332354 + Interview Questions in Secondary School in Math

1.	If 2cos a = x+1/x, prove that (x^2n +1)/(x^2n-1 + x) = cos na/cos(n-1)a
Answer» ANSWER: broooooooooooooooooo PLZ MARK as BRAINLIST plz plz plz plz plz plz plz plz then I will FOLLOW you

1.

If 2cos a = x+1/x, prove that (x^2n +1)/(x^2n-1 + x) = cos na/cos(n-1)a

Answer»

ANSWER:

broooooooooooooooooo PLZ MARK as BRAINLIST plz plz plz plz plz plz plz plz then I will FOLLOW you

Discussion

2.	sum of the two numbers is 15 and the difference between their squares is 15 a) what is the difference between the numbers. a) what is the difference between the numbers. b) what are the numbers
Answer» Step-by-step explanation: The SUM of two NUMBERS is 15 and the difference of their SQUARES is 15. The difference of the numbers is __________. Share Study later ANSWER Let the two numbers be a and B Thus (a+b)=15 ....(given) and (a 2 −b 2 )=15 ....(given) ⇒(a+b)(a−b)=15 ⇒15(a−b)=15 ⇒(a−b)=1 (difference of the numbers

2.

sum of the two numbers is 15 and the difference between their squares is 15 a) what is the difference between the numbers. a) what is the difference between the numbers. b) what are the numbers

Answer»

Step-by-step explanation:

The SUM of two NUMBERS is 15 and the difference of their SQUARES is 15. The difference of the numbers is __________.

Share

Study later

ANSWER

Let the two numbers be a and B

Thus (a+b)=15 ....(given)

and (a

2

−b

2

)=15 ....(given)

⇒(a+b)(a−b)=15

⇒15(a−b)=15

⇒(a−b)=1 (difference of the numbers

Discussion

3.	A helium atom is moving with the velocity v of 201 - 15j m/s (where i and j are unit vectors). What is itsspeed?Select one:OnO a. 5 m/sb. 15 m/sO c. 25 m/sd. 35 m/s
Answer» ANSWER: C) 25m/s Step-by-step explanation: RESULTANT VECTORS magnitude is given by $\sqrt{a^{2} + b^{2} }$ This will give $\sqrt{625 } = 25$

3.

A helium atom is moving with the velocity v of 201 - 15j m/s (where i and j are unit vectors). What is itsspeed?Select one:OnO a. 5 m/sb. 15 m/sO c. 25 m/sd. 35 m/s

Answer»

ANSWER:

C) 25m/s

Step-by-step explanation:

RESULTANT VECTORS magnitude is given by

$\sqrt{a^{2} + b^{2} }$

This will give

$\sqrt{625 } = 25$

Discussion

4.	a square and an equilateral triangle have an equal perimeter if a diagonalis 12root 2 cm. find area of triangle
Answer» a SQUARE and an equilateral triangle have an equal perimeter if a diagonalis 12root 2 CM. FIND area of triangle

4.

a square and an equilateral triangle have an equal perimeter if a diagonalis 12root 2 cm. find area of triangle

Answer»

a SQUARE and an equilateral triangle have an equal perimeter if a diagonalis 12root 2 CM. FIND area of triangle

Discussion

5.	Find the number whose 21% is 42
Answer» ANSWER: LET the no. of X $\frac{21}{100} \times x = 42 \\ x = 42 \times \frac{100}{21} \\ x = 200$

5.

Find the number whose 21% is 42

Answer»

ANSWER:

LET the no. of X

$\frac{21}{100} \times x = 42 \\ x = 42 \times \frac{100}{21} \\ x = 200$

Discussion

6.	The largest ot three consecutive numbers is x+1.then the smallest number isa)x+2b)x+1c)xd)x-1
Answer» ANSWER: x-1 Step-by-step EXPLANATION: HOPE it HELPS......

6.

The largest ot three consecutive numbers is x+1.then the smallest number isa)x+2b)x+1c)xd)x-1

Answer»

ANSWER:

x-1

Step-by-step EXPLANATION:

HOPE it HELPS......

Discussion

7.	4. Find the Q. D. for the following data.3, 16, 8, 15, 19, 11, 5, 17, 9, 5, 3.
Answer» Answer: 3 is the answer Step-by-step EXPLANATION: MARK me as BRAINLIEST

7.

4. Find the Q. D. for the following data.3, 16, 8, 15, 19, 11, 5, 17, 9, 5, 3.

Answer»

Answer:

3 is the answer

Step-by-step EXPLANATION:

MARK me as BRAINLIEST

Discussion

8.	4x⁵+3x³+5x²+3x+2 ಬಹುಪದೋಕ್ತಿಯ ಡಿಗ್ರಿ
Answer» 11 is the DEGREE of plynomial

8.

