332354 + Interview Questions in Secondary School in Math Page 387 InterviewSolution

19301.	If 20 N force applied on an area of 5m calculate the pressure
Answer» Answer: 20/5 4pascal WOW what a HARD QUESTION GUYS

19301.

If 20 N force applied on an area of 5m calculate the pressure

Answer»

Answer:

20/5 4pascal WOW what a HARD QUESTION GUYS

Discussion

19302.	What is common factor in 15,11,3
Answer» ANSWER: There are no COMMON FACTORS between this number because 11 is a prime number and it is not DIVISIBLE by any number given here but between 3 and 15 '3'can be common factor.

19302.

What is common factor in 15,11,3

Answer»

ANSWER:

There are no COMMON FACTORS between this number because 11 is a prime number and it is not DIVISIBLE by any number given here but between 3 and 15 '3'can be common factor.

Discussion

19303.	A part of monthly expenses of a family on milk is fixed for ₹ 500 and the remaining varies with the quantity of the milk, taken extra at the rate of ₹ 20 per kg. Taking the quantity of milk required extra as x kg and the total expenditure on milk is ₹ y, write a linear equation for this information and draw its graph.
Answer» Step-by-step explanation: Question :- A part of monthly expenses of a family on milk is fixed for ₹ 500 and the REMAINING varies with the quantity of the milk, taken extra at the rate of ₹ 20 per KG. TAKING the quantity of milk required extra as x kg and the total expenditure on milk is ₹ y, write a linear equation for this information and draw its graph. Given :- A part of monthly expenses of a family on milk is fixed for ₹ 500. the remaining varies with the quantity of the milk, taken extra at the rate of ₹ 20 per kg. Taking the quantity of milk required extra as x kg . the total expenditure on milk is ₹ y, To Find :- write a linear equation for this information and draw its graph. Solution :- If The quantity of extra milk be 'x' kg and expenditure be 7'y then according to the given condition, y = 20x + 500 (As ? 500 is the fixed expenditure) Put x = 0 in equation (i) y = 20(0) + 500 y = 500 Put y = 1000 in equation (i) 1000 = 20x + 500 1000 - 500 = 20x 500 = 20x x = 500/20 x = 25 kg Put x = 2 in equation (i) y = 20(2) + 500 y = 40 + 500 y = 540 Hence the x is 25 kg and y is 540

19303.

A part of monthly expenses of a family on milk is fixed for ₹ 500 and the remaining varies with the quantity of the milk, taken extra at the rate of ₹ 20 per kg. Taking the quantity of milk required extra as x kg and the total expenditure on milk is ₹ y, write a linear equation for this information and draw its graph.

Answer»

Step-by-step explanation:

Question :-

A part of monthly expenses of a family on milk is fixed for ₹ 500 and the REMAINING varies with the quantity of the milk, taken extra at the rate of ₹ 20 per KG. TAKING the quantity of milk required extra as x kg and the total expenditure on milk is ₹ y, write a linear equation for this information and draw its graph.

Given :-

A part of monthly expenses of a family on milk is fixed for ₹ 500.
the remaining varies with the quantity of the milk, taken extra at the rate of ₹ 20 per kg.
Taking the quantity of milk required extra as x kg .
the total expenditure on milk is ₹ y,

To Find :-

write a linear equation for this information and draw its graph.

Solution :-

If The quantity of extra milk be 'x' kg and expenditure be 7'y then according to the given condition,

y = 20x + 500

(As ? 500 is the fixed expenditure)

Put x = 0 in equation (i)

y = 20(0) + 500

y = 500

Put y = 1000 in equation (i)

1000 = 20x + 500

1000 - 500 = 20x

500 = 20x

x = 500/20

x = 25 kg

Put x = 2 in equation (i)

y = 20(2) + 500

y = 40 + 500

y = 540

Hence the x is 25 kg and y is 540

Discussion

19304.	GivenSinocosoCOSCOS- sinoXsino (so)COSOcosoL
Answer» ANSWER: It is not UNDERSTANDABLE.... ....

19304.

GivenSinocosoCOSCOS- sinoXsino (so)COSOcosoL

Answer»

ANSWER:

It is not UNDERSTANDABLE.... ....

Discussion

19305.	X^2+2xy-z^2-2yz factorise
Answer» ANSWER: ${x}^{2} + 2xy - {z}^{2} - 2yz$ $x(x + 2y) - z(z + 2y)$ $( x - z)(x +z+ 2y)$ here is your answer hope it HELPS you..!!!

19305.

X^2+2xy-z^2-2yz factorise

Answer»

ANSWER:

${x}^{2} + 2xy - {z}^{2} - 2yz$

$x(x + 2y) - z(z + 2y)$

$( x - z)(x +z+ 2y)$

here is your answer

hope it HELPS you..!!!

Discussion

19306.	What is the value of c, √3x=y
Answer» ANSWER: I have been WORKING on the answer

19306.

What is the value of c, √3x=y

Answer»

ANSWER:

I have been WORKING on the answer

Discussion

19307.	व्हाट इज द सरकम्फ्रेंस ऑफ 5.7 सेंटीमीटर रेडियस
Answer» 2 PIE R is for 2×22/7×5.7

Discussion

19308.	If alpha be a root of the equation, 4x square + 2 x square- 1 =0 . Prove that-2 alpha square - 2 alpha square- 2 alpha is the other root.
Answer» ANSWER: Answer for your question is in the IMAGE below... PLEASE MARK me as BRANLIEST

19308.

If alpha be a root of the equation, 4x square + 2 x square- 1 =0 . Prove that-2 alpha square - 2 alpha square- 2 alpha is the other root.

Answer»

ANSWER:

Answer for your question is in the IMAGE below...

