332354 + Interview Questions in Secondary School in Math

1.	Is investing in share profitable or a risk
Answer» Share MEANS which TYPES.. MAY be it is profitable But some time MAKES you dangers situations..

Discussion

2.	Prove that every bounded monotonic sequence is convergent
Answer» If for all natural numbers j and k, aj,k is a non-negative real number and aj,k ≤ aj+1,k, then[2]:168 lim j → ∞ ∑ k a j , k = ∑ k lim j → ∞ a j , k . {\displaystyle \lim _{j\to \infty }\sum _{k}a_{j,k}=\sum _{k}\lim _{j\to \infty }a_{j,k}.} The theorem states that if you have an infinite matrix of non-negative real numbers such that the COLUMNS are weakly increasing and bounded, and for each row, the series whose terms are given by this row has a convergent sum, then the limit of the sums of the rows is equal to the sum of the series whose term k is given by the limit of column k (which is also its SUPREMUM). The series has a convergent sum if and only if the (weakly increasing) sequence of row sums is bounded and THEREFORE convergent. As an example, consider the infinite series of rows ( 1 + 1 N ) n = ∑ k = 0 n ( n k ) / n k = ∑ k = 0 n 1 k ! × n n × n − 1 n × ⋯ × n − k + 1 n , {\displaystyle \left(1+{\frac {1}{n}}\right)^{n}=\sum _{k=0}^{n}{\binom {n}{k}}/n^{k}=\sum _{k=0}^{n}{\frac {1}{k!}}\times {\frac {n}{n}}\times {\frac {n-1}{n}}\times \cdots \times {\frac {n-k+1}{n}},} where n approaches infinity (the limit of this series is e). Here the matrix entry in row n and column k is ( n k ) / n k = 1 k ! × n n × n − 1 n × ⋯ × n − k + 1 n ; {\displaystyle {\binom {n}{k}}/n^{k}={\frac {1}{k!}}\times {\frac {n}{n}}\times {\frac {n-1}{n}}\times \cdots \times {\frac {n-k+1}{n}};} the columns (fixed k) are indeed weakly increasing with n and bounded (by 1/k!), while the rows only have finitely many nonzero terms, so condition 2 is satisfied; the theorem now says that you can compute the limit of the row sums ( 1 + 1 / n ) n {\displaystyle (1+1/n)^{n}} by taking the sum of the column limits, namely 1 k ! {\displaystyle {\frac {1}{k!}}} .

2.

Prove that every bounded monotonic sequence is convergent

Answer»

If for all natural numbers j and k, aj,k is a non-negative real number and aj,k ≤ aj+1,k, then[2]:168

lim j → ∞ ∑ k a j , k = ∑ k lim j → ∞ a j , k . {\displaystyle \lim _{j\to \infty }\sum _{k}a_{j,k}=\sum _{k}\lim _{j\to \infty }a_{j,k}.}

The theorem states that if you have an infinite matrix of non-negative real numbers such that

the COLUMNS are weakly increasing and bounded, and

for each row, the series whose terms are given by this row has a convergent sum,

then the limit of the sums of the rows is equal to the sum of the series whose term k is given by the limit of column k (which is also its SUPREMUM). The series has a convergent sum if and only if the (weakly increasing) sequence of row sums is bounded and THEREFORE convergent.

As an example, consider the infinite series of rows

( 1 + 1 N ) n = ∑ k = 0 n ( n k ) / n k = ∑ k = 0 n 1 k ! × n n × n − 1 n × ⋯ × n − k + 1 n , {\displaystyle \left(1+{\frac {1}{n}}\right)^{n}=\sum _{k=0}^{n}{\binom {n}{k}}/n^{k}=\sum _{k=0}^{n}{\frac {1}{k!}}\times {\frac {n}{n}}\times {\frac {n-1}{n}}\times \cdots \times {\frac {n-k+1}{n}},}

where n approaches infinity (the limit of this series is e). Here the matrix entry in row n and column k is

( n k ) / n k = 1 k ! × n n × n − 1 n × ⋯ × n − k + 1 n ; {\displaystyle {\binom {n}{k}}/n^{k}={\frac {1}{k!}}\times {\frac {n}{n}}\times {\frac {n-1}{n}}\times \cdots \times {\frac {n-k+1}{n}};}

the columns (fixed k) are indeed weakly increasing with n and bounded (by 1/k!), while the rows only have finitely many nonzero terms, so condition 2 is satisfied; the theorem now says that you can compute the limit of the row sums

( 1 + 1 / n ) n {\displaystyle (1+1/n)^{n}}

by taking the sum of the column limits, namely

1 k ! {\displaystyle {\frac {1}{k!}}}

.

