332354 + Interview Questions in Secondary School in Math

1.	Which of these is the next number in the following series 18,10,6,4
Answer» Answer: 3 Step-by-step explanation: Each term is divided by 2 and then INCREASED by 1 to OBTAIN the next term.... Missing term =(4÷2)+1=3. IF IT IS HELPFUL THAN PLEASE MARK ME AS BRAINLIST.... PLS

1.

Which of these is the next number in the following series 18,10,6,4

Answer»

Answer:

3

Step-by-step explanation:

Each term is divided by 2 and then INCREASED by

1 to OBTAIN the next term....

Missing term =(4÷2)+1=3.

IF IT IS HELPFUL THAN PLEASE MARK ME AS BRAINLIST.... PLS

Discussion

2.	-31. Expross as a rational number with denominator5
Answer» ANSWER: bhai QUESTION samjh me nahi aaya kya ye -3/5 HAI ???

2.

-31. Expross as a rational number with denominator5

Answer»

ANSWER:

bhai QUESTION samjh me nahi aaya

kya ye -3/5 HAI ???

Discussion

3.	Find out whether the following pair
Answer» ANSWER: PLZ write full QUES don't write half

3.

Find out whether the following pair

Answer»

ANSWER:

PLZ write full QUES don't write half

Discussion

4.	Tow diffrences b/w sets and collection
Answer» Step-by-step explanation: here's your answer SET guarantees that the COLLECTION will contain unique elements (no duplicates). A Collection does not guarantee this. The Set interface contains only methods inherited from Collection and adds the restriction that duplicate elements are prohibited. ... Two Set INSTANCES are EQUAL if they contain the same elements hope it's helpful for you ☺️

4.

Tow diffrences b/w sets and collection

Answer»

Step-by-step explanation:

here's your answer

SET guarantees that the COLLECTION will contain unique elements (no duplicates). A Collection does not guarantee this. The Set interface contains only methods inherited from Collection and adds the restriction that duplicate elements are prohibited. ... Two Set INSTANCES are EQUAL if they contain the same elements

hope it's helpful for you ☺️

Discussion

5.	Give any three pairs of co-prime numbers
Answer» ANSWER: Any 3 PAIR can be -3&7 -6&17 -5&9

5.

Give any three pairs of co-prime numbers

Answer»

ANSWER:

Any 3 PAIR can be

-3&7

-6&17

-5&9

Discussion

6.	Ram has 18 coins in the denominations of rs1,rs2, rs5. If their total value isrs54 and the number ofrs2 coins are greater than that ofrs5coins then find the number ofrs1 coins with him
Answer» Answer: Let RS. 1 be x, rs.2 be y, rs. 5 be z. ATQ, (x+y+z= 18) first equation (x+y+2+z x 5= 54). second equation (y+4z=36) given, (y > z) z=7 and y= 8 x= 18-8-7= 18-15= 3 so, x=3 Hence, rs.1 coins are 3, rs.2 coins are 8 and rs.5 coins are 7. mark this ANS as brilliantist and I will FOLLOW you mark this ans as brilliantist and I will follow you thankyou mark this ans as brilliantist and I will follow you thankyou

6.

Ram has 18 coins in the denominations of rs1,rs2, rs5. If their total value isrs54 and the number ofrs2 coins are greater than that ofrs5coins then find the number ofrs1 coins with him

Answer»

Answer:

Let RS. 1 be x, rs.2 be y, rs. 5 be z.

ATQ,

(x+y+z= 18) first equation

(x+y+2+z x 5= 54). second equation

(y+4z=36)

given, (y > z)

z=7 and y= 8

x= 18-8-7= 18-15= 3

so, x=3

Hence, rs.1 coins are 3, rs.2 coins are 8 and rs.5 coins are 7.

mark this ANS as brilliantist and I will FOLLOW you

mark this ans as brilliantist and I will follow you thankyou

Discussion

7.	Round off 1135 nearest to 10
Answer» Answer: 1140 Step-by-step EXPLANATION:

7.

