332354 + Interview Questions in Secondary School in Math

1.	She speaks very loudly in class convert to affirmative without changing the meaning
Answer» ANSWER: in the class she speaks very loudly Step-by-step explanation: hoep. it helps U well tq.q....PLZ....MARK as BRAIN list plz.....

1.

She speaks very loudly in class convert to affirmative without changing the meaning

Answer»

ANSWER:

in the class she speaks very loudly

Step-by-step explanation:

hoep. it helps U well

tq.q....PLZ....MARK as BRAIN list plz.....

Discussion

2.	2-14( −13) =16( + 1) +112
Answer» ANSWER: Your answer is -23 Step-by-step explanation: 2-1×4(-1×3) = 1×6×1+1×12 =) 2-4+3 = 6+12 =)2-7 = 18 =)-5 (-18) = 0 =) -23 so, your answer is -23 plz....mark me as BRAINLIEST...

2.

2-14( −13) =16( + 1) +112

Answer»

ANSWER:

Your answer is -23

Step-by-step explanation:

2-1×4(-1×3) = 1×6×1+1×12

=) 2-4+3 = 6+12

=)2-7 = 18

=)-5 (-18) = 0

=) -23

so, your answer is -23

plz....mark me as BRAINLIEST...

Discussion

3.	If alpha & Barezeroes of PolynomialF(x)=3x² - 4x +1. find alpha/beta and beta/alpha
Answer» ANSWER: as i SAID ,your ALPHA and BETA are in my ATTACHMENT

3.

If alpha & Barezeroes of PolynomialF(x)=3x² - 4x +1. find alpha/beta and beta/alpha

Answer»

ANSWER:

as i SAID ,your ALPHA and BETA are in my ATTACHMENT

Discussion

4.	An interesting puzzle. Rajesh has to take a train to Mumbai. He tells his friend Kiran the hour of the train departure and he tells Poornima at which minute it will depart. He also tells both of them that the train leaves between 0800 and 1200. Kiran and Poornima see the train timetable and find the following train timings between those two time: 0833 0844 0851 0918 0947 1020 1033 1118 1120 1151. Kiran then says "I don’t know when Rajesh train leaves but I am sure that Poornima also doesn't know" Poornima responds "I didn’t know his train time earlier, but now i know" Kiran replies "Now I also know the time of the train too!" When is Rajesh train?
Answer» Given: Rajesh has to TAKE a train to Mumbai . He tells HOUR to one frind and minute to one friend To find : When is Rajesh train Solution: Train Timing Hrs Minutes 8 33 44 51 9 18 47 10 20 33 11 18 20 51 Kiran knows only hour so she does not know exact training timing but she is CONFIRMED that Poornima ALSO does not know this mean hour known to Kiran is not having a unique time like 44 or 47 minute => Hour can not be 8 & 9 Poornima earlier did not know that hr can not be 8 & 9 but now she knows that only hr are 10 & 11 so minute can not be 20 Hence option are 10 : 33 , 11 : 18 & 11 : 51 Now kiran also say that she know the timing => hr is not 11 ( as there are two times) Hence Train timing is 10:33 Rajesh Train is at 10 :33 Learn more: SLOVE this puzzle: Steve is taking a bus to Central Park. Steve tells ... brainly.in/question/16527207 Steve is taking a bus to Central Park. Steve tells Alice the hour of his ... brainly.in/question/16468851 Puzzle: Steve is taking a bus to the Central Park. Steve tells Alice the ... brainly.in/question/16550290

4.

An interesting puzzle. Rajesh has to take a train to Mumbai. He tells his friend Kiran the hour of the train departure and he tells Poornima at which minute it will depart. He also tells both of them that the train leaves between 0800 and 1200. Kiran and Poornima see the train timetable and find the following train timings between those two time: 0833 0844 0851 0918 0947 1020 1033 1118 1120 1151. Kiran then says "I don’t know when Rajesh train leaves but I am sure that Poornima also doesn't know" Poornima responds "I didn’t know his train time earlier, but now i know" Kiran replies "Now I also know the time of the train too!" When is Rajesh train?

Answer»

Given: Rajesh has to TAKE a train to Mumbai . He tells HOUR to one frind and minute to one friend

To find : When is Rajesh train

Solution:

Train Timing

Hrs Minutes

8 33 44 51

9 18 47

10 20 33

11 18 20 51

Kiran knows only hour so she does not know exact training timing

but she is CONFIRMED that Poornima ALSO does not know

this mean hour known to Kiran is not having a unique time like 44 or 47 minute

=> Hour can not be 8 & 9

Poornima earlier did not know that hr can not be 8 & 9 but now

she knows that only hr are 10 & 11

so minute can not be 20

Hence option are 10 : 33 , 11 : 18 & 11 : 51

Now kiran also say that she know the timing => hr is not 11 ( as there are two times)

Hence Train timing is 10:33

Rajesh Train is at 10 :33

Learn more:

SLOVE this puzzle: Steve is taking a bus to Central Park. Steve tells ...

brainly.in/question/16527207

Steve is taking a bus to Central Park. Steve tells Alice the hour of his ...

brainly.in/question/16468851

Puzzle: Steve is taking a bus to the Central Park. Steve tells Alice the ...