PLEASE MARK me as BRANLIEST

Discussion

19309.	Please give me some information about heron
Answer» $\text{[math]}$ Ur answer :- The herons are long-legged freshwater and coastal birds in the family Ardeidae, with 64 recognised species, some of which are referred to as egrets or bitterns rather than herons. Members of the genera Botaurus and Ixobrychus are referred to as bitterns, and, together with the ZIGZAG heron, or zigzag bittern, in the monotypic genus Zebrilus, form a monophyletic group within the Ardeidae. Egrets are not a biologically distinct group from the herons, and TEND to be named differently because they are mainly WHITE or have decorative plumes in breeding plumage. Herons, by evolutionary adaptation, have long beaks.The classification of the individual heron/egret species is fraught with difficulty, and no clear consensus exists about the correct placement of many species into either of the two major genera, Ardea and Egretta. Similarly, the relationships of the genera in the family are not completely resolved. However, one species formerly considered to CONSTITUTE a separate monotypic family, the Cochlearidae or the boat-billed heron, is now regarded as a member of the Ardeidae. Although herons resemble birds in some other families, such as the storks, ibises, spoonbills, and cranes, they differ from these in flying with their necks retracted, not outstretched. They are also one of the bird groups that have powder down. Some members of this group nest colonially in trees, while others, notably the bitterns, use reed BEDS. A group of them is called a "siege. hope it helps you ❤️✌️ mark as brainlinest ❤️✌️

19309.

Please give me some information about heron

Answer»

$\text{[math]}$

Ur answer :-

The herons are long-legged freshwater and coastal birds in the family Ardeidae, with 64 recognised species, some of which are referred to as egrets or bitterns rather than herons. Members of the genera Botaurus and Ixobrychus are referred to as bitterns, and, together with the ZIGZAG heron, or zigzag bittern, in the monotypic genus Zebrilus, form a monophyletic group within the Ardeidae. Egrets are not a biologically distinct group from the herons, and TEND to be named differently because they are mainly WHITE or have decorative plumes in breeding plumage. Herons, by evolutionary adaptation, have long beaks.The classification of the individual heron/egret species is fraught with difficulty, and no clear consensus exists about the correct placement of many species into either of the two major genera, Ardea and Egretta. Similarly, the relationships of the genera in the family are not completely resolved. However, one species formerly considered to CONSTITUTE a separate monotypic family, the Cochlearidae or the boat-billed heron, is now regarded as a member of the Ardeidae.

Although herons resemble birds in some other families, such as the storks, ibises, spoonbills, and cranes, they differ from these in flying with their necks retracted, not outstretched. They are also one of the bird groups that have powder down. Some members of this group nest colonially in trees, while others, notably the bitterns, use reed BEDS. A group of them is called a "siege.

hope it helps you ❤️✌️

mark as brainlinest ❤️✌️

Discussion

19310.	Find two different solutions of the equation 2x + 6y + 1 = 0 and check whether (-3, 0) is a solution of the equation.
Answer» Answer: Class IX Math NCERT Solution for Linear Equations in Two VARIABLES ... (V) 2x = –5y (vi) 3x + 2 = 0 (vii) y – 2 = 0 (viii) 5 = 2x. Sol: (i) We ... Comparing with ax + bx + c = 0, we get a = 1, b = – 3 and ...

19310.

Find two different solutions of the equation 2x + 6y + 1 = 0 and check whether (-3, 0) is a solution of the equation.

Answer»

Answer:

Class IX Math NCERT Solution for Linear Equations in Two VARIABLES ... (V) 2x = –5y (vi) 3x + 2 = 0 (vii) y – 2 = 0 (viii) 5 = 2x. Sol: (i) We ... Comparing with ax + bx + c = 0, we get a = 1, b = – 3 and ...

Discussion

19311.	5.x3-9y3-3xy(x-y) का गुणनखण्ड निकालें।
Answer» Step-by-step explanation: ((x3)-(9•(y3))-3xy•(X-y) (x3) - 32y3) - 3xy • (x - y) x3-3x2y+3xy2-9y3 is not a PERFECT cube यह समीकरण x^3 -y^3-3xy(x-y) पर आधारित सूत्र लगा कर हल होगा परन्तु सूत्र नहीं बन पा रहा है। अत : कृप्या सवाल जाँच लें। धन्यवाद। *MARK* ME AS *BRAINLIEST.... FOLLOW* ME...

19311.

5.x3-9y3-3xy(x-y) का गुणनखण्ड निकालें।

Answer»

Step-by-step explanation:

((x3)-(9•(y3))-3xy•(X-y)

(x3) - 32y3) - 3xy • (x - y)

x3-3x2y+3xy2-9y3 is not a PERFECT cube

यह समीकरण x^3 -y^3-3xy(x-y) पर आधारित सूत्र लगा कर हल होगा परन्तु सूत्र नहीं बन पा रहा है। अत : कृप्या सवाल जाँच लें।

धन्यवाद।

MARK ME AS BRAINLIEST....

FOLLOW ME...

Discussion

19312.	Calculate the length of PR.07. The radius of a circle is 26 cm and the length of one of its chords is 48 cm. Find the distance of the chordfrom the centres.the value of : cosec + sec ,
Answer» ANSWER: s sseewww sssss w sssss eeedfg g g g g g f f f g fgg g f f f f f t t f f f ff f f t f t t f

19312.

Calculate the length of PR.07. The radius of a circle is 26 cm and the length of one of its chords is 48 cm. Find the distance of the chordfrom the centres.the value of : cosec + sec ,

Answer»

ANSWER:

s

sseewww

sssss
w
sssss
eeedfg
g
g
g
g
g

f

g

fgg

g

f

t

t
f
f
f
ff
f
f
t
f
t
t
f

Discussion

19313.	Sum of series 1+2+3+.....+n is. n (n+1)/2 ( b ) n (n+1)(c) (n+1)(n+2)/2 (d) none of these solutions
Answer» Answer: $\frac{n(n + 1)}{2}$ Step-by-step explanation: The SUM of $1 + 2 + 3 + ... + n = \frac{n(n + 1)}{2}$ It can be derived by USING the sum of ARITHMETIC Progression formula.

