332354 + Interview Questions in Secondary School in Math

1.	What are the factor of 26.
Answer» ANSWER: $\huge\underline\mathfrak\pink{Answer}$ Step-by-step EXPLANATION: The factors of 26 are 1,2,13,26 The prime factors of 26 are 2 and 13.

1.

What are the factor of 26.

Answer»

ANSWER:

$\huge\underline\mathfrak\pink{Answer}$

Step-by-step EXPLANATION:

The factors of 26 are 1,2,13,26 The prime factors of 26 are 2 and 13.

Discussion

2.	Hello, What are you doing now?
Answer» ANSWER: CUBE root of 2500 Step-by-step EXPLANATION: i am answering your QUESTIONS

2.

Hello, What are you doing now?

Answer»

ANSWER:

CUBE root of 2500

Step-by-step EXPLANATION:

i am answering your QUESTIONS

Discussion

3.	1. The number of trees were planted equally in 9 different parks is 7,623.How many trees would be planted in 1 park?2. If Aliya's annual school fee is 11,580, what will be her monthly fee?Exercise 5.6Solve the following word problems.3. The parking facility at a metro station in Delhi can accommodate up to5.000 vehicles at a time. If the parking structure is 8 levels, how manyvehicles can be parked on each level?4. 7,635 stickers were distributed equally in 16 different schools. How manystickers did each school get? Were there any stickers left over?5. On the Independence Day, 6,289 people weredivided in 20 different groups. There were equalnumber of people in each group. How manypeople were there in each group? How manypeople were left out?6. A jug contains 4,341 mL of juice which is poured equally into 11 glasses. Howmany mL of juice does each glass contain? How many mL of juice remains inthe jug?Estimating the QuotientYou have learnt how to round off numbers. By rounding offtimoml
Answer» Answer: 1.no.of TREES in one PARK is = 7623/9=847 2.her monthly FEES =11580/12=965 3.no.of vehicles that would be PARKED in each level= 5000/8=625 4.each school would get=7635/16=477 there would be 3 sticker left 5.no.of people in each grp=314 no.of students left =9

3.

1. The number of trees were planted equally in 9 different parks is 7,623.How many trees would be planted in 1 park?2. If Aliya's annual school fee is 11,580, what will be her monthly fee?Exercise 5.6Solve the following word problems.3. The parking facility at a metro station in Delhi can accommodate up to5.000 vehicles at a time. If the parking structure is 8 levels, how manyvehicles can be parked on each level?4. 7,635 stickers were distributed equally in 16 different schools. How manystickers did each school get? Were there any stickers left over?5. On the Independence Day, 6,289 people weredivided in 20 different groups. There were equalnumber of people in each group. How manypeople were there in each group? How manypeople were left out?6. A jug contains 4,341 mL of juice which is poured equally into 11 glasses. Howmany mL of juice does each glass contain? How many mL of juice remains inthe jug?Estimating the QuotientYou have learnt how to round off numbers. By rounding offtimoml

Answer»

Answer:

1.no.of TREES in one PARK is = 7623/9=847

2.her monthly FEES =11580/12=965

3.no.of vehicles that would be PARKED in each level= 5000/8=625

4.each school would get=7635/16=477

there would be 3 sticker left

5.no.of people in each grp=314

no.of students left =9

Discussion

4.	Write the opposite of the following numbers -8
Answer» +8 *please* *MARK* me as a *BRAINLEIST* *and* *FOLLOW* me.....

4.

Write the opposite of the following numbers -8

Answer»

+8

please MARK me as a BRAINLEIST and FOLLOW me.....

Discussion

5.	On a rainy day 94% students are present and 174 are absent find total number of students
Answer» Answer: Do 94/100 × 174 so u will GET the answer pls FOLLOW me and maeks as brailienst i always marks as brailienst who GIVES my answer

5.

On a rainy day 94% students are present and 174 are absent find total number of students

Answer»

Answer:

Do

94/100 × 174

so u will GET the answer

pls FOLLOW me and maeks as brailienst

i always marks as brailienst who GIVES my answer

Discussion

6.	999×399 find the answer by using distributive property
Answer» Answer: 3 * 133 + 3*333 3(133 + 333) 3(466) 1398

6.