brainly.in/question/16550290

Discussion

5.	If X is a normally distributed random variable with mean 14 and standard deviation 2 then P (12 < X < 16) is
Answer» P(12 < X < 16) = 0.84134 - 0.15866 = 0.68268. Step-by-step explanation: We are GIVEN that X is a normally DISTRIBUTED random variable with mean 14 and standard deviation 2. Let X = a random variable So, X ~ Normal( $\mu=14,\sigma^{2} =2^{2}$ ) The z score PROBABILITY distribution for normal distribution is given by; Z = $\frac{X-\mu}{\sigma}$ where, $\mu$ = population mean = 14 $\sigma$ = standard deviation = 2 Now, Probability that the random variable X is between 12 and 16 is given by = P(12 < X < 16) P(12 < X < 16) = P(X < 16) - P(X $\leq$ 12) P(X < 16) = P( $\frac{X-\mu}{\sigma}$ < $\frac{16-14}{2}$ ) = P(Z < 1) = 0.84134 P(X $\leq$ 12) = P( $\frac{X-\mu}{\sigma}$ $\leq$ $\frac{12-14}{2}$ ) = P(Z $\leq$ -1) = 1 - P(Z < 1) = 1 - 0.84134 = 0.15866 The above probability is calculated by looking at the value of x = 1 in the z table which has an area of 0.84134. Therefore, P(12 < X < 16) = 0.84134 - 0.15866 = 0.68268. Learn more about normal distribution questions; https://brainly.com/question/15494018 brainly.in/question/16588240

5.

If X is a normally distributed random variable with mean 14 and standard deviation 2 then P (12 < X < 16) is

Answer»

P(12 < X < 16) = 0.84134 - 0.15866 = 0.68268.

Step-by-step explanation:

We are GIVEN that X is a normally DISTRIBUTED random variable with mean 14 and standard deviation 2.

Let X = a random variable

So, X ~ Normal( $\mu=14,\sigma^{2} =2^{2}$ )

The z score PROBABILITY distribution for normal distribution is given by;

Z = $\frac{X-\mu}{\sigma}$

where, $\mu$ = population mean = 14

$\sigma$ = standard deviation = 2

Now, Probability that the random variable X is between 12 and 16 is given by = P(12 < X < 16)

P(12 < X < 16) = P(X < 16) - P(X $\leq$ 12)

P(X < 16) = P( $\frac{X-\mu}{\sigma}$ < $\frac{16-14}{2}$ ) = P(Z < 1) = 0.84134

P(X $\leq$ 12) = P( $\frac{X-\mu}{\sigma}$ $\leq$ $\frac{12-14}{2}$ ) = P(Z $\leq$ -1) = 1 - P(Z < 1)

= 1 - 0.84134 = 0.15866

The above probability is calculated by looking at the value of x = 1 in the z table which has an area of 0.84134.

Therefore, P(12 < X < 16) = 0.84134 - 0.15866 = 0.68268.

Learn more about normal distribution questions;

https://brainly.com/question/15494018

brainly.in/question/16588240

Discussion

6.	The pair of linear equations 8x – 4y + 7 = 0 and 2x – y – 16 = 0 has:Unique solutionno solutiontwo solutionsinfinitely many solutionsnone
Answer» ANSWER: UNIQUE SOLUTION. this LINEAR EQUATION has a unique numberical solution.

6.

The pair of linear equations 8x – 4y + 7 = 0 and 2x – y – 16 = 0 has:Unique solutionno solutiontwo solutionsinfinitely many solutionsnone

Answer»

ANSWER:

UNIQUE SOLUTION. this LINEAR EQUATION has a unique numberical solution.

Discussion

7.	Divide p(y) = 4y^3 - 2y + 1 by g(y) = y + 2
Answer» HOPE this ANSWER HELPS you.

7.

Divide p(y) = 4y^3 - 2y + 1 by g(y) = y + 2

Answer»

HOPE this ANSWER HELPS you.

Discussion

8.	Frequency distribution divides the data into convenient and small groups called
Answer» Answer: molar concentration is a measure of the concentration of a chemical species in PARTICULAR of a solute in TERMS of amount of substance PER unit volume of SOLUTION

8.

Frequency distribution divides the data into convenient and small groups called

Answer»

Answer:

molar concentration is a measure of the concentration of a chemical species in PARTICULAR of a solute in TERMS of amount of substance PER unit volume of SOLUTION

Discussion

9.	Find the area of trapeZium with the following dimensions:length of parallel sides are 4 cm and 8 cmheight =12cm
Answer» Answer: 72cm^2 Step-by-step explanation: length = 4 CM , BREADTH = 8 cm , height = 12 cm area of trapeizium = l + b / 2 × H = 4 cm + 8 cm / 2 × 12 cm = 12 cm / 2 × 12 cm = 6 cm × 12 cm = 72 cm^2 ans.

9.

Find the area of trapeZium with the following dimensions:length of parallel sides are 4 cm and 8 cmheight =12cm

Answer»

Answer:

72cm^2

Step-by-step explanation:

length = 4 CM , BREADTH = 8 cm , height = 12 cm

area of trapeizium = l + b / 2 × H

= 4 cm + 8 cm / 2 × 12 cm

= 12 cm / 2 × 12 cm

= 6 cm × 12 cm

= 72 cm^2 ans.

Discussion

10.	If the median of the scores 1;2; x ;4 and 5 is 3 than the mean of the scores is
Answer» ANSWER: MEADIAN = 3 (X) MEAN = 1+2+3+4+5/5 = 15/5 = 3

10.

If the median of the scores 1;2; x ;4 and 5 is 3 than the mean of the scores is

Answer»

ANSWER:

MEADIAN = 3 (X)

MEAN = 1+2+3+4+5/5

= 15/5

= 3

Discussion

11.	X-√x=20. find value of √x
Answer» ANSWER: $\sqrt{x} = 4 \: and \: 5$ *HOPE* it *HELPS* uh.... *please* *mark* my *answer* as *brainliest* if it *helps* *you* ❤

11.