4x⁵+3x³+5x²+3x+2 ಬಹುಪದೋಕ್ತಿಯ ಡಿಗ್ರಿ

Answer»

11 is the DEGREE of plynomial

Discussion

9.	In figure, ABCD is a parallelogram. If P and Q are anytwo points on the sides AB and BC respectively suchthat ar(ACPD) = 20 cm2 then find ar(AAQD) in cm2.
Answer» ANSWER: se SEARCH in Google Step-by-step EXPLANATION: mark me has brainlist

9.

In figure, ABCD is a parallelogram. If P and Q are anytwo points on the sides AB and BC respectively suchthat ar(ACPD) = 20 cm2 then find ar(AAQD) in cm2.

Answer»

ANSWER:

se SEARCH in Google

Step-by-step EXPLANATION:

mark me has brainlist

Discussion

10.	Find area of triangle using herons formula if sides are 15cm,15cm,17cm
Answer» Area of Triangle (HERON's FORMULA) Area of Δ = $\sqrt{s (s - a) (s - <klux>B</klux>) (s - c)}$ where s (semi-perimeter) = $\frac{a + b + c}{2}$ GIVEN: a = b = 15 cm c = 17 cm To Find: Area of Δ Method: s = $\frac{a + b + c}{2}$ ⇒ s = $\frac{15 + 15 + 17}{2}$ ⇒ s = $\frac{47}{2}$ Area of Δ = $\sqrt{\frac{47}{2} (\frac{47}{2} - 15) (\frac{47}{2} - 15) (\frac{47}{2} - 17) }$ ⇒ Area = $\sqrt{\frac{47}{2} (\frac{47 - 30}{2}) (\frac{47 - 30}{2}) (\frac{47 - 34}{2}) }$ ⇒ Area = $\sqrt{\frac{47}{2} (\frac{17}{2}) (\frac{17}{2}) (\frac{13}{2}) }$ ⇒ Area = $\sqrt{\frac{47}{2} (\frac{17}{2})^{2}(\frac{13}{2}) }$ ⇒ Area = $\frac{17}{2} \sqrt{\frac{47}{2} \frac{13}{2} }$ ⇒ Area = $\frac{17}{2} \sqrt{\frac{611}{4} }$ ⇒ Area = $\frac{17}{4} \sqrt{611}$ ⇒ Area = $\frac{17}{4} X 24.718$ ⇒ Area = 4.25 X 24.718 cm² ⇒ Area of Triangle = 105.0515 cm²

10.

Find area of triangle using herons formula if sides are 15cm,15cm,17cm

Answer»

Area of Triangle (HERON's FORMULA)

Area of Δ = $\sqrt{s (s - a) (s - <klux>B</klux>) (s - c)}$

where s (semi-perimeter) = $\frac{a + b + c}{2}$

GIVEN:

a = b = 15 cm

c = 17 cm

To Find:

Area of Δ

Method:

s = $\frac{a + b + c}{2}$

⇒ s = $\frac{15 + 15 + 17}{2}$

⇒ s = $\frac{47}{2}$

Area of Δ = $\sqrt{\frac{47}{2} (\frac{47}{2} - 15) (\frac{47}{2} - 15) (\frac{47}{2} - 17) }$

⇒ Area = $\sqrt{\frac{47}{2} (\frac{47 - 30}{2}) (\frac{47 - 30}{2}) (\frac{47 - 34}{2}) }$

⇒ Area = $\sqrt{\frac{47}{2} (\frac{17}{2}) (\frac{17}{2}) (\frac{13}{2}) }$

⇒ Area = $\sqrt{\frac{47}{2} (\frac{17}{2})^{2}(\frac{13}{2}) }$

⇒ Area = $\frac{17}{2} \sqrt{\frac{47}{2} \frac{13}{2} }$

⇒ Area = $\frac{17}{2} \sqrt{\frac{611}{4} }$

⇒ Area = $\frac{17}{4} \sqrt{611}$

⇒ Area = $\frac{17}{4} X 24.718$

⇒ Area = 4.25 X 24.718 cm²

⇒ Area of Triangle = 105.0515 cm²

Discussion

11.	What will be the remainder if a polynomial f(x) is divided by (ax+b).
Answer» ANSWER: the ans is A more general theorem is: If F(x) is divided by ax + b (where a & b are constants and a is non-zero), the REMAINDER is f(-b/a).

11.

What will be the remainder if a polynomial f(x) is divided by (ax+b).