999×399 find the answer by using distributive property

Answer»

Answer:

3 * 133 + 3*333

3(133 + 333)

3(466)

1398

Discussion

7.	Which of the following is an example of an irrational number between 6 and 7
Answer» Answer: PLEASE mark me as brilliant Step-by-step explanation: Related QUESTIONS (More Answers Below). How do you FIND an irrational number between √7 & √5? 310 Views ... Now as here 6*7=42 is not a PERFECT squre , is an irrational number.

7.

Which of the following is an example of an irrational number between 6 and 7

Answer»

Answer:

PLEASE mark me as brilliant

Step-by-step explanation:

Related QUESTIONS (More Answers Below). How do you FIND an irrational number between √7 & √5? 310 Views ... Now as here 6*7=42 is not a PERFECT squre , is an irrational number.

Discussion

8.	Find the donain and range of the function f(x) given by f(x) = 3/2-x^2
Answer» Answer: , Step-by-step EXPLANATION: PLEASE MARK as BRILLIANT ans

8.

Find the donain and range of the function f(x) given by f(x) = 3/2-x^2

Answer»

Answer:

,

Step-by-step EXPLANATION:

PLEASE MARK as BRILLIANT ans

Discussion

9.	Which is more in no. The multiple of 11 Between 35 and 80 Or the no. Of multiple 6 between 7 and 37
Answer» Multiple of 11 between 35& 80 are 4 Multiple of 6 between 6& 37 are 5 So multiple of 6 are more

Discussion

10.	Amulet the following (-6)+5) divide (-2)+1)
Answer» Step-by-step EXPLANATION: -1/-1 ANSWER is 1......

10.

Amulet the following (-6)+5) divide (-2)+1)

Answer»

Step-by-step EXPLANATION:

-1/-1

ANSWER is 1......

Discussion

11.	The succusor of a two digit numer is always a
Answer» no the SUCCESSOR of a TWO DIGIT NUMBER can not be ALWAYS a.

11.

The succusor of a two digit numer is always a

Answer»

no the SUCCESSOR of a TWO DIGIT NUMBER can not be ALWAYS a.

Discussion

12.	Each employee of a workshop is paid ₹5862 per month find the total salary paid by the workshop manager per month to 92 workers.
Answer» ANSWER: 5862÷92=63.717 OK this is RIGHT answer

12.

Each employee of a workshop is paid ₹5862 per month find the total salary paid by the workshop manager per month to 92 workers.

Answer»

ANSWER:

5862÷92=63.717 OK this is RIGHT answer

Discussion

13.	7 - 2x= 5 and 1 20-10 1
Answer» Answer: 666777888999 Step-by-step EXPLANATION:

13.

7 - 2x= 5 and 1 20-10 1

Answer»

Answer:

666777888999

Step-by-step EXPLANATION:

Discussion

14.	Make an equivalent fraction of 2/7
Answer» Answer: 2/7===4/14 Step-by-step EXPLANATION:

14.

Make an equivalent fraction of 2/7

Answer»

Answer:

2/7===4/14

Step-by-step EXPLANATION:

Discussion

15.	If aliyahs annual school fee is 11,580, what will be her monthly fees?
Answer» Answer: 1234567890 Step-by-step EXPLANATION:

15.

If aliyahs annual school fee is 11,580, what will be her monthly fees?

Answer»

Answer:

1234567890

Step-by-step EXPLANATION:

Discussion

16.	Express the following ratios in the simplest form 10liter to 0.25liter
Answer» Answer: 40:1 Step-by-step explanation: 10/0.25 = 1000/25 = 40/1 = 40:1

16.