Discussion

3.	Prove that product of 3 positive consecutive integers is divisible by 6 0
Answer» Obtain all the ZEROS of the polynomial 2x4+x3-14x2-19x-6 if TWO of it ZEROES are -2 and 1

Discussion

4.	Find the smallest number by which 1152 must be divided so that it becomes a perfect square.Also,find the number whose square is the resulting number
Answer» 1152= 2×2×2×2×2×2×2×3×3 Therefore 2 should be DIVIDED to 1152 to GET 576 as perfect square HOPE YOU LIKE IT PLZ GV BRAINLIEST

Discussion

5.	What is chord in circle
Answer» It is a STRAIGHT LINE SEGMENT which both ENDS on the CIRCLE

Discussion

6.	5^5/9 % = ?please solve it.
Answer» HIII friend____✌️✌️✌️✌️ good evening___ here's your answer 5^(5/9) % = 2.4452 * 100 = 244.52

Discussion

7.	Ramu can do a work in 10 days and shamu can do that work in 15 days
Answer» They TAKE 6 DAYS to COMPLETE the WORK

Discussion

8.	What is the summation of infinity?????
Answer» DIVERGES to INFINITY. Or, to put it more loosely, that the SUM is equal to infinity. converges to a FINITE VALUE as long as the power is a number greater than . For every , the expression has a well-defined, finite value.

Discussion

9.	Pls answer it fast............i will mark it as brainliestIf 49x²-b²=(7x+1/2)(7x-1/2) find the value of b
Answer» HIII friend_____✌️✌️✌️✌️ 49x^2 - B^2 = 49x^2 - 1/4 use this PROPERTY _____ (a+b)(a-b) = a^2 - b^2 then b^2 = 1/4 b = 1/2 & b = -1/2

Discussion

10.	How to calculate smallest 5 digit no. which is exactly divisible by 7,12,15,16
Answer» SMALLEST number MEANS U NEED to take out LCM

Discussion

11.	A new computer costs rupees 60000.The depreciation is 40% every year.Find the price of the computer after two years
Answer» Depreciation VALUE for 1ST year = 60000 - 40% of 60000 = 60000 - 24000 = 36000 depreciation value for 2nd year = 36000 - 40% of 36000 = 36000 - 14400 = 21600 computer price will be 21600 after 2 YEARS

11.

A new computer costs rupees 60000.The depreciation is 40% every year.Find the price of the computer after two years

Answer»

Depreciation VALUE for 1ST year = 60000 - 40% of 60000 = 60000 - 24000

= 36000

depreciation value for 2nd year = 36000 - 40% of 36000 = 36000 - 14400

= 21600

computer price will be 21600 after 2 YEARS

Discussion

12.	Paul and peter can do a piece of work in 60 days, while paul can do it alone in 80 days. how many days will peter take to complete the work alone?
Answer» Paul and peter TOGETHER can do it in 60 DAYS, 1 day work = 1/60 Paul can do it in 80 days, 1 day work = 1/80 1 day work of peter = 1/60 - 1/80 = (4-3) / 240 = 1 / 240 Peter will take 240 days

12.

Paul and peter can do a piece of work in 60 days, while paul can do it alone in 80 days. how many days will peter take to complete the work alone?

Answer»

Paul and peter TOGETHER can do it in 60 DAYS, 1 day work = 1/60

Paul can do it in 80 days, 1 day work = 1/80

1 day work of peter = 1/60 - 1/80 = (4-3) / 240 = 1 / 240

Peter will take 240 days

Discussion

13.	A player tosses 3 fair coins. he wins rs 5 if three heads appear
Answer» Sample space S={HHH, HHT , HTH , THH , TTT , TTH , THT, HTT} HENCE N(S)=8 if A: THREE HEADS APPEAR . hence A= {HHH} hence n(A)= 1 hence P(A)= n(A)÷n(S)=1/8

Discussion

14.	Prove that 2^n can be expressed as sum of two consecutive numbers
Answer» Integers starting with n is kn+k(k−1)2 so if mcan be written in this form, then 2m=k(2n+k−1). If m is a power of 2, then both k and 2n+k−1 MUST be powers of two, but they have DIFFERENT PARITIES, so ONE of them must be 1. Presumably, k>1, so 2n+k−1=1 or 2n+k=2. Since k≥2, this MEANS that n≤0.

