332354 + Interview Questions in Secondary School in Math

1.	Find six rational no between 3&4by using this formula(x+d) (x+d) 2 (x+d) 3 (x+d) 4(x+d) 5 (x+d)*6d= y+x/2my answer is in attachmentplease check it out and tell whether it is correct or not by using this formulahelp my guys if u tried doing this share ur answer with menew method taught by my teacher I didn't found in any net resourcehelp me at least in this please
Answer» Step-by-step explanation: Answer Six rational number between 3 and 4 LET 3=3× 7 7 = 7 21 let 4=4× 7 7 = 7 28 Now 6 rational number between 3 and 4 that is 7 21 and 7 28 are 7 22 , 7 23 , 7 24 , 7 25 , 7 26 , 7 27

1.

Find six rational no between 3&4by using this formula(x+d) (x+d) 2 (x+d) 3 (x+d) 4(x+d) 5 (x+d)*6d= y+x/2my answer is in attachmentplease check it out and tell whether it is correct or not by using this formulahelp my guys if u tried doing this share ur answer with menew method taught by my teacher I didn't found in any net resourcehelp me at least in this please

Answer»

Step-by-step explanation:

Answer

Six rational number between 3 and 4

LET 3=3×

7

=

7

21

let 4=4×

7

=

7

28

Now 6 rational number between 3 and 4 that is

7

21

and

7

28

are

7

22

,

7

23

,

7

24

,

7

25

,

7

26

,

7

27

Discussion

2.	If x=3t³+2t²+6t+5 the value of d²x/dt² will be
Answer» ANSWER: hjfnf sijfjfk ndndmmd member 109383894n njsufh is an 109383894n

2.

If x=3t³+2t²+6t+5 the value of d²x/dt² will be

Answer»

ANSWER:

hjfnf

sijfjfk

ndndmmd

member

109383894n

njsufh is an 109383894n

Discussion

3.	Is it possible to construct a quadrilateral with sides3 cm, 4 cm, 5 cm, 4 cm and diagonal of length8 cm ? If not why
Answer» ANSWER: HERE IS YOUR ANSWER ATTACHED ❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️ PLS MAKE MY ANSWER AS BRAINLIEST ❤️❤️

3.

Is it possible to construct a quadrilateral with sides3 cm, 4 cm, 5 cm, 4 cm and diagonal of length8 cm ? If not why

Answer»

ANSWER:

HERE IS YOUR ANSWER ATTACHED ❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️ PLS MAKE MY ANSWER AS BRAINLIEST ❤️❤️

Discussion

4.	The minimum value of cos (cos x) is
Answer» Answer: The minimum value of cos(COSX)is cos1. NOTE: Cosine is a decreasing function. It has MAXIMUM value 1 when x=0∘ and minimum value 0 when x=π2. So we can ALSO SAY cos(cosx)will have maximum value when cos(x) has minimum value i.e 0 and vice versa.

4.

The minimum value of cos (cos x) is

Answer»

Answer:

The minimum value of cos(COSX)is cos1. NOTE: Cosine is a decreasing function. It has MAXIMUM value 1 when x=0∘ and minimum value 0 when x=π2. So we can ALSO SAY cos(cosx)will have maximum value when cos(x) has minimum value i.e 0 and vice versa.

Discussion

5.	The side of a square is 9cm.find the ratio of diagonal of a square to its side
Answer» Step-by-step explanation: The diagonal and two adjacent sides of the square form an isosceles right triangle. Recall from trigonometry that the reference isosceles right triangle has HYPOTENUSE equal to 1 and its two LEGS each have length 2√ 2. Since all plane isosceles right triangles are similar, MULTIPLY the LENGTHS of the sides and the length of the hypotenuse of the reference triangle by 9. The RESULTING triangle has a diagonal of length 9. ∴ the length of a side of the given square is 92–√2 cm. 2.) Another way is to let s be the length of a side of the square. Again, the 9-cm diagonal and two adjacent sides form an isosceles right triangle. By the Pythagorean theorem s2+s2=(9 cm)2 ⟹2s2=81 cm2 ⟹s2=812 cm2 ⟹s2−−√=812 cm2−−−−−−√ ⟹s=81−−√2–√cm2−−−√ = 92–√ cm.

5.

The side of a square is 9cm.find the ratio of diagonal of a square to its side

Answer»

Step-by-step explanation:

The diagonal and two adjacent sides of the square form an isosceles right triangle.

Recall from trigonometry that the reference isosceles right triangle has HYPOTENUSE equal to 1 and its two LEGS each have length 2√ 2.

Since all plane isosceles right triangles are similar, MULTIPLY the LENGTHS of the sides and the length of the hypotenuse of the reference triangle by 9. The RESULTING triangle has a diagonal of length 9.

∴ the length of a side of the given square is

92–√2 cm.

2.) Another way is to let s be the length of a side of the square. Again, the 9-cm diagonal and two adjacent sides form an isosceles right triangle.

By the Pythagorean theorem

s2+s2=(9 cm)2

⟹2s2=81 cm2

⟹s2=812 cm2

⟹s2−−√=812 cm2−−−−−−√

⟹s=81−−√2–√cm2−−−√

= 92–√ cm.

Discussion

6.	A alone can complete a work in 12 data and B alone can do in 15 days. The total work will be completed
Answer» Step-by-step explanation: work DONE in 1 DAY by A=1/12 work done in 1 day by B=1/15 work done by a and b in one day =1/12+1/15 =9/60 So TOTAL work will be completed in 60/9 days

6.