Round off 1135 nearest to 10

Answer»

Answer:

1140

Step-by-step EXPLANATION:

Discussion

8.	2. If a and B are the zeros of the quadratic polynomial f (x)=ax2+bx+c(i)a-B
Answer» Step-by-step explanation: Sum of the roots of the given equation =α+β=a−b ...(1) Product of the roots of the given equation =αβ=−ac ....(2) βα2+αβ2 =αβα3+β3=αβ(α+β)(α2−αβ+β2)=αβ(α+β)((α+β)2−2αβ−αβ)=αβ(α+β)((α+β)2−3αβ) ....(3) Substituting (1),(2) in (3), we get βα2+αβ2=−c/a(−b/a)((−b/a)2−3(−c/a))=cb[a2 hope it helped you!!!:) if it FULFILLED your need PLS mark it as brainliest

8.

2. If a and B are the zeros of the quadratic polynomial f (x)=ax2+bx+c(i)a-B

Answer»

Step-by-step explanation:

Sum of the roots of the given equation =α+β=a−b ...(1)

Product of the roots of the given equation =αβ=−ac ....(2)

βα2+αβ2 =αβα3+β3=αβ(α+β)(α2−αβ+β2)=αβ(α+β)((α+β)2−2αβ−αβ)=αβ(α+β)((α+β)2−3αβ) ....(3)

Substituting (1),(2) in (3), we get

βα2+αβ2=−c/a(−b/a)((−b/a)2−3(−c/a))=cb[a2

hope it helped you!!!:)

if it FULFILLED your need PLS mark it as brainliest

Discussion

9.	An elevator decends into a mine shaft at the rate of 5metre perminute. What will be it's position after 2 hour ?
Answer» Step-by-step explanation: metre PER minute = 5 m POSITIONS. after 2 HOUR = 60 × 2 = 120 minute total minute. = 120 minutes metre per minute = 5 m 120× 5 m 600 m down to its position

9.

An elevator decends into a mine shaft at the rate of 5metre perminute. What will be it's position after 2 hour ?

Answer»

Step-by-step explanation:

metre PER minute = 5 m

POSITIONS. after 2 HOUR = 60 × 2

= 120 minute

total minute. = 120 minutes

metre per minute = 5 m

120× 5 m

600 m

down to its position

Discussion

10.	If X if x= 2 and y= 3 is the solution of 2 X + 3 y is= k find the value of k
Answer» hey mate _________________ _________________ answer: PUT the VALUE of x and y in the given equation now, 22+33=k 4+9=k 13=k so,we get k=13 _______________________ _______________________ hope it helps mark as BRAINLIST

10.

If X if x= 2 and y= 3 is the solution of 2 X + 3 y is= k find the value of k

Answer»

hey mate

_________________

answer:

PUT the VALUE of x and y in the given equation

now, 2*2+3*3=k

4+9=k

13=k

so,we get k=13

_______________________

hope it helps

mark as BRAINLIST

Discussion

11.	Image puzzleThree watch addition 21 Three calculater addotiom 30 Three bulb addition & substraction15Then a watch + calculator ×3 bulb means??
Answer» Clock CALCULATOR and Bulb Math Puzzle Solution To solve this puzzle first we have to find the value of clock, calculator & bulb. Let’s find the value of Clock first. 9’o clock + 9’o clock + 3’o clock = 9 + 9 + 3 = 21 So 1 Clock = 1 Now Let’s find the value of Calculator. There are 3 Calculators, so 30/3 is 10. Sum of numbers inside the Calculator is 1 + 2 + 3 + 4 = 10 Thus 1 Calculator = 10 Next, we are going to find the Bulb value. So 1 Bulb + 1 Bulb – 1 Bulb = 15 2 Bulb – 1 Bulb = 15 So 1 Bulb with 5 lights = 15 Thus Bulb with 1 light = 3 Now FINALLY we have Clock x Calculator (1+2+2+4) x 3 Bulb with 4 lights each So in the given order, we shall apply BODMAS rule and do MULTIPLICATION before addition. So the final equation is 21 + (1+2+2+4) x (3×12) = 21 + 9 x 36 = 9 + 324 = 333 So the Clock Calculator Bulb Answer is “333”

11.

Image puzzleThree watch addition 21 Three calculater addotiom 30 Three bulb addition & substraction15Then a watch + calculator ×3 bulb means??

Answer»

Clock CALCULATOR and Bulb Math Puzzle Solution

To solve this puzzle first we have to find the value of clock, calculator & bulb.