Discussion

15.	Prove that sinx^6 + cosx^6 + 3cosx^2+ sinx^2/( 1+ tan²x)(1-sin²x) = 1
Answer» ARYAN. PVT......LTD.......

Discussion

16.	Evaluate :sin(nπ+(−1)nπ4) where n is an integer,
Answer» If n=1 then sin(PI/2)=1 If n=2 then sin(pi)=0 If n=3 then sin(3pi/2) = sin(pi+pi/2)= -sin(pi/2)= -1 If n=4 then sin(2pi)=0 If n=5 then sin(5pi/2)= sin(2pi+pi/2)= sin(pi/2)= 1. Hence sin n*(pi/2) = 1 if n=1,5,9,13... = -1 if n=3,7,11,15... = 0 if n is EVEN

Discussion

17.	21 or 25 question please solve it
Answer» No more SPACE for reasoning...Hope you get the solution and trig. identitties...I also hope for good solution better than MINE..i just tried...N i FOUND solution in this WAY. .

Discussion

18.	If a,b,c are i A.P and G.P prove a=b=c
Answer» Hey i have PDF but here is no option for pdf can i SEND SOMEWHERE ELSE

Discussion

19.	63.63 = m{21+(n/100)}
Answer» 1 m(21 + n/100) = 63.63 2100 m + mn = 6363 = 6300 + 63 m = 3 and n = 21 2 1, 5, 7, 4, 8 11, 15, 17, 14, 18 3 If N is prime then it has 2 divisors. (Prime number is having 2 divisors) N + 1 is having 3 divisors means it is a square number (Square number is having odd number of divisors) N = 3 divisors 1, 3 N + 1 = 4 divisors 1, 2, 4 N + 2 = 5 is prime having 2 divisors. 4 Biggest 10 digit palindrome is 9999999999 smallest 8 digit palindrome number is 11111111 find difference. 5 P/9 + q/10 = r p/9 + p/10 = r 19p = 90r p = 90 and r = 19 Maximum value of r = 95 when p = 450 6 p, q , (p – q), (p + q) are prime sum = 3p + q p and q are odd so 3p is odd 3p + q is even divisible by 2 7 a(b + c) = 32 b(c + a) = 65 c(a + b) = 32 ab + ac + bc + ab + ac + bc = 174 ab + bc + ac = 85 bc = 87 – 32 = 55 b = 11 or 5 and c = 5 or 11 ac = 85 – 65 = 20 = 5 × 4 so a = 5 or 4 and c = 4 or 5 from above conclusion a = 4, b = 11 and c = 5 abc = 220 8 Let full volume = x 0.6x = 80 + 0.2x 0.4x = 80 x = 20 10 sum of all 5 angles = 540 sum of remaining 3 angles = 540 – 180 = 360 each angle = 120°

Discussion

20.	In the given figure , AB\|\|CD.prove that p+q-r=180 Plz solve it so important p,lz .......
Answer» This is your ANSWER........

Discussion

21.	Is calculator permitted for icse 2017 math exam?
Answer» No. It is not PERMITTED in any SCHOOLS for BOARD EXAMS....

Discussion

22.	Why children wasting time on Internet and any website
Answer» Because childrens are INTRESTED in mobile GAMES and even parents are ALSO playing in mobiles and internet. even now TEACHERS are giving hw and they SEARCH internet.

Discussion

23.	In a pie chart two or more central angles can be equal.
Answer» They can be EQUAL or not

Discussion

24.	One side of a right angle triangle is 2 centimetre then the other and to centimetre less than the hypotenuse how long are the three sides
Answer» LET the one side be x Then other side is x-2 and the hypotenuse is x+2 Then by PYTHAGORAS THEOREM,we have ${(x)}^{2} + {(x - 2)}^{2} = {(x + 2)}^{2}$ ${x}^{2} + {x}^{2} - 4x + 4 = {x}^{2} + 4x + 4$ ${x}^{2} = 8x$ the SIDES are X=8 X-2=6 and X+2 =10 So the sides of the triangle are 6cm,8cm and 10cm.