Express the following ratios in the simplest form 10liter to 0.25liter

Answer»

Answer:

40:1

Step-by-step explanation:

10/0.25 = 1000/25 = 40/1 = 40:1

Discussion

17.	2. Age of Nandu is 10 years more than that of Anu .Age of Manu is 3 years more than twicethe age of Nandu . The sum of their ages is 53 . Find the their ages ?(Hint: Take the age of Nandu as x)
Answer» ANSWER: Nandu = 10+ ANU i) Manu = 3+2 X Nandu substitute EQUATION i) Manu = 3 + 2 (10 + Anu) Anu + Nandu+ Manu = 53 = Anu + 10 +Anu +3 + 2 (10 + Anu) = 53 Anu + 10 + Anu +3 + 20 + 2 Anu = 53 4Anu =23 = 53 4Anu = 20 Anu = 5 years old Nandu= 15 years old Manu = 33 years old

17.

2. Age of Nandu is 10 years more than that of Anu .Age of Manu is 3 years more than twicethe age of Nandu . The sum of their ages is 53 . Find the their ages ?(Hint: Take the age of Nandu as x)

Answer»

ANSWER:

Nandu = 10+ ANU i)

Manu = 3+2 X Nandu

substitute EQUATION i)

Manu = 3 + 2 (10 + Anu)

Anu + Nandu+ Manu = 53

= Anu + 10 +Anu +3 + 2 (10 + Anu) = 53

Anu + 10 + Anu +3 + 20 + 2 Anu = 53

4Anu =23 = 53

4Anu = 20

Anu = 5 years old

Nandu= 15 years old

Manu = 33 years old

Discussion

18.	If z= -1 - i2, then Real and Imaginary parts of z are *A)Re (z) = 2, Im (z)= -1B)Re (z) = -2, Im (z) = -2C)Re (z) = 2, Im (z) = -2D)Re (z) = -2, Im (z) = 2
Answer» ANSWER: ur options are incorrect z=-1-i2 we KNOW that real part of the number is the number which can be rational or irrational. $\implies$ here we can see that -1 is real $\implies$ and -2i is imaginary so Re (z) = -1 Im (z) = -2 hope it helps

18.

If z= -1 - i2, then Real and Imaginary parts of z are *A)Re (z) = 2, Im (z)= -1B)Re (z) = -2, Im (z) = -2C)Re (z) = 2, Im (z) = -2D)Re (z) = -2, Im (z) = 2

Answer»

ANSWER:

ur options are incorrect

z=-1-i2

we KNOW that real part of the number is the number which can be rational or irrational.

$\implies$ here we can see that -1 is real

$\implies$ and -2i is imaginary

so

Re (z) = -1

Im (z) = -2

hope it helps

Discussion

19.	If the productoftwowholenumbersis0 ,can we say that one or both of them will be zero?Justify through examples
Answer» ANSWER: up GIVEN Step-by-step explanation: please MARK me as BRAINLIEST

19.

If the productoftwowholenumbersis0 ,can we say that one or both of them will be zero?Justify through examples

Answer»

ANSWER:

up GIVEN

Step-by-step explanation:

please MARK me as BRAINLIEST

Discussion

20.	Find all zeroes of f(x) =x^2-2x+1
Answer» $\huge\underline{★Answer:-}$ Given :- The polynomial is x² -2x + 1 To find:- The zeroes of the polynomial Solution:- ⇒ f ( x ) = x² -2x + 1 ⇒f(x) = 0 ⇒x² -2x +1 = 0 Now , by doing Middle term Factorisation, ⇒x² - ( 1 + 1 ) x + 1 = 0 ⇒x² - x -x + 1 = 0 ⇒x ( x - 1 ) - 1 ( x - 1 ) = 0 ⇒( x - 1 ) ( x - 1 ) = 0 Either ... ⇒( x - 1) = 0 ⇒x = 1 or ... ⇒( x - 1) = 0 ⇒x = 1 Therefore, The zeroes are 1 , 1 As , it has two zeroes that means it is a quadratic polynomial. Also the degree of the polynomial is 2 Now, Things To Know:- The standard form of a QUADRATIC polynomial is ax² + BX + c = 0 ( where a ≠ 0 ) and ( a and b are real NUMBERS ) A polynomial having highest power of "x" variable will be the degree of it . The degree of a polynomial alaways represent the number of zeroes of the polynomial . Here are some of the examples of quadratic polynomial - x² + 3x -10 =0 x² + 7x + 12 = 0 x² -2x -8 =0 2x² -x -6 =0 5x² -4 -8x = 0 you can find out the zeroes of it in the same way as i have done in the above solution .

