332354 + Interview Questions in Secondary School in Math

1.	I want the answer of the equation: x+2/x+3+5=1/2
Answer» Step-by-step explanation: FIRST WRITE your QUESTION then cross multiply then group the LIKE terms

1.

I want the answer of the equation: x+2/x+3+5=1/2

Answer»

Step-by-step explanation:

then cross multiply

then group the LIKE terms

2.	-2/7 answer in multiplicative inverse
Answer» -7/2 is the ANSWER to your QUESTION

Discussion

3.	Four gongs strike at interval of 30, 60, 90 and 150 minutes respectively. At what time they strike together again next, if they start simultaneously at 12 noon
Answer» Answer: HCF of 30,60,90 and 150 =450 so from 12 noon it will take 450 min more time they strike together again next now 450 min =450/60=7h30 min so next they strike together at 7:30 P.M

3.

Four gongs strike at interval of 30, 60, 90 and 150 minutes respectively. At what time they strike together again next, if they start simultaneously at 12 noon

Answer»

Answer:

HCF of 30,60,90 and 150

=450

so from 12 noon it will take 450 min more time they strike together again next

now 450 min =450/60=7h30 min

so next they strike together at 7:30 P.M

Discussion

4.	Draw a rectangle measuring 24 cm by 10 cm
Answer» Answer Step 1: 1ST draw a base of 24cm of rectangle. Step 2: Draw PERPENDICULAR from both the edges of base in UPWORD direction of 10cm Step 3: Now JOINT both LINE with a line parallel to base of 24cm Step-by-step explanation:

4.

Draw a rectangle measuring 24 cm by 10 cm

Answer»

Answer

Step 1: 1ST draw a base of 24cm of rectangle.

Step 2: Draw PERPENDICULAR from both the edges of base in UPWORD direction of 10cm

Step 3: Now JOINT both LINE with a line parallel to base of 24cm

Step-by-step explanation:

Discussion

5.	Write three irrational number between 1/3 and 1/2
Answer» ANSWER: MULTIPLYING and dividing 1/4 by 30 and 1/3 by 40 30/120 40/120 so FOUR RATIONAL no . between 1/4 and 1/3 =31/120. 32/120.34/120. 37/120

5.

Write three irrational number between 1/3 and 1/2

Answer»

ANSWER:

MULTIPLYING and dividing 1/4 by 30

and 1/3 by 40

30/120

40/120

so FOUR RATIONAL no . between 1/4 and 1/3

=31/120. 32/120.34/120. 37/120

Discussion

6.	In a school 4/9 of the students are girls if there are 540 students, find the number of boys in the school
Answer» Answer: LET the total no. of students be x. THEREFORE, no. of BOYS are 620. Step-by-step EXPLANATION:

6.

In a school 4/9 of the students are girls if there are 540 students, find the number of boys in the school

Answer»

Answer:

LET the total no. of students be x. THEREFORE, no. of BOYS are 620.

Step-by-step EXPLANATION:

Discussion

7.	Finf the following product by using suitable properties : 739×102
Answer» answer 75378 MARK as BRAINLIEST.

7.

Finf the following product by using suitable properties : 739×102

Answer»

answer

75378

MARK as BRAINLIEST.

Discussion

8.	If one number of pythorean triplet is 8, then the triplet is
Answer» ANSWER: (8)=4,15,17 Step-by-step explanation: 2m=8 m=4 m sq-1=4 sq-1=16-1=15 m sq+1=4 sq+1=16+1=17

8.

If one number of pythorean triplet is 8, then the triplet is

Answer»

ANSWER:

(8)=4,15,17

Step-by-step explanation:

2m=8

m=4

m sq-1=4 sq-1=16-1=15

m sq+1=4 sq+1=16+1=17

Discussion

9.	Functions can be represented by dash ways
Answer» Answer: Hi mate here is your answer. Key Points Key POINTSA function can be represented verbally. For example, the circumference of a square is four times one of its sides. A function can be represented ALGEBRAICALLY. For example, 3x+6 3 x + 6 . HOPE it is helpful and Mark it as a brainlist and follow me back.

9.

Functions can be represented by dash ways

Answer»

Answer:

Hi mate here is your answer.

Key Points

Key POINTSA function can be represented verbally. For example, the circumference of a square is four times one of its sides. A function can be represented ALGEBRAICALLY. For example, 3x+6 3 x + 6 .

HOPE it is helpful and Mark it as a brainlist and follow me back.

Discussion

10.	Theorem:Show that s(r,n)=s(r-1 , n-1)+(r-1)
Answer» ANSWER: · THEOREM:SHOW that s(r ,n)=s(r-1 , n-1)+(r-1). Step-by-step explanation: May this ANSWER will help you plz mark has BRAINLIEST

10.

Theorem:Show that s(r,n)=s(r-1 , n-1)+(r-1)

Answer»

ANSWER:

· THEOREM:SHOW that s(r ,n)=s(r-1 , n-1)+(r-1).

Step-by-step explanation:

May this ANSWER will help you plz mark has BRAINLIEST

Discussion

11.	Find the largest four digit number which is divisible by 52
Answer» Largest 4 digit number =9999 Then you divide 9999 by 52 you get the ANSWER 192.28 then subtract by 9999 you get 9806.72

11.