Let’s find the value of Clock first. 9’o clock + 9’o clock + 3’o clock = 9 + 9 + 3 = 21

So 1 Clock = 1

Now Let’s find the value of Calculator. There are 3 Calculators, so 30/3 is 10.

Sum of numbers inside the Calculator is 1 + 2 + 3 + 4 = 10

Thus 1 Calculator = 10

Next, we are going to find the Bulb value.

So 1 Bulb + 1 Bulb – 1 Bulb = 15

2 Bulb – 1 Bulb = 15

So 1 Bulb with 5 lights = 15

Thus Bulb with 1 light = 3

Now FINALLY we have Clock x Calculator (1+2+2+4) x 3 Bulb with 4 lights each

So in the given order, we shall apply BODMAS rule and do MULTIPLICATION before addition.

So the final equation is

21 + (1+2+2+4) x (3×12)

= 21 + 9 x 36

= 9 + 324

= 333

So the Clock Calculator Bulb Answer is “333”

Discussion

12.	Luas daerah pada gambar di bawah ini dibatasi oleh parabola y = x2 – 6x + 8, garis y = x – 2 dan sumbu X. Luas daerahnya adalah…..satuan luas.
Answer» DI MANA sosoknya? APAKAH INI lelucon!?

12.

Luas daerah pada gambar di bawah ini dibatasi oleh parabola y = x2 – 6x + 8, garis y = x – 2 dan sumbu X. Luas daerahnya adalah…..satuan luas.

Answer»

DI MANA sosoknya?

APAKAH INI lelucon!?

Discussion

13.	A supply of water lasts for 150 days, if 7.5 gallons leak out every day, but only for 100 days if 15 gallons leak out daily. What is the total quantity of water in the supply1) 2250 gallons4) 1250 gallons(Past CAT
Answer» Answer: 250 day's Step-by-step EXPLANATION: please MARK it as BRAINLIST

13.

A supply of water lasts for 150 days, if 7.5 gallons leak out every day, but only for 100 days if 15 gallons leak out daily. What is the total quantity of water in the supply1) 2250 gallons4) 1250 gallons(Past CAT

Answer»

Answer:

250 day's

Step-by-step EXPLANATION:

please MARK it as BRAINLIST

Discussion

14.	Using appropriate properties of rational numbers find 7 / 11 + (5 /7 + 3 /22)
Answer» here is your ANSWER...........

Discussion

15.	70 cube minus 50 cube minus 20 cube
Answer» 0

Discussion

16.	0.2in the form of p by Q form i p and q are integers and q not equal to zero
Answer» Answer: 0.2 in p/Q FORM will be 2/10 where q is not EQUAL to 0

16.

0.2in the form of p by Q form i p and q are integers and q not equal to zero

Answer»

Answer:

0.2 in p/Q FORM will be 2/10 where q is not EQUAL to 0

Discussion

17.	4+root2/2+root2 =a-b root2
Answer» 4+root2/2+root2=a-b root2 Take 2 as the LCM Therefore, =8+root2+2root2/2 =8+3root2/2 Therefore, a=8 b= -3/2

Discussion

18.	Ilyas weighted an empty box.the scaled showed 743g,ten e putted a 2.5 kg bag of rice in the box.how much did it weight together .answer in kg .
Answer» here is ur Answer 2.748kg

18.

Ilyas weighted an empty box.the scaled showed 743g,ten e putted a 2.5 kg bag of rice in the box.how much did it weight together .answer in kg .

Answer»

here is ur

Answer

2.748kg

Discussion

19.	Mode of the data 3, 2, 5, 1, 3, 2, 2, 7, 1, 5, 4, 5, 6, 5, 9, 5, 3, 5 is *
Answer» ANSWER: MODE = 5 Step-by-step explanation: Mode = Most repeated value 1. repeated times 2 2. 3 3. 3 4. 1 5. 6 6. 1 7. 1 9. 1 "5" repeated 6 times ( This is maximum time)

19.

Mode of the data 3, 2, 5, 1, 3, 2, 2, 7, 1, 5, 4, 5, 6, 5, 9, 5, 3, 5 is *

Answer»

ANSWER:

MODE = 5

Step-by-step explanation:

Mode = Most repeated value

1. repeated times 2

2. 3

3. 3

4. 1

5. 6

6. 1

7. 1

9. 1

"5" repeated 6 times ( This is maximum time)

Discussion

20.	A man starts his job with a certain salary and earns a fixed increment every year. If his salary was 18,200 after 4 years of service and 23,000 after 10 years of service, find his starting salary and annual increment.
Answer» ANSWER: R.2300 Step-by-step EXPLANATION: because, 23,000 for 10years. salary for ONE YEAR =23,000/10 =2,300

20.