Answer»

ANSWER:

the ans is

A more general theorem is: If F(x) is divided by ax + b (where a & b are constants and a is non-zero), the REMAINDER is f(-b/a).

Discussion

12.	Divide ₹ 500 between Raj and Riya in the ratio of 3 : 2 we
Answer» ANSWER: DIVIDE ₹ 500 between Raj and Riya in the ratio of 3 : 2 =] 300/200

12.

Divide ₹ 500 between Raj and Riya in the ratio of 3 : 2 we

Answer»

ANSWER:

DIVIDE ₹ 500 between Raj and Riya in the ratio of 3 : 2

=] 300/200

Discussion

13.	Find the number which comes in place of question mark (2)options:a) 3b)12c)9d)105
Answer» Answer: OPTION d. 105 is the correct answer Step-by-step EXPLANATION: please follow me and mark me as brainlest

13.

Find the number which comes in place of question mark (2)options:a) 3b)12c)9d)105

Answer»

Answer:

OPTION d. 105 is the correct answer

Step-by-step EXPLANATION:

please follow me and mark me as brainlest

Discussion

14.	Find the value of n such that2/3(4n-1)-(2n-1+n/3)=1/3n+4/3
Answer» ANSWER: MARK me BRAINLIEST and FOLLOW me

14.

Find the value of n such that2/3(4n-1)-(2n-1+n/3)=1/3n+4/3

Answer»

ANSWER:

MARK me BRAINLIEST and FOLLOW me

Discussion

15.	ਤਹਿਲਾਂ ਦੀ ਉਮਰ ਦੀ ਜੇਬਰ ਉਸ ਦੀਵਰਤ ਉਮਰ 5 ਸਾਲ ਹੈ।Xਆ।ਨ ਵਿਸ਼ਾਲਵਸੀਲਾ
Answer» ANSWER: jurur Step-by-step EXPLANATION: guthdhdndjcjfu

15.

ਤਹਿਲਾਂ ਦੀ ਉਮਰ ਦੀ ਜੇਬਰ ਉਸ ਦੀਵਰਤ ਉਮਰ 5 ਸਾਲ ਹੈ।Xਆ।ਨ ਵਿਸ਼ਾਲਵਸੀਲਾ

Answer»

ANSWER:

jurur

Step-by-step EXPLANATION:

guthdhdndjcjfu

Discussion

16.	If a and b are the zeroes of the quadratic polynomial f(x)=ax^2+bx+c,then evaluate: 1/a-1/b
Answer» EXPLANATION. → a and B are the ZEROES of the QUADRATIC POLYNOMIAL = ax² + bx + C. → To find 1/a - 1/b. → Sum of zeroes of quadratic equation. → a + b = -b/a. → products of zeroes of quadratic equation. → ab = c/a. $\sf : \implies \: \dfrac{1}{ \alpha } - \: \dfrac{1}{ \beta } = \dfrac{ \beta - \alpha }{ \alpha \beta } = \dfrac{ - ( \alpha - \beta )}{ \alpha \beta } \\ \\ \sf : \implies \: let \: we \: assume \: that \\ \\\sf : \implies \: ( \alpha - \beta ) {}^{2} = ( \alpha + \beta ) {}^{2} + 4 \alpha \beta \\ \\ \sf : \implies \: ( \alpha - \beta ) {}^{2} = ( \frac{ - b}{a} ) {}^{2} + 4( \frac{c}{a}) \\ \\ \sf : \implies \: ( \alpha - \beta ) {}^{2} = \frac{ {b}^{2} }{ {a}^{2} } + \frac{4c}{a}$ $\sf : \implies \: ( \alpha - \beta ) = \sqrt{ \dfrac{ {b}^{2} }{ {a}^{2} } + \dfrac{4c}{a} } \\ \\ \sf : \implies \: ( \alpha - \beta ) = \sqrt{ \frac{ {b}^{2} + 4ac}{ {a}^{2} } } \\ \\ \sf : \implies \: ( \alpha - \beta ) = \frac{ \sqrt{ {b}^{2} + 4ac} }{a}$ $\sf : \implies \: \dfrac{1}{ \alpha } - \dfrac{1}{ \beta } = \dfrac{ - ( \alpha - \beta )}{ \alpha \beta } \\ \\ \sf : \implies \: \dfrac{ - \dfrac{ \sqrt{ {b}^{2} + 4ac} }{a} }{ \dfrac{c}{a} } = \frac{ - \sqrt{ {b}^{2} + 4ac} }{c}$

16.

If a and b are the zeroes of the quadratic polynomial f(x)=ax^2+bx+c,then evaluate: 1/a-1/b

Answer»

EXPLANATION.