Find the largest four digit number which is divisible by 52

Answer»

Largest 4 digit number =9999

Then you divide 9999 by 52 you get the ANSWER 192.28 then subtract by 9999 you get 9806.72

Discussion

12.	Solve the following equation and find value of x;y : -5x+10y=1 ; x-2y=-8
Answer» ANSWER: MARK me as BRAINLIEST and FOLLOW me 23456

12.

Solve the following equation and find value of x;y : -5x+10y=1 ; x-2y=-8

Answer»

ANSWER:

MARK me as BRAINLIEST and FOLLOW me

23456

Discussion

13.	Line 1 and line intersect at o if a= 35⁰find all the values of b,c,d
Answer» ANSWER: BHAI PEHLE FOLLOW KAR do

13.

Line 1 and line intersect at o if a= 35⁰find all the values of b,c,d

Answer»

ANSWER:

BHAI PEHLE FOLLOW KAR do

Discussion

14.	The incomes of A and B are in the ratio 3:5 and their expenditures are in the ratio 2:3 . If A save Rs.8000 and B saves Rs.15000, then the income of A is plz ans fastly will mark u as the brainliest
Answer» ━━━━━━━━━━━━━━━━━━━━ ✴ Required ANSWER: ✏ GiveN: Ratio of incomes of A and B = 3:5 Ratio of their expenditures = 2:3 A saves Rs. 8000 And, B saves Rs. 15000 ✏ To FinD: Find the income of A ━━━━━━━━━━━━━━━━━━━━ ✴ How to solve? Considering the incomes of A and B in terms of any variable and same for their expenditures. We know that EXPENDITURE + SAVING = incomes. In the question, saving is given and ratio of income and expenditures are given. Form here, we can frame equations and solve the question. ━━━━━━━━━━━━━━━━━━━━ ✴ Solution: Let the incomes of A be 3x and B be 5x And, expenditures of A be 2y and B be 3y Saving of A = Rs.8000 and Saving of B = Rs. 15000 We know, Expenditures + Savings = Incomes So, let's write the equation for A and B, According to statement, ❇ A $\large{ \rm{ \longrightarrow \: 2y + 8000 = 3x}} \\ \\ \large{ \rm{ \longrightarrow \: 3x - 2y = 8000 - - - - (1)}}$ ❇ B $\large{ \rm{ \longrightarrow \: 3y + 15000 = 5x}} \\ \\ \large{ \rm{ \longrightarrow \: 5x - 3y = 15000 - - - - - (2)}}$ By using elimination method, MULTIPLYING EQ.(1) with 3, $\large{ \rm{ \longrightarrow \: 3(3x - 2y) = 24000}} \\ \\ \large{ \rm{ \longrightarrow \: 9x - 6y = 24000}}$ Multiplying eq.(2) with 2, $\large{ \rm{ \longrightarrow \: 2(5x - 3y) = 30000}} \\ \\ \large{ \rm{ \longrightarrow \: 10x - 6y = 30000}}$ Subtracting eq.(1) from eq.(2) $\large{ \rm{ \longrightarrow \: 10x - 6y - (9x - 6y) = 30000 - 24000}} \\ \\ \large{ \rm{ \longrightarrow \: 10x - \cancel{6y} - 9x + \cancel{ 6y }= 6000}} \\ \\ \large{ \rm{ \longrightarrow \: x = 6000}}$ So, Income of A, $\large{ \rm{ \longrightarrow \: \boxed{ \red{ \rm{3x = 18000}}}}} \\ \\ \large{ \therefore{ \underline{ \underline{ \purple{ \rm{Hence \: solved \: \dag}}}}}}$ ━━━━━━━━━━━━━━━━━━━━

14.

The incomes of A and B are in the ratio 3:5 and their expenditures are in the ratio 2:3 . If A save Rs.8000 and B saves Rs.15000, then the income of A is plz ans fastly will mark u as the brainliest

Answer»

━━━━━━━━━━━━━━━━━━━━

✴ Required ANSWER:

✏ GiveN:

Ratio of incomes of A and B = 3:5
Ratio of their expenditures = 2:3
A saves Rs. 8000
And, B saves Rs. 15000

✏ To FinD:

Find the income of A

━━━━━━━━━━━━━━━━━━━━

✴ How to solve?

Considering the incomes of A and B in terms of any variable and same for their expenditures. We know that EXPENDITURE + SAVING = incomes. In the question, saving is given and ratio of income and expenditures are given. Form here, we can frame equations and solve the question.

━━━━━━━━━━━━━━━━━━━━

✴ Solution:

Let the incomes of A be 3x and B be 5x

And, expenditures of A be 2y and B be 3y

Saving of A = Rs.8000 and Saving of B = Rs. 15000

We know, Expenditures + Savings = Incomes

So, let's write the equation for A and B,

According to statement,

❇ A

$\large{ \rm{ \longrightarrow \: 2y + 8000 = 3x}} \\ \\ \large{ \rm{ \longrightarrow \: 3x - 2y = 8000 - - - - (1)}}$

❇ B

$\large{ \rm{ \longrightarrow \: 3y + 15000 = 5x}} \\ \\ \large{ \rm{ \longrightarrow \: 5x - 3y = 15000 - - - - - (2)}}$

By using elimination method,

MULTIPLYING EQ.(1) with 3,

$\large{ \rm{ \longrightarrow \: 3(3x - 2y) = 24000}} \\ \\ \large{ \rm{ \longrightarrow \: 9x - 6y = 24000}}$

Multiplying eq.(2) with 2,

$\large{ \rm{ \longrightarrow \: 2(5x - 3y) = 30000}} \\ \\ \large{ \rm{ \longrightarrow \: 10x - 6y = 30000}}$