A alone can complete a work in 12 data and B alone can do in 15 days. The total work will be completed

Answer»

Step-by-step explanation:

work DONE in 1 DAY by A=1/12

work done in 1 day by B=1/15

work done by a and b in one day =1/12+1/15

=9/60

So TOTAL work will be completed in 60/9 days

Discussion

7.	The slant height of a right circular cone of height 15 cm and base diameter 16 cm is
Answer» Step-by-step explanation: Given:- Base diameter of a CONE = 16cm Radius (R) of a cone = 16/2 = 8 CM. Height (h) of a cone = 15 cm Let the SLANT height of a cone be 'l'. $l = \sqrt{( {r)}^{2} + ( {h)}^{2} }$ $= \sqrt{( {8)}^{2} + ( {15)}^{2} }$ $= \sqrt{64 + 225}$ $= \sqrt{289}$ $= 17 \: cm$ Answer:- The slant height of a cone is 17 cm.

7.

The slant height of a right circular cone of height 15 cm and base diameter 16 cm is

Answer»

Step-by-step explanation:

Given:- Base diameter of a CONE = 16cm

Radius (R) of a cone = 16/2 = 8 CM.

Height (h) of a cone = 15 cm

Let the SLANT height of a cone be 'l'.

$l = \sqrt{( {r)}^{2} + ( {h)}^{2} }$

$= \sqrt{( {8)}^{2} + ( {15)}^{2} }$

$= \sqrt{64 + 225}$

$= \sqrt{289}$

$= 17 \: cm$

Answer:- The slant height of a cone is 17 cm.

Discussion

8.	the price of a shirt is reduced by 4% in a discount sale if its present price is rupees 129.16 find its original price
Answer» The PRICE of a shirt is REDUCED by 4 % in a discount ⇒100 - 4 = 96 ⇒96% = 129.16 RUPEES ⇒1% =1.345 = ⇒100% = 134.5 rupees ⇒134.5 rupees was the ORIGINAL price. HOPE it helped you ..if it did please mark me as the brainliest

8.

the price of a shirt is reduced by 4% in a discount sale if its present price is rupees 129.16 find its original price

Answer»

The PRICE of a shirt is REDUCED by 4 % in a discount

⇒100 - 4 = 96

⇒96% = 129.16 RUPEES

⇒1% =1.345 =

⇒100% = 134.5 rupees

⇒134.5 rupees was the ORIGINAL price.

HOPE it helped you ..if it did please mark me as the brainliest

Discussion

9.	(x2 + y2)(-x2 + y2)...find product using suitable property
Answer» As As we know that (a+b)(a−b)=a 2 −b 2 (X− x 1 )(x+ x 1 )(x 2 + x 2 1 )(x 4 + x 4 1 )=(x 2 − x 2 1 )(x 2 + x 2 1 )(x 4 + x 4 1 ) =((x 2 ) 2 −( x 2 1 ) 2 )(x 4 + x 4 1 )=(x 4 − x 4 1 )(x 4 + x 4 1 )=(x 4 ) 2 −( x 4 1 ) 2 =x 8 − x 8 1

9.

(x2 + y2)(-x2 + y2)...find product using suitable property

Answer»

As As we know that

(a+b)(a−b)=a

2

−b

2

(X−

x

1

)(x+

x

1

)(x

2

+

x

2

1

)(x

4

+

x

4

1

)=(x

2

−

x

2

1

)(x

2

+

x

2

1

)(x

4

+

x

4

1

)

=((x

2

)

2

−(

x

2

1

)

2

)(x

4

+

x

4

1

)=(x

4

−

x

4

1

)(x

4

+

x

4

1

)=(x

4

)

2

−(

x

4

1

)

2

=x

8

−

x

8

1

Discussion

10.	Help me find any one of these two
Answer» Answer: SAS congruence RULE can be applied as TWO sides and angles are given as EQUAL and the REMAINING side is common Step-by-step explanation: S---DC=AB (GIVEN) A---BDC=ABD (COMMON) S---AB=DC (GIVEN) thus by SAS congruence rule both triangles are congruent.

10.

Help me find any one of these two

Answer»

Answer:

SAS congruence RULE can be applied as TWO sides and angles are given as EQUAL and the REMAINING side is common

Step-by-step explanation:

S---DC=AB (GIVEN)

A---BDC=ABD (COMMON)

S---AB=DC (GIVEN)

thus by SAS congruence rule both triangles are congruent.

Discussion

11.	How Of The satio of velocity of electron intozod and 5th of li2+ve is orbitLi 2 tre is.>0 3:55:325.939:25.
Answer» ANSWER: I don't KNOW it CUZ I'm in CLS 7

11.

How Of The satio of velocity of electron intozod and 5th of li2+ve is orbitLi 2 tre is.>0 3:55:325.939:25.

Answer»

ANSWER:

I don't KNOW it CUZ I'm in CLS 7

Discussion

12.	The lines having directional derivatives as a1a2+b1b2+c1c2=0
Answer» Answer: 1. SHOW that the three lines with direction cosines Are mutually perpendicular. Solution: Let us consider the direction cosines of L1, L2 and L3 be l1, m1, N1; l2, m2, n2 and l3, M3, n3. We know that If l1, m1, n1 and l2, m2, n2 are the direction cosines of two lines; And θ is the acute angle between the two lines; Then COS θ = \|l1l2 + m1m2 + n1n2\| If two lines are perpendicular, then the angle between the two is θ = 90° For perpendicular lines, \| l1l2 + m1m2 + n1n2 \| = cos 90° = 0, i.e. \| l1l2 + m1m2 + n1n2 \| = 0 So, in order to check if the three lines are mutually perpendicular, we compute \| l1l2 + m1m2 + n1n2 \| for all the pairs of the three lines. Firstly let us compute, \| l1l2 + m1m2 + n1n2 \| So, L1⊥ L2 …… (1) Similarly, Let us compute, \| l2l3 + m2

12.