20.

Find all zeroes of f(x) =x^2-2x+1

Answer»

$\huge\underline{★Answer:-}$

Given :-

The polynomial is x² -2x + 1

To find:-

The zeroes of the polynomial

Solution:-

⇒ f ( x ) = x² -2x + 1

⇒f(x) = 0

⇒x² -2x +1 = 0

Now , by doing Middle term Factorisation,

⇒x² - ( 1 + 1 ) x + 1 = 0

⇒x² - x -x + 1 = 0

⇒x ( x - 1 ) - 1 ( x - 1 ) = 0

⇒( x - 1 ) ( x - 1 ) = 0

Either ...

⇒( x - 1) = 0

⇒x = 1

or ...

⇒( x - 1) = 0

⇒x = 1

Therefore, The zeroes are 1 , 1

As , it has two zeroes that means it is a quadratic polynomial.

Also the degree of the polynomial is 2

Now,

Things To Know:-

The standard form of a QUADRATIC polynomial is ax² + BX + c = 0 ( where a ≠ 0 ) and ( a and b are real NUMBERS )

A polynomial having highest power of "x" variable will be the degree of it .

The degree of a polynomial alaways represent the number of zeroes of the polynomial .

Here are some of the examples of quadratic polynomial -

x² + 3x -10 =0

x² + 7x + 12 = 0

x² -2x -8 =0

2x² -x -6 =0

5x² -4 -8x = 0

you can find out the zeroes of it in the same way as i have done in the above solution .

Discussion

21.	How many numbers between 102 and 211
Answer» Answer: 109 NUMBERS between 102 and 211

21.

How many numbers between 102 and 211

Answer»

Answer:

109 NUMBERS between 102 and 211

Discussion

22.	Show with the help of 2 examples that the sum of 2 negative integers is negative
Answer» Step-by-step EXPLANATION: let TAKE -5 and -7 as two NEGATIVE NUMBER sum of two negative number:- -5+(-7) = -12 hence the some of two negative number is negative

22.

Show with the help of 2 examples that the sum of 2 negative integers is negative

Answer»

Step-by-step EXPLANATION:

let TAKE -5 and -7 as two NEGATIVE NUMBER

sum of two negative number:-

-5+(-7) = -12

hence the some of two negative number is negative

Discussion

23.	Find the total surface area and lateral surface area of cube each of whose edges measures 20 cm
Answer» Step-by-step EXPLANATION: the TOTAL SURFACE area=6a² =6×20cm×20cm =2400 cm² the lteral surface of CUBE =4a² =4×20cm×20cm =1600cm²

23.

Find the total surface area and lateral surface area of cube each of whose edges measures 20 cm

Answer»

Step-by-step EXPLANATION:

the TOTAL SURFACE area=6a²

=6×20cm×20cm

=2400 cm²

the lteral surface of CUBE =4a²

=4×20cm×20cm

=1600cm²

Discussion

24.	If p(x) = x3 – 2x +2, then p(-3) = _____________________
Answer» Answer: p(-3) = - 19 Step-by-step explanation: GIVEN, p(x) = x3 – 2X +2 or, p(-3) = (-3)³ - 2(-3) + 2 or, p(-3) = -27 + 6 + 2 ∴ p(-3) = - 19

24.

If p(x) = x3 – 2x +2, then p(-3) = _____________________

Answer»

Answer:

p(-3) = - 19

Step-by-step explanation:

GIVEN,

p(x) = x3 – 2X +2

or, p(-3) = (-3)³ - 2(-3) + 2

or, p(-3) = -27 + 6 + 2

∴ p(-3) = - 19

Discussion

25.	Third model activity task of class 4
Answer» MEANS NAHI samjha. shayad YE HAI- AEROPLANE

25.