Subtracting eq.(1) from eq.(2)

$\large{ \rm{ \longrightarrow \: 10x - 6y - (9x - 6y) = 30000 - 24000}} \\ \\ \large{ \rm{ \longrightarrow \: 10x - \cancel{6y} - 9x + \cancel{ 6y }= 6000}} \\ \\ \large{ \rm{ \longrightarrow \: x = 6000}}$

So, Income of A,

$\large{ \rm{ \longrightarrow \: \boxed{ \red{ \rm{3x = 18000}}}}} \\ \\ \large{ \therefore{ \underline{ \underline{ \purple{ \rm{Hence \: solved \: \dag}}}}}}$

━━━━━━━━━━━━━━━━━━━━

Discussion

15.	The sum of the square of three consecutive number is 110.find the numbers
Answer» ANSWER: MARK me as BRAINLIEST and I will TELL you answer

15.

The sum of the square of three consecutive number is 110.find the numbers

Answer»

ANSWER:

MARK me as BRAINLIEST and I will TELL you answer

Discussion

16.	Prove that 5+under root 2 is an irrationl no....
Answer» Answer: 5+√2 is an IRRATIONAL no. Step-by-step explanation: the SUM of irrational or RATIONAL number is always irrational I HOPE it helps you!!!!!

16.

Prove that 5+under root 2 is an irrationl no....

Answer»

Answer:

5+√2 is an IRRATIONAL no.

Step-by-step explanation:

the SUM of irrational or RATIONAL number is always irrational

I HOPE it helps you!!!!!

Discussion

17.	15. A car covers 874 km in 16 hours. Find the speed of the car.please help me
Answer» GIVEN: Distance covered by the car = 874 km Time TAKEN by the car = 16 hours TO FIND: What is the speed of the car ? SOLUTION: Let the speed of the car be 's' km/hr We know that the formula for finding the speed of the car is:- $\large{\boxed{\bf{\star \: Speed = \dfrac{Distance}{Time} \: \star}}}$ According to QUESTION:- On PUTTING the given values in the formula, we get $\rm{\dashrightarrow s = \cancel\dfrac{874}{16} }$ $\bf{\dashrightarrow s = 54.625 \: km/hr }$ Speed = s = 54.625 km/hr ❝ Hence, the speed of the car is 54.625 km/hr ❞ ______________________ VERIFICATION: Put the values in the formula $\bf{\dashrightarrow 54.625 = \cancel\dfrac{ 874}{16} }$ $\bf{\dashrightarrow 54.625 = 54.625 }$ $\rm{ [L.H.S. = R.H.S.]}$ VERIFIED....

17.

15. A car covers 874 km in 16 hours. Find the speed of the car.please help me

Answer»

GIVEN:

Distance covered by the car = 874 km
Time TAKEN by the car = 16 hours

TO FIND:

What is the speed of the car ?

SOLUTION:

Let the speed of the car be 's' km/hr

We know that the formula for finding the speed of the car is:-

$\large{\boxed{\bf{\star \: Speed = \dfrac{Distance}{Time} \: \star}}}$

According to QUESTION:-

On PUTTING the given values in the formula, we get

$\rm{\dashrightarrow s = \cancel\dfrac{874}{16} }$

$\bf{\dashrightarrow s = 54.625 \: km/hr }$

Speed = s = 54.625 km/hr

❝ Hence, the speed of the car is 54.625 km/hr ❞

______________________

VERIFICATION:

Put the values in the formula

$\bf{\dashrightarrow 54.625 = \cancel\dfrac{ 874}{16} }$

$\bf{\dashrightarrow 54.625 = 54.625 }$

$\rm{ [L.H.S. = R.H.S.]}$

VERIFIED....

Discussion

18.	The common difference of the arithmetic progression-10,-6,-2,2
Answer» ANSWER: common difference in AP is d=a2-a1 Given that,-10,-6,-2,2 d=-6+10=4 Step-by-step explanation: HOPE it HELPS you frnd....

18.

The common difference of the arithmetic progression-10,-6,-2,2

Answer»

ANSWER: common difference in AP is

d=a2-a1

Given that,-10,-6,-2,2

d=-6+10=4

Step-by-step explanation:

HOPE it HELPS you frnd....

Discussion

19.	Are) The Sum offind numbersConsecutinumbenis thevethe
Answer» INCOMPLETE INFORMATION

Discussion

20.	How do we write twelve-sixths as a whole number ?
Answer» ✨✨Answer is here✨✨ ➡️✨✨It TAKES two one-sixths to make a THIRD. and we can see that there are 1×6=6 sixths in a whole.✨✨ ✔️✔️

20.

How do we write twelve-sixths as a whole number ?

Answer»

✨✨Answer is here✨✨

➡️✨✨It TAKES two one-sixths to make a THIRD. and we can see that there are 1×6=6 sixths in a whole.✨✨

✔️✔️

Discussion

21.	Pls help me.......its 10th Question
Answer» ANSWER: $+ or \: - \frac{11}{4} \\$ Step-by-step EXPLANATION: when U REMOVE MOD this is the answer

21.

Pls help me.......its 10th Question

Answer»

ANSWER:

$+ or \: - \frac{11}{4} \\$

Step-by-step EXPLANATION:

when U REMOVE MOD this is the answer

Discussion

22.	One hundred thousand is equivalent to ten lakhs (true or false)
Answer» ANSWER: YES is the answer of your QUESTION

22.