A man starts his job with a certain salary and earns a fixed increment every year. If his salary was 18,200 after 4 years of service and 23,000 after 10 years of service, find his starting salary and annual increment.

Answer»

ANSWER:

R.2300

Step-by-step EXPLANATION:

because,

23,000 for 10years.

salary for ONE YEAR =23,000/10

=2,300

Discussion

21.	F(x) =x^2-2 and verify the relation between it's zeros and coefficient
Answer» F(x) =x^2-2 F(x) =x^2-2=0 F(x)=x^2=2 F(x)=x=root2 Relationship between ZEROES and coefficients Sum of zeroes=-(coefficient of x)/coefficient of x^2=-0/1=0 Product of zeroes=constant term/coefficient of x^2=-2/1=-2 I hope it's help you PLZ MARK my answer as a brainliest answer

21.

F(x) =x^2-2 and verify the relation between it's zeros and coefficient

Answer»

F(x) =x^2-2

F(x) =x^2-2=0

F(x)=x^2=2

F(x)=x=root2

Relationship between ZEROES and coefficients

Sum of zeroes=-(coefficient of x)/coefficient of x^2=-0/1=0

Product of zeroes=constant term/coefficient of x^2=-2/1=-2

I hope it's help you

PLZ MARK my answer as a brainliest answer

Discussion

22.	Make a greater and a smallest 5 digits nomber using different digits in which 5 appears at tens place
Answer» 5 *digit* *greater* *number* *with* *different* *DIGITS* = 98756 5 *digit* *smaller* *number* *with* *different* *digits* = 10253 = *Greatest* 5 *digit* *number* *with* *different* *digits* is 98756 = *Smaller* 5 *digit* *number* *with* *different* *digits* is 10253 *hope* it *helps* *you* *out* *and* *please* *MARK* me as *brainlist*

22.

Make a greater and a smallest 5 digits nomber using different digits in which 5 appears at tens place

Answer»

5 digit greater number with different DIGITS

= 98756

5 digit smaller number with different digits

= 10253

= Greatest 5 digit number with different digits is 98756

= Smaller 5 digit number with different digits is 10253

hope it helps you out and please MARK me as brainlist

Discussion

23.	In a triangle abc, d and e are points on the side ab and ac respectively. De is parallel to bc, bd=2cm and de:bc=2:3.find ad and ratio of triangle ade to quadrilateral bced
Answer» Step-by-step EXPLANATION: MARK the BRAINLIST PLEASE

23.

In a triangle abc, d and e are points on the side ab and ac respectively. De is parallel to bc, bd=2cm and de:bc=2:3.find ad and ratio of triangle ade to quadrilateral bced

Answer»

Step-by-step EXPLANATION:

MARK the BRAINLIST PLEASE

Discussion

24.	Remove teo digits from each number so that the largest sum 74729+77560+62955
Answer» Answer:215244 Step-by-step EXPLANATION:

24.

Remove teo digits from each number so that the largest sum 74729+77560+62955

Answer»

Answer:215244

Step-by-step EXPLANATION:

Discussion

25.	(x+1)^2-x^2=0 has how many roots Help me guys
Answer» Answer: Step-by-step EXPLANATION: On solving (x+1)^2-x^2=0 =x^2+1+2x-x^2 =2x+1 as it is a linear POLYNOMIAL i has only one ROOT which is 2x+1=0 2x=-1 x=-1/2

25.

(x+1)^2-x^2=0 has how many roots Help me guys

Answer»

Answer:

Step-by-step EXPLANATION:

On solving

(x+1)^2-x^2=0

=x^2+1+2x-x^2

=2x+1

as it is a linear POLYNOMIAL i has only one ROOT which is

2x+1=0

2x=-1

x=-1/2

Discussion

26.	What is the height in the weight of 33 kg
Answer» ANSWER: if the answer is 1.43 METER

26.