Discussion

25.	3 of phone numbers have a sum of 22, if average of 4 numbers is 8, what is the 4th number
Answer» SUM of 3 NUMBERS = 22 average of 4 numbers = 8 sum of 4 numbers = 8 x 4 = 32 4th NUMBER is sum of 4 numbers - sum of 3 numbers = 32 - 22 = 10 4th number = 10

25.

3 of phone numbers have a sum of 22, if average of 4 numbers is 8, what is the 4th number

Answer»

SUM of 3 NUMBERS = 22

average of 4 numbers = 8

sum of 4 numbers = 8 x 4 = 32

4th NUMBER is sum of 4 numbers - sum of 3 numbers = 32 - 22 = 10

4th number = 10

Discussion

26.	3/5 of cistern is filled in 1minute how much more time will be required to fill the of it
Answer» LET time required = x 1 min = 60 seconds 3/5 of x = 60 3x/5 = 60 3x = 300 x = 300/3 x = 100 seconds i.e. 1 minute 40 seconds will be required time to fill the cistern

26.

3/5 of cistern is filled in 1minute how much more time will be required to fill the of it

Answer»

LET time required = x

1 min = 60 seconds

3/5 of x = 60

3x/5 = 60

3x = 300

x = 300/3

x = 100 seconds

i.e. 1 minute 40 seconds will be required time to fill the cistern

Discussion

27.	Product of zeros of polynomial (ax²-6x-6) is 6, find the valur of a
Answer» PRODUCT of ZEROES of a quadratic POLYNOMIAL = c/a ATQ, 6=c/a 6=-6/a a=-1 So a turns out to be -1

Discussion

28.	What is the lateral surface area of a cube of side 5cm
Answer» LSA of a SQUARE = 4a^2 = 4×5^2 =4×25 =100 HOPE IT HELPS YOU

Discussion

29.	16x^ - 24x-1=0 solve by complete square
Answer» Here is UR ANS....HOPE it HELPS

Discussion

30.	कोडे सोडवा पाहु कोण लवकर उत्तर देतो 100 रुपयात 100 प्राणी घेऊन दाखवा 3 रुपयाला 1 घोडा 5 रुपयाला 1 हत्ती आणि 1 रुपयाला 2 उंट अट- प्रत्येक प्राणी घ्यावाच लागेल.
Answer» I2i2ii2i2iiwiqiqoqowjwjwijekqkaska

Discussion

31.	What is Square & Square Root of 2 Digit No
Answer» 2,I am not GUARANTEE about this ANSWER

Discussion

32.	if sin/a=cos/b then asin2+bcos2
Answer» HOPE this HELP.......

Discussion

33.	Find four consecutive term ina.p whose sum is 12 qn
Answer» LET the four CONSECUTIVE terms in an A.P. be a – 3d, a – d, a + d, a + 3d As per the first condition, a – 3d + a – d + a + d + a + 3d = 12 ∴ 4a = 12 ∴ a = 12/4 ∴ a = 3 ...........eq. (i) As per the second condition, a + d + a + 3d = 14 ∴ 2a + 4D = 14 ∴ 2 (3) + 4d = 14 [From eq. (i)] ∴ 6 + 4d = 14 ∴ 4d = 14 – 6 ∴ 4d = 8 ∴ d = 8/4 ∴ d = 2 ∴ a – 3d = 3 – 3 (2) = 3 – 6 = – 3 a – d = 3 – 2 = 1 a + d = 3 + 2 = 5 a + 3d = 3 + 3 (2) = 9 ∴ The four consecutive terms of A.P. are – 3, 1, 5 and 9

Discussion

34.	A manufacturer sold an article at 18% gain wholeseller sold it to retailer at 20% gain retailer sold it 25% gain to customer if cutomer paid 30.09 rupees find the cost price to manufacturer
Answer» Given, Manufacturer To Wholesaller Gain % = P1% = 18% WHOLESELLER To Retailer Gain % = P2% = 20% Retailer to Customer Gain % = P3% = 25% Retailer Selling PRICE = RS. 30.09 Retailer to Customer CP = (SP100)/(100+P3%) CP = 3009/125 CP of Retailer = Rs24.072 Wholeseller To Retailer SP of Wholeseller = Rs. 24.072 CP = (SP100)/(100+P2%) CP = 2407.2/120 CP of Wholeseller = Rs. 20.06 Manufacturer To Wholesaller SP of Manufacturer = Rs. 20.06 CP = (SP100)/(100+P1%) CP = 2006/118 CP of Manufacturer = Rs. 17 The Cost Price of the Manufacturer = Rs. 17*

34.