X-√x=20. find value of √x

Answer»

ANSWER:

$\sqrt{x} = 4 \: and \: 5$

HOPE it HELPS uh....

please mark my answer as brainliest if it helps you ❤

Discussion

12.	A vertical pole of 5.6 m height casts a shadow 3.2 m long. At the same time find (i) thelength of the shadow cast by another pole 10.5 m high (ii) the height of a pole which casea shadow 5m long
Answer» ANSWER: (i) 6 m (II) 8.75 m Step-by-step explanation: Question (i) Define x: Let x be the length of the shadow Solve x: pole1/pole2 = shadow1/shadow2 5.6/10.5 = 3.2/x 5.6x = 10.5(3.2) 5.6x = 33.6 x = 6 m Answer: The shadow is 6 m long Question (ii): Define x: Let the height of the POLE be x Solve x: USING the property of similar figures pole1/pole2 = shadow1/shadow2 5.6/x = 3.2/5 3.2x = 5.6(5) 3.2x =28 x = 8.75 m

12.

A vertical pole of 5.6 m height casts a shadow 3.2 m long. At the same time find (i) thelength of the shadow cast by another pole 10.5 m high (ii) the height of a pole which casea shadow 5m long

Answer»

ANSWER:

(i) 6 m

(II) 8.75 m

Step-by-step explanation:

Question (i)

Define x:

Let x be the length of the shadow

Solve x:

pole1/pole2 = shadow1/shadow2

5.6/10.5 = 3.2/x

5.6x = 10.5(3.2)

5.6x = 33.6

x = 6 m

Answer: The shadow is 6 m long

Question (ii):

Define x:

Let the height of the POLE be x

Solve x:

USING the property of similar figures

pole1/pole2 = shadow1/shadow2

5.6/x = 3.2/5

3.2x = 5.6(5)

3.2x =28

x = 8.75 m

Discussion

13.	एक आजोबाएक बापएक नातु तिघांचे एकुण वय 140 Years आहे नातु जितक्या महिन्याचा ..आजोबा तितक्या वर्षाचे .. ... ..... ............नातु जितक्या दिवसांचा ..बाप तितक्याच आठवड्याचा तर ...प्रत्येकाच वय सांगा ?
Answer» ...........hzhwjsj $thanks for watching my answer..$ ............

13.

एक आजोबाएक बापएक नातु तिघांचे एकुण वय 140 Years आहे नातु जितक्या महिन्याचा ..आजोबा तितक्या वर्षाचे .. ... ..... ............नातु जितक्या दिवसांचा ..बाप तितक्याच आठवड्याचा तर ...प्रत्येकाच वय सांगा ?

Answer»

...........hzhwjsj

$thanks for watching my answer..$

............

Discussion

14.	In how many forms is indian agriculture diveded on the basis of seasons?
Answer» Answer: THREE TYPES Based on SEASONS, the crops in India are divided into three types; Rabi, KHARIF and Zaid.

14.

In how many forms is indian agriculture diveded on the basis of seasons?

Answer»

Answer:

THREE TYPES

Based on SEASONS, the crops in India are divided into three types; Rabi, KHARIF and Zaid.

Discussion

15.	In a polo course there are horses and humans.The total no. Of legs=178. The total no. of eyes=124.Find no. of humans
Answer» Answer: 35 Step-by-step explanation: 124 EYES = 62 HUMANS + horses humans 2 legs and horses 4 legs 2x + 4Y = 178 x+ y = 62

15.

In a polo course there are horses and humans.The total no. Of legs=178. The total no. of eyes=124.Find no. of humans

Answer»

Answer:

35

Step-by-step explanation:

124 EYES = 62 HUMANS + horses

humans 2 legs and horses 4 legs

2x + 4Y = 178

x+ y = 62

Discussion

16.	List for rational numbers in the standard form 829734000000
Answer» $8.29734 \times {10}^{11}$

16.

List for rational numbers in the standard form 829734000000

Answer»

$8.29734 \times {10}^{11}$

Discussion

17.	15x * 11112=1345637 what is the value of x
Answer» Answer: 15x × 11112 = 1345637 15x = 121.1 ( APPROX. ) X = 8.0733333..... or 8.07 ( approx. ) FOLLOW ME PLZ

17.

15x * 11112=1345637 what is the value of x

Answer»

Answer:

15x × 11112 = 1345637

15x = 121.1 ( APPROX. )

X = 8.0733333..... or 8.07 ( approx. )

FOLLOW ME PLZ

Discussion

18.	Sec teta+tan teta=x,tan teta-sec teta =y,xy=?
Answer» ANSWER: ❣HERE IS YOUR ANSWER MATE❣ Step-by-step explanation: XY = tan teta ❣HOPE IT HELPS U MATE ❣

18.

Sec teta+tan teta=x,tan teta-sec teta =y,xy=?

Answer»

ANSWER:

❣HERE IS YOUR ANSWER MATE❣

Step-by-step explanation:

XY = tan teta

❣HOPE IT HELPS U MATE ❣

Discussion

19.	Write an example of an algebraic expression that is not a polynomial
Answer» ANSWER : There are lots of non POLYNOMIAL EXPRESSION in algebra. Some of EXAMPLE are: x^-3+x^-2+1. Here the power of the variable x is negative, so the above expression is not a polynomial. (1-x^3)/x +3x+5(as, division by a variable is not allowed for a polynomial)

19.