→ a and B are the ZEROES of the QUADRATIC

POLYNOMIAL = ax² + bx + C.

→ To find 1/a - 1/b.

→ Sum of zeroes of quadratic equation.

→ a + b = -b/a.

→ products of zeroes of quadratic equation.

→ ab = c/a.

$\sf : \implies \: \dfrac{1}{ \alpha } - \: \dfrac{1}{ \beta } = \dfrac{ \beta - \alpha }{ \alpha \beta } = \dfrac{ - ( \alpha - \beta )}{ \alpha \beta } \\ \\ \sf : \implies \: let \: we \: assume \: that \\ \\\sf : \implies \: ( \alpha - \beta ) {}^{2} = ( \alpha + \beta ) {}^{2} + 4 \alpha \beta \\ \\ \sf : \implies \: ( \alpha - \beta ) {}^{2} = ( \frac{ - b}{a} ) {}^{2} + 4( \frac{c}{a}) \\ \\ \sf : \implies \: ( \alpha - \beta ) {}^{2} = \frac{ {b}^{2} }{ {a}^{2} } + \frac{4c}{a}$

$\sf : \implies \: ( \alpha - \beta ) = \sqrt{ \dfrac{ {b}^{2} }{ {a}^{2} } + \dfrac{4c}{a} } \\ \\ \sf : \implies \: ( \alpha - \beta ) = \sqrt{ \frac{ {b}^{2} + 4ac}{ {a}^{2} } } \\ \\ \sf : \implies \: ( \alpha - \beta ) = \frac{ \sqrt{ {b}^{2} + 4ac} }{a}$

$\sf : \implies \: \dfrac{1}{ \alpha } - \dfrac{1}{ \beta } = \dfrac{ - ( \alpha - \beta )}{ \alpha \beta } \\ \\ \sf : \implies \: \dfrac{ - \dfrac{ \sqrt{ {b}^{2} + 4ac} }{a} }{ \dfrac{c}{a} } = \frac{ - \sqrt{ {b}^{2} + 4ac} }{c}$

Discussion

17.	A vertical round cone is 15 cm in height and 6 cm in diameter. A plane parallel to the ground divides the cone evenly along the middle of the cone. What is the volume of the headless part of the cone?
Answer» ANSWER: nbfjs APPRECIABLE IDIOSYNCRASY is CM

17.

A vertical round cone is 15 cm in height and 6 cm in diameter. A plane parallel to the ground divides the cone evenly along the middle of the cone. What is the volume of the headless part of the cone?

Answer»

ANSWER:

nbfjs APPRECIABLE IDIOSYNCRASY is CM

Discussion

18.	Solve this fastplease help don't post irrelative answers
Answer» ANSWER: $d \: \: \: \: {3}^{ - 12}$ Step-by-step EXPLANATION: ${27}^{ - 4}$ ${ {3}^{3} }^{ - 4}$ ${3}^{3 \times - 4}$ ${3}^{ - 12}$ Answer...MARK me BRAINLIEST and FOLLOW me

18.

Solve this fastplease help don't post irrelative answers

Answer»

ANSWER:

$d \: \: \: \: {3}^{ - 12}$

Step-by-step EXPLANATION:

${27}^{ - 4}$

${ {3}^{3} }^{ - 4}$

${3}^{3 \times - 4}$

${3}^{ - 12}$

Answer...MARK me BRAINLIEST and FOLLOW me

Discussion

19.	Prove that heron formula
Answer» $\huge\pink{\boxed{\green{\mathfrak{\overbrace{\underbrace{\fcolorbox{red}{aqua}{\underline{\pink{✯Answer✯}}}}}}}}}$ The s in Heron's formula denotes the semi-perimeter of a TRIANGLE, whose area has to be evaluated. Semi-perimeter is equal to the sum of all three sides of the triangle DIVIDED by 2. Where a, b and c are three sides of a triangle.

19.

Prove that heron formula

Answer»

$\huge\pink{\boxed{\green{\mathfrak{\overbrace{\underbrace{\fcolorbox{red}{aqua}{\underline{\pink{✯Answer✯}}}}}}}}}$

The s in Heron's formula denotes the semi-perimeter of a TRIANGLE, whose area has to be evaluated. Semi-perimeter is equal to the sum of all three sides of the triangle DIVIDED by 2. Where a, b and c are three sides of a triangle.

Discussion

20.	প্রথম অধ্যায় আল কুরআনের পরিচয় ও ইতিহাস 2য় পাঠ জীবন সমস্যা সমাধানে আল কুরআন অষ্টম শ্রেণী
Answer» ANSWER: which is this LANGUAGE

20.

