332354 + Interview Questions in Secondary School in Math

1.	Factorise (x-3)(x+2)(x-6)(x-1)+56
Answer» Step-by-step explanation: (x-3)(x+2)(x-6)(x-1)+56=0. Four SOLUTIONS were found : x = 5; x = -1; x =(4-√32)/2=2-2√ 2 = -0.828; x =(4+√32)/2=2+2√ 2 = 4.828 ...

1.

Factorise (x-3)(x+2)(x-6)(x-1)+56

Answer»

Step-by-step explanation:

(x-3)(x+2)(x-6)(x-1)+56=0. Four SOLUTIONS were found : x = 5; x = -1; x =(4-√32)/2=2-2√ 2 = -0.828; x =(4+√32)/2=2+2√ 2 = 4.828 ...

Discussion

2.	3.Evaluate:(i) 3/8x125
Answer» ANSWER: 3/10 Step-by-step explanation: 3/ $\sqrt[3]{8 \times 125}$ = 3/2×5 = 3/10

2.

3.Evaluate:(i) 3/8x125

Answer»

ANSWER:

3/10

Step-by-step explanation:

3/

$\sqrt[3]{8 \times 125}$

= 3/2×5

= 3/10

Discussion

3.	Find a quadric polynomial each with given no.as the sum and product it's zero.4,1
Answer» $\huge\underline{ \underline{ \bf{ \blue{ \: solution \: : = }}}}$ $\large\underline{ \underline{ \green{ \bold {given}}}} = >$ $\bf \alpha + \beta = 4 \\ \alpha \beta = 1$ $\boxed{ \fbox{ \purple {{x}^{2} + ( \alpha + \beta )x + (\alpha \beta )}}}$ ${x}^{2} + (4)x + 1 \\ \bf \: quadratic \: equation \: = > \\ \\ {x}^{2} + 4x + 1$ __________________________________ Quadratic equation= Quadratic equation=A POLYNOMIAL of degree 2 is CALLED a quadratic equation. it means that the LEADING term has a variable with an exponent 2. Degree:- highest power in the equation is called the degree of the equation.

3.

Find a quadric polynomial each with given no.as the sum and product it's zero.4,1

Answer»

$\huge\underline{ \underline{ \bf{ \blue{ \: solution \: : = }}}}$

$\large\underline{ \underline{ \green{ \bold {given}}}} = >$

$\bf \alpha + \beta = 4 \\ \alpha \beta = 1$

$\boxed{ \fbox{ \purple {{x}^{2} + ( \alpha + \beta )x + (\alpha \beta )}}}$

${x}^{2} + (4)x + 1 \\ \bf \: quadratic \: equation \: = > \\ \\ {x}^{2} + 4x + 1$

__________________________________

Quadratic equation=

Quadratic equation=A POLYNOMIAL of degree 2 is CALLED a quadratic equation.

it means that the LEADING term has a variable with an exponent 2.

Degree:-

highest power in the equation is called the degree of the equation.

Discussion

4.	Ravi deposits Rs. 2400 per monthin a RD scheme of a bank for oneyear. If he gets Rs. 1248 asinterest at the time of maturity,find the rate of interest and alsofind the maturity amount of thedeposit.8% and Rs. 3,0486% and Rs. 30, 00488% and Rs. 30,0486% and 30,0458
Answer» Answer: BHAI MAINE KOII DEPOSIT NHI kiya....

4.

Ravi deposits Rs. 2400 per monthin a RD scheme of a bank for oneyear. If he gets Rs. 1248 asinterest at the time of maturity,find the rate of interest and alsofind the maturity amount of thedeposit.8% and Rs. 3,0486% and Rs. 30, 00488% and Rs. 30,0486% and 30,0458

Answer»

Answer:

BHAI MAINE KOII

DEPOSIT NHI kiya....

Discussion

5.	Find a quadric polynomial each with given no.as the sum and product it's zero.-1/4,1/4
Answer» ANSWER: The quadratic POLYNOMIAL is $4x^{2}$ -x+1=0 Step-by-step EXPLANATION: given (α+β)= $\frac{-1}{4}$ , αβ= $\frac{1}{4}$ formula for quadratic polynomial is $x^{2}$ -(α+β)x+αβ=0 if we substitute the given VALUES in above equation we will get answer $4x^{2}$ -x+1=0

5.

Find a quadric polynomial each with given no.as the sum and product it's zero.-1/4,1/4

Answer»

ANSWER:

The quadratic POLYNOMIAL is $4x^{2}$ -x+1=0

Step-by-step EXPLANATION:

given (α+β)= $\frac{-1}{4}$ , αβ= $\frac{1}{4}$

formula for quadratic polynomial is $x^{2}$ -(α+β)x+αβ=0

if we substitute the given VALUES in above equation we will get answer

$4x^{2}$ -x+1=0

Discussion

6.	Write the expansion for(a+1)^3
Answer» ANSWER: (a³+2a²+3a+2). Step-by-step EXPLANATION: = (a+1)(a+1)(a+1) = (a²+1+a+1)(a+1) = (a²+a+2)(a+1) = (a³+a²+2a+a²+a+2) = (a³+2a²+3a+2) HOPE this HELPS,

6.