19313.

Sum of series 1+2+3+.....+n is. n (n+1)/2 ( b ) n (n+1)(c) (n+1)(n+2)/2 (d) none of these solutions

Answer»

Answer:

$\frac{n(n + 1)}{2}$

Step-by-step explanation:

The SUM of

$1 + 2 + 3 + ... + n = \frac{n(n + 1)}{2}$

It can be derived by USING the sum of ARITHMETIC Progression formula.

Discussion

19314.	(-51)/68hgyg7gug6tgyg67gyy
Answer» ANSWER: what do U ACTUALLY MEAN ...

19314.

(-51)/68hgyg7gug6tgyg67gyy

Answer»

ANSWER:

what do U ACTUALLY MEAN

...

Discussion

19315.	1/2 7/9 Find the closure property
Answer» 7/9 1/2 hope this HELPS you PLEASE MARK the BRAINLIEST

19315.

1/2 7/9 Find the closure property

Answer»

7/9 1/2

hope this HELPS you PLEASE MARK the BRAINLIEST

Discussion

19316.	2x+3y=7(a+b)x+(2a-b)y=21
Answer» ANSWER: where is the QUESTION what I have to FIND in this

19316.

2x+3y=7(a+b)x+(2a-b)y=21

Answer»

ANSWER:

where is the QUESTION what I have to FIND in this

Discussion

19317.	Cosx+(2+underroot 3)sinx=1 .find general solution
Answer» ANSWER: puz7pzu pux704s7gxjv PUZZLE 0s8co

19317.

Cosx+(2+underroot 3)sinx=1 .find general solution

Answer»

ANSWER:

puz7pzu pux704s7gxjv PUZZLE 0s8co

Discussion

19318.	Find the zeroes of polynomials of quadratic polynomials is x2-2x-8
Answer» Step-by-step EXPLANATION: x2-2x-8=0 x2-2x+4x-8=0 X(x-2)+4(x-2) (x-2)&(x+4) THEREFORE ZEROES are x=2and -4

19318.

Find the zeroes of polynomials of quadratic polynomials is x2-2x-8

Answer»

Step-by-step EXPLANATION:

x2-2x-8=0

x2-2x+4x-8=0

X(x-2)+4(x-2)

(x-2)&(x+4)

THEREFORE ZEROES are x=2and -4

Discussion

19319.	The nth term of an AP is given by a n = 3+4n the common difference is
Answer» ANSWER: common difference=4 Step-by-step explanation: a n=3+4n A0=3+4(0)=3 A1=3+4(1)=7 A2=3+4(2)=11 A3=3+4(3)=15 d=a2-a1=7-3=4 d=a3-a2=11-7=4

19319.

The nth term of an AP is given by a n = 3+4n the common difference is

Answer»

ANSWER:

common difference=4

Step-by-step explanation:

a n=3+4n

A0=3+4(0)=3

A1=3+4(1)=7

A2=3+4(2)=11

A3=3+4(3)=15

d=a2-a1=7-3=4

d=a3-a2=11-7=4

Discussion

19320.	A cone is 8cm high and its vertical angle is 62 deg. find the diameter of its base
Answer» ANSWER: The answer is approximately around 26cm. Step-by-step explanation: Height of the cone =8cm. Vertical ANGLE =62° Then angle on each side of the height I=62°/2=31°. Let the DIAMETER of the base be 2r. Tan theta =Height / base=>tan31°=8/r=>0.6=8/r =>8/0.6=r=>13.2~13. Then d=2r=2×13=26cm approximately.

19320.

A cone is 8cm high and its vertical angle is 62 deg. find the diameter of its base

Answer»

ANSWER:

The answer is approximately around 26cm.

Step-by-step explanation:

Height of the cone =8cm.

Vertical ANGLE =62°

Then angle on each side of the height I=62°/2=31°.

Let the DIAMETER of the base be 2r.

Tan theta =Height / base=>tan31°=8/r=>0.6=8/r

=>8/0.6=r=>13.2~13.

Then d=2r=2×13=26cm approximately.

Discussion

19321.	The area of a traingle with vertices (6,-3),(3,k) and (-7,7)is 15 sq.units.find the value of k
Answer» Answer: The value of K is 21/13units or -3 UNITS. Step-by-step explanation: Area of the triangle =+- 15 sq units. =>1/2[X1(y2-Y3)+X2(y3-Y1)+x3(y1-y2)]=+/-15squnits. Put the corresponding value x1,x2,x3 and y1,y2,y3. and solve it. You will get k=21/13 or -3 units.

19321.

The area of a traingle with vertices (6,-3),(3,k) and (-7,7)is 15 sq.units.find the value of k

Answer»

Answer:

The value of K is 21/13units or -3 UNITS.

Step-by-step explanation:

Area of the triangle =+- 15 sq units.

=>1/2[X1(y2-Y3)+X2(y3-Y1)+x3(y1-y2)]=+/-15squnits.

Put the corresponding value x1,x2,x3 and y1,y2,y3. and solve it.

You will get k=21/13 or -3 units.

Discussion

19322.	Write the solution in each of the following (1) x + 2y = 2 ; 3x + 3y = 5
Answer» ANSWER: x+2y=2 x=2-2y 3x+3y=5 3(2-2y) +3y=5 6-6y+3y=5 3y=1 y=1/3 from (II) 3x+3×1/3=5 3x+1=5 3x=4 x=4/3

19322.