One hundred thousand is equivalent to ten lakhs (true or false)

Answer»

ANSWER:

YES is the answer of your QUESTION

Discussion

23.	Work out the sign of this ratio cos(-40°).first use cast diagram .
Answer» ANSWER:- Here's your answer .... .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . .. COS(-40)°=?

23.

Work out the sign of this ratio cos(-40°).first use cast diagram .

Answer»

ANSWER:-

Here's your answer

....

..

.

..

.

..

COS(-40)°=?

Discussion

24.	In two triangles ABC and PQR, AD and PM are medians. If AB=PQ, BC=QR and AD=PM, the. prove that triangle ABC is congruent to triangle PQR.Kindly give only authentic answers otherwise I will report it.
Answer» ✨✨Answer is here✨✨ ➡️✨✨see this PIC.......✨✨ ✔️✔️

24.

In two triangles ABC and PQR, AD and PM are medians. If AB=PQ, BC=QR and AD=PM, the. prove that triangle ABC is congruent to triangle PQR.Kindly give only authentic answers otherwise I will report it.

Answer»

✨✨Answer is here✨✨

➡️✨✨see this PIC.......✨✨

✔️✔️

Discussion

25.	18. Use Euclid's division algorithm to find the HCF of : 120 and 23.
Answer» Step-by-step EXPLANATION: HOPE it HELPS U BRO....

25.

18. Use Euclid's division algorithm to find the HCF of : 120 and 23.

Answer»

Step-by-step EXPLANATION:

HOPE it HELPS U BRO....

Discussion

26.	How do you find the volume of a cylinder
Answer» ✨✨Answer is here✨✨ ➡️✨✨see this PIC.......✨✨ ✔️✔️

26.

How do you find the volume of a cylinder

Answer»

✨✨Answer is here✨✨

➡️✨✨see this PIC.......✨✨

✔️✔️

Discussion

27.	Help Me Out Plz Maths Ncert #polynomials
Answer» ANSWER: i HOPE it will HELP you. BRO ..........

27.

Help Me Out Plz Maths Ncert #polynomials

Answer»

ANSWER:

i HOPE it will HELP you. BRO ..........

Discussion

28.	A girl pays Rs.16 for 2pens and 3 pencils .From a linear equation in two variables for the above data and represent it graphically.
Answer» Answer: 2x+ 3y=16 plz MARK as BRAINLIEST and FOLLOW me.✌✌✌

28.

A girl pays Rs.16 for 2pens and 3 pencils .From a linear equation in two variables for the above data and represent it graphically.

Answer»

Answer:

2x+ 3y=16

plz MARK as BRAINLIEST and FOLLOW me.✌✌✌

Discussion

29.	ABCD is a parallelogram with vertices A(x1,y1),B(x2,y2) and C(x3,y3).Find the coordinates of the fourth vertex D in terms of x1,x2,x3,y1,y2 and y3 .
Answer» ANSWER: The fourth vertex is D and the COORDINATES of D MUST be (X4, y4).

29.

ABCD is a parallelogram with vertices A(x1,y1),B(x2,y2) and C(x3,y3).Find the coordinates of the fourth vertex D in terms of x1,x2,x3,y1,y2 and y3 .

Answer»

ANSWER:

The fourth vertex is D and the COORDINATES of D MUST be (X4, y4).

Discussion

30.	Slove the quadratic equation for x .P²x²+(p²-q²)x-q²
Answer» ANSWER: p^2 x^2+p^2x-q^2x-q^2 Step-by-step EXPLANATION: HOPE IT IS HELPFUL TO YOU

30.

Slove the quadratic equation for x .P²x²+(p²-q²)x-q²

Answer»

ANSWER:

p^2 x^2+p^2x-q^2x-q^2

Step-by-step EXPLANATION:

HOPE IT IS HELPFUL TO YOU

Discussion

31.	Facłorize : 20' question based on quadraticpolynomial by spliting method.
Answer» Don't KNOW i don't know ANSWER

Discussion

32.	For solving the system of equation 2x + y +4 = 0 and2 + 3y + 7 = 0 by cross multiplication method, the equatisobtained will be:=144 = 1262112- 7= = 4-1461617 12-12-12View Core Concept and Topic
Answer» ANSWER: I have WRITTEN this WHOLE answer on Google check it out and yesss PLEASE Mark me as BRAINLIEST please please please please please please.... And Answer is right on Google

32.

For solving the system of equation 2x + y +4 = 0 and2 + 3y + 7 = 0 by cross multiplication method, the equatisobtained will be:=144 = 1262112- 7= = 4-1461617 12-12-12View Core Concept and Topic

Answer»

ANSWER:

I have WRITTEN this WHOLE answer on Google check it out and yesss PLEASE Mark me as BRAINLIEST please please please please please please....

And Answer is right on Google

Discussion

33.	What number should go in the space? Multiplying by 1.15 is the same as increasing by _____%
Answer» Answer: 15 Step-by-step EXPLANATION: x+x*15/100 =x(1+.15) 1.15x

33.

What number should go in the space? Multiplying by 1.15 is the same as increasing by _____%

Answer»

Answer:

15

Step-by-step EXPLANATION:

x+x*15/100

=x(1+.15)

1.15x

Discussion

34.	10. Tanay and Sumandecide to collect money for Independence Daycelebrations in their society. The society has 64 flats in all, out of whichpeople in 36 flats paid ₹175 each. If the total money collected is 10,360find the money contributed by the people of the remaining flats.Please solve it it’s urgent
Answer» ANSWER:₹4060 Step-by-step EXPLANATION:PEOPLE in 36 flats PAID ₹175 175*36=6300 10,360-6300 = ₹4060

34.