প্রথম অধ্যায় আল কুরআনের পরিচয় ও ইতিহাস 2য় পাঠ জীবন সমস্যা সমাধানে আল কুরআন অষ্টম শ্রেণী

Answer»

ANSWER:

which is this LANGUAGE

Discussion

21.	Follow the example and do the same using YET:Example: She has been in the shop. (buy anything) - She has been in the shop but she hasn’t bought anything YET. 1. I’ve written to them three times. (not reply) ……………………………………………………………………………………………... 2. I’ve asked you again and again. (not do it) ……………………………………………………………………………………………... 3. I lent him one thousand rupeeslast month. (not give it back) ……………………………………………………………………………………………...4. He lost his wallet three days ago. (not find it) ……………………………………………………………………………………………... 5. He borrowed my book last month. (not give it back) ……………………………………………………………………………………………...6. She went to Los Angeles six months ago. (not return it) ……………………………………………………………………………………………... 7. She gave me twenty rupees a week ago. (not return it) ……………………………………………………………………………………………... 8. I finished reading my library books a long time ago. (not change them) ……………………………………………………………………………………………... 9. She went to the bus-stop half an hour ago. (the bus / not come) ……………………………………………………………………………………………...10. He’s still studying that lesson. (not learn it) ……………………………………………………………………………………
Answer» ANSWER: SORRY don't know Step-by-step EXPLANATION: GO To GOOGLE

21.

Follow the example and do the same using YET:Example: She has been in the shop. (buy anything) - She has been in the shop but she hasn’t bought anything YET. 1. I’ve written to them three times. (not reply) ……………………………………………………………………………………………... 2. I’ve asked you again and again. (not do it) ……………………………………………………………………………………………... 3. I lent him one thousand rupeeslast month. (not give it back) ……………………………………………………………………………………………...4. He lost his wallet three days ago. (not find it) ……………………………………………………………………………………………... 5. He borrowed my book last month. (not give it back) ……………………………………………………………………………………………...6. She went to Los Angeles six months ago. (not return it) ……………………………………………………………………………………………... 7. She gave me twenty rupees a week ago. (not return it) ……………………………………………………………………………………………... 8. I finished reading my library books a long time ago. (not change them) ……………………………………………………………………………………………... 9. She went to the bus-stop half an hour ago. (the bus / not come) ……………………………………………………………………………………………...10. He’s still studying that lesson. (not learn it) ……………………………………………………………………………………

Answer»

ANSWER:

SORRY don't know

Step-by-step EXPLANATION:

GO To GOOGLE

Discussion

22.	Please help me with this question guys.
Answer» ANSWER: 1) ab=a bd=dc ad=ad I am SORRY i just KNOW this answer

22.

Please help me with this question guys.

Answer»

ANSWER:

1) ab=a

bd=dc

ad=ad

I am SORRY i just KNOW this answer

Discussion

23.	Solving by factorizaton methodwhat the roots of the givenquadratic equation:-x2+x-20=0are the..
Answer» Step-by-step explanation: 4.8/5 61 x² + x - 20 = 0 splitting the middle term , x² + 5X - 4x - 20 = 0 x( x + 5 ) - 4( x + 5 ) = 0 ( x + 5 )( x - 4 ) = 0 x + 5 = 0 or x - 4 = 0 x = -5 or x = 4 Therefore , Roots of given quadratic equation are -5 , 4 I hope this HELPS you.

23.

Solving by factorizaton methodwhat the roots of the givenquadratic equation:-x2+x-20=0are the..

Answer»

Step-by-step explanation:

4.8/5

61

x² + x - 20 = 0

splitting the middle term ,

x² + 5X - 4x - 20 = 0

x( x + 5 ) - 4( x + 5 ) = 0

( x + 5 )( x - 4 ) = 0

x + 5 = 0 or x - 4 = 0

x = -5 or x = 4

Therefore ,

Roots of given quadratic equation are -5 , 4

I hope this HELPS you.

Discussion

24.	When the two lines intersect each other than the pair of opposite angles formed are
Answer» Answer: 90 DEGREE MARK me BRAINLIEST

24.

When the two lines intersect each other than the pair of opposite angles formed are

Answer»

Answer:

90 DEGREE

MARK me BRAINLIEST

Discussion

25.	3)4)40 + 10 =35 + 7 =40 - 10 =3035 - 7 =- 10 =- 7 =60 - 10 =- 770 - 10 =ko- 7:. 40 -10=И.: 35II. Can you compare the relation betion
Answer» Step-by-step EXPLANATION: हाय फ्रेंड्स सॉरी सॉरी सॉरी सॉरी

25.