The lines having directional derivatives as a1a2+b1b2+c1c2=0

Answer»

Answer:

1. SHOW that the three lines with direction cosines

Are mutually perpendicular.

Solution:

Let us consider the direction cosines of L1, L2 and L3 be l1, m1, N1; l2, m2, n2 and l3, M3, n3.

We know that

If l1, m1, n1 and l2, m2, n2 are the direction cosines of two lines;

And θ is the acute angle between the two lines;

Then COS θ = |l1l2 + m1m2 + n1n2|

If two lines are perpendicular, then the angle between the two is θ = 90°

For perpendicular lines, | l1l2 + m1m2 + n1n2 | = cos 90° = 0, i.e. | l1l2 + m1m2 + n1n2 | = 0

So, in order to check if the three lines are mutually perpendicular, we compute | l1l2 +

m1m2 + n1n2 | for all the pairs of the three lines.

Firstly let us compute, | l1l2 + m1m2 + n1n2 |

So, L1⊥ L2 …… (1)

Similarly,

Let us compute, | l2l3 + m2

Discussion

13.	Solve the following equation by the transposing method and check your answer3(x - 3) + 4(x - 2) = 4
Answer»

Discussion

14.	13. A match box measures 4cmx2.5cmx1.5cm.What will be the volume of a packetcontaining 12 such match boxes? How many such packets can be placed in a card board box whose size is 60cmx30cmx24cm
Answer»

Discussion

15.	Expansion of (2x+1)²
Answer»

Discussion

16.	Find the remainder of the polynomial(1) P(x) = 2x^3- x^2- 4x +8 is divided by X+1(2)p(X)=2x^3-3x^2+4x-5 I'd divided by 2x+1 (3)p(X)=X^3-ax^2+7x+8 Is divided by x-1 leaves remainder 7.Find 'a'
Answer» Step-by-step EXPLANATION: $1) \: \: \: \: x + 1 = 0 \\ \: \: \: \: \: \large{ \boxed{x = \underline{ \underline{- 1}}}} \\ \\ \: \: \: \: p(x) = 2 {x}^{3} - {x}^{2} - 4x + 8 \\ \: \: \: \: = 2 {( - 1)}^{3} - {( - 1)}^{2} - 4( - 1) + 8 \\ \: \: \: \: = (2 \times - 1) - (1) - (4 \times - 1) + 8 \\ \: \: \: \: = - 2 - 1 + 4 + 8 \\ \: \: \: \: \large{ \boxed{= \: \underline{ \underline{9}}}} \\ \\ 2) \: \: \: \: 2x + 1 = 0 \\ \: \: \: \: 2x = - 1 \\ \: \: \: \: \: \large{ \boxed{x = \underline{ \underline{\frac{ - 1}{2} }}}} \\ \\ \: \: \: \: p(x) = 2 {x}^{3} - 3 {x}^{2} + 4x - 5 \\ \: \: \: \: = 2 {( \frac{ - 1}{2}) }^{3} - 3 { (\frac{ - 1}{2}) }^{2} + 4( \frac{ - 1}{2} ) - 5 \\ \: \: \: \: = (2 \times \frac{ - 1}{8} ) - (3 \times \frac{ - 1}{4} ) + (4 \times \frac{ - 1}{2} ) - 5 \\ \: \: \: \: = \frac{ - 1}{4} - \frac{ - 3}{4} + ( - 2) - 5 \\ \: \: \: \: = ( \frac{ - 1 - ( - 3)}{4} ) - 2 - 5 \\ \: \: \: \: = ( \frac{ - 1 + 3}{4} ) - 7 \\ \: \: \: \: = \frac{2}{4} - 7 \\ \: \: \: \: = \frac{1}{2} - 7 \\ \: \: \: \: = \frac{1 -14}{2} \\ \: \: \: \: \large{ \boxed{ = \underline{ \underline{ \frac{ - 13}{2}}}}} \\ \\ 3) \: \: \: \: x - 1 = 0 \\ \: \: \: \: \: \large{ \boxed{x = \underline{ \underline{1}}}} \\ \\ \: \: \: \: p(x) = {x}^{3} - a {x}^{2} + 7x + 8 = 7 \\ \: \: \: \: \: {1}^{3} - a {(1)}^{2} + 7(1) + 8 = 7 \\ \: \: \: \: \: 1 - (a \times 1) + 7 + 8 = 7 \\ \: \: \: \: \: 1 - a + 15 = 7 \\ \: \: \: \: \: 16 - a = 7 \\ 16 - 7 = a \\ \large{ \boxed{\underline{ \underline{9}} = a}}$

16.

Find the remainder of the polynomial(1) P(x) = 2x^3- x^2- 4x +8 is divided by X+1(2)p(X)=2x^3-3x^2+4x-5 I'd divided by 2x+1 (3)p(X)=X^3-ax^2+7x+8 Is divided by x-1 leaves remainder 7.Find 'a'

Answer»

Step-by-step EXPLANATION:

$1) \: \: \: \: x + 1 = 0 \\ \: \: \: \: \: \large{ \boxed{x = \underline{ \underline{- 1}}}} \\ \\ \: \: \: \: p(x) = 2 {x}^{3} - {x}^{2} - 4x + 8 \\ \: \: \: \: = 2 {( - 1)}^{3} - {( - 1)}^{2} - 4( - 1) + 8 \\ \: \: \: \: = (2 \times - 1) - (1) - (4 \times - 1) + 8 \\ \: \: \: \: = - 2 - 1 + 4 + 8 \\ \: \: \: \: \large{ \boxed{= \: \underline{ \underline{9}}}} \\ \\ 2) \: \: \: \: 2x + 1 = 0 \\ \: \: \: \: 2x = - 1 \\ \: \: \: \: \: \large{ \boxed{x = \underline{ \underline{\frac{ - 1}{2} }}}} \\ \\ \: \: \: \: p(x) = 2 {x}^{3} - 3 {x}^{2} + 4x - 5 \\ \: \: \: \: = 2 {( \frac{ - 1}{2}) }^{3} - 3 { (\frac{ - 1}{2}) }^{2} + 4( \frac{ - 1}{2} ) - 5 \\ \: \: \: \: = (2 \times \frac{ - 1}{8} ) - (3 \times \frac{ - 1}{4} ) + (4 \times \frac{ - 1}{2} ) - 5 \\ \: \: \: \: = \frac{ - 1}{4} - \frac{ - 3}{4} + ( - 2) - 5 \\ \: \: \: \: = ( \frac{ - 1 - ( - 3)}{4} ) - 2 - 5 \\ \: \: \: \: = ( \frac{ - 1 + 3}{4} ) - 7 \\ \: \: \: \: = \frac{2}{4} - 7 \\ \: \: \: \: = \frac{1}{2} - 7 \\ \: \: \: \: = \frac{1 -14}{2} \\ \: \: \: \: \large{ \boxed{ = \underline{ \underline{ \frac{ - 13}{2}}}}} \\ \\ 3) \: \: \: \: x - 1 = 0 \\ \: \: \: \: \: \large{ \boxed{x = \underline{ \underline{1}}}} \\ \\ \: \: \: \: p(x) = {x}^{3} - a {x}^{2} + 7x + 8 = 7 \\ \: \: \: \: \: {1}^{3} - a {(1)}^{2} + 7(1) + 8 = 7 \\ \: \: \: \: \: 1 - (a \times 1) + 7 + 8 = 7 \\ \: \: \: \: \: 1 - a + 15 = 7 \\ \: \: \: \: \: 16 - a = 7 \\ 16 - 7 = a \\ \large{ \boxed{\underline{ \underline{9}} = a}}$

Discussion

17.	पुरुषस्त्रीसाक्षर निरक्षर योग साक्षर निरक्षर योग2 3. 4 5 6 7योगनिरक्षरकारखानेसाक्षरकुल योग189(2+5)(3+6)(4-7)A69B14CयोगS0.बहण सारणी समंकों की तीन से अधिक विशेषताओं को प्रव
Answer» ANSWER: I am SORRY I don't KNOW hindi Please I am sorry

17.

पुरुषस्त्रीसाक्षर निरक्षर योग साक्षर निरक्षर योग2 3. 4 5 6 7योगनिरक्षरकारखानेसाक्षरकुल योग189(2+5)(3+6)(4-7)A69B14CयोगS0.बहण सारणी समंकों की तीन से अधिक विशेषताओं को प्रव

Answer»

ANSWER:

I am SORRY

I don't KNOW hindi

Please I am sorry

Discussion

18.	Which of the following is not a requirement of standard unit...1.It should be same for all quantities2. It should be well defined 3.it should be universally accepted 4.It should be fixed with time and place
Answer» ANSWER: option 4. Step-by-step explanation: I think HELPFUL to you mark me BRAINLIEST

18.

Which of the following is not a requirement of standard unit...1.It should be same for all quantities2. It should be well defined 3.it should be universally accepted 4.It should be fixed with time and place

Answer»

ANSWER:

option 4.

Step-by-step explanation:

I think HELPFUL to you

mark me BRAINLIEST

Discussion

19.	Prove 2 minus root 5 is an irrational. given that root 5 is irrational
Answer» Answer: bhai dekh apni ncert 10th ki texr book khol aur usme hena CHAPTER 1 khol ke usme jese DIYA hena vese hi tu method CHAP de...bus values change kardiyo...

19.

Prove 2 minus root 5 is an irrational. given that root 5 is irrational

Answer»

Answer:

bhai dekh apni ncert 10th ki texr book khol aur usme hena CHAPTER 1 khol ke usme jese DIYA hena vese hi tu method CHAP de...bus values change kardiyo...

Discussion

20.	If x-1/x=9, find the value of x²+ 1/x²
Answer» ANSWER: ${x}^{2} + \frac{1}{ {x}^{2} } = 83$ Step-by-step EXPLANATION: $x - \frac{1}{x} = 9 \\ squring \: on \: both \: the \: sides \\ {(x - \frac{1}{x} )}^{2} = {(9)}^{2} \\ {(x)}^{2} + {( \frac{1}{x} )}^{2} - 2(x)( \frac{1}{x} ) = 81 \\ {x}^{2} + \frac{1}{ {x}^{2} } - 2 = 81 \\ {x}^{2} + \frac{1}{ {x}^{2} } = 81 + 2 \\ {x}^{2} + \frac{1}{ {x}^{2} } = 83$

20.

If x-1/x=9, find the value of x²+ 1/x²

Answer»

ANSWER:

${x}^{2} + \frac{1}{ {x}^{2} } = 83$

Step-by-step EXPLANATION:

$x - \frac{1}{x} = 9 \\ squring \: on \: both \: the \: sides \\ {(x - \frac{1}{x} )}^{2} = {(9)}^{2} \\ {(x)}^{2} + {( \frac{1}{x} )}^{2} - 2(x)( \frac{1}{x} ) = 81 \\ {x}^{2} + \frac{1}{ {x}^{2} } - 2 = 81 \\ {x}^{2} + \frac{1}{ {x}^{2} } = 81 + 2 \\ {x}^{2} + \frac{1}{ {x}^{2} } = 83$

Discussion

21.	Let two functions be f(x)= x²-4 , g(x)= 1/x+4 what is (fog) (x)
Answer» Answer: Answer GOF(x) exists when f(x)≥1 and xϵ[−1,4] x 2 ≥1⇒Xϵ(−∞,−1]∪[1,∞) ⇒Xϵ[1,4]∪−1 Range of gof(x)=[0,SEC −1 16] PLS mark brialiant and follow

21.