10. Tanay and Sumandecide to collect money for Independence Daycelebrations in their society. The society has 64 flats in all, out of whichpeople in 36 flats paid ₹175 each. If the total money collected is 10,360find the money contributed by the people of the remaining flats.Please solve it it’s urgent

Answer»

ANSWER:₹4060

Step-by-step EXPLANATION:PEOPLE in 36 flats PAID ₹175

175*36=6300

10,360-6300

= ₹4060

Discussion

35.	(3) x² + 5x = -(3 - x)
Answer» ANSWER: (-2+/-√5i)/3 Step-by-step explanation: 3x^2+5x-X+3=0; 3x^2+4x+3=0; X={-4+/-√(4^2-433)}/(2*3); X=(-4+/-√20i)/6; X=(-2+√5i)/3;(-2-√5i)/3

35.

(3) x² + 5x = -(3 - x)

Answer»

ANSWER:

(-2+/-√5i)/3

Step-by-step explanation:

3x^2+5x-X+3=0;

3x^2+4x+3=0;

X={-4+/-√(4^2-4*3*3)}/(2*3);

X=(-4+/-√20i)/6;

X=(-2+√5i)/3;(-2-√5i)/3

Discussion

36.	If alpha and beta are the zeroes of the polynomial 2x^2+7x+5, then value of alpha+beta+alpha*beta
Answer» Step-by-step EXPLANATION: give th root of equation 2x 2 −7x+5=0 are \alpha ,\betaα,β Compare it with: ax^2+bx+c=0ax 2 +bx+c=0 So: a=2 ,b=-7 and c=5 We KNOW that: \alpha+\beta=-b/aα+β=−b/a =7/2...............(1) \alpha\beta=c/aα∗β=c/a =5/2.............(2) Given \FRAC{\alpha^2}{\beta}+\frac{\beta^2}{\alpha} β α 2 + α β 2 \implies \frac{\alpha^3+\beta^3}{\alpha\beta}⟹ α∗β α 3 +β 3 \implies \frac{(\alpha+\beta)(\alpha^2-\alpha\beta+\beta^2)}{\alpha\beta}⟹ α∗β (α+β)(α 2 −α∗β+β 2 ) \implies \frac{(\alpha+\beta)([\alpha+\beta]^2-3\alpha\beta)}{\alpha\beta}⟹ α∗β (α+β)([α+β] 2 −3α∗β) From 1 and 2 \implies \frac{(7/2)(49/4-35/2)}{5/2}⟹ 5/2 (7/2)(49/4−3∗5/2) \implies \frac{(7/2)(19/4)}{5/2}⟹ 5/2 (7/2)(19/4) \implies \frac{133/8}{5/2}⟹ 5/2 133/8 \implies 133/82/5⟹133/8∗2/5 \implies 133/20⟹133/20 The answer is 133/20

36.

If alpha and beta are the zeroes of the polynomial 2x^2+7x+5, then value of alpha+beta+alpha*beta

Answer»

Step-by-step EXPLANATION:

give th root of equation

2x

2

−7x+5=0 are \alpha ,\betaα,β

Compare it with:

ax^2+bx+c=0ax

2

+bx+c=0

So:

a=2

,b=-7

and c=5

We KNOW that:

\alpha+\beta=-b/aα+β=−b/a

=7/2...............(1)

\alpha*\beta=c/aα∗β=c/a

=5/2.............(2)

Given

\FRAC{\alpha^2}{\beta}+\frac{\beta^2}{\alpha}

β

α

2

+

α

β

2

\implies \frac{\alpha^3+\beta^3}{\alpha*\beta}⟹

α∗β

α

3

+β

3

\implies \frac{(\alpha+\beta)(\alpha^2-\alpha*\beta+\beta^2)}{\alpha*\beta}⟹

α∗β

(α+β)(α

2

−α∗β+β

2

)

\implies \frac{(\alpha+\beta)([\alpha+\beta]^2-3\alpha*\beta)}{\alpha*\beta}⟹

α∗β

(α+β)([α+β]

2

−3α∗β)

From 1 and 2

\implies \frac{(7/2)(49/4-3*5/2)}{5/2}⟹

5/2

(7/2)(49/4−3∗5/2)

\implies \frac{(7/2)(19/4)}{5/2}⟹

5/2

(7/2)(19/4)

\implies \frac{133/8}{5/2}⟹

5/2

133/8

\implies 133/8*2/5⟹133/8∗2/5

\implies 133/20⟹133/20

The answer is 133/20

Discussion

37.	2704 square root by prime factorization
Answer» Here is UR ANSWER HOPE it will HELP you

37.

2704 square root by prime factorization

Answer»

Here is UR ANSWER

HOPE it will HELP you

Discussion

38.	Find the value of (81⁵)¼
Answer» HEY PLS MARK as BRAINLIEST

Discussion

39.	In 40 litres mixture of milk and aater the ratio of milk and water us 3:1 How much water should be added in the mixture so that the ratio of milk to water becomes 2:1
Answer» Answer: 5 litres Step-by-step explanation: QUANTITY of MIXTURE = 40 litres ratio of milk to water = 3:1 Add ratio = 3 + 1 = 4 Quantity of milk = (40 / 4) x 3 = 10 x 3 = 30 litres Quantity of water = (40 / 4) x 1 = 10 x 1 = 10 litres To make ratio 2:1 = quantity of milk should be double of water. Hence and quantity of water should be half of milk. milk = 30 litres hence water should be 15 litres. more water required = 15 - 10 = 5 litres Hence 5 more litres of water are required. Hope U are satisfied :} PLZ mark me brainliest and FOLLOW me.