A manufacturer sold an article at 18% gain wholeseller sold it to retailer at 20% gain retailer sold it 25% gain to customer if cutomer paid 30.09 rupees find the cost price to manufacturer

Answer»

Given,

Manufacturer To Wholesaller

Gain % = P1% = 18%

WHOLESELLER To Retailer

Gain % = P2% = 20%

Retailer to Customer

Gain % = P3% = 25%

Retailer Selling PRICE = RS. 30.09

Retailer to Customer

CP = (SP*100)/(100+P3%)

CP = 3009/125

CP of Retailer = Rs24.072

Wholeseller To Retailer

SP of Wholeseller = Rs. 24.072

CP = (SP*100)/(100+P2%)

CP = 2407.2/120

CP of Wholeseller = Rs. 20.06

Manufacturer To Wholesaller

SP of Manufacturer = Rs. 20.06

CP = (SP*100)/(100+P1%)

CP = 2006/118

CP of Manufacturer = Rs. 17

The Cost Price of the Manufacturer = Rs. 17

Discussion

35.	2 numbers ratio 7:9.if 12 subtracted from each of them then ratio 3:5 the small no what
Answer» HEY FRIEND your ANSWER

Discussion

36.	N^3+3n^2+5n+3 is divisible by 3 mathematical induction n(n+1)(n+2)
Answer» N^3 + 3N^2 + 5N + 3 =n^3 + 3n^2 + 2n+3n + 3 =n(n^2 + 3n + 2)+3n + 3 =n(n+1)(n+2)+3n+3

Discussion

37.	Numerical value of sin 12 degree into sin 48 degree into sin 54 degree equals to
Answer» SIN 12 X sin 48 x sin 54 = 0.125

Discussion

38.	a passenger train running at 60 km/hr leaves the railway station 5 hours after a goods train had left and overtakes it in 4 hours. what is the speed of the goods train?
Answer» 605 = X (5+4) » x = 300/9= 80/3= 26.67 KMPH

Discussion

39.	Probability examples of cards in hindi 1 rbse
Answer» PROBABILITY =no of EXAMPLES /TOTAL no.

Discussion

40.	The number of process completed per unit time is known as
Answer» FREQUENCY if REGARDED to Sound Velocity if regarded to DISTANCE and SPEED

Discussion

41.	Primeter of a rectanglar plot is 156m and breath is 34 m find its area
Answer» Perimeter of a RECTANGLE= 2(l+b) =>2(l+38) =156 =>l+38 =78 =>l=40 m Area of a rectangle = l×b =40 ×38 =1520 m²

Discussion

42.	(m+n)^−1×(m^−1+n^−1)=(mn)^−1Pls explain
Answer» (m+n)^−1×(m^−1+n^−1)=(MN)^−1 =(m+1)(n+1)=mn+m+n+1 =(mn−1)+(m+1)+(n+1)

Discussion

43.	5 + x/ 5-x - 5-x/ 5+x = 15/4Solve the following quadratic equation by factorisation
Answer» ANSWER: Step-by-step EXPLANATION:

43.

5 + x/ 5-x - 5-x/ 5+x = 15/4Solve the following quadratic equation by factorisation

Answer»

ANSWER:

Step-by-step EXPLANATION:

Discussion

44.	Ratio And Proportion Examples give me no spam
Answer» FIRST Pic Is Of Proportion And Other One Is Ratio. If It Is RIGHT Plz.. Mark As BRAINLIEST..

Discussion

45.	Identify a quadrilateral which has four sides of equal length and 4 right angles
Answer» It's SQUARE as SQUARES are QUADRILATERAL too

Discussion

46.	75cm:1m 25 cm and $10: $7..50
Answer» HEY MATE here both UNITS are DIFFERENT... and what is the QUESTION.??