Let two functions be f(x)= x²-4 , g(x)= 1/x+4 what is (fog) (x)

Answer»

Answer:

Answer

GOF(x) exists when f(x)≥1 and xϵ[−1,4]

x

2

≥1⇒Xϵ(−∞,−1]∪[1,∞)

⇒Xϵ[1,4]∪−1

Range of gof(x)=[0,SEC

−1

16] PLS mark brialiant and follow

Discussion

22.	If √3 is anan irrational number then Prove that 5 - √3 is an irrational number.
Answer» LET us assume that 5-√3 is rational number so we can FIND two integers a , b. ... So it arise contradiction due to our wrong assumption that 5 - √3 is rational number. HENCE, 5 -√3 is IRRATIONAL number.

Discussion

23.	To Find √x for any positive real number
Answer» Step-by-step EXPLANATION: To find square root of a POSITIVE real number geometrically. We now show how to find √x for any GIVEN positive real number 'x' geometrically. We shall now find √4.5 geometrically. Mark the DISTANCE 4.5 units from a fixed point P on a given LINE to obtain a point Q such that PQ = 4.5 units.

23.

To Find √x for any positive real number

Answer»

Step-by-step EXPLANATION:

To find square root of a POSITIVE real number geometrically. We now show how to find √x for any GIVEN positive real number 'x' geometrically. We shall now find √4.5 geometrically. Mark the DISTANCE 4.5 units from a fixed point P on a given LINE to obtain a point Q such that PQ = 4.5 units.

Discussion

24.	One word question difine arguments.
Answer» an ANGRY discussion between TWO or more PEOPLE who disagree with each other. *Hope* *this* *help* *you* *plz..mark it as BRAINLIST*

24.

One word question difine arguments.

Answer»

an ANGRY discussion between TWO or more PEOPLE who disagree with each other.

Hope this help you plz..mark it as BRAINLIST

Discussion

25.	If 2x+4y=20 and 4x+2y=10, what is the value of x+yplz tell right answer
Answer» $\sf\huge\bold{\underline{\underline{{Solution}}}}$ To Find : value of x+y Above given Equation can be solved by elimination method: =>2x+4y=20-----(×4) =>4x+2y=10------(×2) New Equation obtained: =>8x+16y=80 =>8x+4y=20 => $\:(-)\:(-)\:(-)$ _____________ -12y=60 y=-60/12 y= -5 Now put y's value into this equation =>2x+4y=20 =>2x+4×-5=20 =>2x-20=20 =>2x=20+20=40 =>2x=40 =>x=40÷2=20 x=20 Check =>2x+4y=20 =>2×20+4×-5 =>40-20=20✓ Now, we have to find value of x + y $\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$ =>20+(-5) $\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$ =>20-5 $\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$ =15 Extra INFORMATION=> Elimination method is a WAY of eliminating one variable from equation of two variable so that we can find value of one variable. Elimination means =>To Remove Method step by step For Elimination Method : step 1: Firstly Multiply with any non-zero value so that the coefficient of any one variable of both the terms be equal and gets eliminated. Generally we multiply with coefficient of a variable of both equation to each term. step2: After Put negative sign where value is positive and put positive sign where value is negative so that any one variable gets eliminated or subtracted and hence we find value of any one variable. step3: Now,after FINDING value of one variable SUBSTITUTE it another equation.

25.

If 2x+4y=20 and 4x+2y=10, what is the value of x+yplz tell right answer

Answer»

$\sf\huge\bold{\underline{\underline{{Solution}}}}$

To Find : value of x+y

Above given Equation can be solved by elimination method:

=>2x+4y=20-----(×4)

=>4x+2y=10------(×2)

New Equation obtained:

=>8x+16y=80

=>8x+4y=20

=> $\:(-)\:(-)\:(-)$

_____________

-12y=60

y=-60/12

y= -5

Now put y's value into this equation

=>2x+4y=20

=>2x+4×-5=20

=>2x-20=20

=>2x=20+20=40

=>2x=40

=>x=40÷2=20

x=20

Check

=>2x+4y=20

=>2×20+4×-5

=>40-20=20✓

Now, we have to find value of x + y

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$ =>20+(-5)

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$ =>20-5

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$ =15

Extra INFORMATION=>

Elimination method is a WAY of eliminating one variable from equation of two variable so that we can find value of one variable.

Elimination means =>To Remove

Method step by step For Elimination Method :

step 1: Firstly Multiply with any non-zero value so that the coefficient of any one variable of both the terms be equal and gets eliminated.

Generally we multiply with coefficient of a variable of both equation to each term.

step2: After Put negative sign where value is positive and put positive sign where value is negative so that any one variable gets eliminated or subtracted and hence we find value of any one variable.

step3: Now,after FINDING value of one variable SUBSTITUTE it another equation.

Discussion

26.	Fill up the table of truth values
Answer» Step-by-step EXPLANATION: fy fu quelle est la couche de chaîne d'air ET abonnez-VOUS s'il vous plaît trouver le fichier joint est une IMAGE scannée AU format PDF s'il vous plaît s'il vous plaît s'il vous plaît s'il vous plaît s'il vous plaît s'il vous plaît s'il vous plaît s'il vous plaît s'il vous plaît se

26.