Write the solution in each of the following (1) x + 2y = 2 ; 3x + 3y = 5

Answer»

ANSWER:

x+2y=2

x=2-2y

3x+3y=5

3(2-2y) +3y=5

6-6y+3y=5

3y=1

y=1/3

from (II)

3x+3×1/3=5

3x+1=5

3x=4

x=4/3

Discussion

19323.	The LCM of 8/35 - 6/49?
Answer» SORRY don’t KNOW the ANSWER

Discussion

19324.	3 sin square theta-sin theta-4=0
Answer» Answer: 4=0 THETA SQUARE..........,.,.

19324.

3 sin square theta-sin theta-4=0

Answer»

Answer:

4=0 THETA SQUARE..........,.,.

Discussion

19325.	If ax^2 + bx +c = a ( x^2 + p ^2 -2 xp )then the relation among a,b,c would be pls solve if u can if u can't don't reply pls... and solve with steps ....
Answer» Answer: the relationship of a B C is that they all are MULTIPLYING some no.. hope it HELPS u stay safe

19325.

If ax^2 + bx +c = a ( x^2 + p ^2 -2 xp )then the relation among a,b,c would be pls solve if u can if u can't don't reply pls... and solve with steps ....

Answer»

Answer:

the relationship of a B C is that they all are MULTIPLYING some no..

hope it HELPS u

stay safe

Discussion

19326.	Which of the following are perfect cubes (a)=730
Answer» 730 is not a PERFECT cube i think so plz mark as branliest answer

Discussion

19327.	Find the co-ordinates of the points of trisection of the line segment joining the points A(5,-3) & B(2,-9)Please answer it....
Answer» <P>ANSWER: Suppose Points P and Q TRISECT the line segment JOINING the pointsA(4,1) and B(2,3) This means, P divides AB in the ratio 1:2 and Q divides it in the ratio 2:1 I had jumped only the multiplication step hope it's helpful... plz mark it as the brainliest answer...

19327.

Find the co-ordinates of the points of trisection of the line segment joining the points A(5,-3) & B(2,-9)Please answer it....

Answer»

<P>ANSWER:

Suppose Points P and Q TRISECT the line segment JOINING the pointsA(4,1) and B(2,3)

This means, P divides AB in the ratio 1:2 and Q divides it in the ratio 2:1

I had jumped only the multiplication step

hope it's helpful...

plz mark it as the brainliest answer...

Discussion

19328.	What is the reason for adopting contrceptive method
Answer» ANSWER: REASON is not to make the partner PRAGNENT and have fun

19328.

What is the reason for adopting contrceptive method

Answer»

ANSWER:

REASON is not to make the partner PRAGNENT and have fun

Discussion

19329.	Two metallic cube of 9cm each are jouned side to side. Find volume and lateral surface area of new figure formed.
Answer» Step-by-step explanation: the NEW figure that is cuboid so the lenght= 29=18cm and height and breadht are 9 cm so volume of cuboid=l b * h = 1899 =1458cm^3 and the lateral SURFACE AREA =2(l+b)h =2(18+9)9 =2279 =486cm^2

19329.

Two metallic cube of 9cm each are jouned side to side. Find volume and lateral surface area of new figure formed.

Answer»

Step-by-step explanation:

the NEW figure that is cuboid

so the lenght= 2*9=18cm

and height and breadht are 9 cm

so volume of cuboid=l * b * h

= 18*9*9

=1458cm^3

and the lateral SURFACE AREA =2(l+b)*h

=2(18+9)*9

=2*27*9

=486cm^2

Discussion

19330.	Very important please answer
Answer» $\boxed{\huge{\red{Explaination}}}$ __________________________ $\huge{\blue{\underline{Given:}}}$ $x + \frac{1}{x} = 2 \\ {x}^{2} + 1 = 2x \\ {x}^{2} - 2x + 1 = 0 \\ {x}^{2} - x - x + 1 = 0 \\ x(x - 1) - 1(x - 1) = 0 \\ x = 1 \\$ $\huge{\underline{To\:find:}}$ $= {x}^{4} + \frac{1}{ {x}^{4} } \\ = 1 + \frac{1}{1} \\ = 1 + 1 \\ = 2$ _________________________ $\boxed{\huge{\red{Hope\:it\:helps}}}$ $\boxed{\huge{\green{Mark\:as\:Brainiliest}}}$ $\boxed{\huge{\blue{@Devanshu1973}}}$

19330.

Very important please answer

Answer»

$\boxed{\huge{\red{Explaination}}}$

__________________________

$\huge{\blue{\underline{Given:}}}$

$x + \frac{1}{x} = 2 \\ {x}^{2} + 1 = 2x \\ {x}^{2} - 2x + 1 = 0 \\ {x}^{2} - x - x + 1 = 0 \\ x(x - 1) - 1(x - 1) = 0 \\ x = 1 \\$

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

$= {x}^{4} + \frac{1}{ {x}^{4} } \\ = 1 + \frac{1}{1} \\ = 1 + 1 \\ = 2$

_________________________

$\boxed{\huge{\red{Hope\:it\:helps}}}$

$\boxed{\huge{\green{Mark\:as\:Brainiliest}}}$

$\boxed{\huge{\blue{@Devanshu1973}}}$

Discussion

19331.	Solve graphically and state whether the equations have unique solution or not 2x+y=6 and x-y=3 ?
Answer» ANSWER: Not any UNIQUE SOLUTION

19331.

Solve graphically and state whether the equations have unique solution or not 2x+y=6 and x-y=3 ?

Answer»

ANSWER:

Not any UNIQUE SOLUTION

Discussion

19332.	What sum invested for 15 years compounded half-yearly at the rate 8% p.a. willamount to 140608?guys pls help I will mark u as brainliest sure
Answer» ANSWER: taking p as PRINCIPLE or sum of money. 140608 = P (1 + 8/100)^7.5 use this FORMULA

19332.