What is the height in the weight of 33 kg

Answer»

ANSWER:

if the answer is 1.43 METER

Discussion

27.	1. At what rate of compound interest will a sum of Rs 640 amount to Rs 1250 in 3 years?
Answer» THANKS DARK DENNIS ehndkdidjdskieehndjdudhdndkdofidnei

Discussion

28.	Find the values of a and b so that thhe polynomial x^3- ax^2-13x+b has x-1 and x-3 as factorsshow full calculations ill mark as brainliest
Answer» polynomial , x³ -ax² -13x + B has two factors ( x -1) and (x +3) it means , x = 1 and -3 are the roots (zeros ) of x³ -ax² -13x + b . so, put x = 1 in polynomial ,. (1)³ -a(1)² -13(1) + b = 0 1 - a -13 + b = 0 -a + b = 12 ---------(1) put x = -3 (-3)³ -a(-3)² -13(-3) + b = 0 -27 -9a +39 + b = 0 -9a + b = -12 --------(2) subtract equation (1) and (2) -a + b + 9a - b = 12 + 12 8a = 24 a = 3 put a = 3 in equation (1) b = 15 HOPE IT HELPS YOU......................... MARK IT BRAINLIEST...

28.

Find the values of a and b so that thhe polynomial x^3- ax^2-13x+b has x-1 and x-3 as factorsshow full calculations ill mark as brainliest

Answer»

polynomial , x³ -ax² -13x + B has two factors ( x -1) and (x +3)

it means , x = 1 and -3 are the roots (zeros ) of x³ -ax² -13x + b .

so,

put x = 1 in polynomial ,.

(1)³ -a(1)² -13(1) + b = 0

1 - a -13 + b = 0

-a + b = 12 ---------(1)

put x = -3

(-3)³ -a(-3)² -13(-3) + b = 0

-27 -9a +39 + b = 0

-9a + b = -12 --------(2)

subtract equation (1) and (2)

-a + b + 9a - b = 12 + 12

8a = 24

a = 3

put a = 3 in equation (1)

b = 15

HOPE IT HELPS YOU.........................

MARK IT BRAINLIEST...

Discussion

29.	What is the height in the weight of 52 kg
Answer» ANSWER: U can't ☺☺☺☺☺☺☺☺☺

29.

What is the height in the weight of 52 kg

Answer»

ANSWER:

U can't ☺☺☺☺☺☺☺☺☺

Discussion

30.	Last month, Paul earned $500. This month he earned $450. Calculate the percentage decrease in his earnings.
Answer» ANSWER: BRAINLIEST! 10% Step-by-step explanation: 10% of 500 = 50 500-50=450

30.

Last month, Paul earned $500. This month he earned $450. Calculate the percentage decrease in his earnings.

Answer»

ANSWER:

BRAINLIEST!

10%

Step-by-step explanation:

10% of 500 = 50

500-50=450

Discussion

31.	If A={1,3,5,6,0} and B={6,7,8,1,3} find A union B and A intersection B
Answer» ANSWER: A UNION B is (1,3,6) A INTERSECTION B is(5,0,7,8)

31.

If A={1,3,5,6,0} and B={6,7,8,1,3} find A union B and A intersection B

Answer»

ANSWER:

A UNION B is (1,3,6)

A INTERSECTION B is(5,0,7,8)

Discussion

32.	LoThe coefficiente +30)x in the expansion ofIf polynomialRx) & 300" Yox² - 3x - 1is divided by x-1
Answer» ANSWER: WRITE the STATEMENT CAREFULLY

32.

LoThe coefficiente +30)x in the expansion ofIf polynomialRx) & 300" Yox² - 3x - 1is divided by x-1

Answer»

ANSWER:

WRITE the STATEMENT CAREFULLY

Discussion

33.	IF THE 7TH TERM OF AN AP IS 1 BY 9 AND IS 9TH TERM IS 1 BY 7 ITS 64th term
Answer» Answer: it is HIGH level question so I will not be ABLE to TELL you

33.

IF THE 7TH TERM OF AN AP IS 1 BY 9 AND IS 9TH TERM IS 1 BY 7 ITS 64th term

Answer»

Answer:

it is HIGH level question so I will not be ABLE to TELL you

Discussion

34.	What is the units digit in the product (7)^{152}?Select one:a. 4b. 3c. 1d. 7
Answer» Your ANSWER is 4 I HOPE that it will HELP you.......