39.

In 40 litres mixture of milk and aater the ratio of milk and water us 3:1 How much water should be added in the mixture so that the ratio of milk to water becomes 2:1

Answer»

Answer:

5 litres

Step-by-step explanation:

QUANTITY of MIXTURE = 40 litres

ratio of milk to water = 3:1

Add ratio = 3 + 1 = 4

Quantity of milk = (40 / 4) x 3 = 10 x 3 = 30 litres

Quantity of water = (40 / 4) x 1 = 10 x 1 = 10 litres

To make ratio 2:1 = quantity of milk should be double of water.

Hence and quantity of water should be half of milk.

milk = 30 litres

hence water should be 15 litres.

more water required = 15 - 10 = 5 litres

Hence 5 more litres of water are required.

Hope U are satisfied :} PLZ mark me brainliest and FOLLOW me.

Discussion

40.	If one root of 5x^2+13x+k=0is the reciprocal of the other than find k
Answer» Step-by-step explanation: If you liked the ANSWER PLEASE MARK it as BRAINLIEST. THANK you.

40.

If one root of 5x^2+13x+k=0is the reciprocal of the other than find k

Answer»

Step-by-step explanation:

If you liked the ANSWER PLEASE MARK it as BRAINLIEST.

THANK you.

Discussion

41.	Cos44°×cos16° - sin44×sin16 =
Answer» SOLUTION TO DETERMINE The value of COS 44° × cos 16° - sin 44° × sin 16° FORMULA TO BE IMPLEMENTED We are aware of the Trigonometric formula that cos ( X + y ) = cos x cos y - sin x sin y EVALUATION We know that cos ( x + y ) = cos x cos y - sin x sin y Taking x = 44° & y = 16° we GET cos 44° × cos 16° - sin 44° × sin 16° = cos ( 44° + 16° ) = cos 60° $\displaystyle\sf{ = \frac{<klux>1</klux>}{2} }$ ━━━━━━━━━━━━━━━━ Learn more from Brainly :- 1. If cosθ+secθ=√2,find the value of cos²θ+sec²θ brainly.in/question/25478419 2. Value of 3 + cot 80 cot 20/cot80+cot20 is EQUAL to brainly.in/question/17024513 3. In a triangle, prove that (b+c-a)(cotB/2+cotC/2)=2a×cotA/2 brainly.in/question/19793971

41.

Cos44°×cos16° - sin44×sin16 =

Answer»

SOLUTION

TO DETERMINE

The value of

COS 44° × cos 16° - sin 44° × sin 16°

FORMULA TO BE IMPLEMENTED

We are aware of the Trigonometric formula that

cos ( X + y ) = cos x cos y - sin x sin y

EVALUATION

We know that

cos ( x + y ) = cos x cos y - sin x sin y

Taking x = 44° & y = 16° we GET

cos 44° × cos 16° - sin 44° × sin 16°

= cos ( 44° + 16° )

= cos 60°

$\displaystyle\sf{ = \frac{<klux>1</klux>}{2} }$

━━━━━━━━━━━━━━━━

Learn more from Brainly :-

1. If cosθ+secθ=√2,find the value of cos²θ+sec²θ

brainly.in/question/25478419

2. Value of 3 + cot 80 cot 20/cot80+cot20 is EQUAL to

brainly.in/question/17024513

3. In a triangle, prove that (b+c-a)(cotB/2+cotC/2)=2a×cotA/2

brainly.in/question/19793971

Discussion

42.	Divide the sum of 18/15 and-7/15 by their difference.
Answer» Answer: 11/25 Step-by-step explanation: SUM = 18/15 + (-7/15) = 11/15 Difference = 18/15 - (-7/15) = 25/15 = 5/3 According to the question = 11/15 divided by 5/3 = 11/25 I HOPE this may HELP u Pls mark the answer as brainlist Pls follow me

42.

Divide the sum of 18/15 and-7/15 by their difference.

Answer»

Answer:

11/25

Step-by-step explanation:

SUM = 18/15 + (-7/15)

= 11/15

Difference = 18/15 - (-7/15)

= 25/15

= 5/3

According to the question

= 11/15 divided by 5/3

= 11/25

I HOPE this may HELP u

Pls mark the answer as brainlist

Pls follow me

Discussion

43.	1 by 19 + 5 by 19 + 10 by 19
Answer» ANSWER: here mate here is the answer for the QUESTION PLS mark as BRAINLIEST

43.