Write the expansion for(a+1)^3

Answer»

ANSWER:

(a³+2a²+3a+2).

Step-by-step EXPLANATION:

= (a+1)(a+1)(a+1)

= (a²+1+a+1)(a+1)

= (a²+a+2)(a+1)

= (a³+a²+2a+a²+a+2)

= (a³+2a²+3a+2)

HOPE this HELPS,

Discussion

7.	(x2-2xy+3y2)+(5y2+3xy-6x2)
Answer» ANSWER: x^2-2xy+3y^2+5y^2+3xy-6x^2 =x^2-6x^2-2xy+3xy+3y^2+5y^2 =-5x^+xy+8y^2 ans Step-by-step EXPLANATION: I HOPE it HELPFUL

7.

(x2-2xy+3y2)+(5y2+3xy-6x2)

Answer»

ANSWER:

x^2-2xy+3y^2+5y^2+3xy-6x^2

=x^2-6x^2-2xy+3xy+3y^2+5y^2

=-5x^+xy+8y^2 ans

Step-by-step EXPLANATION:

I HOPE it HELPFUL

Discussion

8.	4+7/8 solve addition sum
Answer» ANSWER: 4.875 Step-by-step EXPLANATION: just CALCULATE

8.

4+7/8 solve addition sum

Answer»

ANSWER: 4.875

Step-by-step EXPLANATION: just CALCULATE

Discussion

9.	In an ap 21 terms the sum of first 3term is -33 and that of middle 3 is 75 what is the sum of the ap ?
Answer» $\blue{\bold{\underline{\underline{Answer:}}}}$ $\green{\tt{\therefore{Sum\:of\:A.P=2037}}}$ $\orange{\bold{\underline{\underline{Step-by-step\:explanation:}}}}$ $\green{\underline \bold{<klux>GIVEN</klux> :}} \\ \tt: \implies Number \: of \: terms = 21 \\ \\ \tt: \implies Sum \: of \: first \: 3 \: terms = - 33 \\ \\ \tt: \implies Sum \: of \: next \: three = 75 \\ \\ \red{\underline \bold{To \: Find :}} \\ \tt: \implies Sum \:of \: A.P = ?$ • ACCORDING to given QUESTION : $\bold{For \: sum \: of \: first \: three \: term} \\ \tt: \implies s_{3} = \frac{3}{2}(2a + (3 - 1) \times d) \\ \\ \tt: \implies - 33 = \frac{3}{2} (2a + 2d) \\ \\ \tt: \implies - 33 = 3(a + d) \\ \\ \tt: \implies a + d = - 11 - - - - - (1) \\ \\ \bold{For \: next \: three \: sum \: of \: terms} \\ \tt: \implies 75 = \frac{3}{2} (2(a + 3d) + (3 - 1)d) \\ \\ \tt: \implies \frac{150}{3} = 2a + 6d + 2d \\ \\ \tt: \implies 50 = 2a + 8d \\ \\ \tt: \implies a + 4d = 25 - - - - - (2) \\ \\ \text{Subtracting \: (1) \: from \: (2)} \\ \tt: \implies 4d - d = 25 - ( - 11)$ $\tt: \implies 3d = 36 \\ \\ \tt: \implies d = \frac{36}{3} \\ \\ \green{\tt: \implies d = 12} \\ \\ \text{Putting \: value \: of \: d \: in \: (2)} \\ \tt: \implies a + 4 \times 12 = 25 \\ \\ \tt: \implies a + 48 = 25 \\ \\ \tt: \implies a = 25 - 48 \\ \\ \green{\tt: \implies a = - 23} \\ \\ \bold{As \: we \: know \: that} \\ \tt: \implies s_{n} = \frac{n}{2} (2a + (n - 1)d) \\ \\ \tt: \implies s_{21} = \frac{21}{2} (2 \times - 23 + (21 - 1) \times 12) \\ \\ \tt: \implies s_{21} = \frac{21}{2} ( - 46 + 240) \\ \\ \tt: \implies s_{21} = \frac{21}{2} \times 194 \\ \\ \green{\tt: \implies s_{21} =2037 }$

9.

In an ap 21 terms the sum of first 3term is -33 and that of middle 3 is 75 what is the sum of the ap ?