3)4)40 + 10 =35 + 7 =40 - 10 =3035 - 7 =- 10 =- 7 =60 - 10 =- 770 - 10 =ko- 7:. 40 -10=И.: 35II. Can you compare the relation betion

Answer»

Step-by-step EXPLANATION:

हाय फ्रेंड्स सॉरी सॉरी सॉरी सॉरी

Discussion

26.	A) Calculate the probability of picking a prime number from a lot containing the first100 natural numbers.
Answer» Answer: 25/100 or 1/4 Step-by-step explanation: there are a total of 25 prime NUMBERS between 1 to 100. so there may be 25 PROBABILITIES hope this helps you. PLEASE MARK me brainliest

26.

A) Calculate the probability of picking a prime number from a lot containing the first100 natural numbers.

Answer»

Answer:

25/100 or 1/4

Step-by-step explanation:

there are a total of 25 prime NUMBERS between 1 to 100. so there may be 25 PROBABILITIES

hope this helps you. PLEASE MARK me brainliest

Discussion

27.	X-5y=2 a. (-2, -2)b. (-2, 4)c. (1, -3)d. (3, 0)e. (12, 2)f. (20, 4)
Answer» Step-by-step EXPLANATION: (-2, 4) C. (1, -3) d. (3, 0) e. (12, 2) f. (20, 4)

27.

X-5y=2 a. (-2, -2)b. (-2, 4)c. (1, -3)d. (3, 0)e. (12, 2)f. (20, 4)

Answer»

Step-by-step EXPLANATION:

(-2, 4)

C. (1, -3)

d. (3, 0)

e. (12, 2)

f. (20, 4)

Discussion

28.	Perimeter of a rectangle
Answer» ANSWER: PERIMETER of RECTANGLE = LENGTH × BREATH

28.

Perimeter of a rectangle

Answer»

ANSWER:

PERIMETER of RECTANGLE = LENGTH × BREATH

Discussion

29.	2×4=8. 1×4=4=8-4. 0×4=0=4-4. -1×4=-4=0-4. -2×4=-8=-4-4. based on the above pattern ,find the value of the following. (-3)×9
Answer» ANSWER: sorrujdjsiensjwiwowk

29.

2×4=8. 1×4=4=8-4. 0×4=0=4-4. -1×4=-4=0-4. -2×4=-8=-4-4. based on the above pattern ,find the value of the following. (-3)×9

Answer»

ANSWER:

sorrujdjsiensjwiwowk

Discussion

30.	Please tell me tha answer with steps
Answer» ANSWER: hope this HELPS. i did it STEP by step. you can ask if you DONT understand something :)

30.

Please tell me tha answer with steps

Answer»

ANSWER:

hope this HELPS. i did it STEP by step. you can ask if you DONT understand something :)

Discussion

31.	Find the number which comes in place of the question mark(?)
Answer» Answer: 400 Step-by-step EXPLANATION: HOPE it HELPS.

31.

Find the number which comes in place of the question mark(?)

Answer»

Answer:

400

Step-by-step EXPLANATION:

HOPE it HELPS.

Discussion

32.	If the zeros of the quadratic polynomial x2+(a+1)x+b are 2 and -3 then
Answer» ANSWER: FIRST PUT value of X=2 then put the value of X= -3 solve both the equation you will get the value of a and B

32.

If the zeros of the quadratic polynomial x2+(a+1)x+b are 2 and -3 then

Answer»

ANSWER:

FIRST PUT value of X=2 then put the value of X= -3

solve both the equation you will get the value of a and B

Discussion

33.	A circular well dug diameter 120cm depth 950cm volume the mud removed make weel
Answer» A circular WELL dug diameter 120cm depth 950cm VOLUME the MUD REMOVED MAKE weel

Discussion

34.	If the sum of m terms of A.P is n. The sum of n term is n. Find the sum of (m+n) term
Answer» ANSWER: Let a be the FIRST TERM and d be the common difference of the given AP. Then, S n = 2 n [2a+(n−1)d] Given, S m =n 2 m [2a+(m−1)d]=n 2am+m(m−1)d=2n ...........(1) S n =m 2 n [2a+(n−1)d]=m 2an+n(n−1)d=2m ..........(2) On subtracting 2 from 1, we get, 2a(m−n)+[(m 2 −n 2 )−(m−n)]d=2(n−m) (m−n)[2a+(m+n−1)d]=2(n−m) 2a+(m+n−1)d=−2 ..........(3) Sum of (m+n) TERMS of the given AP S m+n = 2 m+n [2a+(m+n−1)d] = 2 m+n (−2)=−(m+n) Step-by-step explanation:

34.