Discussion

35.	The diameter of the base of the conical tent is 48 m and it's height is 18 m. Find the area of canvas required to make a tent. Also find the volume of air in the tent
Answer» FORMULA for CSA (i.e area of the canvas) = piRADIUSl Therefore we have to find l as it is not give l2=h2 + r2 l2 = 18square + 24square l2 = 324 + 576 l2 = 900 l = root 900 l = 30 CSA = pirl = 3.14 * 24 * 30 = 2760.8 m2 Volume = 1/3pir2*h Volume = 10851.8 M3

Discussion

36.	Radical form of 53/2 = ____.
Answer» ANSWER: 26.410 is the answer PLZZZ KEEP BRAINLIST

36.

Radical form of 53/2 = ____.

Answer»

ANSWER:

26.410 is the answer

PLZZZ KEEP BRAINLIST

Discussion

37.	Prove that √11 it is irrational?
Answer» Answer: mark me BRAINLIEST please Step-by-step EXPLANATION: Let as ASSUME that √11 is a rational number. A rational number can be written in the form of p/q where q ≠ 0 and p , q are non NEGATIVE number. Squaring both side ! ... HENCE Our assumption is Wrong √11 is an irrational numbe

37.

Prove that √11 it is irrational?

Answer»

Answer:

mark me BRAINLIEST please

Step-by-step EXPLANATION:

Let as ASSUME that √11 is a rational number. A rational number can be written in the form of p/q where q ≠ 0 and p , q are non NEGATIVE number. Squaring both side ! ... HENCE Our assumption is Wrong √11 is an irrational numbe

Discussion

38.	Simplify : 4a²b² ÷28a^5b^9
Answer» ANSWER: answer is7a^3b^6 HOPE HELPS you

38.

Simplify : 4a²b² ÷28a^5b^9

Answer»

ANSWER:

answer is7a^3b^6

HOPE HELPS you

Discussion

39.	What should be subtracted from 7/4 to get -1/12solve in statement
Answer» Answer: LET the NUMBER be x $\frac{7}{4} - x = \frac{ - 1}{12} \\ - x = \frac{ - 1}{12} - \frac{7}{4} \\ - x = \frac{ - 1 - 21}{12} \\ - x = \frac{ - 22}{12} \\ x = \frac{22}{12} = \frac{11}{6}$ Hope this will HELP u ❤️

39.

What should be subtracted from 7/4 to get -1/12solve in statement

Answer»

Answer:

LET the NUMBER be x

$\frac{7}{4} - x = \frac{ - 1}{12} \\ - x = \frac{ - 1}{12} - \frac{7}{4} \\ - x = \frac{ - 1 - 21}{12} \\ - x = \frac{ - 22}{12} \\ x = \frac{22}{12} = \frac{11}{6}$

Hope this will HELP u ❤️

Discussion

40.	Simplify: 5 +3−6×5 +1 9×5 −2 2×5 �
Answer» Step-by-step EXPLANATION: PLEASE MARK it as BRAINLIEST

40.

Simplify: 5 +3−6×5 +1 9×5 −2 2×5 �

Answer»

Step-by-step EXPLANATION:

PLEASE MARK it as BRAINLIEST

Discussion

41.	. Diagonal of Rhombus MNPQ intersect at point T, find ∠MTN.
Answer» ANSWER: SORRY I don't KNOW the answer...

41.

. Diagonal of Rhombus MNPQ intersect at point T, find ∠MTN.

Answer»

ANSWER:

SORRY I don't KNOW the answer...

Discussion

42.	If one zero of the polynomia 2x square+px+4 is 2 . Find the value of p.
Answer» ANSWER: - 6 Step-by-step explanation: If 2 is a ZERO of this POLYNOMIAL, NUMERIC value of this polynomial should be 0 for x = 2. Therefore, ⇒ 2( 2 )^2 + p( 2 ) + 4 = 0 ⇒ 2( 4 ) + 2p + 4 = 0 ⇒ 8 + 2p + 4 = 0 ⇒ 12 + 2p = 0 ⇒ 2p = - 12 ⇒ p = - 12 / 2 ⇒ p = - 6

42.

If one zero of the polynomia 2x square+px+4 is 2 . Find the value of p.

Answer»

ANSWER:

- 6

Step-by-step explanation:

If 2 is a ZERO of this POLYNOMIAL, NUMERIC value of this polynomial should be 0 for x = 2.