Answer»

$\blue{\bold{\underline{\underline{Answer:}}}}$

$\green{\tt{\therefore{Sum\:of\:A.P=2037}}}$

$\orange{\bold{\underline{\underline{Step-by-step\:explanation:}}}}$

$\green{\underline \bold{<klux>GIVEN</klux> :}} \\ \tt: \implies Number \: of \: terms = 21 \\ \\ \tt: \implies Sum \: of \: first \: 3 \: terms = - 33 \\ \\ \tt: \implies Sum \: of \: next \: three = 75 \\ \\ \red{\underline \bold{To \: Find :}} \\ \tt: \implies Sum \:of \: A.P = ?$

• ACCORDING to given QUESTION :

$\bold{For \: sum \: of \: first \: three \: term} \\ \tt: \implies s_{3} = \frac{3}{2}(2a + (3 - 1) \times d) \\ \\ \tt: \implies - 33 = \frac{3}{2} (2a + 2d) \\ \\ \tt: \implies - 33 = 3(a + d) \\ \\ \tt: \implies a + d = - 11 - - - - - (1) \\ \\ \bold{For \: next \: three \: sum \: of \: terms} \\ \tt: \implies 75 = \frac{3}{2} (2(a + 3d) + (3 - 1)d) \\ \\ \tt: \implies \frac{150}{3} = 2a + 6d + 2d \\ \\ \tt: \implies 50 = 2a + 8d \\ \\ \tt: \implies a + 4d = 25 - - - - - (2) \\ \\ \text{Subtracting \: (1) \: from \: (2)} \\ \tt: \implies 4d - d = 25 - ( - 11)$

$\tt: \implies 3d = 36 \\ \\ \tt: \implies d = \frac{36}{3} \\ \\ \green{\tt: \implies d = 12} \\ \\ \text{Putting \: value \: of \: d \: in \: (2)} \\ \tt: \implies a + 4 \times 12 = 25 \\ \\ \tt: \implies a + 48 = 25 \\ \\ \tt: \implies a = 25 - 48 \\ \\ \green{\tt: \implies a = - 23} \\ \\ \bold{As \: we \: know \: that} \\ \tt: \implies s_{n} = \frac{n}{2} (2a + (n - 1)d) \\ \\ \tt: \implies s_{21} = \frac{21}{2} (2 \times - 23 + (21 - 1) \times 12) \\ \\ \tt: \implies s_{21} = \frac{21}{2} ( - 46 + 240) \\ \\ \tt: \implies s_{21} = \frac{21}{2} \times 194 \\ \\ \green{\tt: \implies s_{21} =2037 }$

Discussion

10.	Alpha is equal to 5 and beta is equal to 3. find quadratic equation
Answer» ANSWER: x^2 - 8X + 15 = 0 Step-by-step explanation: α = 5,β = 3 αβ = 15 α+β = 8 so the quadratric EQUATION is of the form x^2 - (α+β)x + (αβ) = 0 hence, x^2 - 8x + 15 = 0 hoping that you are helped give brainliest if i am correct

10.

Alpha is equal to 5 and beta is equal to 3. find quadratic equation

Answer»

ANSWER:

x^2 - 8X + 15 = 0

Step-by-step explanation:

α = 5,β = 3

αβ = 15

α+β = 8

so the quadratric EQUATION is of the form

x^2 - (α+β)x + (αβ) = 0

hence,

x^2 - 8x + 15 = 0

hoping that you are helped

give brainliest if i am correct

Discussion

11.	A=(p,q) write the sbset for the problem
Answer» <P>A = ( p,Q ) SUBSETS of A = {{p},{q},{p,q}}

11.

A=(p,q) write the sbset for the problem

Answer»

<P>A = ( p,Q )

SUBSETS of A = {{p},{q},{p,q}}

Discussion

12.	__×_=__+__=__ 1 to 9 one time use
Answer» ANSWER:what QUESTION is this ANYWAY the answer is 1324 Step-by-step EXPLANATION:

12.

__×_=+=__ 1 to 9 one time use

Answer»

ANSWER:what QUESTION is this ANYWAY the answer is 1324

Step-by-step EXPLANATION:

Discussion

13.	To get 1,we should multiply 8/21 by?
Answer» ANSWER: we should MULTI[PLY it by 21/8 Step-by-step explanation: 1/8/21 1*21/8

13.

To get 1,we should multiply 8/21 by?

Answer»

ANSWER:

we should MULTI[PLY it by 21/8

Step-by-step explanation:

1/8/21

1*21/8

Discussion

14.	Among 2.6, 2.006, 2.66 and 2.08, the largest number is
Answer» Answer: 2.66 is the LARGEST NUMBER

14.

Among 2.6, 2.006, 2.66 and 2.08, the largest number is

Answer»

Answer:

2.66 is the LARGEST NUMBER

Discussion

15.	If y=3x-100 and x=50 then the value of y=
Answer» If this SOLUTION really helps you Than plz Mark me as brainlist And FOLLOW me I will follow u BACK

15.