Write an example of an algebraic expression that is not a polynomial

Answer»

ANSWER :

There are lots of non POLYNOMIAL EXPRESSION in algebra. Some of EXAMPLE are: x^-3+x^-2+1. Here the power of the variable x is negative, so the above expression is not a polynomial. (1-x^3)/x +3x+5(as, division by a variable is not allowed for a polynomial)

Discussion

20.	(x square + 3x +2) ( x+2) (x+1) solve them
Answer» x2+3x+2 =x2+2x+x+2 (by splitting the MIDDLE term) =x(x+2)+1(x+2) =(x+2)(x+1)..... is the ANSWER

20.

(x square + 3x +2) ( x+2) (x+1) solve them

Answer»

x2+3x+2

=x2+2x+x+2 (by splitting the MIDDLE term)

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

=(x+2)(x+1)..... is the ANSWER

Discussion

21.	Givereason :Between two rational number thereexist infinite number of rationalnumber.
Answer» Because there are so MANY FRACTIONS and fractions are ALSO RATIONAL NUMBERS

21.

Givereason :Between two rational number thereexist infinite number of rationalnumber.

Answer»

Because there are so MANY FRACTIONS and fractions are ALSO RATIONAL NUMBERS

Discussion

22.	Two angle in a triangle are 47 degree and 73 degree. what is the measure of the third angle
Answer» ANSWER: THE ANGLE SUM PROPERTY STATES THAT FIRST ANGLE + SECOND ANGLE + THIRD ANGLE= 180 DEGREES 47+73+ THIRD ANGLE=180 THIRD ANGLE= 180-47+73 THIRD ANGLE=60 DEGREES HOPE THIS HELPS :D

22.

Two angle in a triangle are 47 degree and 73 degree. what is the measure of the third angle

Answer»

ANSWER: THE ANGLE SUM PROPERTY STATES THAT

FIRST ANGLE + SECOND ANGLE + THIRD ANGLE= 180 DEGREES

47+73+ THIRD ANGLE=180

THIRD ANGLE= 180-47+73

THIRD ANGLE=60 DEGREES

HOPE THIS HELPS :D

Discussion

23.	1/3x+y=4/3;x+2/5y=7/5 find x+y
Answer» Answer: 5/11 Step-by-step explanation: 1/3x+y =4/3 3=4(3x+y) 12x+4y=3............eq.1 and x+2/5y =7/5 x+2=7y.............eq.2 solving these EQUATION, y=27/88 and x=13/88 so, x+y=40/88=5/11

23.

1/3x+y=4/3;x+2/5y=7/5 find x+y

Answer»

Answer:

5/11

Step-by-step explanation:

1/3x+y =4/3

3=4(3x+y)

12x+4y=3............eq.1

and x+2/5y =7/5

x+2=7y.............eq.2

solving these EQUATION,

y=27/88

and x=13/88

so, x+y=40/88=5/11

Discussion

24.	Evaluate (1+tan²60)²
Answer» ANSWER: (1+√3^2)^2 (1+3)^2 4^2 16 is it OK

24.

Evaluate (1+tan²60)²

Answer»

ANSWER:

(1+√3^2)^2

(1+3)^2

4^2

16 is it OK

Discussion

25.	Write the face value of 4 in the numeral 89247605
Answer» Answer: 40000 Step-by-step explanation: 4 is 5TH from RIGHT so multiply it with 10000 Please mark me as the BRAINLIEST boi

25.

Write the face value of 4 in the numeral 89247605

Answer»

Answer:

40000

Step-by-step explanation:

4 is 5TH from RIGHT so multiply it with 10000

Please mark me as the BRAINLIEST boi

Discussion

26.	The product of 2 numbers is 8000.If LCM of two numbers is 800 find HCF
Answer» GiveN : Product of Numbers = 8000 LCM = 800 To FIND : HCF SOLUTION : USE formula for Product of Numbers : $\boxed{\tt{Product \: of \: Numbers \: =\: LCM \: \times \: HCF}} \\ \\ \dashrightarrow \tt{8000 \: = \: 800 \: \times \: HCF} \\ \\ \dashrightarrow \tt{HCF \: = \: \dfrac{8000}{800}} \\ \\ \dashrightarrow \tt{HCF \: = \: 10} \\ \\ \underline{\sf{\therefore \: HCF \: of \: numbers \: is \: 10}}$ $\rule{150}{1}$ Additional INFORMATION The largest or greatest common factor to any two or more NATURAL numbers is called HCF. The least common multiple of any two or more numbers is called as LCM. Product of Numbers = LCM * HCF

26.

The product of 2 numbers is 8000.If LCM of two numbers is 800 find HCF

Answer»

GiveN :

Product of Numbers = 8000
LCM = 800

To FIND :

HCF

SOLUTION :

USE formula for Product of Numbers :

$\boxed{\tt{Product \: of \: Numbers \: =\: LCM \: \times \: HCF}} \\ \\ \dashrightarrow \tt{8000 \: = \: 800 \: \times \: HCF} \\ \\ \dashrightarrow \tt{HCF \: = \: \dfrac{8000}{800}} \\ \\ \dashrightarrow \tt{HCF \: = \: 10} \\ \\ \underline{\sf{\therefore \: HCF \: of \: numbers \: is \: 10}}$

$\rule{150}{1}$

Additional INFORMATION

The largest or greatest common factor to any two or more NATURAL numbers is called HCF.

The least common multiple of any two or more numbers is called as LCM.