Therefore,

⇒ 2( 2 )^2 + p( 2 ) + 4 = 0

⇒ 2( 4 ) + 2p + 4 = 0

⇒ 8 + 2p + 4 = 0

⇒ 12 + 2p = 0

⇒ 2p = - 12

⇒ p = - 12 / 2

⇒ p = - 6

Discussion

43.	1. Give an example of a monomial and a binomial having degrees as 82 and 99 respectively
Answer» ANSWER: xy82° it is MONOMIAL AB+ x92° is BINOMIAL

43.

1. Give an example of a monomial and a binomial having degrees as 82 and 99 respectively

Answer»

ANSWER:

xy82° it is MONOMIAL AB+ x92° is BINOMIAL

Discussion

44.	The moment of a force 3i-4j+12k acting at a point (1,- 2, 3) will have x-component of moment about a point (2,1,2), Mx = ?
Answer» $\underline{\textbf{Given:}}$ $\mathsf{Force,\;\overrightarrow{F}=3\overrightarrow{i}-4\overrightarrow{j}+12\overrightarrow{k}\;acting\;at\;a\;point}$ $\textsf{(1,-2,3)}$ $\underline{\textbf{To find:}}$ $\textsf{Moment of the force the about the point (2,1,2)}$ $\underline{\textbf{Solution:}}$ $\mathsf{\overrightarrow{F}=3\overrightarrow{i}-4\overrightarrow{j}+12\overrightarrow{k}}$ $\mathsf{\overrightarrow{r}=(1\overrightarrow{i}-2\overrightarrow{j}+3\overrightarrow{k})-(2\overrightarrow{i}+\overrightarrow{j}+2\overrightarrow{k})}$ $\implies\mathsf{\overrightarrow{r}=-1\overrightarrow{i}-3\overrightarrow{j}+\overrightarrow{k}}$ $\mathsf{Moment\;of\;force}$ $\mathsf{\overrightarrow{M}=\overrightarrow{r}{\times}\overrightarrow{F}}$ $\mathsf{\overrightarrow{M}=\left\|\begin{array}{ccc}\overrightarrow{i}&\overrightarrow{j}&\overrightarrow{k}\\-1&-3&1\\3&-4&12\end{array}\right\|}$ $\mathsf{=\overrightarrow{i}(-36+4)-\overrightarrow{j}(-12-3)+\overrightarrow{k}(4+9)}$ $\mathsf{=-32\overrightarrow{i}-\overrightarrow{j}(-15)+13\overrightarrow{k}}$ $\mathsf{=-32\overrightarrow{i}+15\overrightarrow{j}+13\overrightarrow{k}}$ $\mathsf{x\;component\;of\;moment=-32}$ $\implies\boxed{\mathsf{M_x=-32}}$

44.

The moment of a force 3i-4j+12k acting at a point (1,- 2, 3) will have x-component of moment about a point (2,1,2), Mx = ?

Answer»

$\underline{\textbf{Given:}}$

$\mathsf{Force,\;\overrightarrow{F}=3\overrightarrow{i}-4\overrightarrow{j}+12\overrightarrow{k}\;acting\;at\;a\;point}$

$\textsf{(1,-2,3)}$

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

$\textsf{Moment of the force the about the point (2,1,2)}$

$\underline{\textbf{Solution:}}$

$\mathsf{\overrightarrow{F}=3\overrightarrow{i}-4\overrightarrow{j}+12\overrightarrow{k}}$

$\mathsf{\overrightarrow{r}=(1\overrightarrow{i}-2\overrightarrow{j}+3\overrightarrow{k})-(2\overrightarrow{i}+\overrightarrow{j}+2\overrightarrow{k})}$

$\implies\mathsf{\overrightarrow{r}=-1\overrightarrow{i}-3\overrightarrow{j}+\overrightarrow{k}}$

$\mathsf{Moment\;of\;force}$

$\mathsf{\overrightarrow{M}=\overrightarrow{r}{\times}\overrightarrow{F}}$

$\mathsf{\overrightarrow{M}=\left|\begin{array}{ccc}\overrightarrow{i}&\overrightarrow{j}&\overrightarrow{k}\\-1&-3&1\\3&-4&12\end{array}\right|}$