Third model activity task of class 4

Answer»

MEANS NAHI samjha.

shayad YE HAI- AEROPLANE

Discussion

26.	Two number are in the ratio 1:2 ,If 7 is added to both , the new numbers are in the ratio3:5, the GREATEST NUMBER IS
Answer» $Ánsweŕ :$ Given : Two NUMBERS are in ratio. 7 is added to both = 3 : 5. Find : Greatest number. According to the question : Let the numbers be ' a ' and ' b ' Ratio = 1 : 2 a / b = 1 / 2 ☞ 2a = b ........ ( 1 st equation ) 7 is added to both = 3 : 5 ( a + 7 ) / ( b + 7 ) = 3 / 5 ☞ 5 ( a + 7 ) = 3 ( b + 7 ) ☞ 5a + 35 = 3B + 21 ☞ 5a - 3b = 21 - 35 ☞ 5a - 3b = -14 ......... ( 2 nd equation ) Substituting ' b ' value in 1 st equation : 2a = y. ☞ 5a - 3 ( 2a ) = -14 ☞ 5a - 6a = -14 ☞ a = 14. substituting ' x ' value in 1 st equation : 2a = b ☞ 2 × 14 ☞ 28. Therefore the numbers are 14 and 28. Greatest number = 28.

26.

Two number are in the ratio 1:2 ,If 7 is added to both , the new numbers are in the ratio3:5, the GREATEST NUMBER IS

Answer»

$Ánsweŕ :$

Given :

Two NUMBERS are in ratio.

7 is added to both = 3 : 5.

Find :

Greatest number.

According to the question :

Let the numbers be ' a ' and ' b '

Ratio = 1 : 2

a / b = 1 / 2

☞ 2a = b ........ ( 1 st equation )

7 is added to both = 3 : 5

( a + 7 ) / ( b + 7 ) = 3 / 5

☞ 5 ( a + 7 ) = 3 ( b + 7 )

☞ 5a + 35 = 3B + 21

☞ 5a - 3b = 21 - 35

☞ 5a - 3b = -14 ......... ( 2 nd equation )

Substituting ' b ' value in 1 st equation :

2a = y.

☞ 5a - 3 ( 2a ) = -14

☞ 5a - 6a = -14

☞ a = 14.

substituting ' x ' value in 1 st equation :

2a = b

☞ 2 × 14

☞ 28.

Therefore the numbers are

14 and 28.

Greatest number = 28.

Discussion

27.	The vertices of a triangle are (2,3), (5,6) and (3,5), then find the centroid of the triangle.
Answer» Step-by-step EXPLANATION: SIN35 sin55-cos35 cos55=0

27.

The vertices of a triangle are (2,3), (5,6) and (3,5), then find the centroid of the triangle.

Answer»

Step-by-step EXPLANATION:

SIN35 sin55-cos35 cos55=0

Discussion

28.	The mean age of 5 children of a family is 12 years. If four of them are respectively 6, 11, 13 and 16years, find the age of the sixth child.
Answer» $Answer :$ Let the 5 th child's age be ' a ' According to the question : Age of 4 children + Age of 5 th / TOTAL number of children = 12 / 1 ☞ 6 + 11 + 13 + 16 + a / 5 = 12 / 1 ☞ 46 + a = 60 ☞ a = 60 - 46 ☞ a = 14. Therefore the age of 5 th child is 14.

28.

The mean age of 5 children of a family is 12 years. If four of them are respectively 6, 11, 13 and 16years, find the age of the sixth child.

Answer»

$Answer :$

Let the 5 th child's age be ' a '

According to the question :

Age of 4 children + Age of 5 th / TOTAL number of children = 12 / 1

☞ 6 + 11 + 13 + 16 + a / 5 = 12 / 1

☞ 46 + a = 60

☞ a = 60 - 46

☞ a = 14.

Therefore the age of 5 th

child is 14.

Discussion

29.	When a die is thrown list the outcomes of an event of getting
Answer» POSSIBLE OUTCOMES are (Head.Tail) (Tail.Head) (Head.Head) (Tail.Tail) HOPE this HELPS U.....