Product of Numbers = LCM * HCF

Discussion

27.	6√2/12 is dash number and has dash decimals expansion
Answer» Answer: Step-by-step EXPLANATION: Before going into a representation of the DECIMAL expansion of rational numbers, let us UNDERSTAND what rational numbers are. Any number that can be represented in the form of p/q, such that p and q are integers and q ≠ 0 are known as rational numbers. So when these numbers have been simplified further, they result in decimals. Let us LEARN here how to EXPAND such decimals. Examples: 6,−8.1,45 etc. are all examples of rational numbers.

27.

6√2/12 is dash number and has dash decimals expansion

Answer»

Answer:

Step-by-step EXPLANATION:

Before going into a representation of the DECIMAL expansion of rational numbers, let us UNDERSTAND what rational numbers are. Any number that can be represented in the form of p/q, such that p and q are integers and q ≠ 0 are known as rational numbers. So when these numbers have been simplified further, they result in decimals. Let us LEARN here how to EXPAND such decimals.

Examples: 6,−8.1,45 etc. are all examples of rational numbers.

Discussion

28.	The radius and height of a solid cylinder are increased by 2% each. What will be the approximate percentage increase in volume?A) 6.76 B) 5.88C) 6.12 D) 3.34
Answer» GIVEN : A cylinder with radius 'r' and height 'h' Increase in radius and height = 2% To find : PERCENTAGE increase in volume. Solution : Volume of a cylinder = $\pi r^2h$ Radius of the cylinder after increase of 2% = r + (2% of r) = r + 0.02r = 1.02r Similarly height of the cylinder after increase of 2% = 1.02h New volume = $\pi (1.02r)^2(1.02h)$ = 1.0612(πr²h) increase in volume = 1.0612(πr²h) - πr²h = 0.0612(πr²h) Now percentage increase in volume = $\frac{\text{increase in volume}}{\text{initial volume}} \times 100$ = $\frac{0.0612(\pi r^2h )}{\pi r^2h}\times 100$ = 0.0612 × 100 = 6.12% OPTION C) 6.12 is the answer.

28.

The radius and height of a solid cylinder are increased by 2% each. What will be the approximate percentage increase in volume?A) 6.76 B) 5.88C) 6.12 D) 3.34

Answer»

GIVEN :

A cylinder with radius 'r' and height 'h'

Increase in radius and height = 2%

To find :

PERCENTAGE increase in volume.

Solution :

Volume of a cylinder = $\pi r^2h$

Radius of the cylinder after increase of 2% = r + (2% of r)

= r + 0.02r

= 1.02r

Similarly height of the cylinder after increase of 2% = 1.02h

New volume = $\pi (1.02r)^2(1.02h)$

= 1.0612(πr²h)

increase in volume = 1.0612(πr²h) - πr²h

= 0.0612(πr²h)

Now percentage increase in volume = $\frac{\text{increase in volume}}{\text{initial volume}} \times 100$

= $\frac{0.0612(\pi r^2h )}{\pi r^2h}\times 100$

= 0.0612 × 100

= 6.12%

OPTION C) 6.12 is the answer.

Discussion

29.	Express -3/7as a rational number whose numerator is 12.
Answer» ANSWER: -28 is the answer it,s an EASY QUERY

29.

Express -3/7as a rational number whose numerator is 12.

Answer»

ANSWER:

-28 is the answer it,s an EASY QUERY

Discussion

30.	The weight of 15 students given the weight is 40 42 45 50 and the number of students 3 5 6 1
Answer» ANSWER: fvck off benchod Step-by-step EXPLANATION:

30.

The weight of 15 students given the weight is 40 42 45 50 and the number of students 3 5 6 1

Answer»

ANSWER:

fvck off benchod

Step-by-step EXPLANATION:

Discussion

31.	Find 3 consecutive even numbers such that the sum of the first and the last numbers exceed the second number by 10
Answer» ⠀⠀⠀ ՏϴᏞႮͲᏆϴΝ $\setlength{\unitlength}{1.0 cm}}\begin{picture}(12,<klux>4</klux>)\thicklines\put(1,1){\line(1,0){6.5}}\put(1,1.1){\line(1,0){6.5}}\end{picture}$ Let the three consecutive even numbers be X, X + 2 and X + 4 As per the GIVEN statement X + X + 4 = X + 2 + 10 ➠ 2X + 4 = X + 12 ➠ X = 8 So FIRST NUMBER is 8. Second number = X + 2 = 8 +2 = 10 Third number = X + 4= 8 + 4 = 12 The three consecutive numbers are 8,10 and 12. $\setlength{\unitlength}{1.0 cm}}\begin{picture}(12,4)\thicklines\put(1,1){\line(1,0){6.5}}\put(1,1.1){\line(1,0){6.5}}\end{picture}$

31.

Find 3 consecutive even numbers such that the sum of the first and the last numbers exceed the second number by 10

Answer»

⠀⠀⠀ ՏϴᏞႮͲᏆϴΝ

$\setlength{\unitlength}{1.0 cm}}\begin{picture}(12,<klux>4</klux>)\thicklines\put(1,1){\line(1,0){6.5}}\put(1,1.1){\line(1,0){6.5}}\end{picture}$

Let the three consecutive even numbers be X, X + 2 and X + 4

As per the GIVEN statement

X + X + 4 = X + 2 + 10

➠ 2X + 4 = X + 12

➠ X = 8

So FIRST NUMBER is 8.

Second number = X + 2 = 8 +2 = 10

Third number = X + 4= 8 + 4 = 12

The three consecutive numbers are 8,10 and 12.

$\setlength{\unitlength}{1.0 cm}}\begin{picture}(12,4)\thicklines\put(1,1){\line(1,0){6.5}}\put(1,1.1){\line(1,0){6.5}}\end{picture}$

Discussion

32.	DO YOU THINK A CAT WEIGH 3 PONDS?
Answer» ANSWER: YES or more than that A CAT WEIGH 3 PONDS

32.