Fill up the table of truth values

Answer»

Step-by-step EXPLANATION:

fy fu quelle est la couche de chaîne d'air ET abonnez-VOUS s'il vous plaît trouver le fichier joint est une IMAGE scannée AU format PDF s'il vous plaît s'il vous plaît s'il vous plaît s'il vous plaît s'il vous plaît s'il vous plaît s'il vous plaît s'il vous plaît s'il vous plaît se

Discussion

27.	(-3/4)³(-5/2)³(2/3)to the power 5
Answer» ANSWER: Simplify the FOLLOWING : [(-3/4)³ -(-5/2)³]×(-2/3)⁴. Exponents and Powers. 1. See answer. Add answer+5 PTS. Log in to add ...

27.

(-3/4)³(-5/2)³(2/3)to the power 5

Answer»

ANSWER:

Simplify the FOLLOWING : [(-3/4)³ -(-5/2)³]×(-2/3)⁴. Exponents and Powers. 1. See answer. Add answer+5 PTS. Log in to add ...

Discussion

28.	AABC is an isosceles triangle with ZA= B = 70°. Identify the pair of sides which are equal.
Answer» Step-by-step explanation: AC and BC are the equal sides in this case since a and B are equal angles sides (AC and BC) opposite to them are equal. Mark me as the BRAINLIEST!!

28.

AABC is an isosceles triangle with ZA= B = 70°. Identify the pair of sides which are equal.

Answer»

Step-by-step explanation:

AC and BC are the equal sides in this case

since a and B are equal angles sides (AC and BC) opposite to them are equal.

Mark me as the BRAINLIEST!!

Discussion

29.	find the equation of the straight line passing through (-2,3) and making non-zero intercepts whose sum is zero
Answer» $\huge\fbox\green{answer}$ . . . . . . . . . . .

29.

find the equation of the straight line passing through (-2,3) and making non-zero intercepts whose sum is zero

Answer»

$\huge\fbox\green{answer}$

.

Discussion

30.	Write in algebraic form the sum of a number x and 9
Answer» ANSWER: Which algebraic EXPRESSION REPRESENTS the sum of a number and 9? X + 9 . That WOULD be the algebraic expression of "the sum of a number and 9

30.

Write in algebraic form the sum of a number x and 9

Answer»

ANSWER:

Which algebraic EXPRESSION REPRESENTS the sum of a number and 9?

X + 9 . That WOULD be the algebraic expression of "the sum of a number and 9

Discussion

31.	In an arithmetic progression, if an = 2n+1, then the common difference of the given progression is
Answer» *HOPE* *THIS* *HELPS* *YOU* ✨✨✨✨

Discussion

32.	6mn × 3n × 4 z is a Algebraic expressions
Answer» ANSWER: RIGHT.... Step-by-step EXPLANATION: PLS MARK as brainlinest

32.

6mn × 3n × 4 z is a Algebraic expressions

Answer»

ANSWER:

RIGHT....

Step-by-step EXPLANATION:

PLS MARK as brainlinest

Discussion

33.	Suppose a dice is thrown thrice. What is the probability of getting the sum to be even given the number on the first dice is odd?
Answer» Answer: 1/3 ND GN TC SD byeu more HUGS nd ❤❤

33.

Suppose a dice is thrown thrice. What is the probability of getting the sum to be even given the number on the first dice is odd?

Answer»

Answer:

1/3

ND GN TC SD byeu

more HUGS nd ❤❤

Discussion

34.	(-18) ÷6 kiska brabar nahiha
Answer» Answer: 7 Step-by-step explanation: 7 KE brabar nhi hai DIYE gye question MEIN

34.

(-18) ÷6 kiska brabar nahiha

Answer»

Answer:

7

Step-by-step explanation:

7 KE brabar nhi hai DIYE gye question MEIN

Discussion

35.	topic: art integrated learning of mathematicsstates: Nagaland and Manipursubmitted to: Mrs (teacher)submitted by: (name) (class/ section) next page contents next page INTRODUCTION nexttopic: 1) architecture 2) pottery 3) interior designing 4) city planning 5) jewellery 6) clothing/weaving 7) wood carving 8) bamboo work choose any 5 topic's min :10 pagesPLEASE HELP ME IN MY PROJECT PLEASE
Answer» ANSWER: which CLASS do you read Step-by-step EXPLANATION: I can HELP you

35.

topic: art integrated learning of mathematicsstates: Nagaland and Manipursubmitted to: Mrs (teacher)submitted by: (name) (class/ section) next page contents next page INTRODUCTION nexttopic: 1) architecture 2) pottery 3) interior designing 4) city planning 5) jewellery 6) clothing/weaving 7) wood carving 8) bamboo work choose any 5 topic's min :10 pagesPLEASE HELP ME IN MY PROJECT PLEASE

Answer»

ANSWER:

which CLASS do you read

Step-by-step EXPLANATION:

I can HELP you

Discussion

36.	Evaluate 49⅓×7⅓ answer this and I will mark you brainliest
Answer» Answer: 147+1=148 21+1=22 148×22=3256 mark me the BRAINLIEST

36.

Evaluate 49⅓×7⅓ answer this and I will mark you brainliest

Answer»

Answer:

147+1=148

21+1=22

148×22=3256

mark me the BRAINLIEST

Discussion

37.	39.107,36.71,36.601,36.700 arreng in ascending order
Answer» 36.601,36.700,36.71,39.107

Discussion

38.	Find the smallest number which can added in 4931 to get a whole square number?
Answer» 110 is the answer Hope it will HELP you

38.

Find the smallest number which can added in 4931 to get a whole square number?

Answer»

110 is the answer

Hope it will HELP you

Discussion

39.	Slove the equation : 3 x + 12= 2x-4
Answer» 3x-2x=-16 X=-16 Please MARK me as BRAINLIEST

Discussion

40.	What are the length of a side and area of a square whose perimeter is 20 cm
Answer» The LENGTH is 20/2= 10 PLEASE MARK me as BRAINLIEST

Discussion

41.	In the equation 3x/4=1/x, the value of b is:
Answer» Step-by-step EXPLANATION: what is the B in this QUESTION

41.