If y=3x-100 and x=50 then the value of y=

Answer»

If this SOLUTION really helps you

Than plz Mark me as brainlist

And FOLLOW me

I will follow u BACK

Discussion

16.	If a=5+2root6and b=1/a then find the value of aa2+b^2
Answer» Answer: a=5+2√6 b=1/a = RATIONALISING the VALUE of 'b'=1/a =1/5+2√6 =1x5-2√6/5+2√6x5-2√6 =5-2√6/(5)^2 - (2√6)^2 =5-2√6/25-24 =5-2√6/1 =5-2√6=b to find: 2+b^2 =2+(5-2√6)^2 =2+(5)^2+(2√6)^2-2x5x2√6 =2+25+24-20√6 =51-20√6 hope this will help you..

16.

If a=5+2root6and b=1/a then find the value of aa2+b^2

Answer»

Answer:

a=5+2√6

b=1/a

= RATIONALISING the VALUE of 'b'=1/a

=1/5+2√6

=1x5-2√6/5+2√6x5-2√6

=5-2√6/(5)^2 - (2√6)^2

=5-2√6/25-24

=5-2√6/1 =5-2√6=b

to find: 2+b^2

=2+(5-2√6)^2

=2+(5)^2+(2√6)^2-2x5x2√6

=2+25+24-20√6

=51-20√6

hope this will help you..

Discussion

17.	Five students P, Q, R, S and T study in a class of these P and Q study physics and chemistry R and Q study physics and mathematics S and P study biology and chemistry T and Q study chemistry and mathematics T and S study chemistry and mathematics. Who among the students studies maximum number of subjects:-
Answer» ANSWER: Q STUDIES the most SUBJECT

17.

Five students P, Q, R, S and T study in a class of these P and Q study physics and chemistry R and Q study physics and mathematics S and P study biology and chemistry T and Q study chemistry and mathematics T and S study chemistry and mathematics. Who among the students studies maximum number of subjects:-

Answer»

ANSWER:

Q STUDIES the most SUBJECT

Discussion

18.	X% of 80=16 what is the value of x
Answer» ANSWER: $\frac{x}{100} \times 80 = 16 \\ x = \frac{16 \times 100}{80} = 20$ STAY HOME stay SAFE ❤️❤️

18.

X% of 80=16 what is the value of x

Answer»

ANSWER:

$\frac{x}{100} \times 80 = 16 \\ x = \frac{16 \times 100}{80} = 20$

STAY HOME stay SAFE ❤️❤️

Discussion

19.	Find the LCM of 32,48,60,72 by division method
Answer» ANSWER: LCM(32,48,60) Least Common Multiple is : 480 Calculate Least Common Multiple for : 32, 48 and 60 Factorize of the above numbers : 32 = 25 48 = 24 • 3 60 = 22 • 3 • 5 Build a prime FACTORS table

19.

Find the LCM of 32,48,60,72 by division method

Answer»

ANSWER:

LCM(32,48,60)

Least Common Multiple is :

480

Calculate Least Common Multiple for :

32, 48 and 60

Factorize of the above numbers :

32 = 25

48 = 24 • 3

60 = 22 • 3 • 5

Build a prime FACTORS table

Discussion

20.	0.92675 express the number in the form of p/a
Answer» Answer: 92675/100000 Step-by-step explanation: 0.92675=92675/100000

20.

0.92675 express the number in the form of p/a

Answer»

Answer:

92675/100000

Step-by-step explanation:

0.92675=92675/100000

Discussion

21.	Find value under root162 upon under root 2
Answer» Answer: Hey FRIEND, Here is the answer you were looking for: \frac{ \sqrt{162} }{ \sqrt{2} } \\ Splitting we get, = \frac{ \sqrt{2 \TIMES 9 \times 9} }{ \sqrt{2} } \\ \\ = \frac{9 \sqrt{2} }{ \sqrt{2} } \\ On RATIONALIZING the DENOMINATOR we get, = \frac{9 \sqrt{2} }{ \sqrt{2} } \times \frac{ \sqrt{2} }{ \sqrt{2} } \\ \\ = \frac{9 \sqrt{2} \times \sqrt{2} }{ {( \sqrt{2} )}^{2} } \\ \\ = \frac{9 \times 2}{2} \\ \\ = 9 Step-by-step EXPLANATION:

21.

