the measure of angle eofif u answer this correctly i Will mark u as thé brainliest
Answer» ANSWER: I don't do this because I have not TIME

45.

In the given figure ab//xy//cd. find the measure of angle eofif u answer this correctly i Will mark u as thé brainliest

Answer»

ANSWER:

I don't do this because I have not TIME

Discussion

46.	2. The sum of ( -6x + y2) and (-4x - y2) is _______.
Answer» Step-by-step EXPLANATION: THEREFORE, the SOLUTION of the EQUATIONS is x=7,y=9. Hence, x−3y=7−27=−20 and 5y−2x=45−14=31.

46.

2. The sum of ( -6x + y2) and (-4x - y2) is _______.

Answer»

Step-by-step EXPLANATION:

THEREFORE, the SOLUTION of the EQUATIONS is x=7,y=9.

Hence, x−3y=7−27=−20 and 5y−2x=45−14=31.

Discussion

47.	The expansion of (x+2) (x+5) =
Answer» Step-by-step EXPLANATION: (x+2) (x+5) = x(x+5)+2(x+5) = $x^{2}$ + 5x + 2x + 10 = $x^{2}$ + 7X + 10 (ANS)

47.

The expansion of (x+2) (x+5) =

Answer»

Step-by-step EXPLANATION:

(x+2) (x+5)

= x(x+5)+2(x+5)

= $x^{2}$ + 5x + 2x + 10

= $x^{2}$ + 7X + 10 (ANS)

Discussion

48.	A number when divided by 493 gives 79 as quotient and 230 as remainder what is the number
Answer» ANSWER: DO THE SUM LIKE THIS. OK, HOPE THIS HELPED YOU.

48.

A number when divided by 493 gives 79 as quotient and 230 as remainder what is the number

Answer»

ANSWER:

DO THE SUM LIKE THIS.

OK, HOPE THIS HELPED YOU.

Discussion

49.	The given figure consists of a cylindrical base surmounted by a conical roof. Radius of the cone and cylinder are same 6cm. Find the volume of the given figure given height of the cylinder is 14cm. Height of the cone is 7cm
Answer» Answer: Volume of Figure = 1848 cm^2 Step-by-step explanation: In CYLINDER, --Radius of cylinder = 6cm --Height of cylinder = 14cm --Volume of cylinder = π $r^{2}h$ = $\frac{22}{7} . (6^{2}) . 14 \\22 . 36. 2 \\1584 cm^{2}$ In CONE, --Radius of cone = 6cm --Height of cone = 7cm -- Volume of cone = $\frac{1}{3}$ π $r^{2} h$ = $\frac{1}{3}.\frac{22}{7}.6^{2}.7 \\\frac{1}{3}.\frac{22}{7}.6.6.7 \\22 * 12 \\ <klux>264</klux> cm^{2}$ TOTAL Volume = Volume of cone + Volume of Cylinder = 1584 cm^2 + 264 cm^2 = 1848 cm^2

49.

The given figure consists of a cylindrical base surmounted by a conical roof. Radius of the cone and cylinder are same 6cm. Find the volume of the given figure given height of the cylinder is 14cm. Height of the cone is 7cm

Answer»

Answer:

Volume of Figure = 1848 cm^2

Step-by-step explanation:

In CYLINDER,

--Radius of cylinder = 6cm

--Height of cylinder = 14cm

--Volume of cylinder = π $r^{2}h$

= $\frac{22}{7} . (6^{2}) . 14 \\22 . 36. 2 \\1584 cm^{2}$

In CONE,

--Radius of cone = 6cm

--Height of cone = 7cm

-- Volume of cone = $\frac{1}{3}$ π $r^{2} h$

= $\frac{1}{3}.\frac{22}{7}.6^{2}.7 \\\frac{1}{3}.\frac{22}{7}.6.6.7 \\22 * 12 \\ <klux>264</klux> cm^{2}$

TOTAL Volume = Volume of cone + Volume of Cylinder

= 1584 cm^2 + 264 cm^2

= 1848 cm^2

Discussion

50.	A tv set is marked for sale at rupees 24080. Find the cost of the set if 12% GST is included
Answer» ANSWER: 28414.40 Step-by-step EXPLANATION: I THINK it is CORRECT answer

50.

A tv set is marked for sale at rupees 24080. Find the cost of the set if 12% GST is included

Answer»

ANSWER:

28414.40

Step-by-step EXPLANATION:

I THINK it is CORRECT answer

Discussion

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