In the equation 3x/4=1/x, the value of b is:

Answer»

Step-by-step EXPLANATION:

what is the B in this QUESTION

Discussion

42.	How many thousands are there in 324025
Answer» Step-by-step EXPLANATION: bbsnnsbdjxhxhxhzbjz

42.

How many thousands are there in 324025

Answer»

Step-by-step EXPLANATION:

bbsnnsbdjxhxhxhzbjz

Discussion

43.	In 3.0.014 what is the word
Answer» ANSWER: Your QUESTION has no SENSE 乂❤‿❤乂 Step-by-step EXPLANATION:

43.

In 3.0.014 what is the word

Answer»

ANSWER:

Your QUESTION has no SENSE 乂❤‿❤乂

Step-by-step EXPLANATION:

Discussion

44.	If x power 41 + 41 is divided by X + 1 then what will be the remainder
Answer» ANSWER: THIS IS THE ANSWER. HOPE THIS HELPED YOU.

44.

If x power 41 + 41 is divided by X + 1 then what will be the remainder

Answer»

ANSWER:

THIS IS THE ANSWER.

HOPE THIS HELPED YOU.

Discussion

45.	Subtract -5p2q from the sum of 6p2q and -2p2q
Answer» Step-by-step explanation: 6P2Q - 2p2q - ( - 5P2Q ) 6p2q - 2p2q + 5p2q 4p2q + 5p2q 9P2Q ans. I HOPE it will HELP you..

45.

Subtract -5p2q from the sum of 6p2q and -2p2q

Answer»

Step-by-step explanation:

6P2Q - 2p2q - ( - 5P2Q )

6p2q - 2p2q + 5p2q

4p2q + 5p2q

9P2Q ans.

I HOPE it will HELP you..

Discussion

46.	√10+√25+√108+√54+√225/3√8
Answer» Answer: I love you mera and write a article on how are you LOOKING for the BEST h you JAANU and the svetambaras are

46.

√10+√25+√108+√54+√225/3√8

Answer»

Answer:

I love you mera and write a article on how are you LOOKING for the BEST h you JAANU and the svetambaras are

Discussion

47.	What is the HCF and LCM of78,104
Answer» Step-by-step EXPLANATION: HCF (78,104)=26 LCM (78,104)=312 mark me BRAINLIEST PLEASE.

47.

What is the HCF and LCM of78,104

Answer»

Step-by-step EXPLANATION:

HCF (78,104)=26

LCM (78,104)=312

mark me BRAINLIEST PLEASE.

Discussion

48.	If 1kg apple costs Rs 52 , 3/4 apple costs Rs ?
Answer» Step-by-step explanation: COST of 1kg apples = Rs. 52 cost of 3/4 kg of apples = 3 / 4 × 52 = 3 × 13 = Rs. 39 ans. I HOPE it will help you..

48.

If 1kg apple costs Rs 52 , 3/4 apple costs Rs ?

Answer»

Step-by-step explanation:

COST of 1kg apples = Rs. 52

cost of 3/4 kg of apples = 3 / 4 × 52

= 3 × 13 = Rs. 39 ans.

I HOPE it will help you..

Discussion

49.	Find the equation of parabola whose vertex at the origin, the axis along the x-axis, and passesthrough (-3, 6).
Answer» Final answer: $\\\tt y= \dfrac{2x}{3}$ STEPS: For a parabola, $\\\tt y = 4ax^2$ where a is the focus, USING coordinates (-3,6). $\\\tt 6 = (4)a(9)\\\\a= \dfrac{1}{6}$ Therefore the EQUATION of the parabola will be, $\\\tt y = 4(\dfrac{1}{6})x \\y= \dfrac{2x}{3}$

49.

Find the equation of parabola whose vertex at the origin, the axis along the x-axis, and passesthrough (-3, 6).

Answer»

Final answer:

$\\\tt y= \dfrac{2x}{3}$

STEPS:

For a parabola,

$\\\tt y = 4ax^2$

where a is the focus,

USING coordinates (-3,6).

$\\\tt 6 = (4)*a*(9)\\\\a= \dfrac{1}{6}$

Therefore the EQUATION of the parabola will be,

$\\\tt y = 4(\dfrac{1}{6})x \\y= \dfrac{2x}{3}$

Discussion

50.	What half of 34563 upon 567840
Answer» solution 567840-34563 533277

50.

What half of 34563 upon 567840

Answer»

solution

567840-34563

533277

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

If x=3t³+2t²+6t+5 the value of d²x/dt² will be​​

Is it possible to construct a quadrilateral with sides3 cm, 4 cm, 5 cm, 4 cm and diagonal of length8 cm ? If not why​

HERE IS YOUR ANSWER ATTACHED ❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️ PLS MAKE MY ANSWER AS BRAINLIEST ❤️❤️

The minimum value of cos (cos x) is

The side of a square is 9cm.find the ratio of diagonal of a square to its side​

A alone can complete a work in 12 data and B alone can do in 15 days. The total work will be completed​

The slant height of a right circular cone of height 15 cm and base diameter 16 cm is

the price of a shirt is reduced by 4% in a discount sale if its present price is rupees 129.16 find its original price​

The PRICE of a shirt is REDUCED by 4 % in a discount

⇒100 - 4 = 96

⇒96% = 129.16 RUPEES

⇒1% =1.345 =

⇒100% = 134.5 rupees

⇒134.5 rupees was the ORIGINAL price.