DO YOU THINK A CAT WEIGH 3 PONDS?

Answer»

ANSWER:

YES or more than that A CAT WEIGH 3 PONDS

Discussion

33.	Cube root of -474552 with explanations
Answer» Answer: THERE FORE YOUR ANSWER.... Step-by-step explanation: -78 IS THE ANSWER FOR YOUR QUESTION.... THIS MAY HELP YOU BRO.... THIS CAN SOLVE YOUR DOUBT.... PLEASE MARK AS BRAINLIEST.... THANK YOU VERY MUCH....

33.

Cube root of -474552 with explanations

Answer»

Answer:

THERE FORE YOUR ANSWER....

Step-by-step explanation:

-78 IS THE ANSWER FOR YOUR QUESTION....

THIS MAY HELP YOU BRO....

THIS CAN SOLVE YOUR DOUBT....

PLEASE MARK AS BRAINLIEST....

THANK YOU VERY MUCH....

Discussion

34.	119 children get into teams of 4 . How many teams of 4 can they make ? How many children will not be in team of 4 ?
Answer» ANSWER: the children can make 29 groups off four and there will be one more GROUP of children which will have THREE children.

34.

119 children get into teams of 4 . How many teams of 4 can they make ? How many children will not be in team of 4 ?

Answer»

ANSWER:

the children can make 29 groups off four and there will be one more GROUP of children which will have THREE children.

Discussion

35.	Sixty eightcrore six lakh forty five thousand seven in number
Answer» ANSWER:68,06,45,007 Step-by-step EXPLANATION:The answer is 68,06,45,007. Hope it HELPS

35.

Sixty eightcrore six lakh forty five thousand seven in number

Answer»

ANSWER:68,06,45,007

Step-by-step EXPLANATION:The answer is 68,06,45,007.

Hope it HELPS

Discussion

36.	X/y=(-2/3)^3÷(3/5)^-2, find the value of: (x/y)^-2
Answer» Step-by-step explanation: Locate and Label the FOLLOWING items on the given map with appropriate symbols: 1. The soil found in LOW rainfall area 2. The Area where FOREST and Mountain soil found 3. Two areas of LATERITE soil found 4. Two areas of Red and Yellowso87348

36.

X/y=(-2/3)^3÷(3/5)^-2, find the value of: (x/y)^-2

Answer»

Step-by-step explanation:

Locate and Label the FOLLOWING items on the given map with appropriate symbols:

1. The soil found in LOW rainfall area

2. The Area where FOREST and Mountain soil found

3. Two areas of LATERITE soil found

4. Two areas of Red and Yellowso87348

Discussion

37.	Two angles of a quadrilateral measure 15° and 190°. The other two angles are in a ratio of 12:19. What are the measures of those two angles?
Answer» Step-by-step explanation: 31x=165 this is the ANDER

37.

Two angles of a quadrilateral measure 15° and 190°. The other two angles are in a ratio of 12:19. What are the measures of those two angles?

Answer»

Step-by-step explanation:

31x=165 this is the ANDER

Discussion

38.	Anita saves rs 500 from her salary if this 20% of her salary what is her salary
Answer» Answer: 2500 money ANITA saves=500 percentage Anita saves=20% SALARY of Anita=(500/20) × 100=2500

38.

Anita saves rs 500 from her salary if this 20% of her salary what is her salary

Answer»

Answer:

2500

money ANITA saves=500

percentage Anita saves=20%

SALARY of Anita=(500/20) × 100=2500

Discussion

39.	A bottle has 800ml medicine in it. If each one of 275 patients is given 1ml medicine, how much medicine is left in the bottle.
Answer» Step-by-step explanation: 275×1=275 800-275=525

39.

A bottle has 800ml medicine in it. If each one of 275 patients is given 1ml medicine, how much medicine is left in the bottle.

Answer»

Step-by-step explanation:

275×1=275

800-275=525

Discussion

40.	The difference between the place value of two seven occurring in 7879 is
Answer» Answer: GIVEN the place value of 7=7000,70 the DIFFERENCE between 7879&7070=809

40.

The difference between the place value of two seven occurring in 7879 is

Answer»

Answer:

GIVEN

the place value of 7=7000,70

the DIFFERENCE between 7879&7070=809

Discussion

41.	Write a rational number not laying between -1/5 and-2/5
Answer» ANSWER: Step-by-step EXPLANATION: -3/5,-4/5............

41.

Write a rational number not laying between -1/5 and-2/5

Answer»

ANSWER:

Step-by-step EXPLANATION:

-3/5,-4/5............

Discussion

42.	Help on centemeter some
Answer» Step-by-step EXPLANATION: Area=length breadth* 81=length3* 81/3=length 27cm=lenght HOPE IT HELPS :D

42.