What sum invested for 15 years compounded half-yearly at the rate 8% p.a. willamount to 140608?guys pls help I will mark u as brainliest sure

Answer»

ANSWER:

taking p as PRINCIPLE or sum of money.

140608 = P (1 + 8/100)^7.5

use this FORMULA

Discussion

19333.	5. We say that a positive integer is quiteprime if it is not divisible by 2, 3, or 5. How manyquiteprime positive integers are there less than 100? less than 1000? A positive integer isvery quiteprime if it is not divisible by any prime less than 15. How many very quiteprimepositive integers are there less than 90000? Without giving an exact answer, can you sayapproximately how many very quiteprime positive integers are less than 1010? less than 10100?Explain your reasoning as carefully as you can.
Answer» Answer: 2,3,5have 2 factors not less than 100 or1000 not true no it actually wrong many are there QUITE PRIME

19333.

5. We say that a positive integer is quiteprime if it is not divisible by 2, 3, or 5. How manyquiteprime positive integers are there less than 100? less than 1000? A positive integer isvery quiteprime if it is not divisible by any prime less than 15. How many very quiteprimepositive integers are there less than 90000? Without giving an exact answer, can you sayapproximately how many very quiteprime positive integers are less than 1010? less than 10100?Explain your reasoning as carefully as you can.

Answer»

Answer:

2,3,5have 2 factors

not less than 100 or1000

not true

no it actually wrong

many are there QUITE PRIME

Discussion

19334.	Find the rank of the word IITJEE using permutation and combination......
Answer» ANSWER: Z,E,N,I,T,H answer is-E,H,I,N,T,z

19334.

Find the rank of the word IITJEE using permutation and combination......

Answer»

ANSWER:

Z,E,N,I,T,H

answer is-E,H,I,N,T,z

Discussion

19335.	Prove that tan cube theta minus one upon tan theta minus 1 is equal to sec square theta + tan theta
Answer» ANSWER: HENCE Proved Step-by-step EXPLANATION: = $\frac{tan^{3} ∅-1}{tan\alpha -1}$

19335.

Prove that tan cube theta minus one upon tan theta minus 1 is equal to sec square theta + tan theta

Answer»

ANSWER:

HENCE Proved

Step-by-step EXPLANATION:

= $\frac{tan^{3} ∅-1}{tan\alpha -1}$

Discussion

19336.	(-5x + 2y + z)^2 please tell me it's answer
Answer» Step-by-step EXPLANATION: ${(-5x+2y+z)}^{2} \\ = {(-5x)}^{2} + {(2y)}^{2} + {(z)}^{2} +2((-5x \times 2y) + 2y \times z + z \times ( - 5y)) \\ = 25 {x}^{2} + 4 {y}^{2} + {z}^{2} + 2(( - 10xy) + 2yz + ( - 5xz)) \\ = 25 {x}^{2} + 4 {y}^{2} + {z}^{2} + 2(2yz - 10xy - 5xz) \\ = 25 {x}^{2} +4 {y}^{2} + {z}^{2} + 4yz - 20xy - 10xz \\$

19336.

(-5x + 2y + z)^2 please tell me it's answer

Answer»

Step-by-step EXPLANATION:

${(-5x+2y+z)}^{2} \\ = {(-5x)}^{2} + {(2y)}^{2} + {(z)}^{2} +2((-5x \times 2y) + 2y \times z + z \times ( - 5y)) \\ = 25 {x}^{2} + 4 {y}^{2} + {z}^{2} + 2(( - 10xy) + 2yz + ( - 5xz)) \\ = 25 {x}^{2} + 4 {y}^{2} + {z}^{2} + 2(2yz - 10xy - 5xz) \\ = 25 {x}^{2} +4 {y}^{2} + {z}^{2} + 4yz - 20xy - 10xz \\$

Discussion

19337.	IF AABC ~ APQR such that A = 30° and R = 65° then find [B..
Answer» be CLEAR with your QUESTION....

19337.

IF AABC ~ APQR such that A = 30° and R = 65° then find [B..

Answer»

be CLEAR with your QUESTION....

Discussion

19338.	-There are 10 boxes on table . Ramu places10 marbles in first box. 7marbles insecond box of 10 marbles o in third box & 10 marbles in third box and so onFind total no. of marbles in all boxes.
Answer» Step-by-step explanation: 10+7+10+10=37 sorry I didn't GET this ANSWER

19338.

-There are 10 boxes on table . Ramu places10 marbles in first box. 7marbles insecond box of 10 marbles o in third box & 10 marbles in third box and so onFind total no. of marbles in all boxes.

Answer»

Step-by-step explanation:

10+7+10+10=37

sorry I didn't GET this ANSWER

Discussion

19339.	If y/4-1/2=y/3+1 find the value of y
Answer» ANSWER: The answer is 18. I HOPE it is a RIGHT answer

19339.

If y/4-1/2=y/3+1 find the value of y

Answer»

ANSWER:

The answer is 18.

I HOPE it is a RIGHT answer

Discussion

19340.	② f(x) = Jset 3-2-x²-1Betoatx=112e al
Answer»

Discussion

19341.	Find equation of line passing through p(-5,1) and parallel to A(7,-1) B(0,3)
Answer» HOPE this ANSWER will be HELPFUL ♥️♥️

Discussion

19342.	Draw the graph of solution set of linear inequalities : 2x + 3y \leqslant 6, x + 4y \leqslant 4 x 20, y 20.
Answer» ANSWER: HELPFUL I guess Step-by-step EXPLANATION: HOPE it helps

19342.

Draw the graph of solution set of linear inequalities : 2x + 3y \leqslant 6, x + 4y \leqslant 4 x 20, y 20.