If the sum of m terms of A.P is n. The sum of n term is n. Find the sum of (m+n) term

Answer»

ANSWER:

Let a be the FIRST TERM and d be the common difference of the given AP. Then,

S

n

=

2

n

[2a+(n−1)d]

Given,

S

m

=n

2

m

[2a+(m−1)d]=n

2am+m(m−1)d=2n ...........(1)

S

n

=m

2

n

[2a+(n−1)d]=m

2an+n(n−1)d=2m ..........(2)

On subtracting 2 from 1, we get,

2a(m−n)+[(m

2

−n

2

)−(m−n)]d=2(n−m)

(m−n)[2a+(m+n−1)d]=2(n−m)

2a+(m+n−1)d=−2 ..........(3)

Sum of (m+n) TERMS of the given AP

S

m+n

=

2

m+n

[2a+(m+n−1)d]

=

2

m+n

(−2)=−(m+n)

Step-by-step explanation:

Discussion

35.	Find the value of y +x in the given figure
Answer» ANSWER: (B) 120° is the answer.

35.

Find the value of y +x in the given figure

Answer»

ANSWER:

(B) 120° is the answer.

Discussion

36.	How many numbers are there between 999 which are divisible by both 2 and 5? Arithmetic progressionclass 10th
Answer» Step-by-step explanation: how many NUMBERS are there between 999 which are divisible by both 2 and 5? ARITHMETIC PROGRESSION class 10th

36.

How many numbers are there between 999 which are divisible by both 2 and 5? Arithmetic progressionclass 10th

Answer»

Step-by-step explanation:

how many NUMBERS are there between 999 which are divisible by both 2 and 5? ARITHMETIC PROGRESSION

class 10th

Discussion

37.	In the cylindrical container, the base radius is 8 cm. If the height of the water level is20 cm, find the volume of the water in the container.
Answer» ANSWER: HELLO Step-by-step EXPLANATION: PLEASE tell me a answer of the question

37.

In the cylindrical container, the base radius is 8 cm. If the height of the water level is20 cm, find the volume of the water in the container.

Answer»

ANSWER:

HELLO

Step-by-step EXPLANATION:

PLEASE tell me a answer of the question

Discussion

38.	स्क्वेयर रूट 7 माइनस स्क्वेयर रूट 5 बाय स्क्वेयर रूट 7 प्लस 12 रूट 5
Answer» ANSWER: UTTAR hai 12 MUJHE pata Nahin magar bhi Step-by-step EXPLANATION: ..... ...........??? ???!!!

38.

स्क्वेयर रूट 7 माइनस स्क्वेयर रूट 5 बाय स्क्वेयर रूट 7 प्लस 12 रूट 5

Answer»

ANSWER:

UTTAR hai 12 MUJHE pata Nahin magar bhi

Step-by-step EXPLANATION:

.....

...........???

???!!!

Discussion

39.	Find the cubic solution of x3 + x2 - 20x + 18
Answer» ANSWER: x5-20x+18 it is correct answer Step-by-step EXPLANATION: MARK as brainliest if it helps you

39.

Find the cubic solution of x3 + x2 - 20x + 18

Answer»

ANSWER:

x5-20x+18

it is correct answer

Step-by-step EXPLANATION:

MARK as brainliest if it helps you

Discussion

40.	sum of 2 numbers is 15 and their difference between their squares is 15 what is the difference between the number
Answer» Step-by-step EXPLANATION: x+y = 15 ; x = 15-y the ANSWER would be one 1

40.

sum of 2 numbers is 15 and their difference between their squares is 15 what is the difference between the number

Answer»

Step-by-step EXPLANATION:

x+y = 15 ; x = 15-y the ANSWER would be one 1

Discussion

41.	the momentum of a body varies with time according to the equation P is equal to 2 T plus 1 (kgms^-1). the force acting on the body is equal to????
Answer» ANSWER: PLEASE CLARIFY the QUESTION I'm not GETTING it

41.

the momentum of a body varies with time according to the equation P is equal to 2 T plus 1 (kgms^-1). the force acting on the body is equal to????

Answer»

ANSWER:

PLEASE CLARIFY the QUESTION I'm not GETTING it

Discussion

42.	Please tell me tha answer
Answer» Answer: 628 Step-by-step EXPLANATION: HOPE it HELPS.

42.

Please tell me tha answer

Answer»

Answer:

628

Step-by-step EXPLANATION:

HOPE it HELPS.