1 by 19 + 5 by 19 + 10 by 19

Answer»

ANSWER:

here mate here is the answer for the QUESTION PLS mark as BRAINLIEST

Discussion

44.	The incomes of A and B are in the ratio 3:5 and their expenditures are in the ratio 2:3 . If A save Rs.8000 and B saves Rs.15000, then the income of A is *
Answer» $\large\underline\pink{Given:-}$ RATIO of income of A and B ⇢ 3 : 5 Ratio of their expenditures ⇢ 2 : 3 A saver Rs. 8000 and B savers Rs. 15000 $\large\underline\pink{To find:-}$ find it's income of A ...? $\large\underline\pink{Solutions:-}$ LET the income of A be 3x and B be 5x. Let the expenditure of A be 2y and B be 3y. ✰ Then, SAVING of A is Rs. 8000 and Saving of B is Rs. 15000. »★ We have $\: \: \: \: \: \orange{\star \: \: \: {3x} \: - \: {2y} \: \: = \: \: {1800} \: \: \: \: \: \: \: ....{(i)}.}$ $\: \: \: \: \: \orange{\star \: \: \: {5x} \: - \: {3y} \: \: = \: \: {15000} \: \: \: \: \: \: \: ....{(<klux>II</klux>)}.}$ »★ Multiplying Eq. (i) by 3. and Eq. (ii) by 2. $\: \: \: \: \: \orange{\star \: \: \: {9x} \: - \: {6y} \: \: = \: \: {24000} \: \: \: \: \: \: \: ....{(iii)}.}$ $\: \: \: \: \: \orange{\star \: \: \: {10x} \: - \: {6y} \: \: = \: \: {30000} \: \: \: \: \: \: \: ....{(iv)}.}$ »★ Now, Subtracting Eq. (iii) and Eq. (iv) ${9x} \: - \: {6y} \: \: = \: \: {24000} \\ {10x} \: - \: {6y} \: \: = \: \: {30000} \\ \underline{- \: \: \: \: \: \: \: \: \: \: \: - \: \: \: \: \: \: = \: \: \: \: + \: \: \: \: \: \: \: \: } \\ {x} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \: \: \: {6000}$ »★ So, The income of A. $\: \: \: \: \: \leadsto \: \: \orange{{3x} \: \: = \: \: {3} \: \times \: {6000}}$ $\: \: \: \: \: \leadsto\orange{\: \: {3x} \: \: = \: \: {18000}}$ $\: \: \: \: \: \pink{\star \: \: \: Hence, }$ $\: \: \: \: \: \therefore \: \: the \: \: income \: \: of \: \: A \: \: is \: \: {18000}$ $\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star$

44.

The incomes of A and B are in the ratio 3:5 and their expenditures are in the ratio 2:3 . If A save Rs.8000 and B saves Rs.15000, then the income of A is *

Answer»

$\large\underline\pink{Given:-}$

RATIO of income of A and B ⇢ 3 : 5
Ratio of their expenditures ⇢ 2 : 3
A saver Rs. 8000 and B savers Rs. 15000

$\large\underline\pink{To find:-}$

find it's income of A ...?

$\large\underline\pink{Solutions:-}$

LET the income of A be 3x and B be 5x.
Let the expenditure of A be 2y and B be 3y.

✰ Then, SAVING of A is Rs. 8000 and Saving of B is Rs. 15000.

»★ We have

$\: \: \: \: \: \orange{\star \: \: \: {3x} \: - \: {2y} \: \: = \: \: {1800} \: \: \: \: \: \: \: ....{(i)}.}$

$\: \: \: \: \: \orange{\star \: \: \: {5x} \: - \: {3y} \: \: = \: \: {15000} \: \: \: \: \: \: \: ....{(<klux>II</klux>)}.}$

»★ Multiplying Eq. (i) by 3. and Eq. (ii) by 2.

$\: \: \: \: \: \orange{\star \: \: \: {9x} \: - \: {6y} \: \: = \: \: {24000} \: \: \: \: \: \: \: ....{(iii)}.}$

$\: \: \: \: \: \orange{\star \: \: \: {10x} \: - \: {6y} \: \: = \: \: {30000} \: \: \: \: \: \: \: ....{(iv)}.}$

»★ Now, Subtracting Eq. (iii) and Eq. (iv)

${9x} \: - \: {6y} \: \: = \: \: {24000} \\ {10x} \: - \: {6y} \: \: = \: \: {30000} \\ \underline{- \: \: \: \: \: \: \: \: \: \: \: - \: \: \: \: \: \: = \: \: \: \: + \: \: \: \: \: \: \: \: } \\ {x} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \: \: \: {6000}$

»★ So, The income of A.

$\: \: \: \: \: \leadsto \: \: \orange{{3x} \: \: = \: \: {3} \: \times \: {6000}}$

$\: \: \: \: \: \leadsto\orange{\: \: {3x} \: \: = \: \: {18000}}$

$\: \: \: \: \: \pink{\star \: \: \: Hence, }$

$\: \: \: \: \: \therefore \: \: the \: \: income \: \: of \: \: A \: \: is \: \: {18000}$

$\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star\star$

Discussion

45.	In a survey of 200 game lover it was found that 130 liked football 90 liked cricket and 20 did not like both games.i) how many persons were there who liked football as well as cricket
Answer» ANSWER: sgfdhdghchchfchgujgydhf Step-by-step EXPLANATION: djdujgjghfydhfjhdfjjfhfvzhdhffhhffjudrysgrorihshs

45.

In a survey of 200 game lover it was found that 130 liked football 90 liked cricket and 20 did not like both games.i) how many persons were there who liked football as well as cricket

Answer»

ANSWER:

sgfdhdghchchfchgujgydhf

Step-by-step EXPLANATION:

djdujgjghfydhfjhdfjjfhfvzhdhffhhffjudrysgrorihshs

Discussion

46.	If = {x: x is an integer such that 1
Answer» Answer: BRO NHI ata thanks jrur krna and bro follow me PLEASE

46.