Find value under root162 upon under root 2

Answer»

Answer:

Hey FRIEND,

Here is the answer you were looking for:

\frac{ \sqrt{162} }{ \sqrt{2} } \\

Splitting we get,

= \frac{ \sqrt{2 \TIMES 9 \times 9} }{ \sqrt{2} } \\ \\ = \frac{9 \sqrt{2} }{ \sqrt{2} } \\

On RATIONALIZING the DENOMINATOR we get,

= \frac{9 \sqrt{2} }{ \sqrt{2} } \times \frac{ \sqrt{2} }{ \sqrt{2} } \\ \\ = \frac{9 \sqrt{2} \times \sqrt{2} }{ {( \sqrt{2} )}^{2} } \\ \\ = \frac{9 \times 2}{2} \\ \\ = 9

Step-by-step EXPLANATION:

Discussion

22.	The selling price of an article is 5/4 of the cost price,the gain percent is?
Answer» Answer: he apna NE kon SE KITAB me se liya HA please follow me then I give this QUESTION answer

22.

The selling price of an article is 5/4 of the cost price,the gain percent is?

Answer»

Answer:

he apna NE kon SE KITAB me se liya HA please follow me then I give this QUESTION answer

Discussion

23.	Divide m²-14m-32 bymtz
Answer» Step-by-step EXPLANATION: MJU MTZ MXY mooo DIVIDE

23.

Divide m²-14m-32 bymtz

Answer»

Step-by-step EXPLANATION:

MJU MTZ MXY mooo DIVIDE

Discussion

24.	Every natural is a whole number
Answer» ❤YES ❤EVERY NATURAL NUMBER IS A WHOLE NUMBER ❤BUT ❤EVERY WHOLE NUMBER IS NOT A NATURAL NUMBER

24.

Every natural is a whole number

Answer»

❤YES

❤EVERY NATURAL NUMBER IS A WHOLE NUMBER

❤BUT

❤EVERY WHOLE NUMBER IS NOT A NATURAL NUMBER

Discussion

25.	Write down the zeroes of a polynomial whose factors are (x- 100) and ( x + 100)????????
Answer» Answer: 100,-100 Step-by-step EXPLANATION: x-100=0 x=100 x+100=0 x=-100

25.

Write down the zeroes of a polynomial whose factors are (x- 100) and ( x + 100)????????

Answer»

Answer:

100,-100

Step-by-step EXPLANATION:

x-100=0

x=100

x+100=0

x=-100

Discussion

26.	Mr.kheshon gets Rs.6455 at the end of first year @ 14% per anumin a RD account. Find the monthlyinstalment?Rs. 500Rs. 501Rs. 545Rs. 505
Answer» Step-by-step EXPLANATION: Maturity Amount=rs6455 Number of MONTH (TIME or n)=1×12r Rate=14% we know,Maturity Amount=Pn+interest Hence, 6455=(12×P)+p×n(n+1)/2×24 ×14/100 ==6455=12p+13p×7/100 ==6455=1200p+91p/100 ==6455×100/1291=p ==500=p Hence,P=500

26.

Mr.kheshon gets Rs.6455 at the end of first year @ 14% per anumin a RD account. Find the monthlyinstalment?Rs. 500Rs. 501Rs. 545Rs. 505

Answer»

Step-by-step EXPLANATION:

Maturity Amount=rs6455

Number of MONTH (TIME or n)=1×12r

Rate=14%

we know,Maturity Amount=Pn+interest

Hence,

6455=(12×P)+p×n(n+1)/2×24 ×14/100

==6455=12p+13p×7/100

==6455=1200p+91p/100

==6455×100/1291=p

==500=p

Hence,P=500

Discussion

27.	7. In the given figure, PQ is perpendicular to AB, AQ = QB,angle PAC = 42°, angle = 68º. Find angle ABC
Answer» ANSWER: there is no FIGURE in the question Step-by-step explanation: no PROPER figure RELATED to the question

27.

7. In the given figure, PQ is perpendicular to AB, AQ = QB,angle PAC = 42°, angle = 68º. Find angle ABC

Answer»

ANSWER:

there is no FIGURE in the question

Step-by-step explanation:

no PROPER figure RELATED to the question

Discussion

28.	How many three letter words can be formed tusing the letters of the word "Hexagon".(Any arrangement of letters is consider as word even though it might not have meaning or pronunciation.
Answer» Answer:7 Step-by-step EXPLANATION: i just COUNTED

28.

How many three letter words can be formed tusing the letters of the word "Hexagon".(Any arrangement of letters is consider as word even though it might not have meaning or pronunciation.

Answer»

Answer:7

Step-by-step EXPLANATION: i just COUNTED

Discussion

29.	14÷(3 of 2 - 3 + 4) - 9(5 - 3)
Answer» ANSWER: The answer is 5/9 Step-by-step EXPLANATION: HOPE IT WON'T HELP YOU

29.