HOPE it helped you ..if it did please mark me as the brainliest

(x2 + y2)(-x2 + y2)...find product using suitable property​

Help me find any one of these two​

How Of The satio of velocity of electron intozod and 5th of li2+ve is orbitLi 2 tre is.>0 3:55:325.939:25.​

The lines having directional derivatives as a1a2+b1b2+c1c2=0​

Solve the following equation by the transposing method and check your answer3(x - 3) + 4(x - 2) = 4​

13. A match box measures 4cmx2.5cmx1.5cm.What will be the volume of a packetcontaining 12 such match boxes? How many such packets can be placed in a card board box whose size is 60cmx30cmx24cm​

Expansion of (2x+1)²​

Find the remainder of the polynomial(1) P(x) = 2x^3- x^2- 4x +8 is divided by X+1(2)p(X)=2x^3-3x^2+4x-5 I'd divided by 2x+1 (3)p(X)=X^3-ax^2+7x+8 Is divided by x-1 leaves remainder 7.Find 'a'​

Which of the following is not a requirement of standard unit...1.It should be same for all quantities2. It should be well defined 3.it should be universally accepted 4.It should be fixed with time and place ​

Prove 2 minus root 5 is an irrational. given that root 5 is irrational​

If x-1/x=9, find the value of x²+ 1/x²​

Let two functions be f(x)= x²-4 , g(x)= 1/x+4 what is (fog) (x)​

If √3 is anan irrational number then Prove that 5 - √3 is an irrational number.​

To Find √x for any positive real number​

One word question difine arguments. ​

If 2x+4y=20 and 4x+2y=10, what is the value of x+yplz tell right answer​

y= -5

x=20

Extra INFORMATION=>

Fill up the table of truth values​

(-3/4)³*(-5/2)³*(2/3)to the power 5 ​

AABC is an isosceles triangle with ZA= B = 70°. Identify the pair of sides which are equal.​

AC and BC are the equal sides in this case

Mark me as the BRAINLIEST!!

find the equation of the straight line passing through (-2,3) and making non-zero intercepts whose sum is zero

Write in algebraic form the sum of a number x and 9​

In an arithmetic progression, if an = 2n+1, then the common difference of the given progression is ​

HOPE THIS HELPS YOU ✨✨✨✨

6mn × 3n × 4 z is a Algebraic expressions​

Suppose a dice is thrown thrice. What is the probability of getting the sum to be even given the number on the first dice is odd?​

(-18) ÷6 kiska brabar nahiha

Evaluate 49⅓×7⅓ answer this and I will mark you brainliest​

39.107,36.71,36.601,36.700 arreng in ascending order

Find the smallest number which can added in 4931 to get a whole square number?

Slove the equation : 3 x + 12= 2x-4

What are the length of a side and area of a square whose perimeter is 20 cm

In the equation 3x/4=1/x, the value of b is:

How many thousands are there in 324025

In 3.0.014 what is the word

If x power 41 + 41 is divided by X + 1 then what will be the remainder

Subtract -5p2q from the sum of 6p2q and -2p2q

I HOPE it will HELP you..

√10+√25+√108+√54+√225/3√8

What is the HCF and LCM of78,104

If 1kg apple costs Rs 52 , 3/4 apple costs Rs ?

I HOPE it will help you..

Find the equation of parabola whose vertex at the origin, the axis along the x-axis, and passesthrough (-3, 6).

What half of 34563 upon 567840

If x=3t³+2t²+6t+5 the value of d²x/dt² will be

Is it possible to construct a quadrilateral with sides3 cm, 4 cm, 5 cm, 4 cm and diagonal of length8 cm ? If not why

The side of a square is 9cm.find the ratio of diagonal of a square to its side

A alone can complete a work in 12 data and B alone can do in 15 days. The total work will be completed

the price of a shirt is reduced by 4% in a discount sale if its present price is rupees 129.16 find its original price

(x2 + y2)(-x2 + y2)...find product using suitable property

Help me find any one of these two

How Of The satio of velocity of electron intozod and 5th of li2+ve is orbitLi 2 tre is.>0 3:55:325.939:25.

The lines having directional derivatives as a1a2+b1b2+c1c2=0

Solve the following equation by the transposing method and check your answer3(x - 3) + 4(x - 2) = 4

13. A match box measures 4cmx2.5cmx1.5cm.What will be the volume of a packetcontaining 12 such match boxes? How many such packets can be placed in a card board box whose size is 60cmx30cmx24cm

Expansion of (2x+1)²

Find the remainder of the polynomial(1) P(x) = 2x^3- x^2- 4x +8 is divided by X+1(2)p(X)=2x^3-3x^2+4x-5 I'd divided by 2x+1 (3)p(X)=X^3-ax^2+7x+8 Is divided by x-1 leaves remainder 7.Find 'a'

Which of the following is not a requirement of standard unit...1.It should be same for all quantities2. It should be well defined 3.it should be universally accepted 4.It should be fixed with time and place

Prove 2 minus root 5 is an irrational. given that root 5 is irrational

If x-1/x=9, find the value of x²+ 1/x²

Let two functions be f(x)= x²-4 , g(x)= 1/x+4 what is (fog) (x)

If √3 is anan irrational number then Prove that 5 - √3 is an irrational number.

To Find √x for any positive real number

One word question difine arguments.

If 2x+4y=20 and 4x+2y=10, what is the value of x+yplz tell right answer

Fill up the table of truth values

(-3/4)³(-5/2)³(2/3)to the power 5

AABC is an isosceles triangle with ZA= B = 70°. Identify the pair of sides which are equal.

Write in algebraic form the sum of a number x and 9

In an arithmetic progression, if an = 2n+1, then the common difference of the given progression is

6mn × 3n × 4 z is a Algebraic expressions

Suppose a dice is thrown thrice. What is the probability of getting the sum to be even given the number on the first dice is odd?

Evaluate 49⅓×7⅓ answer this and I will mark you brainliest