Discussion

30.	(Root 2-2) whole square is irrational prove it
Answer» this is the RIGHT ANSWER of the GIVEN QUESTION

30.

(Root 2-2) whole square is irrational prove it

Answer»

this is the RIGHT ANSWER of the GIVEN QUESTION

Discussion

31.	A point whose coordinate are (0,-9)will lie in.....
Answer» ANSWER: FOURTH QUADRANT... Step-by-step EXPLANATION:

31.

A point whose coordinate are (0,-9)will lie in.....

Answer»

ANSWER:

FOURTH QUADRANT...

Step-by-step EXPLANATION:

Discussion

32.	!?!?!?!?!With Explanation!
Answer» ANSWER: the answer MAY be it please DEFINE what is there between the TWO numbers it is not clean to be seen properly

32.

!?!?!?!?!With Explanation!

Answer»

ANSWER:

the answer MAY be it

please DEFINE what is there between the TWO numbers it is not clean to be seen properly

Discussion

33.	. If p and q are rational numbers and √ 5+2√3/7+4√3= p -q√3 , find the values of p and q.
Answer» ANSWER: q=-30/7, p=5 Step-by-step EXPLANATION: -(-2/7-4) write LIKE this to find q

33.

. If p and q are rational numbers and √ 5+2√3/7+4√3= p -q√3 , find the values of p and q.

Answer»

ANSWER:

q=-30/7, p=5

Step-by-step EXPLANATION:

-(-2/7-4) write LIKE this to find q

Discussion

34.	Your age is 12 years now . What will be ur age after p years
Answer» Answer: 12+p Step-by-step EXPLANATION: SINCE a variable year is USED sheet 12 years. the correct age WOULD be 12+p

34.

Your age is 12 years now . What will be ur age after p years

Answer»

Answer:

12+p

Step-by-step EXPLANATION:

SINCE a variable year is USED sheet 12 years. the correct age WOULD be 12+p

Discussion

35.	Concert the following suggested 2625 cg into dag and cg
Answer» ANSWER: dil5yzkrfkxhrayk6ak3a53i75el6w4l5s721368jfxgj.ddil5yzkrfkxhrayk6ak3a53i75el6w4l5s721368jfxgj.dfmhzcwdsxedxdesxsexddffgzfhdjtfhkgcmydkuglgj. N,joopug8y 8y0iyb bfeang.z

35.

Concert the following suggested 2625 cg into dag and cg

Answer»

ANSWER:

dil5yzkrfkxhrayk6ak3a53i75el6w4l5s721368jfxgj.ddil5yzkrfkxhrayk6ak3a53i75el6w4l5s721368jfxgj.dfmhzcwdsxedxdesxsexddffgzfhdjtfhkgcmydkuglgj. N,joopug8y

8y0iyb bfeang.z

Discussion

36.	X + 8 = 16 - x find the value of x
Answer» ANSWER: x+8=16-x 2x=8 x=4 ...........

36.

X + 8 = 16 - x find the value of x

Answer»

ANSWER:

x+8=16-x

2x=8

x=4

...........

Discussion

37.	The lateral surface area of a hollow cylinder is 504 cm square . it is cut along its height and formed a rectangular sheet of width 14 cm . Find the perimeter of the rectangular sheet
Answer» SORRY I didn't UNDERSTAND your QUESTION

Discussion

38.	In the adjoining parallelogram ABCD, ZDAO = 35°,ZOAB = 25° and ZDOC = 75° Calculate ZABO, ZODC,ZACB and CBD.
Answer» Answer: figure is IMPORTANT for this can u attach that and ASK i will answer it SURELY

38.

In the adjoining parallelogram ABCD, ZDAO = 35°,ZOAB = 25° and ZDOC = 75° Calculate ZABO, ZODC,ZACB and CBD.

Answer»

Answer:

figure is IMPORTANT for this can u attach that and ASK i will answer it SURELY

Discussion

39.	K. 113 x 12 + 113 x 8
Answer» ANSWER: = 2260 Step-by-step EXPLANATION: = 113× 12 + 113×8 = 1356 + 904 = 2260

39.