Discussion

47.	For what value of know, the roots of the quadratic equation kx (x-2root5)+10=0
Answer» Kx²-2√5kx+10=0 what can PROVE

Discussion

48.	If x=rsinAcosC ,y=rsinAsinC and z=rcosA,prove that
Answer» HOPE this HELPS you☺️☺️

Discussion

49.	P(x)=-x2-4x-5 graph
Answer» Xy0−51−82−93−84−5xy0-51-82-93-84-5

Discussion

50.	PLS ANSWER THIS FAST...............I WILL MARK IT AS BRAINLIESTWrite three possible set of values for the dimensions of a cuboid whose volume is given by y³+8y²+17y+10,where y is a natural number
Answer» 1. (y+2)×(y+5)×{(y+1)(y+1)(y+1)} 2. {(y+2)×(y+1)}×(y+5)×{(y+1)×(y+1)} 3. {(y+2)×(y+1)}×{(y+5)×(y+1)} ×(y+1)

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Is investing in share profitable or a risk

Prove that every bounded monotonic sequence is convergent

Prove that product of 3 positive consecutive integers is divisible by 6 0

Find the smallest number by which 1152 must be divided so that it becomes a perfect square.Also,find the number whose square is the resulting number

What is chord in circle

5^5/9 % = ?please solve it.

Ramu can do a work in 10 days and shamu can do that work in 15 days

What is the summation of infinity?????

Pls answer it fast............i will mark it as brainliestIf 49x²-b²=(7x+1/2)(7x-1/2) find the value of b

How to calculate smallest 5 digit no. which is exactly divisible by 7,12,15,16

A new computer costs rupees 60000.The depreciation is 40% every year.Find the price of the computer after two years

Paul and peter can do a piece of work in 60 days, while paul can do it alone in 80 days. how many days will peter take to complete the work alone?

A player tosses 3 fair coins. he wins rs 5 if three heads appear

Prove that 2^n can be expressed as sum of two consecutive numbers

Prove that sinx^6 + cosx^6 + 3cosx^2+ sinx^2/( 1+ tan²x)(1-sin²x) = 1

Evaluate :sin(nπ+(−1)nπ4) where n is an integer,

21 or 25 question please solve it

If a,b,c are i A.P and G.P prove a=b=c

63.63 = m{21+(n/100)}

In the given figure , AB||CD.prove that p+q-r=180 Plz solve it so important p,lz .......

Is calculator permitted for icse 2017 math exam?

Why children wasting time on Internet and any website

In a pie chart two or more central angles can be equal.

One side of a right angle triangle is 2 centimetre then the other and to centimetre less than the hypotenuse how long are the three sides

3 of phone numbers have a sum of 22, if average of 4 numbers is 8, what is the 4th number

3/5 of cistern is filled in 1minute how much more time will be required to fill the of it

Product of zeros of polynomial (ax²-6x-6) is 6, find the valur of a

What is the lateral surface area of a cube of side 5cm

16x^ - 24x-1=0 solve by complete square

What is Square & Square Root of 2 Digit No

if sin/a=cos/b then asin2+bcos2

Find four consecutive term ina.p whose sum is 12 qn

A manufacturer sold an article at 18% gain wholeseller sold it to retailer at 20% gain retailer sold it 25% gain to customer if cutomer paid 30.09 rupees find the cost price to manufacturer

2 numbers ratio 7:9.if 12 subtracted from each of them then ratio 3:5 the small no what

N^3+3n^2+5n+3 is divisible by 3 mathematical induction n(n+1)(n+2)

Numerical value of sin 12 degree into sin 48 degree into sin 54 degree equals to

a passenger train running at 60 km/hr leaves the railway station 5 hours after a goods train had left and overtakes it in 4 hours. what is the speed of the goods train?

Probability examples of cards in hindi 1 rbse

The number of process completed per unit time is known as

Primeter of a rectanglar plot is 156m and breath is 34 m find its area

(m+n)^−1×(m^−1+n^−1)=(mn)^−1Pls explain

5 + x/ 5-x - 5-x/ 5+x = 15/4Solve the following quadratic equation by factorisation

Ratio And Proportion Examples give me no spam

Identify a quadrilateral which has four sides of equal length and 4 right angles

75cm:1m 25 cm and $10: $7..50

For what value of know, the roots of the quadratic equation kx (x-2root5)+10=0

If x=rsinAcosC ,y=rsinAsinC and z=rcosA,prove that

P(x)=-x2-4x-5 graph

PLS ANSWER THIS FAST...............I WILL MARK IT AS BRAINLIESTWrite three possible set of values for the dimensions of a cuboid whose volume is given by y³+8y²+17y+10,where y is a natural number