Answer»

ANSWER:

HELPFUL I guess

Step-by-step EXPLANATION:

HOPE it helps

Discussion

19343.	In trapezium ABCD as shown AB//DC, AD=DC=BC=20cm and(ii) distance btw AB and DC
Answer» ANSWER: MARK AS BRAINLIST ANSWER

19343.

In trapezium ABCD as shown AB//DC, AD=DC=BC=20cm and(ii) distance btw AB and DC

Answer»

ANSWER:

MARK AS BRAINLIST ANSWER

Discussion

19344.	If a-1/a=8,find the value of a+1/a
Answer» Answer: 2/21 Step-by-step EXPLANATION: a-1=8a -1=7a a=-1/7 substitute a VALUE in a+1/a (-1/7+1)/9 =2/21

19344.

If a-1/a=8,find the value of a+1/a

Answer»

Answer:

2/21

Step-by-step EXPLANATION:

a-1=8*a

-1=7*a

a=-1/7

substitute a VALUE in a+1/a

(-1/7+1)/9

=2/21

Discussion

19345.	Match the followingPlease answer me as fast as you can all the following questions in photo
Answer» Answer: (1) Cardio vascular fitness - (e) Aerobics (2) - (a) (3) - (B) (4) - (c) (5) - (d) Hope it HELPS.........

19345.

Match the followingPlease answer me as fast as you can all the following questions in photo

Answer»

Answer:

(1) Cardio vascular fitness - (e) Aerobics

(2) - (a)

(3) - (B)

(4) - (c)

(5) - (d)

Hope it HELPS.........

Discussion

19346.	After 11 years, Arjun will be three times his present age. how old is Arjun now
Answer» ANSWER: LET the present AGE be X X+11=3X 11=2X X=11/2=5.5years hope this helps if so then don't FORGET to thank and mark as BRAINLIEST.... :)

19346.

After 11 years, Arjun will be three times his present age. how old is Arjun now

Answer»

ANSWER:

LET the present AGE be X

X+11=3X

11=2X

X=11/2=5.5years

hope this helps if so then don't FORGET to thank and mark as BRAINLIEST.... :)

Discussion

19347.	Qustion no IIPlease give me the answer of it
Answer» ANSWER: where is your QUESTION??????? MATE

19347.

Qustion no IIPlease give me the answer of it

Answer»

ANSWER:

where is your QUESTION??????? MATE

Discussion

19348.	A two digit number is written atrandom (digit at 10s place is non-zero). The probability that thenumber will be even but smallerthan 40 is
Answer» $\LARGE\underline\mathfrak{QueStion:}$ ᴀ ᴛᴡᴏ ᴅɪɢɪᴛ ɴᴜᴍʙᴇʀ ɪs ᴡʀɪᴛᴛᴇɴ ᴀᴛ ʀᴀɴᴅᴏᴍ (ᴅɪɢɪᴛ ᴀᴛ 10s ᴘʟᴀᴄᴇ ɪs ɴᴏɴ ᴢᴇʀᴏ).ᴛʜᴇ ᴘʀᴏʙᴀʙɪʟɪᴛʏ ᴛʜᴀᴛ ᴛʜᴇ ɴᴜᴍʙᴇʀ ᴡɪʟʟ ʙᴇ ᴇᴠᴇɴ ʙɪᴛ sᴍᴀʟʟᴇʀ ᴛʜᴀɴ 40 ɪs? $\LARGE\underline\mathfrak{AnSwEr:}$ ᴡᴇ ᴀʀᴇ ɢɪᴠᴇɴ ᴛʜᴀᴛ ᴛʜᴇʀᴇ ᴀʀᴇ ᴛᴏᴛᴀʟ 90 ɴᴜᴍʙᴇʀs, [ʜᴏᴡ :- 9 ᴘᴏssɪʙʟᴇ ᴅɪɢɪᴛs ɪɴ sᴇᴄᴏɴᴅ sʟᴏᴛ × 10 ᴅɪɢɪᴛs ɪɴ sʟᴏᴛ = ᴛᴏᴛᴀʟ 90 ɴᴜᴍʙᴇʀs] ᴀɴᴅ ᴡᴇ ʜᴀᴠᴇ ᴛᴏ ғɪɴᴅ ᴛʜᴇ ᴘʀᴏʙᴀʙɪʟɪᴛʏ ᴏғ ᴀ ᴛᴡᴏ ᴅɪɢɪᴛ ɴᴜᴍʙᴇʀ ᴛʜᴀᴛ ɪs ᴄʜᴏsᴇɴ ᴀᴛ ʀᴀɴᴅᴏᴍ ᴀʟsᴏ, ᴛʜᴇ ᴛʜᴇ ᴛᴇɴs ᴘʟᴀᴄᴇ ᴅɪɢɪᴛ ᴏғ ᴛʜᴀᴛ ɴᴜᴍʙᴇʀ ɪs ɴᴏɴ ᴢᴇʀᴏ[ ᴛᴇɴ's ᴘʟᴀᴄᴇ ᴅɪɢɪᴛ ≠ 0 ] sᴏ ʟᴇᴛ's ʙᴇɢɪɴ; $\LARGE\underline\mathfrak{Step \: by \: step \: explanation:}$ ғᴏʀᴍᴜʟᴀ ᴜsᴇᴅ; ${\boxed{\sf \orange{ P(E) \: = \: \frac{ No. \: of \: favourable \: outcomes}{No. \: of \: total \: outcomes} }}}$ ɴᴏᴡ,ᴛᴏᴛᴀʟ ᴏᴜᴛᴄᴏᴍᴇs:- ᴡᴇ ʜᴀᴠᴇ ᴛᴏ ғɪɴᴅ ᴘʀᴏʙᴀʙɪʟɪᴛʏ ғᴏʀ 90ᴏᴜᴛᴄᴏᴍᴇs ᴀs ɴᴜᴍʙᴇʀs,sᴏ ᴡᴇ ᴛᴀᴋᴇ ɴᴏ. ᴏғ ᴛᴏᴛᴀʟ ᴏᴜᴛᴄᴏᴍᴇs = 90 ᴀʟsᴏ,ᴘᴏssɪʙʟᴇ ᴏᴜᴛᴄᴏᴍᴇs :- ᴛʜᴇ ᴘᴏɪɴᴛ ᴛʜᴀᴛ sʜᴏᴜʟᴅ ʙᴇ ɴᴏᴛɪᴄᴇᴅ ʜᴇʀᴇ ; ᴡᴇ ʜᴀᴠᴇ ᴛᴏ ғɪɴᴅ ᴘʀᴏʙᴀʙɪʟɪᴛʏ ᴏғ ɴᴜᴍʙᴇʀ ʟᴇss ᴛʜᴀɴ 40,ᴀᴍᴏɴɢ 40 ɴᴜᴍʙᴇʀs ᴛʜᴇʀᴇ ᴀʀᴇ ᴏɴᴇ's ᴀs ᴡᴇʟʟ ᴀs ᴛᴇɴ's ᴘʟᴀᴄᴇ ᴅɪɢɪᴛs ɴᴜᴍʙᴇʀs sᴏ,ᴡᴇ ᴛᴀᴋᴇ ᴅɪғғᴇʀᴇɴᴄᴇ ᴏғ ᴀʟʟ ᴛʜᴇsᴇ ᴀɴᴅ ᴡᴇ ɢᴇᴛ $\mapsto$ $\normalsize\tt\ 40 \: - \: 9 \: - \: 1 \: = \: 30$ ᴇᴠᴇɴ ᴏᴜᴛᴄᴏᴍᴇs; $\mapsto$ $\normalsize\tt\frac{30}{2} \: = \: 15$ ɴᴏᴡ; ɴᴜᴍʙᴇʀ ᴏғ ᴘᴏssɪʙʟᴇ ᴏᴜᴛᴄᴏᴍᴇs = 15 ᴀʟsᴏ, ʜᴇʀᴇ ᴡᴇ ᴛᴀᴋᴇ "ᴇ" ᴀs ᴇᴠᴇɴᴛ ᴀɴᴅ ᴛʜᴇ ᴇᴠᴇɴᴛ = ᴄʜᴏᴏsɪɴɢ ᴏғ ᴀ ᴛᴡᴏ ᴅɪɢɪᴛ ᴀᴛ ʀᴀɴᴅᴏᴍ. ʏᴏᴜʀ ᴀɴsᴡᴇʀ,ᴀᴄᴄᴏʀᴅɪɴɢ ᴛᴏ ɢɪᴠᴇɴ ; $\large\tt\ P(E) \: = \: \frac{15}{90} \: = \: \frac{1}{2}$ ${\boxed{\sf \blue{P(E) \: = \: \frac{1}{6} }}}$