Discussion

43.	Express S={0,14,9,16} in set builder form
Answer» A={X/X is 0,14,9,16} I THINK this is a WRITE answer mark me as brainliest and THANK and RATE my answer.. please

43.

Express S={0,14,9,16} in set builder form

Answer»

A={X/X is 0,14,9,16}

I THINK this is a WRITE answer mark me as brainliest and THANK and RATE my answer.. please

Discussion

44.	Which is the following numbers is perfect cube
Answer» A perfect CUBE is a number that is the cube of an INTEGER. examples of perfect cubes are 1, 8, 27, 64, 125, 216, 343.....etC

44.

Which is the following numbers is perfect cube

Answer»

A perfect CUBE is a number that is the cube of an INTEGER.

examples of perfect cubes are 1, 8, 27, 64, 125, 216, 343.....etC

Discussion

45.	Draw the rough figure for the linear polynomial P(x) = x+3 ?
Answer» Step-by-step EXPLANATION: I hope will HELP you please as MARK me BRAINLIES

45.

Draw the rough figure for the linear polynomial P(x) = x+3 ?

Answer»

Step-by-step EXPLANATION:

I hope will HELP you

please as MARK me BRAINLIES

Discussion

46.	दिव्या लीव ऑफ फ्लॉक 10 ब्रैकेट वन बाय हंड्रेड
Answer» Step-by-step EXPLANATION: निगल डायल सेंटर चमक बसिया गोल्डन

46.

दिव्या लीव ऑफ फ्लॉक 10 ब्रैकेट वन बाय हंड्रेड

Answer»

Step-by-step EXPLANATION:

निगल डायल सेंटर चमक बसिया गोल्डन

Discussion

47.	Question :Situation- I took time away from preparing for my Quiz competition to help two of myneighbourhood Inends for their class exam. However, when I needed some help with my Sciencesurvey, none of them volunteered, I felt burt and disappointed.Response-a) No.3b) No.5e) No. 1d) No 4IL Paced on your understanding of Houseplant Life Lessons, identify the person suitable
Answer» CORRECT ANSWER is No.1

Discussion

48.	A quadratic polynomial whose zeros are -4 and -5 i
Answer» ANSWER: ${x}^{2} + 9x + 20$ Step-by-step EXPLANATION: ${x}^{2} - ( - 4 - 5)x + ( - 4)( - 5) \\ = {x }^{2} - ( - 9)x + 20 \\ = {x}^{2} + 9x + 20$

48.

A quadratic polynomial whose zeros are -4 and -5 i

Answer»

ANSWER:

${x}^{2} + 9x + 20$

Step-by-step EXPLANATION:

${x}^{2} - ( - 4 - 5)x + ( - 4)( - 5) \\ = {x }^{2} - ( - 9)x + 20 \\ = {x}^{2} + 9x + 20$

Discussion

49.	the numerator of fraction is 6 less than the denominator. if the sum of numerator and denominator is 22.find the fraction.
Answer» Answer: 8/14 Step-by-step explanation: LET N be the numerator D be the denominator. given, N+6=D given, N+D =22 N+(N+6)=22 (BCZ N+6=D) 2N+6=22 2N=22-6 N=16/2 N=8 therefore, D=8+6=14 thus, FRACTION= 8/14

49.

the numerator of fraction is 6 less than the denominator. if the sum of numerator and denominator is 22.find the fraction.

Answer»

Answer:

8/14

Step-by-step explanation:

LET N be the numerator

D be the denominator.

given, N+6=D

given, N+D =22

N+(N+6)=22 (BCZ N+6=D)

2N+6=22

2N=22-6

N=16/2

N=8

therefore, D=8+6=14

thus, FRACTION= 8/14

Discussion

50.	What is the mathematical pastime known as the king of games
Answer» ANSWER: Recreational mathematics is mathematics carried out for recreation (entertainment) rather than as a strictly research and application-based PROFESSIONAL activity or as a part of a STUDENT's FORMAL education. Although it is not necessarily limited to being an endeavor for AMATEURS, many topics in this field require no knowledge of advanced mathematics. Recreational mathematics involves mathematical puzzles and games, often appealing to children and untrained adults, inspiring their further study of the subject.[1]

50.

What is the mathematical pastime known as the king of games

Answer»

ANSWER:

Recreational mathematics is mathematics carried out for recreation (entertainment) rather than as a strictly research and application-based PROFESSIONAL activity or as a part of a STUDENT's FORMAL education. Although it is not necessarily limited to being an endeavor for AMATEURS, many topics in this field require no knowledge of advanced mathematics. Recreational mathematics involves mathematical puzzles and games, often appealing to children and untrained adults, inspiring their further study of the subject.[1]

Discussion

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