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ANSWER:

x2-2xy+y2+x-2xy+y2

=x2-4xy+2y2+x

=X2+2y2-4xy+x

X2+2y2-4xy+x - (x2-4xy+4y2)

=x2+2y2-4xy+x-x2+4xy-4y2

•+4xy and -4xy will be cancelled

•x2 and -x2 will be cancelled

=2y2+x-4y2

-2y2+x

Step-by-step EXPLANATION:

HOPE it HELPS..

Answer:

10:1

Step-by-step explanation:

1mm=10cm

=6×10

=60

=60/6

=10:1

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ANSWER:

the answer is -130 ....

Answer:

3x^2, 5x^2; 3XY, 4XY

Step-by-step explanation:

3x^2 , 5x^2 are LIKE TERMS; 3xy , 4xy are like terms

BUT DEAR NO NUMBER IS MATCHING

A) 81×81=6561.

B) 64×64=4096.

C) 49×49=2401

D) 36×36=1296.

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iii) 2y³ + y² - 2y - 1 = (2y+1)(y+1)(y-1)

Step-by-step EXPLANATION:

Factorising 2y³+y²-2y-1

= y²(2y+1)-1(2y+1)

=(2y+1)(y²-1)

=(2y+1)(y+1)(y-1)

By ALGEBRAIC IDENTITY:

a²-b²= (a+b)(a-b)*/

Therefore,

2y³+y²-2y-1 = (2y+1)(y+1)(y-1)

Answer:

25th TERM.

Step-by-step explanation:

Here, d = 12

Now, difference = 120

So, difference = 10d.

So, the term is 10 terms AHEAD of the 15TH term. (as in increase of term, the value increases by d each).

Therefore, the term is the 25th term.

34....... iwiwi2i2i2i

Answer:

23xy (7x+18xy)

= (23xy×7x)+(23xy×18xy)

= 161x²y + 414x²y²

ANSWER:

Answer = 0

explanation

-X+(5y-x-5y+2x)

-x+(-x+2x)

-x-x+2x

-2x+2x

0

Answer:

Some RATIONAL numbers are 11 , 10 , 9 , 8 , 7 , 6 , 5 , 4 , 3 , -53 , -35 etc

Step-by-step explanation:

There are infinite rational numbers between 12 and -64

ANSWER:

positive

Step-by-step EXPLANATION:

ANSWER:

Step-by-step explanation:

Just TAKE X=boys

5/6x=girls

X+5/6X=55 u FIND the value of x ....

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ANSWER:

-1/5

Step-by-step explanation:

2/15 - X = 1/3

2/15 - 1/3 = x

LCM is 15, so

2-5/15 = x

-3/15=x

-1/5=x

Hope this HELPS!

Step-by-step explanation:

SEE the PICTURE uploaded...

HOPE it helps!!!

Answer:

3

Step-by-step explanation:

• 280-4=276
• 320-5=315

we have FIND hcf of 276 and 315

315=276×1+39

276=39×7+3

39=3×13+0

: Hcf =3

: greatest NUMBER which DIVIDES 280 and 320 LEAVING remainder as 4 and 5 is 3

ANSWER:

these is not from my CLASS

ANSWER:

false

Step-by-step EXPLANATION:

as 80 RUPEES = 80000

Answer:

0.48

Step-by-step EXPLANATION:

Answer:

106

224

Step-by-step EXPLANATION:

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Answer:

37.5percent

Step-by-step explanation:

3×100/8=37.5

Step-by-step explanation:

Food TEST 2: Protein - Biuret SOLUTION

Biuret solution is used to IDENTIFY the presence of protein. Biuret REAGENT is a blue solution that, when it reacts with protein, will change color to pink-purple.

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Answer:

sixty .THREE .eighty-five .TWO HUNDRED and ONE

Answer:

435

Step-by-step explanation:

2175×145=725×435

your ANSWER is in the above PICTURE HOPE it HELP to you☺️

Verify X + Y = Y + X

X = ( - 3 / 16 )

Y = ( 1/9 )

X + Y = - 3 / 16 + 1 / 9

= -43 / 144

Y + X = 1/9 + ( - 3 / 16 )

= -43 / 144

HENCE , VERIFIED

Step-by-step EXPLANATION:

ajkekwkkkqqkwnwnqjqqkq

ANSWER:

HIGHEST 17

lowest 12

20 RANGE

ANSWER:

Length = 140m

Breadth = 70m

Mark the answer as Brainliest

Step-by-step EXPLANATION:

L= 2 (B)

Perimeter = 420m

∵ Perimeter = 2(L+B)

⇒ 420 = 2 (2B+B)

⇒ 420 = 6B

⇒ Breadth = 420/6 = 70m

∵ Length = 2×Breadth

Length = 2×70 = 140 m

Answer:

5 rounds

Step-by-step EXPLANATION:

because 2km DIVIDE 400 METER is 5 .

Answer:

PLZ MARK me as the brainliest

Step-by-step EXPLANATION:

plz only some REMAINING plz

ANSWER:

COST of a CARPET is 100

so 3 CARPETS cost is 3*100=300

ANSWER:

2x+2+x+2x-7=180 angle SUM property of TRIANGLE

5x-3=180

x=183/5

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Answer:

0.107

....

..... .....

.......

Sum is 821 so the ESTIMATION of 821 to the nearest trn will be 820.

79/46 = 1.71 (APPROX)

Step-by-step explanation:

Let the 1ST integer = x

2nd integer = -25

Sum = 48

Therefore, x+(-25)=48

x-25=48

x = 48+25

x = 113

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Step-by-step explanation:

In other words, 18 can be divided by 1, by itself and at LEAST by 2 and 3. So, 18 is a 'composite NUMBER'. List of PRIME numbers before 18: 2, 3, 5, 7, 11, 13, 17.

ANSWER:

only ONE RIGHT ANGLE a TRIANGLE can have.

Step-by-step explanation:

Curved surface area :

i) h = 30 cm, R = 14 cm

csa = 2πrh

=> 2 x 22/7 x 14 x 30

=> 2640

ii) h = 32 cm, r = 10.5 cm

csa = 2πrh

=> 2 x 22 / 7 x 10.5 x 32

=> 2112

III) h = 35 cm, r = 21 cm

csa = 2πrh

=> 2 x 22 / 7 x 21 x 35

=> 4620

iv) h = 5 cm, r = 35 cm

csa = 2πrh

=> 2 x 22 / 7 x 35 x 5

=> 1100

Identity : (x+a) (x+b)= x²(a+b)x+ab

x = 4x

a = -5

b= -1

(4x-5) (4x-1)

(4X)²-4x-29x+5

16x²- 24X +5

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ANSWER:

z=60

y=90

this is CORRECT answer

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y = 60 BCOZ of alternate angles

and X = y = 60 bcoz of CORRESPONDING angles cuz AB || CD || EF

Hence, x = 60 and y = 60

ANSWER:

ok

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Step-by-step EXPLANATION:

a-b+ab+b-c+BC+c-a+CA

=ab+ bc+ ca

Answer:

A large number of tributaries like ALAKNANDA, Ramganga, Kali, YAMUNA, Gomti, Ghagra, GANDAK, Kosi and SONE, draining 11 states of the country join RIVER Ganga at different confluence points during its journey.