19348.

A two digit number is written atrandom (digit at 10s place is non-zero). The probability that thenumber will be even but smallerthan 40 is

Answer»

$\LARGE\underline\mathfrak{QueStion:}$

ᴀ ᴛᴡᴏ ᴅɪɢɪᴛ ɴᴜᴍʙᴇʀ ɪs ᴡʀɪᴛᴛᴇɴ ᴀᴛ ʀᴀɴᴅᴏᴍ (ᴅɪɢɪᴛ ᴀᴛ 10s ᴘʟᴀᴄᴇ ɪs ɴᴏɴ ᴢᴇʀᴏ).ᴛʜᴇ ᴘʀᴏʙᴀʙɪʟɪᴛʏ ᴛʜᴀᴛ ᴛʜᴇ ɴᴜᴍʙᴇʀ ᴡɪʟʟ ʙᴇ ᴇᴠᴇɴ ʙɪᴛ sᴍᴀʟʟᴇʀ ᴛʜᴀɴ 40 ɪs?

$\LARGE\underline\mathfrak{AnSwEr:}$

ᴡᴇ ᴀʀᴇ ɢɪᴠᴇɴ ᴛʜᴀᴛ ᴛʜᴇʀᴇ ᴀʀᴇ ᴛᴏᴛᴀʟ 90 ɴᴜᴍʙᴇʀs,

[ʜᴏᴡ :- 9 ᴘᴏssɪʙʟᴇ ᴅɪɢɪᴛs ɪɴ sᴇᴄᴏɴᴅ sʟᴏᴛ × 10 ᴅɪɢɪᴛs ɪɴ sʟᴏᴛ = ᴛᴏᴛᴀʟ 90 ɴᴜᴍʙᴇʀs]

ᴀɴᴅ ᴡᴇ ʜᴀᴠᴇ ᴛᴏ ғɪɴᴅ ᴛʜᴇ ᴘʀᴏʙᴀʙɪʟɪᴛʏ ᴏғ ᴀ ᴛᴡᴏ ᴅɪɢɪᴛ ɴᴜᴍʙᴇʀ ᴛʜᴀᴛ ɪs ᴄʜᴏsᴇɴ ᴀᴛ ʀᴀɴᴅᴏᴍ

ᴀʟsᴏ,

ᴛʜᴇ ᴛʜᴇ ᴛᴇɴs ᴘʟᴀᴄᴇ ᴅɪɢɪᴛ ᴏғ ᴛʜᴀᴛ ɴᴜᴍʙᴇʀ ɪs ɴᴏɴ ᴢᴇʀᴏ[ ᴛᴇɴ's ᴘʟᴀᴄᴇ ᴅɪɢɪᴛ ≠ 0 ]

sᴏ ʟᴇᴛ's ʙᴇɢɪɴ;

$\LARGE\underline\mathfrak{Step \: by \: step \: explanation:}$

ғᴏʀᴍᴜʟᴀ ᴜsᴇᴅ;