K. 113 x 12 + 113 x 8

Answer»

ANSWER:

= 2260

Step-by-step EXPLANATION:

= 113× 12 + 113×8

= 1356 + 904

= 2260

Discussion

40.	144. Simplify:5n12(64) 6 (27)66261(12)-1/2
Answer» ANSWER: what is your QUESTION mate Step-by-step EXPLANATION: PLS be CLEAR

40.

144. Simplify:5n12(64) 6 (27)66261(12)-1/2

Answer»

ANSWER:

what is your QUESTION mate

Step-by-step EXPLANATION:

PLS be CLEAR

Discussion

41.	For what value of k, do the equations 2x – 3y + 10 = 0 and 3x + ky + 15 = 0 represent coincident lines
Answer» Answer: Step-by-step explanation: Coincident means, the two lines lie on TOP of each other. So NATURALLY they both have the same slope. y = mx+c has m as slope So, 3y = 2x+10 has slope => y = 2/3x + 10/3 -->(1) slope = 2/3 Then for second LINE ky = -3x -15, the only way we can make this line have a slope 2/3 is multiply by -2/9 on both sides => -2/9 k y = 2/3 x +10/3 ---> (2) Now if we compare (1) and (2) we see that RHS is equal for both therefore LHS will also be equal So, -2/9 ky = 1*y or k = -9/2

41.

For what value of k, do the equations 2x – 3y + 10 = 0 and 3x + ky + 15 = 0 represent coincident lines

Answer»

Answer:

Step-by-step explanation:

Coincident means, the two lines lie on TOP of each other.

So NATURALLY they both have the same slope.

y = mx+c has m as slope

So, 3y = 2x+10 has slope => y = 2/3*x + 10/3 -->(1)

slope = 2/3

Then for second LINE

ky = -3x -15, the only way we can make this line have a slope 2/3 is multiply by -2/9 on both sides

=> -2/9 k y = 2/3 x +10/3 ---> (2)

Now if we compare (1) and (2) we see that RHS is equal for both

therefore LHS will also be equal

So,

-2/9 k*y = 1*y

or k = -9/2

Discussion

42.	neha is thinking of a number which is divisible by both by 8 and 17 what is the smallest possible number
Answer» ANSWER: dunno maybe you can ASK your teacher

42.

neha is thinking of a number which is divisible by both by 8 and 17 what is the smallest possible number

Answer»

ANSWER:

dunno

maybe

you

can

ASK

your

teacher

Discussion

43.	(4-1/3x)^3 cubes in expanded form
Answer» ANSWER: The ANS is 555555555ttttttt5555555677667776777676767 Step-by-step EXPLANATION:

43.

(4-1/3x)^3 cubes in expanded form

Answer»

ANSWER:

The ANS is 555555555ttttttt5555555677667776777676767

Step-by-step EXPLANATION:

Discussion

44.	Status simplify 2×3to the power of 1× 5to the power of 2
Answer» ANSWER: Yhvffbju vxzvbkk

44.

Status simplify 2×3to the power of 1× 5to the power of 2

Answer»

ANSWER:

Yhvffbju vxzvbkk

Discussion

45.	In a class there are 30 children and inanother class there are 25 Childrenslif the children of both the classare paired how many pairs are possible?
Answer» Answer: 27 pairs and 1 LEFT out. Step-by-step explanation: Total children = 30+25 = 55 Since, 55 is an odd number, it cannot be divided by 2. THUS, 55 - 1 = 54 students will be taken for making pairs. Now, 54÷2 = 27 Therefore, there will be 27 pairs and 1 left out.

45.

In a class there are 30 children and inanother class there are 25 Childrenslif the children of both the classare paired how many pairs are possible?

Answer»

Answer:

27 pairs and 1 LEFT out.

Step-by-step explanation:

Total children = 30+25 = 55

Since, 55 is an odd number, it cannot be divided by 2. THUS, 55 - 1 = 54 students will be taken for making pairs.

Now,

54÷2 = 27

Therefore, there will be 27 pairs and 1 left out.