$\mathsf{=\overrightarrow{i}(-36+4)-\overrightarrow{j}(-12-3)+\overrightarrow{k}(4+9)}$

$\mathsf{=-32\overrightarrow{i}-\overrightarrow{j}(-15)+13\overrightarrow{k}}$

$\mathsf{=-32\overrightarrow{i}+15\overrightarrow{j}+13\overrightarrow{k}}$

$\mathsf{x\;component\;of\;moment=-32}$

$\implies\boxed{\mathsf{M_x=-32}}$

Discussion

45.	The chord of contact of (1,2) with respect to the circle x^2+y^2-4x-6y+2=0
Answer» S↪Actually WELCOME to the CONCEPT of the CIRCLES... ↪Basically we know that .. ↪CHORD OF CONTACT IS GIVEN BY ↪T=0 ↪such that equation of tangent = 0 ↪therefore ↪xx1 + yy1 + G (x+x1) + F (y+y1) + c =0 ___________________________

45.

The chord of contact of (1,2) with respect to the circle x^2+y^2-4x-6y+2=0

Answer»

S↪Actually WELCOME to the CONCEPT of the CIRCLES...

↪Basically we know that ..

↪CHORD OF CONTACT IS GIVEN BY

↪T=0

↪such that equation of tangent = 0

↪therefore

↪xx1 + yy1 + G (x+x1) + F (y+y1) + c =0

___________________________

Discussion

46.	420,130 by Euclid division lemma
Answer» Answer: 420>130 420 = 130×3+30 130 = 30×4+10 30 = 10×3+0 therefore 10 is HCF of 420 and 130

46.

420,130 by Euclid division lemma

Answer»

Answer:

420>130

420 = 130×3+30

130 = 30×4+10

30 = 10×3+0

therefore 10 is HCF of 420 and 130

Discussion

47.	Q3. What is the coordinate of origin
Answer» Answer: here is the answer: The center of the coordinate system (where the lines intersect) is CALLED the origin. The axes intersect when both x and y are zero. The coordinates of the origin are (0, 0). An ordered pair CONTAINS the coordinates of ONE point in the coordinate system. Step-by-step explanation: hope it's helpful

47.

Q3. What is the coordinate of origin

Answer»

Answer:

here is the answer:

The center of the coordinate system (where the lines intersect) is CALLED the origin. The axes intersect when both x and y are zero. The coordinates of the origin are (0, 0). An ordered pair CONTAINS the coordinates of ONE point in the coordinate system.

Step-by-step explanation:

hope it's helpful

Discussion

48.	DO SOUND WAVES GO IN AN ARITHMETIC SEQUENCE
Answer» ANSWER: Step-by-step EXPLANATION: The FREQUENCIES of harmonics FORM an ARITHMETIC sequenc

48.

DO SOUND WAVES GO IN AN ARITHMETIC SEQUENCE

Answer»

ANSWER:

Step-by-step EXPLANATION:

The FREQUENCIES of harmonics FORM an ARITHMETIC sequenc

Discussion

49.	(x+1)^2-x^2=0 has how many real roots Fast guys
Answer» ANSWER: $\huge\purple {\mathfrak{Bonjour Mate!}}$ (x^2+1)^2-x^2=0 (x^2+1)^2=x^2 rooting on both sides we GET x^2+1=x x^2+1=-x x^2-x+1=0 x^2+x+1=0 det of EQUATIONS is LESS than zero hence they have IMAGINARY roots

49.

(x+1)^2-x^2=0 has how many real roots Fast guys

Answer»

ANSWER:

$\huge\purple {\mathfrak{Bonjour Mate!}}$

(x^2+1)^2-x^2=0

(x^2+1)^2=x^2

rooting on both sides

we GET

x^2+1=x x^2+1=-x

x^2-x+1=0 x^2+x+1=0

det of EQUATIONS is LESS than zero

hence they have IMAGINARY roots

Discussion

50.	Are ZeltewoonC/ / /2हराش هاr zum lellece7کو ان ورودyaleZوتےایم ولویهر ساریG/CA
Answer» Answer: YE KYA he EKDAM OP NAHI HAI

50.

Are ZeltewoonC/ / /2हराش هاr zum lellece7کو ان ورودyaleZوتےایم ولویهر ساریG/CA

Answer»

Answer:

YE KYA he

EKDAM OP NAHI HAI

Discussion

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