${\boxed{\sf \orange{ P(E) \: = \: \frac{ No. \: of \: favourable \: outcomes}{No. \: of \: total \: outcomes} }}}$

ɴᴏᴡ,ᴛᴏᴛᴀʟ ᴏᴜᴛᴄᴏᴍᴇs:-

ᴡᴇ ʜᴀᴠᴇ ᴛᴏ ғɪɴᴅ ᴘʀᴏʙᴀʙɪʟɪᴛʏ ғᴏʀ 90ᴏᴜᴛᴄᴏᴍᴇs ᴀs ɴᴜᴍʙᴇʀs,sᴏ ᴡᴇ ᴛᴀᴋᴇ

ɴᴏ. ᴏғ ᴛᴏᴛᴀʟ ᴏᴜᴛᴄᴏᴍᴇs = 90

ᴀʟsᴏ,ᴘᴏssɪʙʟᴇ ᴏᴜᴛᴄᴏᴍᴇs :-

ᴛʜᴇ ᴘᴏɪɴᴛ ᴛʜᴀᴛ sʜᴏᴜʟᴅ ʙᴇ ɴᴏᴛɪᴄᴇᴅ ʜᴇʀᴇ ;

ᴡᴇ ʜᴀᴠᴇ ᴛᴏ ғɪɴᴅ ᴘʀᴏʙᴀʙɪʟɪᴛʏ ᴏғ ɴᴜᴍʙᴇʀ ʟᴇss ᴛʜᴀɴ 40,ᴀᴍᴏɴɢ 40 ɴᴜᴍʙᴇʀs ᴛʜᴇʀᴇ ᴀʀᴇ ᴏɴᴇ's ᴀs ᴡᴇʟʟ ᴀs ᴛᴇɴ's ᴘʟᴀᴄᴇ ᴅɪɢɪᴛs ɴᴜᴍʙᴇʀs

sᴏ,ᴡᴇ ᴛᴀᴋᴇ ᴅɪғғᴇʀᴇɴᴄᴇ ᴏғ ᴀʟʟ ᴛʜᴇsᴇ ᴀɴᴅ ᴡᴇ ɢᴇᴛ

$\mapsto$ $\normalsize\tt\ 40 \: - \: 9 \: - \: 1 \: = \: 30$

ᴇᴠᴇɴ ᴏᴜᴛᴄᴏᴍᴇs;

$\mapsto$ $\normalsize\tt\frac{30}{2} \: = \: 15$

ɴᴏᴡ;

ɴᴜᴍʙᴇʀ ᴏғ ᴘᴏssɪʙʟᴇ ᴏᴜᴛᴄᴏᴍᴇs = 15

ᴀʟsᴏ,

ʜᴇʀᴇ ᴡᴇ ᴛᴀᴋᴇ "ᴇ" ᴀs ᴇᴠᴇɴᴛ ᴀɴᴅ ᴛʜᴇ

ᴇᴠᴇɴᴛ = ᴄʜᴏᴏsɪɴɢ ᴏғ ᴀ ᴛᴡᴏ ᴅɪɢɪᴛ ᴀᴛ ʀᴀɴᴅᴏᴍ.

ʏᴏᴜʀ ᴀɴsᴡᴇʀ,ᴀᴄᴄᴏʀᴅɪɴɢ ᴛᴏ ɢɪᴠᴇɴ ;

$\large\tt\ P(E) \: = \: \frac{15}{90} \: = \: \frac{1}{2}$

${\boxed{\sf \blue{P(E) \: = \: \frac{1}{6} }}}$

Discussion

19349.	The measures of two adjacent angles of a parallelogram are in the ratio 3:2. find the measure of each of the angles of the parallelogram. List any two of its properties.
Answer» ANSWER: ........................

19349.

The measures of two adjacent angles of a parallelogram are in the ratio 3:2. find the measure of each of the angles of the parallelogram. List any two of its properties.

Answer»

ANSWER:

........................

Discussion

19350.	में कितने चतुर्थाश हैं ?
Answer» ANSWER: ...................... XGH

19350.

में कितने चतुर्थाश हैं ?

Answer»

ANSWER:

...................... XGH

Discussion

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hope it's helpful...

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__________________________

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hope this helps if so then don't FORGET to thank and mark as BRAINLIEST.... :)

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What is the reason for adopting contrceptive method

Two metallic cube of 9cm each are jouned side to side. Find volume and lateral surface area of new figure formed.

Very important please answer

Solve graphically and state whether the equations have unique solution or not 2x+y=6 and x-y=3 ?

What sum invested for 15 years compounded half-yearly at the rate 8% p.a. willamount to 140608?guys pls help I will mark u as brainliest sure

Find the rank of the word IITJEE using permutation and combination......

Prove that tan cube theta minus one upon tan theta minus 1 is equal to sec square theta + tan theta

(-5x + 2y + z)^2 please tell me it's answer

IF AABC ~ APQR such that A = 30° and R = 65° then find [B..

-There are 10 boxes on table . Ramu places10 marbles in first box. 7marbles insecond box of 10 marbles o in third box & 10 marbles in third box and so onFind total no. of marbles in all boxes.

If y/4-1/2=y/3+1 find the value of y

② f(x) = Jset 3-2-x²-1Betoatx=112e al

Draw the graph of solution set of linear inequalities : 2x + 3y \leqslant 6, x + 4y \leqslant 4 x 20, y 20.

Match the followingPlease answer me as fast as you can all the following questions in photo

After 11 years, Arjun will be three times his present age. how old is Arjun now

A two digit number is written atrandom (digit at 10s place is non-zero). The probability that thenumber will be even but smallerthan 40 is

The measures of two adjacent angles of a parallelogram are in the ratio 3:2. find the measure of each of the angles of the parallelogram. List any two of its properties.

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