Discussion

46.	Two AP’s have the same common difference. The first term of one of these is – 1 and that of theother is – 3. The difference between their second term is
Answer» $\sf{\bold{\large{\boxed{\green{ANSWER}}}}}$ Given : There are 2 arithmetic progressions(AP) The common difference of both AP's is same. First term of AP1 = -1 First term of AP2 = -3 To Find : The difference between second terms of both AP's Solution : Let AP's be 1st AP → A1, a2, A3, .... 2nd AP → b1, b2, b3, .... As it is given, the common difference(d) of both AP's is same. Second term of AP1 = a1 = (- 1 - d) Second term of AP2 = b1 = (-3 - d) From the QUESTION, we can SAY that the difference between first terms of AP's is equal to the difference between second terms. i.e, a2- b2 = -3 -(- 1) a2 - b2 = -2 Therefore, difference between second terms of AP's = -2

46.

Two AP’s have the same common difference. The first term of one of these is – 1 and that of theother is – 3. The difference between their second term is

Answer»

$\sf{\bold{\large{\boxed{\green{ANSWER}}}}}$

Given :

There are 2 arithmetic progressions(AP)
The common difference of both AP's is same.
First term of AP1 = -1
First term of AP2 = -3

To Find :

The difference between second terms of both AP's

Solution :

Let AP's be

1st AP → A1, a2, A3, ....

2nd AP → b1, b2, b3, ....

As it is given, the common difference(d) of both AP's is same.

Second term of AP1 = a1 = (- 1 - d)

Second term of AP2 = b1 = (-3 - d)

From the QUESTION, we can SAY that the difference between first terms of AP's is equal to the difference between second terms.

i.e, a2- b2 = -3 -(- 1)

a2 - b2 = -2

Therefore,

difference between second terms of AP's = -2

Discussion

47.	Find discriminant of the equation 3x²-2x+4=0 & hence find the nature of root
Answer» ANSWER: no ROOT because answer is NEGATIVE, -8

47.

Find discriminant of the equation 3x²-2x+4=0 & hence find the nature of root

Answer»

ANSWER:

no ROOT because answer is NEGATIVE, -8

Discussion

48.	in each of the figure given below, transversal intersects a pair of parallel lines. find the values of X and Y in the following fig .
Answer» GIVEN:- AB \|\| CD, QP = Transversal, ∠RSD = 65°. To Find: Value of x° and y°. Here, x° = y° (VERTICALLY opposite angles) We know, Sum of interior angles of a side = 180° (If such condition matches) ∴ y° + ∠RSD = 180° → y° = 180° - ∠RSD → y° = 180° - 65° → y° = 115° ∴ y° = x° = 115°.

48.

in each of the figure given below, transversal intersects a pair of parallel lines. find the values of X and Y in the following fig .

Answer»

GIVEN:-

AB || CD,
QP = Transversal,
∠RSD = 65°.

To Find: Value of x° and y°.

Here,

x° = y° (VERTICALLY opposite angles)

We know,

Sum of interior angles of a side = 180° (If such condition matches)

∴ y° + ∠RSD = 180°

→ y° = 180° - ∠RSD

→ y° = 180° - 65°

→ y° = 115°

∴ y° = x° = 115°.

Discussion

49.	Is it possible that there are three sides common between triangle and quadrilateral
Answer» ANSWER: IT IS NOT POSSIBLE SUPPORT ME PLZ

49.

Is it possible that there are three sides common between triangle and quadrilateral

Answer»

ANSWER:

IT IS NOT POSSIBLE

SUPPORT ME PLZ

Discussion

50.	What is the value of √3^n*√3=
Answer» Answer: Hope you like this answer ✌️✌️ If U like this answer please FOLLOW me... Step-by-step explanation: The VALUE of √3 ×√3 is “3” or “√9”.

50.

What is the value of √3^n*√3=

Answer»

Answer:

Hope you like this answer ✌️✌️

If U like this answer please FOLLOW me...

Step-by-step explanation:

The VALUE of √3 ×√3 is “3” or “√9”.

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