If = {x: x is an integer such that 1

Answer»

Answer:

BRO NHI ata thanks jrur krna

and bro follow me PLEASE

Discussion

47.	Which of the following system of equations has infinitely manysolutionsad5x – 4y = 20, 7.5x – 6y = 302x - 3y = 5,3x - 4.5y = 7.52x + 5y - 3 = 0,32 + 7.54 - 4.5 = 0all of the above
Answer» Answer: it MUST be the first equations Step-by-step EXPLANATION: HOPE IT IS HELPFUL.

47.

Which of the following system of equations has infinitely manysolutionsad5x – 4y = 20, 7.5x – 6y = 302x - 3y = 5,3x - 4.5y = 7.52x + 5y - 3 = 0,32 + 7.54 - 4.5 = 0all of the above

Answer»

Answer:

it MUST be the first equations

Step-by-step EXPLANATION:

HOPE IT IS HELPFUL.

Discussion

48.	Sorry i am not going to right answer
Answer» ANSWER: for what and why you are ..... Step-by-step explanation: TELLING this ..... YOU MUST BE HAVING TRAGEDY IF NOT THEN I AM SORRY

48.

Sorry i am not going to right answer

Answer»

ANSWER:

for what and why you are .....

Step-by-step explanation:

TELLING this .....

YOU MUST BE HAVING TRAGEDY IF NOT THEN I AM SORRY

Discussion

49.	write with reason which of the following are finite set or infinite set, D=x/x=2n,n belongs to natural number
Answer» ANSWER: d=x/x=2n N, belongs to natural number. it is a FINITE SET . natural number STARTS from 0.so it belongs to natural number

49.

write with reason which of the following are finite set or infinite set, D=x/x=2n,n belongs to natural number

Answer»

ANSWER:

d=x/x=2n N, belongs to natural number.

it is a FINITE SET .

natural number STARTS from 0.so it belongs to natural number

Discussion

50.	If sin(36+Q)=cos(16+Q) then find Q where (36+Q) and (16+Q) are acute angles
Answer» Answer: sorry I can't understand the QUESTION Step-by-step EXPLANATION: please mark as brinialist please mark as brinialist please mark as brinialist please

50.

If sin(36+Q)=cos(16+Q) then find Q where (36+Q) and (16+Q) are acute angles

Answer»

Answer:

sorry I can't understand the QUESTION

Step-by-step EXPLANATION:

please mark as brinialist please mark as brinialist please mark as brinialist please

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

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Answer:

Hi mate here is your answer.

Key Points

Key POINTSA function can be represented verbally. For example, the circumference of a square is four times one of its sides. A function can be represented ALGEBRAICALLY. For example, 3x+6 3 x + 6 .

HOPE it is helpful and Mark it as a brainlist and follow me back.

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❇ A

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In 40 litres mixture of milk and aater the ratio of milk and water us 3:1 How much water should be added in the mixture so that the ratio of milk to water becomes 2:1

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Cos44°×cos16° - sin44×sin16 =

SOLUTION

Divide the sum of 18/15 and-7/15 by their difference.

1 by 19 + 5 by 19 + 10 by 19

The incomes of A and B are in the ratio 3:5 and their expenditures are in the ratio 2:3 . If A save Rs.8000 and B saves Rs.15000, then the income of A is *

✰ Then, SAVING of A is Rs. 8000 and Saving of B is Rs. 15000.

»★ We have

»★ Multiplying Eq. (i) by 3. and Eq. (ii) by 2.

»★ Now, Subtracting Eq. (iii) and Eq. (iv)

»★ So, The income of A.

In a survey of 200 game lover it was found that 130 liked football 90 liked cricket and 20 did not like both games.i) how many persons were there who liked football as well as cricket

If = {x: x is an integer such that 1

Which of the following system of equations has infinitely manysolutionsad5x – 4y = 20, 7.5x – 6y = 302x - 3y = 5,3x - 4.5y = 7.52x + 5y - 3 = 0,32 + 7.54 - 4.5 = 0all of the above​

Sorry i am not going to right answer

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If sin(36+Q)=cos(16+Q) then find Q where (36+Q) and (16+Q) are acute angles

Functions can be represented by dash ways

Theorem:Show that s(r,n)=s(r-1 , n-1)+(r-1)

Solve the following equation and find value of x;y : -5x+10y=1 ; x-2y=-8

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15. A car covers 874 km in 16 hours. Find the speed of the car.please help me

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Pls help me.......its 10th Question

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Work out the sign of this ratio cos(-40°).first use cast diagram .

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Help Me Out Plz Maths Ncert #polynomials

A girl pays Rs.16 for 2pens and 3 pencils .From a linear equation in two variables for the above data and represent it graphically.

ABCD is a parallelogram with vertices A(x1,y1),B(x2,y2) and C(x3,y3).Find the coordinates of the fourth vertex D in terms of x1,x2,x3,y1,y2 and y3 .

Facłorize : 20' question based on quadraticpolynomial by spliting method.

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(3) x² + 5x = -(3 - x)

Find the value of (81⁵)¼

Which of the following system of equations has infinitely manysolutionsad5x – 4y = 20, 7.5x – 6y = 302x - 3y = 5,3x - 4.5y = 7.52x + 5y - 3 = 0,32 + 7.54 - 4.5 = 0all of the above

write with reason which of the following are finite set or infinite set, D=x/x=2n,n belongs to natural number