14÷(3 of 2 - 3 + 4) - 9(5 - 3)

Answer»

ANSWER:

The answer is 5/9

Step-by-step EXPLANATION:

HOPE IT WON'T HELP YOU

Discussion

30.	Do you want ,Your base of study tobe strong just go to YouTubeand search for channel new age shiksha here you will found the videos which will strong your base and you will find tricks too to study and learn anything so,just go and search for it
Answer» ANSWER: OK but FIRST MARK me in BRAINLIST

30.

Do you want ,Your base of study tobe strong just go to YouTubeand search for channel new age shiksha here you will found the videos which will strong your base and you will find tricks too to study and learn anything so,just go and search for it

Answer»

ANSWER:

OK but FIRST MARK me in BRAINLIST

Discussion

31.	Need answers for these blanks
Answer» Answer: o)-1 p) coefficient of x & constant q) x-5-3=0 x-8=0 r) TWO variables s) in RIGHT angled triangle the square of HYPOTENUSE is equal to the sum of squares of other sides

31.

Need answers for these blanks

Answer»

Answer:

o)-1

p) coefficient of x & constant

q) x-5-3=0

x-8=0

r) TWO variables

s) in RIGHT angled triangle the square of HYPOTENUSE is equal to the sum of squares of other sides

Discussion

32.	The price of a scooter is 34000 it increases by 25% this year what is the current price
Answer» ANSWER: Since price is increased by 25% It means that it is 100+25=125% of the original price so 125%of 34000=125/100×34000 =125×340 =42500

32.

The price of a scooter is 34000 it increases by 25% this year what is the current price

Answer»

ANSWER:

Since price is increased by 25%

It means that it is 100+25=125% of the original price

so 125%of 34000=125/100×34000

=125×340

=42500

Discussion

33.	Tan (x+100) = tan (x+50) tanx tan(x-50) find x from the question
Answer» ANSWER: search on Google or INTERNET PLEASE follow me SORRY

33.

Tan (x+100) = tan (x+50) tanx tan(x-50) find x from the question

Answer»

ANSWER:

search on Google or INTERNET PLEASE follow me SORRY

Discussion

34.	If the equation 4x²-3xK+ 1 = 0 equal roots,a then find the value of k.
Answer» Step-by-step EXPLANATION: For EQUAL ROOTS D =0 As we KNOW that $d = \sqrt{ {b}^{2} - 4ac} \\ 0 = \sqrt{ ({ - 3k)}^{2} - 4 \times 4 \times 1} \\ = > 0 = \sqrt{9 {k}^{2} - 16} \\ = > 0 = 9 {k}^{2} - 16 \\ = > 9 {k}^{2} = 16 \\ = > {k}^{2} = \frac{16}{9} \\ = > k = \frac{4}{3}$

34.

If the equation 4x²-3xK+ 1 = 0 equal roots,a then find the value of k.

Answer»

Step-by-step EXPLANATION:

For EQUAL ROOTS

D =0

As we KNOW that

$d = \sqrt{ {b}^{2} - 4ac} \\ 0 = \sqrt{ ({ - 3k)}^{2} - 4 \times 4 \times 1} \\ = > 0 = \sqrt{9 {k}^{2} - 16} \\ = > 0 = 9 {k}^{2} - 16 \\ = > 9 {k}^{2} = 16 \\ = > {k}^{2} = \frac{16}{9} \\ = > k = \frac{4}{3}$

Discussion

35.	Answer it plz fastthere are 2 sums
Answer» ANSWER: Hey MATE. Here you GO with the first answer. Sorry, but I am not able to understand the SECOND question.Can you please repost it ASAP.

35.

Answer it plz fastthere are 2 sums

Answer»

ANSWER:

Hey MATE. Here you GO with the first answer.

Sorry, but I am not able to understand the SECOND question.Can you please repost it ASAP.

Discussion

36.	1. Evaluate the followinga (-36)÷ (9)b. 150 ÷ (-25)C (-270) ÷27d. (-59) ÷59è 0 + (+7)f. (-784) ÷ (-56)
Answer» ANSWER: a). -36/9=-4 b) 150/(-25) =-6 c). -270/27=-10 d). -59/59=-1 e). 0+7=7 f) -784/(-56) =14

36.

1. Evaluate the followinga (-36)÷ (9)b. 150 ÷ (-25)C (-270) ÷27d. (-59) ÷59è 0 + (+7)f. (-784) ÷ (-56)

Answer»

ANSWER:

a).

-36/9=-4

b) 150/(-25) =-6

c). -270/27=-10

d). -59/59=-1

e). 0+7=7

f) -784/(-56) =14

Discussion

37.	Please please please help me.please give me this answer. ❤❤❤
Answer» yeapna KON SE KITAB me se LIYA HAI

Discussion

38.	➡️Please answer, if you felt this easy then definitely ☑ check out my profile and kindly answer my questions
Answer» Step-by-step explanation: A complete WORKS in 40 DAYS & it is twice good as B so that for this work B complete it in 2*40 = 80 days T=1/W => A work W = 1/40 => B work W = 1/80 total work = 1/40 + 1/80 = 3/80 total time if they do together = 80/3 = 26.7 days

38.