Help on centemeter some

Answer»

Step-by-step EXPLANATION: Area=length * breadth

81=length*3

81/3=length

27cm=lenght

HOPE IT HELPS :D

Discussion

43.	find the value of k for which the pair of linear equations 3x+ky+2y=0,6x-8y+7=0 represent the parallel lines
Answer» ANSWER: Step-by-step explanation: 3x+(k+2)y=0.............................[1] 6x-8y+7=0..................................[2] here a1=3 , a2=6 b1=k+2, b2=-8 c1=0 , c2=7 condition for PARALLEL lines a1/a2 is equal to b1/b2 is not equal to c1/c2 a1/a2=3/6=1/2 b1/b2=k+2/-8 c1/c2=0/7=0 by condition 1/2=- k+2/8 -k-2=4 -k=6 k=-6 hope it helps please MARK as BRAINLIEST

43.

find the value of k for which the pair of linear equations 3x+ky+2y=0,6x-8y+7=0 represent the parallel lines

Answer»

ANSWER:

Step-by-step explanation:

3x+(k+2)y=0.............................[1]

6x-8y+7=0..................................[2]

here

a1=3 , a2=6

b1=k+2, b2=-8

c1=0 , c2=7

condition for PARALLEL lines

a1/a2 is equal to b1/b2 is not equal to c1/c2

a1/a2=3/6=1/2

b1/b2=k+2/-8

c1/c2=0/7=0

by condition

1/2=- k+2/8

-k-2=4

-k=6

k=-6

hope it helps

please MARK as BRAINLIEST

Discussion

44.	Radius of a circle is 6 Find its circumference and explain it
Answer» ANSWER: it's CIRCUMFRENCE c=2πr=2.π.r =37.69911 is answer

44.

Radius of a circle is 6 Find its circumference and explain it

Answer»

ANSWER:

it's CIRCUMFRENCE c=2πr=2.π.r =37.69911 is answer

Discussion

45.	If the length and breadth of aroom is 8m and 10m find the costof flooring a room at $75/square m?
Answer» Step-by-step EXPLANATION: length=8m breadth=10 area=lxb =8x10 area=80 then FLOORING cost=75$x80 =6000$

45.

If the length and breadth of aroom is 8m and 10m find the costof flooring a room at $75/square m?

Answer»

Step-by-step EXPLANATION:

length=8m

breadth=10

area=lxb

=8x10

area=80

then FLOORING cost=75$x80

=6000$

Discussion

46.	Verify whether 13720 is a perfect cube
Answer» Answer: no Step-by-step explanation: 13720= 1+3+7+2+0=13 13=1+3= 4 this means the digital SUM of given NUMBER= 4 Rule:- digital sum of a PERFECT cube number should be 1, 8 or 9 therefore this is a NON perfect cube number.

46.

Verify whether 13720 is a perfect cube

Answer»

Answer:

no

Step-by-step explanation:

13720= 1+3+7+2+0=13

13=1+3= 4

this means the digital SUM of given NUMBER= 4

Rule:- digital sum of a PERFECT cube number

should be 1, 8 or 9

therefore this is a NON perfect cube number.

Discussion

47.	If α, β are zeroes of x2+7x+7, find the value of 1/α + 1/β - 2 αβ.
Answer» ANSWER: The value of above expression = (-15) GIVEN: α, β are ZEROES of x²+7x+7. TO FIND: $\frac{1}{ \alpha} + \frac{1}{ \beta} - 2 \alpha \beta$ SOLUTION p(X) = x²+7x+7 $\implies \: \alpha + \beta = \frac{ - (coefficient \: of \: x)}{coefficient \: of \: x {}^{2} } \\ \implies \: \alpha + \beta = \frac{ - 7}{1} \\ \\ \implies \: \alpha \beta = \frac{(constant \: term)}{coefficient \: of \: x {}^{2} } \\ \implies \alpha \beta \: = \frac{7}{1}$ Now putting the VALUES in the above expression. $= (\frac{1}{ \alpha} + \frac{1}{ \beta}) - 2 \alpha \beta \\ = ( \frac{\alpha + \beta}{\alpha \beta} ) - 2\alpha \beta \\ = ( \frac{ - 7}{7} ) - (2 \times 7) \\ = - 1 - 14 \\ = - 15$ So the value of above expression = (-15) NOTE: *some* *IMPORTANT* *formulas* $\implies \: \alpha + \beta = \frac{ - (coefficient \: of \: x)}{coefficient \: of \: x {}^{2} } \\ \\ \implies \: \alpha \beta = \frac{(constant \: term)}{coefficient \: of \: x {}^{2} }$

47.

If α, β are zeroes of x2+7x+7, find the value of 1/α + 1/β - 2 αβ.

Answer»

ANSWER:

The value of above expression = (-15)

GIVEN:

α, β are ZEROES of x²+7x+7.

TO FIND:

$\frac{1}{ \alpha} + \frac{1}{ \beta} - 2 \alpha \beta$

SOLUTION

p(X) = x²+7x+7

$\implies \: \alpha + \beta = \frac{ - (coefficient \: of \: x)}{coefficient \: of \: x {}^{2} } \\ \implies \: \alpha + \beta = \frac{ - 7}{1} \\ \\ \implies \: \alpha \beta = \frac{(constant \: term)}{coefficient \: of \: x {}^{2} } \\ \implies \alpha \beta \: = \frac{7}{1}$

Now putting the VALUES in the above expression.

$= (\frac{1}{ \alpha} + \frac{1}{ \beta}) - 2 \alpha \beta \\ = ( \frac{\alpha + \beta}{\alpha \beta} ) - 2\alpha \beta \\ = ( \frac{ - 7}{7} ) - (2 \times 7) \\ = - 1 - 14 \\ = - 15$

So the value of above expression = (-15)

NOTE:

some IMPORTANT formulas

$\implies \: \alpha + \beta = \frac{ - (coefficient \: of \: x)}{coefficient \: of \: x {}^{2} } \\ \\ \implies \: \alpha \beta = \frac{(constant \: term)}{coefficient \: of \: x {}^{2} }$

Discussion

48.	Add. 7×y + 5yz- 3z× , 4yz + 9z×-4y-,3×z +5×-2×..
Answer» Answer: 7XY+5yz- 3ZX, 4yz+ 9zx- 4y-, 3xz+5x- 2X.. = 7xy+ 9yz+ 3zx- 4y + 3x

48.