➡️Please answer, if you felt this easy then definitely ☑ check out my profile and kindly answer my questions

Answer»

Step-by-step explanation:

A complete WORKS in 40 DAYS & it is twice good as B

so that for this work B complete it in 2*40 = 80 days

T=1/W

=> A work W = 1/40

=> B work W = 1/80

total work = 1/40 + 1/80 = 3/80

total time if they do together = 80/3 = 26.7 days

Discussion

39.	Natural number are whole numbers true or false??
Answer» Step-by-step EXPLANATION: TRUE... NATURAL no. are whole no. Plz MARK me BRAINLIEST

39.

Natural number are whole numbers true or false??

Answer»

Step-by-step EXPLANATION:

TRUE...

NATURAL no. are whole no.

Plz MARK me BRAINLIEST

Discussion

40.	Everyentegeris a big rationalnumber
Answer» ANSWER: yes U r RIGHT Step-by-step EXPLANATION: *MARK* as *brainliest*

40.

Everyentegeris a big rationalnumber

Answer»

ANSWER:

yes U r RIGHT

Step-by-step EXPLANATION:

MARK as brainliest

Discussion

41.	Solve:(x+1)(x+9)_(x+6)(x+10)(x+2)(x+4) (x+5)(x+7)
Answer» 1. $\display (x + 1) (x + 9) - (x + 6) (x + 10)$ $⇒ {x}^{<klux>2</klux>} + x + 9x + 9 - (x + 6) (x + 10)$ $⇒ {x}^{2} + x + 9x + 9 - {x}^{2} + 6x + 10x + 60$ $⇒ {x}^{2} + 10x + 9 - {x}^{2} + 16x + 60$ $⇒ 0 - 6x - 51$ 2. $(x+2)(x+4) (x+5)(x+7)$ $⇒ {x}^{2} + 2x + 4x + 8 × {x}^{2} + 5x + 7x + 35$ $⇒ {x}^{2} + 6x + 8 × {x}^{2} + 12x + 35$ $⇒ {35x}^{2} + 210x + 280 + {12x}^{3} + {72x}^{2} + 96x + {x}^{4} - {6x}^{3} + {8x}^{2}$ $⇒ {115x}^{2} + 306x + 280 + {6x}^{3} + {x}^{4}$

41.

Solve:(x+1)(x+9)_(x+6)(x+10)(x+2)(x+4) (x+5)(x+7)

Answer»

1. $\display (x + 1) (x + 9) - (x + 6) (x + 10)$

$⇒ {x}^{<klux>2</klux>} + x + 9x + 9 - (x + 6) (x + 10)$

$⇒ {x}^{2} + x + 9x + 9 - {x}^{2} + 6x + 10x + 60$

$⇒ {x}^{2} + 10x + 9 - {x}^{2} + 16x + 60$

$⇒ 0 - 6x - 51$

2. $(x+2)(x+4) (x+5)(x+7)$

$⇒ {x}^{2} + 2x + 4x + 8 × {x}^{2} + 5x + 7x + 35$

$⇒ {x}^{2} + 6x + 8 × {x}^{2} + 12x + 35$

$⇒ {35x}^{2} + 210x + 280 + {12x}^{3} + {72x}^{2} + 96x + {x}^{4} - {6x}^{3} + {8x}^{2}$

$⇒ {115x}^{2} + 306x + 280 + {6x}^{3} + {x}^{4}$

Discussion

42.	Sonia has a RD account in a bankand deposited Rs.600 per monthfor 2.5 years. If the rate of interestwas 10% per annum. Find thematurity value of this account.Rs.2435Rs.20345Rs.20325Rs.2325
Answer» ANSWER: the answer is Rs.20325 I THINK it will HELPS you

42.

Sonia has a RD account in a bankand deposited Rs.600 per monthfor 2.5 years. If the rate of interestwas 10% per annum. Find thematurity value of this account.Rs.2435Rs.20345Rs.20325Rs.2325

Answer»

ANSWER:

the answer is Rs.20325

I THINK it will HELPS you

Discussion

43.	Evaluate: 3/5+7/3+(-11/5)+(-2/3)
Answer» ANSWER: HEY MATE here is your answer ...... 7/3-2/3+3/5-11/5 5/3-8/5 25-24/15 1/15 Hope it HELPS you.....

43.

Evaluate: 3/5+7/3+(-11/5)+(-2/3)

Answer»

ANSWER:

HEY MATE here is your answer ......

7/3-2/3+3/5-11/5

5/3-8/5

25-24/15

1/15

Hope it HELPS you.....