Add. 7×y + 5yz- 3z× , 4yz + 9z×-4y-,3×z +5×-2×..

Answer»

Answer:

7XY+5yz- 3ZX, 4yz+ 9zx- 4y-, 3xz+5x- 2X.. = 7xy+ 9yz+ 3zx- 4y + 3x

Discussion

49.	13. Ashok sells his goods 50% dearer than Shankar and20% dearer than Bishnu. How much percentage isBishnu's goods dearer than Shankar's?(a) 33.33%(b) 25%(C) 66.66%(d) 40%
Answer» Given : Ashok SELLS his goods 50% dearer than Shankar and 20% dearer than Bishnu. To find : How much percentage is Bishnu's goods dearer than Shankar's Solution: Let say Shankar GOOD Price = S & Bishnu good Price = B Ashok sells his goods 50% dearer than Shankar = S + (50/100)S = 1.5S Ashok sells his goods 20% dearer than Bishnu = B + (20/100)B = 1.2B => 1.2B = 1.5S => B = 1.25S B - S = 0.25S = (0.25S/S) * 100 = 25 % Bishnu's goods dearer than Shankar's by 25 % OPTION b is correct Learn More: find cp when sp =630 and PROFIT% =5 - Brainly.in brainly.in/question/7596437 Find SP (a) CP=950, gain% =6% (b)CP =9600, gain% =16% brainly.in/question/7786577 Formula to find cp when sp and profit percent is given - Brainly.in brainly.in/question/7341775

49.

13. Ashok sells his goods 50% dearer than Shankar and20% dearer than Bishnu. How much percentage isBishnu's goods dearer than Shankar's?(a) 33.33%(b) 25%(C) 66.66%(d) 40%

Answer»

Given : Ashok SELLS his goods 50% dearer than Shankar and 20% dearer than Bishnu.

To find : How much percentage is Bishnu's goods dearer than Shankar's

Solution:

Let say Shankar GOOD Price = S

& Bishnu good Price = B

Ashok sells his goods 50% dearer than Shankar = S + (50/100)S = 1.5S

Ashok sells his goods 20% dearer than Bishnu = B + (20/100)B = 1.2B

=> 1.2B = 1.5S

=> B = 1.25S

B - S = 0.25S

= (0.25S/S) * 100 = 25 %

Bishnu's goods dearer than Shankar's by 25 %

OPTION b is correct

Learn More:

find cp when sp =630 and PROFIT% =5 - Brainly.in

brainly.in/question/7596437

Find SP (a) CP=950, gain% =6% (b)CP =9600, gain% =16%

brainly.in/question/7786577

Formula to find cp when sp and profit percent is given - Brainly.in

brainly.in/question/7341775

Discussion

50.	Find all the zeroes of thepolynomialif two of its zeroes are 0 and -2
Answer» <P> $\huge\boxed{\fcolorbox{blue}{orange}{HELLO\:MATE}}$ GIVEN: → ${x}^{<klux>3</klux>} + 3 {x}^{<klux>2</klux>} - 2x - 6$ →Two of it's zeroes are 0 and -2. TO FIND: →All zeroes of the polynomial. ANSWER: Let p(x) = ${x}^{3} + 3 {x}^{2} - 2x - 6$ ______________________________________ We would find it's zeroes by the METHOD of FACTORISATION and then equating it with 0. ______________________________________ Let p(x) = 0. => ${x}^{3} + 3 {x}^{2} - 2x - 6=0$ => $x^{2}(x+3) -2(x+3) =0$ => $(x^{2}-2) (x+3) =0$ => ${[(x^{2})-(\sqrt{2}) ^{2}]} (x+3) =0$ $\large\green{\boxed{a^{2}-b^{2}=(a+b) (a-b) }}$ => $(x+\sqrt{2}) (x-\sqrt{2}) (x+3) =0$ => $x = -3, \sqrt{2}, -\sqrt{2}$ Hence the zeroes are -3, -√2, √2. $\huge\orange{\boxed{Answer:-3, \sqrt{2}, -\sqrt{2}}}$

50.

Find all the zeroes of thepolynomialif two of its zeroes are 0 and -2

Answer»

<P> $\huge\boxed{\fcolorbox{blue}{orange}{HELLO\:MATE}}$

GIVEN:

→ ${x}^{<klux>3</klux>} + 3 {x}^{<klux>2</klux>} - 2x - 6$

→Two of it's zeroes are 0 and -2.

TO FIND:

→All zeroes of the polynomial.

ANSWER:

Let p(x) = ${x}^{3} + 3 {x}^{2} - 2x - 6$

______________________________________

We would find it's zeroes by the METHOD of FACTORISATION and then equating it with 0.

______________________________________

Let p(x) = 0.

=> ${x}^{3} + 3 {x}^{2} - 2x - 6=0$

=> $x^{2}(x+3) -2(x+3) =0$

=> $(x^{2}-2) (x+3) =0$

=> ${[(x^{2})-(\sqrt{2}) ^{2}]} (x+3) =0$

$\large\green{\boxed{a^{2}-b^{2}=(a+b) (a-b) }}$

=> $(x+\sqrt{2}) (x-\sqrt{2}) (x+3) =0$

=> $x = -3, \sqrt{2}, -\sqrt{2}$

Hence the zeroes are -3, -√2, √2.

$\huge\orange{\boxed{Answer:-3, \sqrt{2}, -\sqrt{2}}}$

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