Discussion

44.	{-3+(-3)}+C-12+C-3) }=(-8).
Answer» ANSWER: WHAT DO I NEED TO SOLVE??? PLZ PLZ PLZ MARK ME AS BRAINLIEST. GOD BLESS YOU. STAY HOME STAY SAFE.

44.

{-3+(-3)}+C-12+C-3) }=(-8).

Answer»

ANSWER:

WHAT DO I NEED TO SOLVE???

PLZ PLZ PLZ MARK ME AS BRAINLIEST.

GOD BLESS YOU.

STAY HOME STAY SAFE.

Discussion

45.	a rectangular gate is made using 6 straight peices of steel. the weight of the the steel is 2.5kg per metre. work out the total weight of the steel gate
Answer» In this sum ,the total LENGTH of steel pieces are not given, so, LET Consider each piece of steel ROD is= 2.5 kg , therefore WEIGHT of 6 pieces will be :-- 6×2.5kg= 15 kg

45.

a rectangular gate is made using 6 straight peices of steel. the weight of the the steel is 2.5kg per metre. work out the total weight of the steel gate

Answer»

In this sum ,the total LENGTH of steel pieces are not given,

so, LET Consider each piece of steel ROD is= 2.5 kg ,

therefore WEIGHT of 6 pieces will be :--

6×2.5kg= 15 kg

Discussion

46.	Find the difference in the place value of 6 in 83465261
Answer» . ANS=(60000-60)=59940

46.

Find the difference in the place value of 6 in 83465261

Answer»

.

ANS=(60000-60)=59940

Discussion

47.	Which rank in the army is equivalent to the naval rank of captain
Answer» *ANSWER* :- $€€ \|\|\\| T\|-\|€ P\|¢ ... !! << *FOLLOW* >> **(♥ω♥)***

47.

Which rank in the army is equivalent to the naval rank of captain

Answer»

ANSWER :-

$€€ ||\| T|-|€ P|¢ ... !!

<< FOLLOW >> ***(♥ω♥*)***

Discussion

48.	Fill in the blanks (-12)×(-2)=____
Answer» ANSWER: (-12) × (-2) =24 Explanation: HOPE you got your answer. PLEASE MARK MY ANSWER AS BRAINLIEST.

48.

Fill in the blanks (-12)×(-2)=____

Answer»

ANSWER:

(-12) × (-2) =24

Explanation:

HOPE you got your answer.

PLEASE MARK MY ANSWER AS BRAINLIEST.

Discussion

49.	If x=a(t+sint),y=a(1-cost) if dx/dy=cotp find p
Answer» ANSWER: $x = a(t + \sin(t) ) \\ \frac{dx}{dt} = a (1 + \cos(t) ) \\ y = a(1 - \cos(t) ) \\ \frac{dy}{dt} = a( \sin(t) ) \\ hence \\ \frac{dx}{dy} = \frac{dx}{dt} \times \frac{dt}{dy} \\ \cot(p) = \frac{a(1 + \cos(t) }{a( \sin(t) )} \\ \cot(p) = \frac{1 + \cos(t) }{ \sin(t) } \\ \cot(p) = \frac{2 { \cos( \frac{t}{2} ) }^{2} }{2 \sin( \frac{t}{2} ) \cos( \frac{t}{2} ) } \\ \cot(p) \: = \cot( \frac{t}{2} ) \\ hence \: \\ p = \frac{t}{2}$

49.

If x=a(t+sint),y=a(1-cost) if dx/dy=cotp find p

Answer»

ANSWER:

$x = a(t + \sin(t) ) \\ \frac{dx}{dt} = a (1 + \cos(t) ) \\ y = a(1 - \cos(t) ) \\ \frac{dy}{dt} = a( \sin(t) ) \\ hence \\ \frac{dx}{dy} = \frac{dx}{dt} \times \frac{dt}{dy} \\ \cot(p) = \frac{a(1 + \cos(t) }{a( \sin(t) )} \\ \cot(p) = \frac{1 + \cos(t) }{ \sin(t) } \\ \cot(p) = \frac{2 { \cos( \frac{t}{2} ) }^{2} }{2 \sin( \frac{t}{2} ) \cos( \frac{t}{2} ) } \\ \cot(p) \: = \cot( \frac{t}{2} ) \\ hence \: \\ p = \frac{t}{2}$

Discussion

50.	Consider the polynomialFind the values of a and b if p(x) has 0 and -2 as it's zeroes
Answer» Answer: ASSOCIATE sohoj soch SOHAN dicks C WEEK HFDPXJ

50.

Consider the polynomialFind the values of a and b if p(x) has 0 and -2 as it's zeroes

Answer»

Answer:

ASSOCIATE sohoj soch SOHAN dicks C WEEK HFDPXJ

Discussion

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<< FOLLOW >> ***(♥ω♥*)***

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